From 2118f11fea99dcde4ae5d169d006c5244d3b207f Mon Sep 17 00:00:00 2001
From: Alexander Lisachenko <lisachenko.it@gmail.com>
Date: Wed, 19 Aug 2026 05:36:49 +0000
Subject: [PATCH 1/2] fix(parallel): call offsetExists() instead of the
 deprecated contains()

PHP 8.5 deprecates SplObjectStorage::contains() in favour of
offsetExists(). PreforkTaskDirectory keyed its task-to-address map by an
SplObjectStorage and probed it with contains() in both register() and
addressOf(), so every prefork test raised the deprecation on 8.5.

offsetExists() has the same semantics and has existed since PHP 5.3, so
this needs no floor change.

The suite never showed it: every .phpt suppresses E_DEPRECATED. Forcing
error_reporting=E_ALL over each file's own --INI-- block on PHP 8.5.9
with z-engine 8.5.0 turned 12 of the 121 tests red, every one of them on
this deprecation; with the call replaced the same forced-E_ALL run is
121/121 on both PHP 8.4.19 (z-engine 8.4.2) and PHP 8.5.9 (z-engine
8.5.0), and no deprecation of any kind is emitted.

Closes #39

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013foRd1XwLwqjUSkSWeWrMe
---
 src/Parallel/PreforkTaskDirectory.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Parallel/PreforkTaskDirectory.php b/src/Parallel/PreforkTaskDirectory.php
index bf4d3f7..141e29b 100644
--- a/src/Parallel/PreforkTaskDirectory.php
+++ b/src/Parallel/PreforkTaskDirectory.php
@@ -76,7 +76,7 @@ public function __construct()
      */
     public function register(Task $task): int
     {
-        if ($this->addresses->contains($task)) {
+        if ($this->addresses->offsetExists($task)) {
             return $this->addresses[$task];
         }
 
@@ -91,7 +91,7 @@ public function register(Task $task): int
 
     public function addressOf(Task $task): int
     {
-        if (!$this->addresses->contains($task)) {
+        if (!$this->addresses->offsetExists($task)) {
             throw new \LogicException(sprintf(
                 '%s was never published to the workers; without the shared arena (see #7) a task '
                 . 'can only reach a worker by being registered before the fork',

From c72a1c79027ef73ea8a6b1af8ed7ba419af7b730 Mon Sep 17 00:00:00 2001
From: Alexander Lisachenko <lisachenko.it@gmail.com>
Date: Wed, 19 Aug 2026 05:40:17 +0000
Subject: [PATCH 2/2] test(tests): stop suppressing deprecations in the .phpt
 suite
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Every one of the 121 functional tests carried a third --INI-- line,
error_reporting=E_ALL & ~E_DEPRECATED. It was added for a dependency:
PHPUnit's .phpt runner forces display_errors=1, so a deprecation raised
by z-engine — back when it was consumed from a development branch — was
prepended to the captured output of every test and failed --EXPECT--
blocks over noise that had nothing to do with this library.

The stable releases now required (~8.4.2 || ~8.5.0) raise none, and the
line was hiding this package's own deprecations too. That is exactly how
the SplObjectStorage::contains() call PHP 8.5 deprecated stayed green
through 12 tests until it was fixed in the previous commit. Removing the
suppression is only safe in that order, so it goes second.

ffi.enable=1 and opcache.jit=off stay: FFI cannot be enabled at runtime
and the JIT rewrites the executor internals the engine hooks depend on.

The guard test is renamed to match and now checks both halves — that
each file declares both required lines, and that no file sets
error_reporting at all, so a filter cannot be reintroduced to silence a
future deprecation instead of fixing it. tests/Support/childProcess.php
spawns children with the same settings and drops the line for the same
reason. AGENTS.md now documents two lines and why the third went away;
README.md and .github/workflows/ci.yml never named it and are unchanged.

Verified with a runner that reproduces PhptTestCase: 121/121 on PHP
8.4.19 (z-engine 8.4.2) and 121/121 on PHP 8.5.9 (z-engine 8.5.0), with
no diagnostics of any kind in the output.

Closes #38

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013foRd1XwLwqjUSkSWeWrMe
---
 AGENTS.md                                     | 22 +++--
 ...BufferedChannelParksOnlyAtItsCapacity.phpt |  1 -
 ...FreeLoopDoesNotStarveAnotherCoroutine.phpt |  1 -
 ...llPreemptedAfterTheRuntimeHasBeenIdle.phpt |  1 -
 ...extWithdrawsItsRendezvousRegistration.phpt |  1 -
 ...stsABoundedNumberOfWakeupsOnBothSides.phpt |  1 -
 ...nelComposesInASelectWithALocalChannel.phpt |  1 -
 ...tACapacityZeroSharedChannelIsAccepted.phpt |  1 -
 ...insItsBufferBeforeReportingExhaustion.phpt |  1 -
 ...edChannelReportsThatASendWouldNotPark.phpt |  1 -
 ...eRegisteredBeforeTheForkRunsInAWorker.phpt |  1 -
 ...tedResultSlotIsNotRetainedByItsWaiter.phpt |  1 -
 ...textIsSelectableThroughItsDoneChannel.phpt |  1 -
 ...ativeRuntimeHasNoSharedArenaAndSaysSo.phpt |  1 -
 ...verCooperatesEndsTheRunWithADiagnosis.phpt |  1 -
 .../testACriticalSectionIsNeverPreempted.phpt |  1 -
 ...AForkedChildMustRearmItsOwnSliceTimer.phpt |  1 -
 ...herThanAnsweredWithAnotherTasksResult.phpt |  1 -
 ...tALocalChannelNeedsNoPollerDescriptor.phpt |  1 -
 ...etailCannotBeAttachedSaysSoExplicitly.phpt |  1 -
 ...testAPanickingTaskSurfacesAtItsWaiter.phpt |  1 -
 ...arkedSenderThrowsWhenTheChannelCloses.phpt |  1 -
 .../testAPoolOutlivesItsResultSlotSupply.phpt |  1 -
 ...tAPreemptedCoroutineIsNeverThrownInto.phpt |  1 -
 ...ptedCoroutineThatParksIsSafeToDiscard.phpt |  1 -
 ...ecordSplitAcrossTwoReadsIsReassembled.phpt |  1 -
 ...zvousReceiverParksUntilASenderArrives.phpt |  1 -
 ...WaitsUntilAnotherProcessTakesTheValue.phpt |  1 -
 ...tARendezvousWaitIsNeverAFalseDeadlock.phpt |  1 -
 ...sultSlotIsAwaitableFromAnotherProcess.phpt |  1 -
 ...NoRendezvousRegistrationForALaterSend.phpt |  1 -
 ...OnACapacityZeroSharedChannelIsRefused.phpt |  1 -
 ...elAndALocalChannelBothFireInOneSelect.phpt |  1 -
 ...sNeverReadWithATagNewerThanItsPayload.phpt |  1 -
 ...endezvousSendIsStillParkedOnItsTicket.phpt |  1 -
 ...wnedTaskComesBackWithItsIntegerResult.phpt |  1 -
 .../testATaskCanBePinnedToOneWorker.phpt      |  1 -
 ...icSurfacesWithItsClassMessageAndTrace.phpt |  1 -
 ...TickOutsideACoroutineIsNotAPreemption.phpt |  1 -
 ...AWorkerExitsWhenItsParentDiesAbruptly.phpt |  1 -
 ...rInAPreemptivePoolIsActuallyPreempted.phpt |  1 -
 ...illedHoldingAnArenaLockFailsItsWaiter.phpt |  1 -
 ...riticalSectionReportsTheRecoveredLock.phpt |  1 -
 ...MutatesASharedObjectOnTheSameIdentity.phpt |  1 -
 ...testAWorkerTaskReachesItsOwnPreemptor.phpt |  1 -
 ...dyCompleteSlotIsAwaitedWithoutParking.phpt |  1 -
 ...eRunCostsNoMoreCpuThanACooperativeOne.phpt |  1 -
 ...RuntimeDoesNotWakeThePollerEverySlice.phpt |  1 -
 ...reemptivePoolStopsItsOwnSliceTimerToo.phpt |  1 -
 .../testAnIoWaitIsNeverAFalseDeadlock.phpt    |  1 -
 ...dingParallelWaitIsNeverAFalseDeadlock.phpt |  1 -
 ...ndleGivesItsSlotBackWhenItIsCollected.phpt |  1 -
 ...utineIsNeverLeftForTheEngineToDestroy.phpt |  1 -
 ...testAwaitReadableWakesWhenDataArrives.phpt |  1 -
 ...ableWakesWhenTheReaderDrainsTheBuffer.phpt |  1 -
 ...tCancellingAContextCancelsItsChildren.phpt |  1 -
 .../testClosingAChannelTwiceThrows.phpt       |  1 -
 .../testClosingWakesEveryParkedReceiver.phpt  |  1 -
 ...llationIsSelectableOnTheRealScheduler.phpt |  1 -
 ...thTimeoutCancelsWhenItsSleeperReturns.phpt |  1 -
 ...ntrolRecordCarriesOnlyFixedSizeFields.phpt |  1 -
 ...rkersAreReapedRatherThanLeftAsZombies.phpt |  1 -
 ...lockDumpsEveryLocallyBlockedCoroutine.phpt |  1 -
 ...aringASharedRootAfterTheForkIsRefused.phpt |  1 -
 .../testEachPanicKeepsItsOwnSharedError.phpt  |  1 -
 ...TagCrossesAWorkerBoundaryAndComesBack.phpt |  1 -
 ...yTestDeclaresTheThreeRequiredIniLines.phpt | 71 ----------------
 ...eryTestDeclaresTheTwoRequiredIniLines.phpt | 83 +++++++++++++++++++
 ...EveryWorkerForksAtStartAndIsReachable.phpt |  1 -
 ...AChannelStopsWhenItIsClosedAndDrained.phpt |  1 -
 ...tIdleWithAWatchedStreamBlocksInSelect.phpt |  1 -
 ...stKillingAWorkerMidTaskFailsItsWaiter.phpt |  1 -
 ...ainReturningDiscardsPendingCoroutines.phpt |  1 -
 ...MutexReportsAReentrantLockAsADeadlock.phpt |  1 -
 ...SerializesCriticalSectionsInFifoOrder.phpt |  1 -
 ...dSourceDumpsOrHandleKeysASharedObject.phpt |  1 -
 ...cksLaterCallersUntilTheFirstCompletes.phpt |  1 -
 ...eplaysAFailedInitializerToEveryCaller.phpt |  1 -
 ...testOnceRunsItsInitializerExactlyOnce.phpt |  1 -
 ...stParkedReceiversAreServedInFifoOrder.phpt |  1 -
 ...testParkedSendersAreServedInFifoOrder.phpt |  1 -
 ...tPollerRetriesAfterSignalInterruption.phpt |  1 -
 ...ArithmeticMatchesTheUnpreemptedResult.phpt |  1 -
 ...eemptedCoroutinesAreDrainedAtShutdown.phpt |  1 -
 .../testPreemptionIsOffByDefault.phpt         |  1 -
 ...sChannelHandsOffBetweenRealCoroutines.phpt |  1 -
 ...stRendezvousHandsTheValueOverDirectly.phpt |  1 -
 ...dezvousSendParksUntilAReceiverArrives.phpt |  1 -
 ...sultsThatNeedTheArenaAreRefusedByName.phpt |  1 -
 ...testSelectParksAndIsWokenByARealTimer.phpt |  1 -
 ...tParksOnEveryCaseUntilOneBecomesReady.phpt |  1 -
 ...SendCaseCompletesWhenAReceiverArrives.phpt |  1 -
 ...ThrowsWhenItsChannelClosesWhileParked.phpt |  1 -
 ...preadsItsChoiceAcrossAlwaysReadyCases.phpt |  1 -
 ...stSelectTakesAReadyCaseWithoutParking.phpt |  1 -
 ...lectUnlinksTheWaitersOfItsLosingCases.phpt |  1 -
 .../testSelectWithADefaultNeverParks.phpt     |  1 -
 .../testSendOnAClosedChannelThrows.phpt       |  1 -
 .../testSleepingProgramBurnsNoCpu.phpt        |  1 -
 .../testSleepsWakeInDeadlineOrder.phpt        |  1 -
 .../testSpawnedCoroutinesRunInFifoOrder.phpt  |  1 -
 .../testTaggedRecordRoundTripsEveryTag.phpt   |  1 -
 .../testTasksAreDistributedRoundRobin.phpt    |  1 -
 ...trolSocketCarriesOnlyFixedSizeRecords.phpt |  1 -
 ...estTheShippedSourceNeverEncodesAValue.phpt |  1 -
 ...utdownLadderClimbsFromRecordToSigkill.phpt |  1 -
 ...IsArmedAgainAfterASignalCutAPollShort.phpt |  1 -
 ...faceCarriesNoConfigurationOrLifecycle.phpt |  1 -
 ...ontractMatchesTheSubstrateNumerically.phpt |  1 -
 ...kePipeIsDrainedSoThePollerDoesNotSpin.phpt |  1 -
 .../testTimerAfterFiresOnItsDeadline.phpt     |  1 -
 ...fOneProcessRendezvousOnASharedChannel.phpt |  1 -
 ...stTwoSharedRootsOfOneClassAreDistinct.phpt |  1 -
 .../testTwoStreamsWakeIndependently.phpt      |  1 -
 ...stTwoTasksOfOneClassAreInFlightAtOnce.phpt |  1 -
 ...testUncaughtThrowableSurfacesOutOfRun.phpt |  1 -
 ...tUnparkIsIdempotentAndFirstCallerWins.phpt |  1 -
 ...reableValuesAreRefusedWithTheirRemedy.phpt |  1 -
 ...tWaitGroupJoinsRealSleepingCoroutines.phpt |  1 -
 .../testWaitGroupRejectsANegativeCounter.phpt |  1 -
 .../testWaitGroupWaitsForEveryUnitOfWork.phpt |  1 -
 ...estWatchReadableWakesAnotherCoroutine.phpt |  1 -
 .../testYieldGoesToTheTailOfTheRunQueue.phpt  |  1 -
 tests/Support/childProcess.php                |  7 +-
 124 files changed, 101 insertions(+), 202 deletions(-)
 delete mode 100644 tests/Functional/testEveryTestDeclaresTheThreeRequiredIniLines.phpt
 create mode 100644 tests/Functional/testEveryTestDeclaresTheTwoRequiredIniLines.phpt

