diff --git a/R/metadata.R b/R/metadata.R
index 08a0812..150ad17 100644
--- a/R/metadata.R
+++ b/R/metadata.R
@@ -7,7 +7,7 @@ create_meta <- function(...) {
 }
 
 #' @export
-create_meta.list <- function(metadata) {
+create_meta.list <- function(metadata, ...) {
   if(is.null(names(metadata)) || any(nchar(names(metadata)) == 0)) {
     stop("All fields of metadata objects must be named!")
   }
@@ -50,7 +50,7 @@ as.tsmeta <- function(meta, ...) {
 }
 
 #' @export
-as.tsmeta.data.table <- function(meta) {
+as.tsmeta.data.table <- function(meta, ...) {
   if(nrow(meta) > 0) {
     out <- apply(meta[, -"ts_key", with = FALSE], 1, as.list)
     names(out) <- meta$ts_key
@@ -63,7 +63,7 @@ as.tsmeta.data.table <- function(meta) {
 }
 
 #' @export
-as.tsmeta.list <- function(meta, check_depth = TRUE) {
+as.tsmeta.list <- function(meta, check_depth = TRUE, ...) {
   if(check_depth && !has_depth_2(meta) && length(meta) > 0) {
     stop("A meta list must have exactly depth 2!")
   }
@@ -76,13 +76,15 @@ as.tsmeta.list <- function(meta, check_depth = TRUE) {
 }
 
 #' @export
-as.tsmeta.data.frame <- function(meta) {
+as.tsmeta.data.frame <- function(meta, ...) {
   as.tsmeta(as.data.table(meta))
 }
 
 
 #' @export
-as.tsmeta.tsmeta <- identity
+as.tsmeta.tsmeta <- function(meta, ...) {
+  meta
+}
 
 
 # printers ----------------------------------------------------------------
diff --git a/R/utils.R b/R/utils.R
index fefbc09..46a6222 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -11,7 +11,7 @@
 #' @param as.string logical If as.string is TRUE the string representation of the
 #' Date is returned, otherwise a Date object.
 #' @examples
-#' index_to_date(2020.25)
+#' \dontrun{index_to_date(2020.25)}
 index_to_date <- function (x, as.string = FALSE)
 {
   if(inherits(x, "Date")) {
@@ -45,7 +45,7 @@ index_to_date <- function (x, as.string = FALSE)
 #'
 #' @return The numeric representation of the date that can be used with ts
 #' @examples
-#' date_to_index("2020-07-01")
+#' \dontrun{date_to_index("2020-07-01")}
 date_to_index <- function(x) {
   x <- as.character(x)
   components <- as.numeric(unlist(strsplit(x, "-")))
diff --git a/tests/testthat/test_db_create_connection.R b/tests/testthat/test_db_create_connection.R
index caba7b4..40bdb92 100644
--- a/tests/testthat/test_db_create_connection.R
+++ b/tests/testthat/test_db_create_connection.R
@@ -94,6 +94,8 @@ test_that("password from env, missing", {
 })
 
 test_that("asking for password", {
+  skip_if_not(require(rstudioapi) && rstudioapi::isAvailable())
+
   fake_dbConnect = mock()
 
   with_mock(
@@ -122,7 +124,7 @@ test_that("getting password from file", {
     Sys.info = mock(list(user = "bobby")),
     file.exists = mock(TRUE),
     dbConnect = fake_dbConnect,
-    readPasswordFile = fake_readlines,
+    "timeseriesdb:::readPasswordFile" = fake_readlines,
     {
       db_connection_create("mydb",
                            passwd = "my/password/file",
@@ -146,7 +148,7 @@ test_that("password from file, line no too big", {
 
   with_mock(
     file.exists = mock(TRUE),
-    readPasswordFile = fake_readlines,
+    "timeseriesdb:::readPasswordFile" = fake_readlines,
     {
       expect_error(
         db_connection_create("mydb",
diff --git a/tests/testthat/test_db_with_helpers.R b/tests/testthat/test_db_with_helpers.R
index 7f59aac..55449d2 100644
--- a/tests/testthat/test_db_with_helpers.R
+++ b/tests/testthat/test_db_with_helpers.R
@@ -6,7 +6,7 @@ test_that("It creates a temp table and hands it over to admin", {
 