diff --git a/AGENTS.md b/AGENTS.md
index d86fddf..e2ff62f 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -329,9 +329,16 @@ as permission to run Layer 2 or parallel code against a mismatched tree.
 
 - `ffi.enable=1` — cannot be turned on at runtime.
 - `opcache.jit=off` — the JIT rewrites the very executor internals the engine hooks depend on.
-- `error_reporting=E_ALL & ~E_DEPRECATED` — the z-engine dev lines may report deprecations from
-  dependency code, and PHPUnit's `.phpt` runner forces `display_errors=1`, so an unsuppressed
-  deprecation is prepended to a test's captured output and fails an `--EXPECT--` block over noise.
+
+Those two, and nothing else. A third line, `error_reporting=E_ALL & ~E_DEPRECATED`, used to sit
+alongside them: PHPUnit's `.phpt` runner forces `display_errors=1`, so a deprecation raised by the
+**dependency** — z-engine, back when it was consumed from a development branch — was prepended to a
+test's captured output and failed an `--EXPECT--` block over noise. The stable releases now required
+(`~8.4.2 || ~8.5.0`) raise none, and the suppression was hiding **this package's own** deprecations
+too: that is how the `SplObjectStorage::contains()` call PHP 8.5 deprecated (#39) sat green through
+12 tests. The suite now runs at the runner's default `error_reporting`, so a deprecation from our
+code fails a test the day it appears. **Do not re-add a diagnostic filter to a `.phpt`** — the guard
+test rejects any `error_reporting` line in an `--INI--` section.
 
 ```bash
 php8.4 -d ffi.enable=1 -d opcache.jit=off vendor/bin/phpunit
@@ -360,10 +367,11 @@ version and a minimal reproducer, and report it.
 
 The suite is PHPUnit 12 driving `.phpt` files in `tests/Functional/`, one behaviour per file.
 
-- **`--INI--` is mandatory and carries all three lines.** The child processes the runner spawns
-  inherit nothing by luck. `tests/Functional/testEveryTestDeclaresTheThreeRequiredIniLines.phpt`
-  scans the whole suite — itself included — and fails naming the file and the missing setting, so a
-  new test cannot quietly omit one.
+- **`--INI--` is mandatory and carries both lines** — `ffi.enable=1` and `opcache.jit=off`, and no
+  diagnostic filter beside them. The child processes the runner spawns inherit nothing by luck.
+  `tests/Functional/testEveryTestDeclaresTheTwoRequiredIniLines.phpt` scans the whole suite — itself
+  included — and fails naming the file and the missing setting, so a new test cannot quietly omit
+  one; it fails the same way on an `error_reporting` line that would silence a real bug.
 - **`test<WhatItDoes>.phpt`**, and the `--TEST--` line says the behaviour, not the class.
 - **Prefer `--EXPECT--`** (exact match). Tests about errors `echo` the caught message rather than
   `var_dump()`ing it, so no string lengths need maintaining.
diff --git a/tests/Functional/testABufferedChannelParksOnlyAtItsCapacity.phpt b/tests/Functional/testABufferedChannelParksOnlyAtItsCapacity.phpt
index f5b5d94..d8fb08f 100644
--- a/tests/Functional/testABufferedChannelParksOnlyAtItsCapacity.phpt
+++ b/tests/Functional/testABufferedChannelParksOnlyAtItsCapacity.phpt
@@ -3,7 +3,6 @@ A buffered send parks only when the buffer is full, and a receive only when it i
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACallFreeLoopDoesNotStarveAnotherCoroutine.phpt b/tests/Functional/testACallFreeLoopDoesNotStarveAnotherCoroutine.phpt
index 3f4580c..1fe033f 100644
--- a/tests/Functional/testACallFreeLoopDoesNotStarveAnotherCoroutine.phpt
+++ b/tests/Functional/testACallFreeLoopDoesNotStarveAnotherCoroutine.phpt
@@ -3,7 +3,6 @@ A call-free arithmetic loop does not starve another coroutine when the runtime i
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACallFreeLoopIsStillPreemptedAfterTheRuntimeHasBeenIdle.phpt b/tests/Functional/testACallFreeLoopIsStillPreemptedAfterTheRuntimeHasBeenIdle.phpt
index 99c911c..3670ed0 100644
--- a/tests/Functional/testACallFreeLoopIsStillPreemptedAfterTheRuntimeHasBeenIdle.phpt
+++ b/tests/Functional/testACallFreeLoopIsStillPreemptedAfterTheRuntimeHasBeenIdle.phpt
@@ -3,7 +3,6 @@ A call-free loop that starts after an idle stretch is preempted exactly as one t
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACancelledContextWithdrawsItsRendezvousRegistration.phpt b/tests/Functional/testACancelledContextWithdrawsItsRendezvousRegistration.phpt
index 6a987e5..2b0eda9 100644
--- a/tests/Functional/testACancelledContextWithdrawsItsRendezvousRegistration.phpt
+++ b/tests/Functional/testACancelledContextWithdrawsItsRendezvousRegistration.phpt
@@ -3,7 +3,6 @@ A rendezvous select abandoned by a cancelled context leaves no registration behi
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACapacityZeroHandoffCostsABoundedNumberOfWakeupsOnBothSides.phpt b/tests/Functional/testACapacityZeroHandoffCostsABoundedNumberOfWakeupsOnBothSides.phpt
index f67616f..0048d1d 100644
--- a/tests/Functional/testACapacityZeroHandoffCostsABoundedNumberOfWakeupsOnBothSides.phpt
+++ b/tests/Functional/testACapacityZeroHandoffCostsABoundedNumberOfWakeupsOnBothSides.phpt
@@ -3,7 +3,6 @@ A run of cross-process rendezvous handoffs costs a bounded number of wakeups in
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACapacityZeroSharedChannelComposesInASelectWithALocalChannel.phpt b/tests/Functional/testACapacityZeroSharedChannelComposesInASelectWithALocalChannel.phpt
index c26d673..db7df69 100644
--- a/tests/Functional/testACapacityZeroSharedChannelComposesInASelectWithALocalChannel.phpt
+++ b/tests/Functional/testACapacityZeroSharedChannelComposesInASelectWithALocalChannel.phpt
@@ -3,7 +3,6 @@ One select resolves a capacity-0 shared channel and a local channel, and unlinks
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACapacityZeroSharedChannelIsAccepted.phpt b/tests/Functional/testACapacityZeroSharedChannelIsAccepted.phpt
index 2b2cf7e..c433bc8 100644
--- a/tests/Functional/testACapacityZeroSharedChannelIsAccepted.phpt
+++ b/tests/Functional/testACapacityZeroSharedChannelIsAccepted.phpt
@@ -3,7 +3,6 @@ A shared channel can be declared with capacity 0, and reports itself as a rendez
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAClosedChannelDrainsItsBufferBeforeReportingExhaustion.phpt b/tests/Functional/testAClosedChannelDrainsItsBufferBeforeReportingExhaustion.phpt
index 7daddbd..dff385d 100644
--- a/tests/Functional/testAClosedChannelDrainsItsBufferBeforeReportingExhaustion.phpt
+++ b/tests/Functional/testAClosedChannelDrainsItsBufferBeforeReportingExhaustion.phpt
@@ -3,7 +3,6 @@ A closed channel keeps delivering buffered values with ok = true, and only then
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAClosedChannelReportsThatASendWouldNotPark.phpt b/tests/Functional/testAClosedChannelReportsThatASendWouldNotPark.phpt
index 72adeb4..a6e5770 100644
--- a/tests/Functional/testAClosedChannelReportsThatASendWouldNotPark.phpt
+++ b/tests/Functional/testAClosedChannelReportsThatASendWouldNotPark.phpt
@@ -3,7 +3,6 @@ A closed channel reports that both a send and a receive would complete without p
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAClosureRegisteredBeforeTheForkRunsInAWorker.phpt b/tests/Functional/testAClosureRegisteredBeforeTheForkRunsInAWorker.phpt
index 010385f..5eaea2b 100644
--- a/tests/Functional/testAClosureRegisteredBeforeTheForkRunsInAWorker.phpt
+++ b/tests/Functional/testAClosureRegisteredBeforeTheForkRunsInAWorker.phpt
@@ -3,7 +3,6 @@ A closure registered before the fork barrier is callable in a worker, and a late
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACompletedResultSlotIsNotRetainedByItsWaiter.phpt b/tests/Functional/testACompletedResultSlotIsNotRetainedByItsWaiter.phpt
index 88ca2c7..5cb5b71 100644
--- a/tests/Functional/testACompletedResultSlotIsNotRetainedByItsWaiter.phpt
+++ b/tests/Functional/testACompletedResultSlotIsNotRetainedByItsWaiter.phpt
@@ -3,7 +3,6 @@ The local view of a result slot is dropped once the handle that could still read
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAContextIsSelectableThroughItsDoneChannel.phpt b/tests/Functional/testAContextIsSelectableThroughItsDoneChannel.phpt
index 6ccd079..690173e 100644
--- a/tests/Functional/testAContextIsSelectableThroughItsDoneChannel.phpt
+++ b/tests/Functional/testAContextIsSelectableThroughItsDoneChannel.phpt
@@ -3,7 +3,6 @@ A context takes part in a select through its done channel
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACooperativeRuntimeHasNoSharedArenaAndSaysSo.phpt b/tests/Functional/testACooperativeRuntimeHasNoSharedArenaAndSaysSo.phpt
index 0d99c7b..97cf193 100644
--- a/tests/Functional/testACooperativeRuntimeHasNoSharedArenaAndSaysSo.phpt
+++ b/tests/Functional/testACooperativeRuntimeHasNoSharedArenaAndSaysSo.phpt
@@ -3,7 +3,6 @@ A runtime without workers maps no arena and refuses the shared surface with the
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACoroutineThatNeverCooperatesEndsTheRunWithADiagnosis.phpt b/tests/Functional/testACoroutineThatNeverCooperatesEndsTheRunWithADiagnosis.phpt
index 9e71641..028d523 100644
--- a/tests/Functional/testACoroutineThatNeverCooperatesEndsTheRunWithADiagnosis.phpt
+++ b/tests/Functional/testACoroutineThatNeverCooperatesEndsTheRunWithADiagnosis.phpt
@@ -3,7 +3,6 @@ A coroutine that never parks and never returns ends the run with a diagnosis ins
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testACriticalSectionIsNeverPreempted.phpt b/tests/Functional/testACriticalSectionIsNeverPreempted.phpt
index 5499ba5..28b38e7 100644
--- a/tests/Functional/testACriticalSectionIsNeverPreempted.phpt
+++ b/tests/Functional/testACriticalSectionIsNeverPreempted.phpt
@@ -3,7 +3,6 @@ A coroutine inside a critical section keeps the CPU, and the deferred preemption
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAForkedChildMustRearmItsOwnSliceTimer.phpt b/tests/Functional/testAForkedChildMustRearmItsOwnSliceTimer.phpt
index b0d0978..91a544f 100644
--- a/tests/Functional/testAForkedChildMustRearmItsOwnSliceTimer.phpt
+++ b/tests/Functional/testAForkedChildMustRearmItsOwnSliceTimer.phpt
@@ -3,7 +3,6 @@ fork() clears the slice timer in the child, and rearmAfterFork() puts it back
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAHandleOnARecycledSlotIsRefusedRatherThanAnsweredWithAnotherTasksResult.phpt b/tests/Functional/testAHandleOnARecycledSlotIsRefusedRatherThanAnsweredWithAnotherTasksResult.phpt
index 0247aa9..c7b1cb8 100644
--- a/tests/Functional/testAHandleOnARecycledSlotIsRefusedRatherThanAnsweredWithAnotherTasksResult.phpt
+++ b/tests/Functional/testAHandleOnARecycledSlotIsRefusedRatherThanAnsweredWithAnotherTasksResult.phpt
@@ -3,7 +3,6 @@ A handle on a recycled slot id is refused rather than answered with the result o
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testALocalChannelNeedsNoPollerDescriptor.phpt b/tests/Functional/testALocalChannelNeedsNoPollerDescriptor.phpt
index 0712706..cccc3be 100644
--- a/tests/Functional/testALocalChannelNeedsNoPollerDescriptor.phpt
+++ b/tests/Functional/testALocalChannelNeedsNoPollerDescriptor.phpt
@@ -3,7 +3,6 @@ A local channel exposes no readiness descriptor, because nothing outside the pro
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAPanicWhoseDetailCannotBeAttachedSaysSoExplicitly.phpt b/tests/Functional/testAPanicWhoseDetailCannotBeAttachedSaysSoExplicitly.phpt
index 8254e5d..f18a23b 100644
--- a/tests/Functional/testAPanicWhoseDetailCannotBeAttachedSaysSoExplicitly.phpt
+++ b/tests/Functional/testAPanicWhoseDetailCannotBeAttachedSaysSoExplicitly.phpt
@@ -3,7 +3,6 @@ A panic slot whose detail does not attach as a SharedError says so, instead of p
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAPanickingTaskSurfacesAtItsWaiter.phpt b/tests/Functional/testAPanickingTaskSurfacesAtItsWaiter.phpt
index ae2c9c3..46024e6 100644
--- a/tests/Functional/testAPanickingTaskSurfacesAtItsWaiter.phpt
+++ b/tests/Functional/testAPanickingTaskSurfacesAtItsWaiter.phpt
@@ -3,7 +3,6 @@ A task that ends in an uncaught throwable fails its waiter and leaves the worker
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAParkedSenderThrowsWhenTheChannelCloses.phpt b/tests/Functional/testAParkedSenderThrowsWhenTheChannelCloses.phpt
index 1f02fb7..9db1fda 100644
--- a/tests/Functional/testAParkedSenderThrowsWhenTheChannelCloses.phpt
+++ b/tests/Functional/testAParkedSenderThrowsWhenTheChannelCloses.phpt
@@ -3,7 +3,6 @@ A sender that was already parked when the channel closed throws
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAPoolOutlivesItsResultSlotSupply.phpt b/tests/Functional/testAPoolOutlivesItsResultSlotSupply.phpt
index cbe6eb8..5456844 100644
--- a/tests/Functional/testAPoolOutlivesItsResultSlotSupply.phpt
+++ b/tests/Functional/testAPoolOutlivesItsResultSlotSupply.phpt
@@ -3,7 +3,6 @@ A pool spawning far more tasks than the slot supply runs to completion, reusing
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAPreemptedCoroutineIsNeverThrownInto.phpt b/tests/Functional/testAPreemptedCoroutineIsNeverThrownInto.phpt
index e48e058..cd9f171 100644
--- a/tests/Functional/testAPreemptedCoroutineIsNeverThrownInto.phpt
+++ b/tests/Functional/testAPreemptedCoroutineIsNeverThrownInto.phpt
@@ -3,7 +3,6 @@ A preempted coroutine refuses to be thrown into, while a coroutine that suspende
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAPreemptedCoroutineThatParksIsSafeToDiscard.phpt b/tests/Functional/testAPreemptedCoroutineThatParksIsSafeToDiscard.phpt
index 500842f..74f5a1d 100644
--- a/tests/Functional/testAPreemptedCoroutineThatParksIsSafeToDiscard.phpt
+++ b/tests/Functional/testAPreemptedCoroutineThatParksIsSafeToDiscard.phpt
@@ -3,7 +3,6 @@ A preempted coroutine that goes on to park on a channel is drained out of the ca
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testARecordSplitAcrossTwoReadsIsReassembled.phpt b/tests/Functional/testARecordSplitAcrossTwoReadsIsReassembled.phpt
index 5632732..7ec8140 100644
--- a/tests/Functional/testARecordSplitAcrossTwoReadsIsReassembled.phpt
+++ b/tests/Functional/testARecordSplitAcrossTwoReadsIsReassembled.phpt
@@ -3,7 +3,6 @@ A control record delivered in two pieces is held back until all 16 bytes are the
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testARendezvousReceiverParksUntilASenderArrives.phpt b/tests/Functional/testARendezvousReceiverParksUntilASenderArrives.phpt
index a95d004..5bf1eb0 100644
--- a/tests/Functional/testARendezvousReceiverParksUntilASenderArrives.phpt
+++ b/tests/Functional/testARendezvousReceiverParksUntilASenderArrives.phpt
@@ -3,7 +3,6 @@ A receive on a capacity-0 shared channel parks on the poller until another proce
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testARendezvousSendWaitsUntilAnotherProcessTakesTheValue.phpt b/tests/Functional/testARendezvousSendWaitsUntilAnotherProcessTakesTheValue.phpt
index 60a81f9..5da2fe0 100644
--- a/tests/Functional/testARendezvousSendWaitsUntilAnotherProcessTakesTheValue.phpt
+++ b/tests/Functional/testARendezvousSendWaitsUntilAnotherProcessTakesTheValue.phpt
@@ -3,7 +3,6 @@ A send on a capacity-0 shared channel returns only once another process has take
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testARendezvousWaitIsNeverAFalseDeadlock.phpt b/tests/Functional/testARendezvousWaitIsNeverAFalseDeadlock.phpt
index b112fe2..8c13352 100644
--- a/tests/Functional/testARendezvousWaitIsNeverAFalseDeadlock.phpt
+++ b/tests/Functional/testARendezvousWaitIsNeverAFalseDeadlock.phpt
@@ -3,7 +3,6 @@ A coroutine parked on a capacity-0 shared channel is not reported as a deadlock
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAResultSlotIsAwaitableFromAnotherProcess.phpt b/tests/Functional/testAResultSlotIsAwaitableFromAnotherProcess.phpt
index d35be14..f160af1 100644
--- a/tests/Functional/testAResultSlotIsAwaitableFromAnotherProcess.phpt
+++ b/tests/Functional/testAResultSlotIsAwaitableFromAnotherProcess.phpt
@@ -3,7 +3,6 @@ A result slot opened by the parent is awaited from inside a different worker
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testASelectLoserLeavesNoRendezvousRegistrationForALaterSend.phpt b/tests/Functional/testASelectLoserLeavesNoRendezvousRegistrationForALaterSend.phpt
index 5ff9c18..ef3ac5e 100644
--- a/tests/Functional/testASelectLoserLeavesNoRendezvousRegistrationForALaterSend.phpt
+++ b/tests/Functional/testASelectLoserLeavesNoRendezvousRegistrationForALaterSend.phpt
@@ -3,7 +3,6 @@ A capacity-0 shared channel that lost a select is no longer a rendezvous partner
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testASelectSendCaseOnACapacityZeroSharedChannelIsRefused.phpt b/tests/Functional/testASelectSendCaseOnACapacityZeroSharedChannelIsRefused.phpt
index f052f53..eb89e2a 100644
--- a/tests/Functional/testASelectSendCaseOnACapacityZeroSharedChannelIsRefused.phpt
+++ b/tests/Functional/testASelectSendCaseOnACapacityZeroSharedChannelIsRefused.phpt
@@ -3,7 +3,6 @@ A capacity-0 shared channel cannot be a select send case, and the refusal names
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testASharedChannelAndALocalChannelBothFireInOneSelect.phpt b/tests/Functional/testASharedChannelAndALocalChannelBothFireInOneSelect.phpt
index 4f9f634..d5d9636 100644
--- a/tests/Functional/testASharedChannelAndALocalChannelBothFireInOneSelect.phpt
+++ b/tests/Functional/testASharedChannelAndALocalChannelBothFireInOneSelect.phpt
@@ -3,7 +3,6 @@ One select over a shared channel and a local channel resolves both, the shared o
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testASlotIsNeverReadWithATagNewerThanItsPayload.phpt b/tests/Functional/testASlotIsNeverReadWithATagNewerThanItsPayload.phpt
index 5443c0a..19897ee 100644
--- a/tests/Functional/testASlotIsNeverReadWithATagNewerThanItsPayload.phpt
+++ b/tests/Functional/testASlotIsNeverReadWithATagNewerThanItsPayload.phpt
@@ -3,7 +3,6 @@ A result slot read under contention never shows a tag from one generation and a
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testASlotIsRecycledWhileARendezvousSendIsStillParkedOnItsTicket.phpt b/tests/Functional/testASlotIsRecycledWhileARendezvousSendIsStillParkedOnItsTicket.phpt
index c0b96da..cf98c06 100644
--- a/tests/Functional/testASlotIsRecycledWhileARendezvousSendIsStillParkedOnItsTicket.phpt
+++ b/tests/Functional/testASlotIsRecycledWhileARendezvousSendIsStillParkedOnItsTicket.phpt
@@ -3,7 +3,6 @@ A result slot is claimed and given back while a rendezvous send waits for its va
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testASpawnedTaskComesBackWithItsIntegerResult.phpt b/tests/Functional/testASpawnedTaskComesBackWithItsIntegerResult.phpt
index 68bcecc..58ccaac 100644
--- a/tests/Functional/testASpawnedTaskComesBackWithItsIntegerResult.phpt
+++ b/tests/Functional/testASpawnedTaskComesBackWithItsIntegerResult.phpt
@@ -3,7 +3,6 @@ A task dispatched to a worker runs there and its integer result comes back to th
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testATaskCanBePinnedToOneWorker.phpt b/tests/Functional/testATaskCanBePinnedToOneWorker.phpt
index 155574a..64f37f5 100644
--- a/tests/Functional/testATaskCanBePinnedToOneWorker.phpt
+++ b/tests/Functional/testATaskCanBePinnedToOneWorker.phpt
@@ -3,7 +3,6 @@ A task pinned to a worker always runs there, and pinning to a worker that is not
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testATaskPanicSurfacesWithItsClassMessageAndTrace.phpt b/tests/Functional/testATaskPanicSurfacesWithItsClassMessageAndTrace.phpt
index 814cc45..30cb45e 100644
--- a/tests/Functional/testATaskPanicSurfacesWithItsClassMessageAndTrace.phpt
+++ b/tests/Functional/testATaskPanicSurfacesWithItsClassMessageAndTrace.phpt
@@ -3,7 +3,6 @@ A task panic reaches the waiter as a ParallelTaskException carrying class, messa
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testATickOutsideACoroutineIsNotAPreemption.phpt b/tests/Functional/testATickOutsideACoroutineIsNotAPreemption.phpt
index 905b8b8..524ba21 100644
--- a/tests/Functional/testATickOutsideACoroutineIsNotAPreemption.phpt
+++ b/tests/Functional/testATickOutsideACoroutineIsNotAPreemption.phpt
@@ -3,7 +3,6 @@ Slice ticks that land outside any coroutine are harmless and preempt nothing
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAWorkerExitsWhenItsParentDiesAbruptly.phpt b/tests/Functional/testAWorkerExitsWhenItsParentDiesAbruptly.phpt
index 0178302..379a510 100644
--- a/tests/Functional/testAWorkerExitsWhenItsParentDiesAbruptly.phpt
+++ b/tests/Functional/testAWorkerExitsWhenItsParentDiesAbruptly.phpt
@@ -3,7 +3,6 @@ A worker whose parent is SIGKILLed exits on control-socket EOF instead of becomi
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAWorkerInAPreemptivePoolIsActuallyPreempted.phpt b/tests/Functional/testAWorkerInAPreemptivePoolIsActuallyPreempted.phpt
index 03a12ae..dece937 100644
--- a/tests/Functional/testAWorkerInAPreemptivePoolIsActuallyPreempted.phpt
+++ b/tests/Functional/testAWorkerInAPreemptivePoolIsActuallyPreempted.phpt
@@ -3,7 +3,6 @@ A call-free loop inside a task does not starve another coroutine in that same wo
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAWorkerKilledHoldingAnArenaLockFailsItsWaiter.phpt b/tests/Functional/testAWorkerKilledHoldingAnArenaLockFailsItsWaiter.phpt
index b61e98a..734026e 100644
--- a/tests/Functional/testAWorkerKilledHoldingAnArenaLockFailsItsWaiter.phpt
+++ b/tests/Functional/testAWorkerKilledHoldingAnArenaLockFailsItsWaiter.phpt
@@ -3,7 +3,6 @@ A worker killed while it holds an arena lock fails its waiter instead of hanging
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAWorkerKilledInsideACriticalSectionReportsTheRecoveredLock.phpt b/tests/Functional/testAWorkerKilledInsideACriticalSectionReportsTheRecoveredLock.phpt
index 1426cb0..bdb1287 100644
--- a/tests/Functional/testAWorkerKilledInsideACriticalSectionReportsTheRecoveredLock.phpt
+++ b/tests/Functional/testAWorkerKilledInsideACriticalSectionReportsTheRecoveredLock.phpt
@@ -3,7 +3,6 @@ A worker killed inside an arena critical section is reported as a recovered lock
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAWorkerMutatesASharedObjectOnTheSameIdentity.phpt b/tests/Functional/testAWorkerMutatesASharedObjectOnTheSameIdentity.phpt
index 8bdf28c..acfa42c 100644
--- a/tests/Functional/testAWorkerMutatesASharedObjectOnTheSameIdentity.phpt
+++ b/tests/Functional/testAWorkerMutatesASharedObjectOnTheSameIdentity.phpt
@@ -3,7 +3,6 @@ A worker mutates a shared object and the parent observes it on the very same ins
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAWorkerTaskReachesItsOwnPreemptor.phpt b/tests/Functional/testAWorkerTaskReachesItsOwnPreemptor.phpt
index 61eda8f..7e9e9b5 100644
--- a/tests/Functional/testAWorkerTaskReachesItsOwnPreemptor.phpt
+++ b/tests/Functional/testAWorkerTaskReachesItsOwnPreemptor.phpt
@@ -3,7 +3,6 @@ A task in a preemptive pool reaches the worker's own armed preemptor through the
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAnAlreadyCompleteSlotIsAwaitedWithoutParking.phpt b/tests/Functional/testAnAlreadyCompleteSlotIsAwaitedWithoutParking.phpt
index 5e6ba4e..ccf8c46 100644
--- a/tests/Functional/testAnAlreadyCompleteSlotIsAwaitedWithoutParking.phpt
+++ b/tests/Functional/testAnAlreadyCompleteSlotIsAwaitedWithoutParking.phpt
@@ -3,7 +3,6 @@ Awaiting a slot that is already settled returns without parking the coroutine
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAnIdlePreemptiveRunCostsNoMoreCpuThanACooperativeOne.phpt b/tests/Functional/testAnIdlePreemptiveRunCostsNoMoreCpuThanACooperativeOne.phpt
index 2f7cb6c..3217a69 100644
--- a/tests/Functional/testAnIdlePreemptiveRunCostsNoMoreCpuThanACooperativeOne.phpt
+++ b/tests/Functional/testAnIdlePreemptiveRunCostsNoMoreCpuThanACooperativeOne.phpt
@@ -3,7 +3,6 @@ Idling with preemption armed costs about as much CPU as idling cooperatively
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAnIdlePreemptiveRuntimeDoesNotWakeThePollerEverySlice.phpt b/tests/Functional/testAnIdlePreemptiveRuntimeDoesNotWakeThePollerEverySlice.phpt
index 640668d..4898e7f 100644
--- a/tests/Functional/testAnIdlePreemptiveRuntimeDoesNotWakeThePollerEverySlice.phpt
+++ b/tests/Functional/testAnIdlePreemptiveRuntimeDoesNotWakeThePollerEverySlice.phpt
@@ -3,7 +3,6 @@ An idle preemptive runtime blocks in one poll instead of waking once per slice
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAnIdleWorkerInAPreemptivePoolStopsItsOwnSliceTimerToo.phpt b/tests/Functional/testAnIdleWorkerInAPreemptivePoolStopsItsOwnSliceTimerToo.phpt
index 24e23f2..ad2ede8 100644
--- a/tests/Functional/testAnIdleWorkerInAPreemptivePoolStopsItsOwnSliceTimerToo.phpt
+++ b/tests/Functional/testAnIdleWorkerInAPreemptivePoolStopsItsOwnSliceTimerToo.phpt
@@ -3,7 +3,6 @@ A worker waiting for its next record wakes as rarely as an idle single-process r
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAnIoWaitIsNeverAFalseDeadlock.phpt b/tests/Functional/testAnIoWaitIsNeverAFalseDeadlock.phpt
index 643917e..a8cce22 100644
--- a/tests/Functional/testAnIoWaitIsNeverAFalseDeadlock.phpt
+++ b/tests/Functional/testAnIoWaitIsNeverAFalseDeadlock.phpt
@@ -3,7 +3,6 @@ A coroutine parked on stream readiness never triggers a deadlock, however long i
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAnOutstandingParallelWaitIsNeverAFalseDeadlock.phpt b/tests/Functional/testAnOutstandingParallelWaitIsNeverAFalseDeadlock.phpt
index 44bdddd..1e0bf07 100644
--- a/tests/Functional/testAnOutstandingParallelWaitIsNeverAFalseDeadlock.phpt
+++ b/tests/Functional/testAnOutstandingParallelWaitIsNeverAFalseDeadlock.phpt
@@ -3,7 +3,6 @@ A coroutine waiting on a JoinHandle or a shared channel is not reported as a dea
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAnUnawaitedHandleGivesItsSlotBackWhenItIsCollected.phpt b/tests/Functional/testAnUnawaitedHandleGivesItsSlotBackWhenItIsCollected.phpt
index baca7b7..4eb910f 100644
--- a/tests/Functional/testAnUnawaitedHandleGivesItsSlotBackWhenItIsCollected.phpt
+++ b/tests/Functional/testAnUnawaitedHandleGivesItsSlotBackWhenItIsCollected.phpt
@@ -3,7 +3,6 @@ A settled handle that is collected without ever being awaited gives its result s
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAnUndrainableCoroutineIsNeverLeftForTheEngineToDestroy.phpt b/tests/Functional/testAnUndrainableCoroutineIsNeverLeftForTheEngineToDestroy.phpt
index c3265ec..330a399 100644
--- a/tests/Functional/testAnUndrainableCoroutineIsNeverLeftForTheEngineToDestroy.phpt
+++ b/tests/Functional/testAnUndrainableCoroutineIsNeverLeftForTheEngineToDestroy.phpt
@@ -3,7 +3,6 @@ The process holding an undrainable coroutine is ended deliberately, never by the
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAwaitReadableWakesWhenDataArrives.phpt b/tests/Functional/testAwaitReadableWakesWhenDataArrives.phpt
index 6d91922..4d2f50f 100644
--- a/tests/Functional/testAwaitReadableWakesWhenDataArrives.phpt
+++ b/tests/Functional/testAwaitReadableWakesWhenDataArrives.phpt
@@ -3,7 +3,6 @@ Io::awaitReadable parks the coroutine and wakes it exactly when data arrives
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testAwaitWritableWakesWhenTheReaderDrainsTheBuffer.phpt b/tests/Functional/testAwaitWritableWakesWhenTheReaderDrainsTheBuffer.phpt
index e5ebf43..80cf0c1 100644
--- a/tests/Functional/testAwaitWritableWakesWhenTheReaderDrainsTheBuffer.phpt
+++ b/tests/Functional/testAwaitWritableWakesWhenTheReaderDrainsTheBuffer.phpt
@@ -3,7 +3,6 @@ Io::awaitWritable parks on a full socket buffer and wakes when the far end drain
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testCancellingAContextCancelsItsChildren.phpt b/tests/Functional/testCancellingAContextCancelsItsChildren.phpt
index c2347e5..f24770b 100644
--- a/tests/Functional/testCancellingAContextCancelsItsChildren.phpt
+++ b/tests/Functional/testCancellingAContextCancelsItsChildren.phpt
@@ -3,7 +3,6 @@ Cancelling a context cancels every context below it
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testClosingAChannelTwiceThrows.phpt b/tests/Functional/testClosingAChannelTwiceThrows.phpt
index 1fb306a..5e78b24 100644
--- a/tests/Functional/testClosingAChannelTwiceThrows.phpt
+++ b/tests/Functional/testClosingAChannelTwiceThrows.phpt
@@ -3,7 +3,6 @@ Closing an already closed channel throws
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testClosingWakesEveryParkedReceiver.phpt b/tests/Functional/testClosingWakesEveryParkedReceiver.phpt
index 5aca435..7419b5d 100644
--- a/tests/Functional/testClosingWakesEveryParkedReceiver.phpt
+++ b/tests/Functional/testClosingWakesEveryParkedReceiver.phpt
@@ -3,7 +3,6 @@ Closing a channel wakes every parked receiver with no value
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testContextCancellationIsSelectableOnTheRealScheduler.phpt b/tests/Functional/testContextCancellationIsSelectableOnTheRealScheduler.phpt
index 04e3b60..6061f26 100644
--- a/tests/Functional/testContextCancellationIsSelectableOnTheRealScheduler.phpt
+++ b/tests/Functional/testContextCancellationIsSelectableOnTheRealScheduler.phpt
@@ -3,7 +3,6 @@ Context cancellation is selectable and cancels children under the real scheduler
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testContextWithTimeoutCancelsWhenItsSleeperReturns.phpt b/tests/Functional/testContextWithTimeoutCancelsWhenItsSleeperReturns.phpt
index 7a262d5..15caa5e 100644
--- a/tests/Functional/testContextWithTimeoutCancelsWhenItsSleeperReturns.phpt
+++ b/tests/Functional/testContextWithTimeoutCancelsWhenItsSleeperReturns.phpt
@@ -3,7 +3,6 @@ A context with a timeout cancels itself once its sleeper returns
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testControlRecordCarriesOnlyFixedSizeFields.phpt b/tests/Functional/testControlRecordCarriesOnlyFixedSizeFields.phpt
index 7bb2279..85d29a5 100644
--- a/tests/Functional/testControlRecordCarriesOnlyFixedSizeFields.phpt
+++ b/tests/Functional/testControlRecordCarriesOnlyFixedSizeFields.phpt
@@ -3,7 +3,6 @@ A control record is exactly 16 bytes and carries opcode, tag, id and address
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testDeadWorkersAreReapedRatherThanLeftAsZombies.phpt b/tests/Functional/testDeadWorkersAreReapedRatherThanLeftAsZombies.phpt
index 9f159ab..58a674f 100644
--- a/tests/Functional/testDeadWorkersAreReapedRatherThanLeftAsZombies.phpt
+++ b/tests/Functional/testDeadWorkersAreReapedRatherThanLeftAsZombies.phpt
@@ -3,7 +3,6 @@ SIGCHLD reaping clears a dead worker from the process table without waiting for
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testDeadlockDumpsEveryLocallyBlockedCoroutine.phpt b/tests/Functional/testDeadlockDumpsEveryLocallyBlockedCoroutine.phpt
index 79672fd..60bb9cc 100644
--- a/tests/Functional/testDeadlockDumpsEveryLocallyBlockedCoroutine.phpt
+++ b/tests/Functional/testDeadlockDumpsEveryLocallyBlockedCoroutine.phpt
@@ -3,7 +3,6 @@ A deadlock names every locally blocked coroutine, its wait and its spawn site, a
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testDeclaringASharedRootAfterTheForkIsRefused.phpt b/tests/Functional/testDeclaringASharedRootAfterTheForkIsRefused.phpt
index 84f89c0..9d0c921 100644
--- a/tests/Functional/testDeclaringASharedRootAfterTheForkIsRefused.phpt
+++ b/tests/Functional/testDeclaringASharedRootAfterTheForkIsRefused.phpt
@@ -3,7 +3,6 @@ Declaring a shared root or a shared closure after the pool has forked is an erro
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testEachPanicKeepsItsOwnSharedError.phpt b/tests/Functional/testEachPanicKeepsItsOwnSharedError.phpt
index 0ee1932..fa2729a 100644
--- a/tests/Functional/testEachPanicKeepsItsOwnSharedError.phpt
+++ b/tests/Functional/testEachPanicKeepsItsOwnSharedError.phpt
@@ -3,7 +3,6 @@ Two panicking workers each keep their own error: class, message and trace all be
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testEveryTagCrossesAWorkerBoundaryAndComesBack.phpt b/tests/Functional/testEveryTagCrossesAWorkerBoundaryAndComesBack.phpt
index e220291..e51feb6 100644
--- a/tests/Functional/testEveryTagCrossesAWorkerBoundaryAndComesBack.phpt
+++ b/tests/Functional/testEveryTagCrossesAWorkerBoundaryAndComesBack.phpt
@@ -3,7 +3,6 @@ spawnParallel and await carry every tag of the value contract, addresses include
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testEveryTestDeclaresTheThreeRequiredIniLines.phpt b/tests/Functional/testEveryTestDeclaresTheThreeRequiredIniLines.phpt
deleted file mode 100644
index 76aa553..0000000
--- a/tests/Functional/testEveryTestDeclaresTheThreeRequiredIniLines.phpt
+++ /dev/null
@@ -1,71 +0,0 @@
---TEST--
-Every .phpt in the suite carries the three mandatory --INI-- lines
---INI--
-ffi.enable=1
-opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
---FILE--
-<?php
-
-declare(strict_types=1);
-
-// The three settings have to hold in every child process the .phpt runner spawns, and nothing but
-// the file's own --INI-- section puts them there: ffi.enable cannot be set at runtime, the JIT
-// rewrites the executor internals the engine hooks depend on, and PHPUnit's .phpt runner forces
-// display_errors=1, so an unsuppressed dependency deprecation would be prepended to the captured
-// output and break an --EXPECT-- block that has nothing to do with it.
-//
-// This test is the guard: a new .phpt that omits a line fails here rather than years later on
-// somebody else's machine. It scans the whole suite, including itself.
-$required = [
-    'ffi.enable=1',
-    'opcache.jit=off',
-    'error_reporting=E_ALL & ~E_DEPRECATED',
-];
-
-$root  = dirname(__DIR__);
-$files = new RegexIterator(
-    new RecursiveIteratorIterator(new RecursiveDirectoryIterator($root, FilesystemIterator::SKIP_DOTS)),
-    '/\.phpt$/',
-);
-
-$paths = [];
-foreach ($files as $file) {
-    $paths[] = (string) $file;
-}
-sort($paths);
-
-if ($paths === []) {
-    echo 'no .phpt files were found under ', $root, PHP_EOL;
-}
-
-$violations = 0;
-foreach ($paths as $path) {
-    $relative = substr($path, strlen($root) + 1);
-    $contents = (string) file_get_contents($path);
-
-    // The --INI-- body: everything between the section header and the next section header.
-    if (preg_match('/^--INI--\R(.*?)^--[A-Z_]+--$/ms', $contents, $matches) !== 1) {
-        echo $relative, ': has no --INI-- section', PHP_EOL;
-        ++$violations;
-
-        continue;
-    }
-
-    $declared = array_filter(array_map('trim', preg_split('/\R/', $matches[1]) ?: []));
-
-    foreach ($required as $setting) {
-        if (!in_array($setting, $declared, true)) {
-            echo $relative, ': --INI-- is missing ', $setting, PHP_EOL;
-            ++$violations;
-        }
-    }
-}
-
-echo $violations === 0
-    ? 'every .phpt declares all three required --INI-- lines'
-    : $violations . ' violation(s)';
-echo PHP_EOL;
-?>
---EXPECT--
-every .phpt declares all three required --INI-- lines
diff --git a/tests/Functional/testEveryTestDeclaresTheTwoRequiredIniLines.phpt b/tests/Functional/testEveryTestDeclaresTheTwoRequiredIniLines.phpt
new file mode 100644
index 0000000..acf98f9
--- /dev/null
+++ b/tests/Functional/testEveryTestDeclaresTheTwoRequiredIniLines.phpt
@@ -0,0 +1,83 @@
+--TEST--
+Every .phpt in the suite carries the two mandatory --INI-- lines and suppresses no diagnostics
+--INI--
+ffi.enable=1
+opcache.jit=off
+--FILE--
+<?php
+
+declare(strict_types=1);
+
+// The two settings have to hold in every child process the .phpt runner spawns, and nothing but the
+// file's own --INI-- section puts them there: ffi.enable cannot be set at runtime, and the JIT
+// rewrites the executor internals the engine hooks depend on.
+//
+// A third line, error_reporting=E_ALL & ~E_DEPRECATED, used to sit alongside them. It was there to
+// keep a *dependency's* deprecation out of the captured output back when z-engine was consumed from
+// a development branch: PHPUnit's .phpt runner forces display_errors=1, so anything raised is
+// prepended to a test's output and fails an --EXPECT-- block over noise. The stable releases this
+// package now requires raise nothing, and the suppression was hiding this package's own
+// deprecations too (see #39, an SplObjectStorage::contains() call PHP 8.5 deprecated that 12 tests
+// were exercising in silence). So the suite runs at the runner's default error_reporting and a
+// deprecation from our own code fails a test the day it appears, which is the point.
+//
+// This test is the guard on both halves: a new .phpt that omits a required line fails here, and so
+// does one that re-adds a diagnostic filter to hide something rather than fix it.
+$required = [
+    'ffi.enable=1',
+    'opcache.jit=off',
+];
+
+$root  = dirname(__DIR__);
+$files = new RegexIterator(
+    new RecursiveIteratorIterator(new RecursiveDirectoryIterator($root, FilesystemIterator::SKIP_DOTS)),
+    '/\.phpt$/',
+);
+
+$paths = [];
+foreach ($files as $file) {
+    $paths[] = (string) $file;
+}
+sort($paths);
+
+if ($paths === []) {
+    echo 'no .phpt files were found under ', $root, PHP_EOL;
+}
+
+$violations = 0;
+foreach ($paths as $path) {
+    $relative = substr($path, strlen($root) + 1);
+    $contents = (string) file_get_contents($path);
+
+    // The --INI-- body: everything between the section header and the next section header.
+    if (preg_match('/^--INI--\R(.*?)^--[A-Z_]+--$/ms', $contents, $matches) !== 1) {
+        echo $relative, ': has no --INI-- section', PHP_EOL;
+        ++$violations;
+
+        continue;
+    }
+
+    $declared = array_filter(array_map('trim', preg_split('/\R/', $matches[1]) ?: []));
+
+    foreach ($required as $setting) {
+        if (!in_array($setting, $declared, true)) {
+            echo $relative, ': --INI-- is missing ', $setting, PHP_EOL;
+            ++$violations;
+        }
+    }
+
+    foreach ($declared as $setting) {
+        if (str_starts_with($setting, 'error_reporting')) {
+            echo $relative, ': --INI-- sets ', $setting, ' — a deprecation from this package is a bug to fix, not to silence', PHP_EOL;
+            ++$violations;
+        }
+    }
+}
+
+echo $violations === 0
+    ? 'every .phpt declares both required --INI-- lines and filters no diagnostics'
+    : $violations . ' violation(s)';
+echo PHP_EOL;
+?>
+--EXPECT--
+every .phpt declares both required --INI-- lines and filters no diagnostics
diff --git a/tests/Functional/testEveryWorkerForksAtStartAndIsReachable.phpt b/tests/Functional/testEveryWorkerForksAtStartAndIsReachable.phpt
index 22bb7f0..ceb6b29 100644
--- a/tests/Functional/testEveryWorkerForksAtStartAndIsReachable.phpt
+++ b/tests/Functional/testEveryWorkerForksAtStartAndIsReachable.phpt
@@ -3,7 +3,6 @@ Every worker is forked eagerly by start() and every one of them can be reached w
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testForeachOverAChannelStopsWhenItIsClosedAndDrained.phpt b/tests/Functional/testForeachOverAChannelStopsWhenItIsClosedAndDrained.phpt
index 01d29fa..867503c 100644
--- a/tests/Functional/testForeachOverAChannelStopsWhenItIsClosedAndDrained.phpt
+++ b/tests/Functional/testForeachOverAChannelStopsWhenItIsClosedAndDrained.phpt
@@ -3,7 +3,6 @@ foreach over a channel yields until it is closed and drained
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testIdleWithAWatchedStreamBlocksInSelect.phpt b/tests/Functional/testIdleWithAWatchedStreamBlocksInSelect.phpt
index a1d73f9..e9d55c6 100644
--- a/tests/Functional/testIdleWithAWatchedStreamBlocksInSelect.phpt
+++ b/tests/Functional/testIdleWithAWatchedStreamBlocksInSelect.phpt
@@ -3,7 +3,6 @@ With a descriptor registered, the idle turn blocks in stream_select for the time
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testKillingAWorkerMidTaskFailsItsWaiter.phpt b/tests/Functional/testKillingAWorkerMidTaskFailsItsWaiter.phpt
index 22a6e9b..3e55dc6 100644
--- a/tests/Functional/testKillingAWorkerMidTaskFailsItsWaiter.phpt
+++ b/tests/Functional/testKillingAWorkerMidTaskFailsItsWaiter.phpt
@@ -3,7 +3,6 @@ SIGKILLing a worker in the middle of a task fails the parked waiter instead of h
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testMainReturningDiscardsPendingCoroutines.phpt b/tests/Functional/testMainReturningDiscardsPendingCoroutines.phpt
index ace7a4b..b6aaedd 100644
--- a/tests/Functional/testMainReturningDiscardsPendingCoroutines.phpt
+++ b/tests/Functional/testMainReturningDiscardsPendingCoroutines.phpt
@@ -3,7 +3,6 @@ When main returns, coroutines that are still pending are discarded rather than a
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testMutexReportsAReentrantLockAsADeadlock.phpt b/tests/Functional/testMutexReportsAReentrantLockAsADeadlock.phpt
index 78baa8e..a9d44b8 100644
--- a/tests/Functional/testMutexReportsAReentrantLockAsADeadlock.phpt
+++ b/tests/Functional/testMutexReportsAReentrantLockAsADeadlock.phpt
@@ -3,7 +3,6 @@ Locking a Mutex the calling coroutine already holds is reported as a deadlock
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testMutexSerializesCriticalSectionsInFifoOrder.phpt b/tests/Functional/testMutexSerializesCriticalSectionsInFifoOrder.phpt
index 55cd4a6..921d0fa 100644
--- a/tests/Functional/testMutexSerializesCriticalSectionsInFifoOrder.phpt
+++ b/tests/Functional/testMutexSerializesCriticalSectionsInFifoOrder.phpt
@@ -3,7 +3,6 @@ A Mutex serializes critical sections and hands the lock over in arrival order
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testNoShippedSourceDumpsOrHandleKeysASharedObject.phpt b/tests/Functional/testNoShippedSourceDumpsOrHandleKeysASharedObject.phpt
index 5d35a3c..5a8fb1c 100644
--- a/tests/Functional/testNoShippedSourceDumpsOrHandleKeysASharedObject.phpt
+++ b/tests/Functional/testNoShippedSourceDumpsOrHandleKeysASharedObject.phpt
@@ -3,7 +3,6 @@ Nothing in the shipped source dumps a shared object or keys one by its object-st
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testOnceBlocksLaterCallersUntilTheFirstCompletes.phpt b/tests/Functional/testOnceBlocksLaterCallersUntilTheFirstCompletes.phpt
index 935bdb5..efe6fd0 100644
--- a/tests/Functional/testOnceBlocksLaterCallersUntilTheFirstCompletes.phpt
+++ b/tests/Functional/testOnceBlocksLaterCallersUntilTheFirstCompletes.phpt
@@ -3,7 +3,6 @@ Once makes later callers wait for the initializer instead of letting them past i
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testOnceReplaysAFailedInitializerToEveryCaller.phpt b/tests/Functional/testOnceReplaysAFailedInitializerToEveryCaller.phpt
index 001aff2..c1e1865 100644
--- a/tests/Functional/testOnceReplaysAFailedInitializerToEveryCaller.phpt
+++ b/tests/Functional/testOnceReplaysAFailedInitializerToEveryCaller.phpt
@@ -3,7 +3,6 @@ A Once whose initializer threw stays spent and re-throws that failure to everyon
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testOnceRunsItsInitializerExactlyOnce.phpt b/tests/Functional/testOnceRunsItsInitializerExactlyOnce.phpt
index 3aceb9c..04f3015 100644
--- a/tests/Functional/testOnceRunsItsInitializerExactlyOnce.phpt
+++ b/tests/Functional/testOnceRunsItsInitializerExactlyOnce.phpt
@@ -3,7 +3,6 @@ Once runs its initializer exactly once and hands the same result to every caller
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testParkedReceiversAreServedInFifoOrder.phpt b/tests/Functional/testParkedReceiversAreServedInFifoOrder.phpt
index 2ca37e6..229f679 100644
--- a/tests/Functional/testParkedReceiversAreServedInFifoOrder.phpt
+++ b/tests/Functional/testParkedReceiversAreServedInFifoOrder.phpt
@@ -3,7 +3,6 @@ Parked receivers are served in the order they arrived
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testParkedSendersAreServedInFifoOrder.phpt b/tests/Functional/testParkedSendersAreServedInFifoOrder.phpt
index d337317..abd336b 100644
--- a/tests/Functional/testParkedSendersAreServedInFifoOrder.phpt
+++ b/tests/Functional/testParkedSendersAreServedInFifoOrder.phpt
@@ -3,7 +3,6 @@ Parked senders are served in the order they arrived
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testPollerRetriesAfterSignalInterruption.phpt b/tests/Functional/testPollerRetriesAfterSignalInterruption.phpt
index 1db8f4f..74ec417 100644
--- a/tests/Functional/testPollerRetriesAfterSignalInterruption.phpt
+++ b/tests/Functional/testPollerRetriesAfterSignalInterruption.phpt
@@ -3,7 +3,6 @@ A signal arriving during stream_select is retried, with the remaining timeout ra
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testPreemptedArithmeticMatchesTheUnpreemptedResult.phpt b/tests/Functional/testPreemptedArithmeticMatchesTheUnpreemptedResult.phpt
index 46754ed..bff165f 100644
--- a/tests/Functional/testPreemptedArithmeticMatchesTheUnpreemptedResult.phpt
+++ b/tests/Functional/testPreemptedArithmeticMatchesTheUnpreemptedResult.phpt
@@ -3,7 +3,6 @@ A computation cut into slices by preemption produces exactly the result it produ
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testPreemptedCoroutinesAreDrainedAtShutdown.phpt b/tests/Functional/testPreemptedCoroutinesAreDrainedAtShutdown.phpt
index ced67c6..94363e7 100644
--- a/tests/Functional/testPreemptedCoroutinesAreDrainedAtShutdown.phpt
+++ b/tests/Functional/testPreemptedCoroutinesAreDrainedAtShutdown.phpt
@@ -3,7 +3,6 @@ A coroutine still parked in the preemption callback is drained out of it, never
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testPreemptionIsOffByDefault.phpt b/tests/Functional/testPreemptionIsOffByDefault.phpt
index 4428e10..6ed911f 100644
--- a/tests/Functional/testPreemptionIsOffByDefault.phpt
+++ b/tests/Functional/testPreemptionIsOffByDefault.phpt
@@ -3,7 +3,6 @@ A default runtime is fully cooperative: no preemptor, no timer, and a call-free
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testRendezvousChannelHandsOffBetweenRealCoroutines.phpt b/tests/Functional/testRendezvousChannelHandsOffBetweenRealCoroutines.phpt
index 1c62a17..3751a11 100644
--- a/tests/Functional/testRendezvousChannelHandsOffBetweenRealCoroutines.phpt
+++ b/tests/Functional/testRendezvousChannelHandsOffBetweenRealCoroutines.phpt
@@ -3,7 +3,6 @@ A rendezvous channel hands values between coroutines driven by the real schedule
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testRendezvousHandsTheValueOverDirectly.phpt b/tests/Functional/testRendezvousHandsTheValueOverDirectly.phpt
index 3367544..ac085d9 100644
--- a/tests/Functional/testRendezvousHandsTheValueOverDirectly.phpt
+++ b/tests/Functional/testRendezvousHandsTheValueOverDirectly.phpt
@@ -3,7 +3,6 @@ A rendezvous hands the value straight to a waiting receiver, without the sender
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testRendezvousSendParksUntilAReceiverArrives.phpt b/tests/Functional/testRendezvousSendParksUntilAReceiverArrives.phpt
index 9da5f37..7f23e48 100644
--- a/tests/Functional/testRendezvousSendParksUntilAReceiverArrives.phpt
+++ b/tests/Functional/testRendezvousSendParksUntilAReceiverArrives.phpt
@@ -3,7 +3,6 @@ A send on a rendezvous channel parks until a receiver arrives
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testResultsThatNeedTheArenaAreRefusedByName.phpt b/tests/Functional/testResultsThatNeedTheArenaAreRefusedByName.phpt
index 71a672e..2fcd1d8 100644
--- a/tests/Functional/testResultsThatNeedTheArenaAreRefusedByName.phpt
+++ b/tests/Functional/testResultsThatNeedTheArenaAreRefusedByName.phpt
@@ -3,7 +3,6 @@ Scalar results cross a worker boundary today; string, array and object results n
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSelectParksAndIsWokenByARealTimer.phpt b/tests/Functional/testSelectParksAndIsWokenByARealTimer.phpt
index 9f0cfd5..383489d 100644
--- a/tests/Functional/testSelectParksAndIsWokenByARealTimer.phpt
+++ b/tests/Functional/testSelectParksAndIsWokenByARealTimer.phpt
@@ -3,7 +3,6 @@ A select parks on the real scheduler and is woken by a send from a sleeping coro
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSelectParksOnEveryCaseUntilOneBecomesReady.phpt b/tests/Functional/testSelectParksOnEveryCaseUntilOneBecomesReady.phpt
index 286f4e0..172285f 100644
--- a/tests/Functional/testSelectParksOnEveryCaseUntilOneBecomesReady.phpt
+++ b/tests/Functional/testSelectParksOnEveryCaseUntilOneBecomesReady.phpt
@@ -3,7 +3,6 @@ A select with nothing ready parks on every case, and any one of them can wake it
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSelectSendCaseCompletesWhenAReceiverArrives.phpt b/tests/Functional/testSelectSendCaseCompletesWhenAReceiverArrives.phpt
index da7dd83..eaea8a6 100644
--- a/tests/Functional/testSelectSendCaseCompletesWhenAReceiverArrives.phpt
+++ b/tests/Functional/testSelectSendCaseCompletesWhenAReceiverArrives.phpt
@@ -3,7 +3,6 @@ A parked select send case completes when a receiver takes its value
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSelectSendCaseThrowsWhenItsChannelClosesWhileParked.phpt b/tests/Functional/testSelectSendCaseThrowsWhenItsChannelClosesWhileParked.phpt
index 91a2e6c..30ca10d 100644
--- a/tests/Functional/testSelectSendCaseThrowsWhenItsChannelClosesWhileParked.phpt
+++ b/tests/Functional/testSelectSendCaseThrowsWhenItsChannelClosesWhileParked.phpt
@@ -3,7 +3,6 @@ A parked select send case throws when its channel is closed underneath it
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSelectSpreadsItsChoiceAcrossAlwaysReadyCases.phpt b/tests/Functional/testSelectSpreadsItsChoiceAcrossAlwaysReadyCases.phpt
index eb30c0c..a15b8a1 100644
--- a/tests/Functional/testSelectSpreadsItsChoiceAcrossAlwaysReadyCases.phpt
+++ b/tests/Functional/testSelectSpreadsItsChoiceAcrossAlwaysReadyCases.phpt
@@ -3,7 +3,6 @@ A select in a loop spreads its choice across cases that are always ready
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSelectTakesAReadyCaseWithoutParking.phpt b/tests/Functional/testSelectTakesAReadyCaseWithoutParking.phpt
index 9477e1f..1a6cc14 100644
--- a/tests/Functional/testSelectTakesAReadyCaseWithoutParking.phpt
+++ b/tests/Functional/testSelectTakesAReadyCaseWithoutParking.phpt
@@ -3,7 +3,6 @@ A select takes the case that is already ready instead of parking
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSelectUnlinksTheWaitersOfItsLosingCases.phpt b/tests/Functional/testSelectUnlinksTheWaitersOfItsLosingCases.phpt
index 3df0a3e..2e013a0 100644
--- a/tests/Functional/testSelectUnlinksTheWaitersOfItsLosingCases.phpt
+++ b/tests/Functional/testSelectUnlinksTheWaitersOfItsLosingCases.phpt
@@ -3,7 +3,6 @@ A resolved select leaves no waiter behind on the cases that lost
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSelectWithADefaultNeverParks.phpt b/tests/Functional/testSelectWithADefaultNeverParks.phpt
index 2c000a7..acc06b4 100644
--- a/tests/Functional/testSelectWithADefaultNeverParks.phpt
+++ b/tests/Functional/testSelectWithADefaultNeverParks.phpt
@@ -3,7 +3,6 @@ A select with a default takes the default instead of parking when nothing is rea
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSendOnAClosedChannelThrows.phpt b/tests/Functional/testSendOnAClosedChannelThrows.phpt
index 47e7874..de9c7b9 100644
--- a/tests/Functional/testSendOnAClosedChannelThrows.phpt
+++ b/tests/Functional/testSendOnAClosedChannelThrows.phpt
@@ -3,7 +3,6 @@ Sending to a closed channel throws
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSleepingProgramBurnsNoCpu.phpt b/tests/Functional/testSleepingProgramBurnsNoCpu.phpt
index eff497f..be31dce 100644
--- a/tests/Functional/testSleepingProgramBurnsNoCpu.phpt
+++ b/tests/Functional/testSleepingProgramBurnsNoCpu.phpt
@@ -3,7 +3,6 @@ A program that is only sleeping idles on its timer deadline instead of spinning
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSleepsWakeInDeadlineOrder.phpt b/tests/Functional/testSleepsWakeInDeadlineOrder.phpt
index e649c85..e35262d 100644
--- a/tests/Functional/testSleepsWakeInDeadlineOrder.phpt
+++ b/tests/Functional/testSleepsWakeInDeadlineOrder.phpt
@@ -3,7 +3,6 @@ Sleeping coroutines wake in deadline order, not in the order they went to sleep
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testSpawnedCoroutinesRunInFifoOrder.phpt b/tests/Functional/testSpawnedCoroutinesRunInFifoOrder.phpt
index 419fff8..86b1d5f 100644
--- a/tests/Functional/testSpawnedCoroutinesRunInFifoOrder.phpt
+++ b/tests/Functional/testSpawnedCoroutinesRunInFifoOrder.phpt
@@ -3,7 +3,6 @@ Spawned coroutines run in the order they were spawned, after the coroutine that
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTaggedRecordRoundTripsEveryTag.phpt b/tests/Functional/testTaggedRecordRoundTripsEveryTag.phpt
index 0f8bba3..d0a1c1c 100644
--- a/tests/Functional/testTaggedRecordRoundTripsEveryTag.phpt
+++ b/tests/Functional/testTaggedRecordRoundTripsEveryTag.phpt
@@ -3,7 +3,6 @@ Every tag round-trips through the 16-byte record encoding
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTasksAreDistributedRoundRobin.phpt b/tests/Functional/testTasksAreDistributedRoundRobin.phpt
index a89b597..4a5f186 100644
--- a/tests/Functional/testTasksAreDistributedRoundRobin.phpt
+++ b/tests/Functional/testTasksAreDistributedRoundRobin.phpt
@@ -3,7 +3,6 @@ Unpinned tasks go to the workers in turn, wrapping around the pool
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTheControlSocketCarriesOnlyFixedSizeRecords.phpt b/tests/Functional/testTheControlSocketCarriesOnlyFixedSizeRecords.phpt
index 7f1bd46..1fccd73 100644
--- a/tests/Functional/testTheControlSocketCarriesOnlyFixedSizeRecords.phpt
+++ b/tests/Functional/testTheControlSocketCarriesOnlyFixedSizeRecords.phpt
@@ -3,7 +3,6 @@ A real worker answers over the raw socket in whole 16-byte records and nothing e
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTheShippedSourceNeverEncodesAValue.phpt b/tests/Functional/testTheShippedSourceNeverEncodesAValue.phpt
index 05b4661..a423970 100644
--- a/tests/Functional/testTheShippedSourceNeverEncodesAValue.phpt
+++ b/tests/Functional/testTheShippedSourceNeverEncodesAValue.phpt
@@ -3,7 +3,6 @@ No shipped source file calls serialize, igbinary, json_encode or var_export on a
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTheShutdownLadderClimbsFromRecordToSigkill.phpt b/tests/Functional/testTheShutdownLadderClimbsFromRecordToSigkill.phpt
index 2e9ad6e..c9151f6 100644
--- a/tests/Functional/testTheShutdownLadderClimbsFromRecordToSigkill.phpt
+++ b/tests/Functional/testTheShutdownLadderClimbsFromRecordToSigkill.phpt
@@ -3,7 +3,6 @@ Shutdown asks first, escalates to SIGTERM, and reaches SIGKILL for a worker that
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTheSliceTimerIsArmedAgainAfterASignalCutAPollShort.phpt b/tests/Functional/testTheSliceTimerIsArmedAgainAfterASignalCutAPollShort.phpt
index 7dacb50..17b482f 100644
--- a/tests/Functional/testTheSliceTimerIsArmedAgainAfterASignalCutAPollShort.phpt
+++ b/tests/Functional/testTheSliceTimerIsArmedAgainAfterASignalCutAPollShort.phpt
@@ -3,7 +3,6 @@ A signal that cuts an idle poll short still leaves slicing armed for whatever ru
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTheTaskSurfaceCarriesNoConfigurationOrLifecycle.phpt b/tests/Functional/testTheTaskSurfaceCarriesNoConfigurationOrLifecycle.phpt
index 7494e87..2b9af8d 100644
--- a/tests/Functional/testTheTaskSurfaceCarriesNoConfigurationOrLifecycle.phpt
+++ b/tests/Functional/testTheTaskSurfaceCarriesNoConfigurationOrLifecycle.phpt
@@ -3,7 +3,6 @@ The type a task is handed carries no configuration or lifecycle method
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTheValueContractMatchesTheSubstrateNumerically.phpt b/tests/Functional/testTheValueContractMatchesTheSubstrateNumerically.phpt
index 2bf4981..198e3e2 100644
--- a/tests/Functional/testTheValueContractMatchesTheSubstrateNumerically.phpt
+++ b/tests/Functional/testTheValueContractMatchesTheSubstrateNumerically.phpt
@@ -3,7 +3,6 @@ The tag table and the layout version are checked against the substrate by number
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTheWakePipeIsDrainedSoThePollerDoesNotSpin.phpt b/tests/Functional/testTheWakePipeIsDrainedSoThePollerDoesNotSpin.phpt
index 42bfb40..f71fefe 100644
--- a/tests/Functional/testTheWakePipeIsDrainedSoThePollerDoesNotSpin.phpt
+++ b/tests/Functional/testTheWakePipeIsDrainedSoThePollerDoesNotSpin.phpt
@@ -3,7 +3,6 @@ A bounded number of cross-process sends costs a bounded number of poller wakeups
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTimerAfterFiresOnItsDeadline.phpt b/tests/Functional/testTimerAfterFiresOnItsDeadline.phpt
index 0a1048f..6e95538 100644
--- a/tests/Functional/testTimerAfterFiresOnItsDeadline.phpt
+++ b/tests/Functional/testTimerAfterFiresOnItsDeadline.phpt
@@ -3,7 +3,6 @@ Timer::after runs a callback on its deadline, earliest first, and a cancelled ti
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTwoCoroutinesOfOneProcessRendezvousOnASharedChannel.phpt b/tests/Functional/testTwoCoroutinesOfOneProcessRendezvousOnASharedChannel.phpt
index 856329f..1b5bbbc 100644
--- a/tests/Functional/testTwoCoroutinesOfOneProcessRendezvousOnASharedChannel.phpt
+++ b/tests/Functional/testTwoCoroutinesOfOneProcessRendezvousOnASharedChannel.phpt
@@ -3,7 +3,6 @@ A capacity-0 shared channel hands values between two coroutines of the same proc
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTwoSharedRootsOfOneClassAreDistinct.phpt b/tests/Functional/testTwoSharedRootsOfOneClassAreDistinct.phpt
index b3a73b7..3785914 100644
--- a/tests/Functional/testTwoSharedRootsOfOneClassAreDistinct.phpt
+++ b/tests/Functional/testTwoSharedRootsOfOneClassAreDistinct.phpt
@@ -3,7 +3,6 @@ Two shared roots of one class are two graphs, each mutated on its own identity
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTwoStreamsWakeIndependently.phpt b/tests/Functional/testTwoStreamsWakeIndependently.phpt
index 5763146..f28cddf 100644
--- a/tests/Functional/testTwoStreamsWakeIndependently.phpt
+++ b/tests/Functional/testTwoStreamsWakeIndependently.phpt
@@ -3,7 +3,6 @@ Coroutines parked on different descriptors wake independently, in readiness orde
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testTwoTasksOfOneClassAreInFlightAtOnce.phpt b/tests/Functional/testTwoTasksOfOneClassAreInFlightAtOnce.phpt
index e53dd9e..dcd6fd7 100644
--- a/tests/Functional/testTwoTasksOfOneClassAreInFlightAtOnce.phpt
+++ b/tests/Functional/testTwoTasksOfOneClassAreInFlightAtOnce.phpt
@@ -3,7 +3,6 @@ Two tasks of one class are in flight at once, and each graph survives the other
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testUncaughtThrowableSurfacesOutOfRun.phpt b/tests/Functional/testUncaughtThrowableSurfacesOutOfRun.phpt
index 43028cc..9bc6293 100644
--- a/tests/Functional/testUncaughtThrowableSurfacesOutOfRun.phpt
+++ b/tests/Functional/testUncaughtThrowableSurfacesOutOfRun.phpt
@@ -3,7 +3,6 @@ An uncaught throwable in any coroutine is a panic that terminates the run and le
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testUnparkIsIdempotentAndFirstCallerWins.phpt b/tests/Functional/testUnparkIsIdempotentAndFirstCallerWins.phpt
index 2e10476..94dce26 100644
--- a/tests/Functional/testUnparkIsIdempotentAndFirstCallerWins.phpt
+++ b/tests/Functional/testUnparkIsIdempotentAndFirstCallerWins.phpt
@@ -3,7 +3,6 @@ Only the unpark that performed the transition returns true; later ones are harml
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testUnshareableValuesAreRefusedWithTheirRemedy.phpt b/tests/Functional/testUnshareableValuesAreRefusedWithTheirRemedy.phpt
index 7bc8554..a2aa248 100644
--- a/tests/Functional/testUnshareableValuesAreRefusedWithTheirRemedy.phpt
+++ b/tests/Functional/testUnshareableValuesAreRefusedWithTheirRemedy.phpt
@@ -3,7 +3,6 @@ Every value that cannot cross a worker boundary is refused with the remedy named
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testWaitGroupJoinsRealSleepingCoroutines.phpt b/tests/Functional/testWaitGroupJoinsRealSleepingCoroutines.phpt
index c4d3bf4..38cd05d 100644
--- a/tests/Functional/testWaitGroupJoinsRealSleepingCoroutines.phpt
+++ b/tests/Functional/testWaitGroupJoinsRealSleepingCoroutines.phpt
@@ -3,7 +3,6 @@ A WaitGroup joins coroutines that sleep on the real timer heap
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testWaitGroupRejectsANegativeCounter.phpt b/tests/Functional/testWaitGroupRejectsANegativeCounter.phpt
index 394a4fc..64f252d 100644
--- a/tests/Functional/testWaitGroupRejectsANegativeCounter.phpt
+++ b/tests/Functional/testWaitGroupRejectsANegativeCounter.phpt
@@ -3,7 +3,6 @@ A WaitGroup counter that would go negative throws instead of clamping
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testWaitGroupWaitsForEveryUnitOfWork.phpt b/tests/Functional/testWaitGroupWaitsForEveryUnitOfWork.phpt
index f6e1aa8..6d22cf3 100644
--- a/tests/Functional/testWaitGroupWaitsForEveryUnitOfWork.phpt
+++ b/tests/Functional/testWaitGroupWaitsForEveryUnitOfWork.phpt
@@ -3,7 +3,6 @@ A WaitGroup releases its waiters only when the counter reaches zero
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testWatchReadableWakesAnotherCoroutine.phpt b/tests/Functional/testWatchReadableWakesAnotherCoroutine.phpt
index bec6b67..be98152 100644
--- a/tests/Functional/testWatchReadableWakesAnotherCoroutine.phpt
+++ b/tests/Functional/testWatchReadableWakesAnotherCoroutine.phpt
@@ -3,7 +3,6 @@ A readiness watch owns no coroutine: it fires a callback that wakes somebody els
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Functional/testYieldGoesToTheTailOfTheRunQueue.phpt b/tests/Functional/testYieldGoesToTheTailOfTheRunQueue.phpt
index bbc00b5..26b23de 100644
--- a/tests/Functional/testYieldGoesToTheTailOfTheRunQueue.phpt
+++ b/tests/Functional/testYieldGoesToTheTailOfTheRunQueue.phpt
@@ -3,7 +3,6 @@ A yielding coroutine goes to the tail of the run queue, so peers round-robin fai
 --INI--
 ffi.enable=1
 opcache.jit=off
-error_reporting=E_ALL & ~E_DEPRECATED
 --FILE--
 <?php
 
diff --git a/tests/Support/childProcess.php b/tests/Support/childProcess.php
index 266ed21..67c5bf9 100644
--- a/tests/Support/childProcess.php
+++ b/tests/Support/childProcess.php
@@ -26,9 +26,9 @@
 /**
  * Run $script in its own PHP process and wait for it, but never longer than $timeout.
  *
- * The child gets the same three INI settings every `.phpt` in this suite declares: they are not
- * inherited from the parent's command line, and a deprecation from a dependency would otherwise
- * land in the output the test is asserting on.
+ * The child gets the same two INI settings every `.phpt` in this suite declares: they are not
+ * inherited from the parent's command line. Nothing filters diagnostics here either — a deprecation
+ * raised inside the child is something a test should show, not swallow (see #39).
  *
  * @param  string $script  Absolute path of the PHP file to run.
  * @param  float  $timeout Seconds to wait before killing it.
@@ -44,7 +44,6 @@ function superviseChildProcess(string $script, float $timeout): array
         PHP_BINARY,
         '-d', 'ffi.enable=1',
         '-d', 'opcache.jit=off',
-        '-d', 'error_reporting=E_ALL & ~E_DEPRECATED',
         $script,
     ];