   with_mock(
     dbWriteTable = fake_dbWriteTable,
-    db_grant_to_admin = fake_db_grant_to_admin,
+    "timeseriesdb:::db_grant_to_admin" = fake_db_grant_to_admin,
     dbRemoveTable = mock(),
     {
       db_with_temp_table("con", "temp", "content", "field.types", {1+1}, "schema")
@@ -37,7 +37,7 @@ test_that("it evaluates the code", {
   fake_code = mock()
   with_mock(
     dbWriteTable = mock(),
-    db_grant_to_admin = mock(),
+    "timeseriesdb:::db_grant_to_admin" = mock(),
     dbRemoveTable = mock(),
     {
       db_with_temp_table("con", "temp", "content", "field.types", fake_code(), "schema")
@@ -51,7 +51,7 @@ test_that("it removes the table even in error case", {
 
   with_mock(
     dbWriteTable = mock(),
-    db_grant_to_admin = mock(),
+    "timeseriesdb:::db_grant_to_admin" = mock(),
     dbRemoveTable = fake_remove,
     {
       capture_error(db_with_temp_table("con", "temp", "content", "field.types", stop("oh noes"), "schema"))
@@ -67,7 +67,7 @@ context("db_with_tmp_read")
 test_that("It warns when using regex with multiple ts_keys", {
   with_mock(
     dbWriteTable = mock(),
-    db_grant_to_admin = mock(),
+    "timeseriesdb:::db_grant_to_admin" = mock(),
     dbRemoveTable = mock(),
     dbExecute = mock(),
     dbQuoteIdentifier = mock(),
@@ -85,7 +85,7 @@ test_that("It only uses the first element of ts_keys when regex == TRUE", {
   db_quote_literal_mock = mock()
   with_mock(
     dbWriteTable = mock(),
-    db_grant_to_admin = mock(),
+    "timeseriesdb:::db_grant_to_admin" = mock(),
     dbRemoveTable = mock(),
     dbExecute = mock(),
     dbQuoteIdentifier = mock(),
@@ -103,7 +103,7 @@ test_that("It evaluates the code", {
 
   with_mock(
     dbWriteTable = mock(),
-    db_grant_to_admin = mock(),
+    "timeseriesdb:::db_grant_to_admin" = mock(),
     dbRemoveTable = mock(),
     dbExecute = mock(),
     dbQuoteIdentifier = mock(),
@@ -121,7 +121,7 @@ test_that("It removes the temp table in error case", {
 
   with_mock(
     dbWriteTable = mock(),
-    db_grant_to_admin = mock(),
+    "timeseriesdb:::db_grant_to_admin" = mock(),
     dbRemoveTable = fake_dbRemoveTable,
     dbExecute = mock(),
     dbQuoteIdentifier = mock(),
@@ -144,7 +144,7 @@ test_with_fresh_db(con_admin, "temp_ts_read gets cleaned up in failure case", {
   boom_bot <- mock(stop("Kablammy!"))
 
   with_mock(
-    get_tsl_from_res = boom_bot,
+    "timeseriesdb:::get_tsl_from_res" = boom_bot,
     {
       e <- capture_error(db_ts_read(con_admin, "rts1", schema = "tsdb_test"))
 
diff --git a/tests/testthat/test_json_to_ts.R b/tests/testthat/test_json_to_ts.R
index 662d51a..01a7097 100644
--- a/tests/testthat/test_json_to_ts.R
+++ b/tests/testthat/test_json_to_ts.R
@@ -28,7 +28,7 @@ mock_date_to_index <- mock(2019)
 test_that("it converts a regular json to ts", {
   # Is this too pedantic?
   with_mock(
-    date_to_index = mock_date_to_index,
+    "timeseriesdb:::date_to_index" = mock_date_to_index,
     {
       x <- json_to_ts(regular_json)
       expect_is(x, "ts")
diff --git a/tests/testthat/test_metadata.R b/tests/testthat/test_metadata.R
index a7d77c8..ab5076d 100644
--- a/tests/testthat/test_metadata.R
+++ b/tests/testthat/test_metadata.R
@@ -147,7 +147,7 @@ test_that("as.tsmeta.data.table skips depth check", {
   fake_as.tsmeta.list <- mock()
 
   with_mock(
-    as.tsmeta.list = fake_as.tsmeta.list,
+    "timeseriesdb:::as.tsmeta.list" = fake_as.tsmeta.list,
     {
       as.tsmeta(as.data.table(meta_df()))
     }
diff --git a/tests/testthat/test_read_metadata.R b/tests/testthat/test_read_metadata.R
index b7c4f4d..a6bfc9b 100644
--- a/tests/testthat/test_read_metadata.R
+++ b/tests/testthat/test_read_metadata.R
@@ -14,8 +14,8 @@ test_that("is passes correct args to db_call_function unlocalized", {
   fake_db_with_tmp_read <- function(con, keys, regex, code, schema){force(code)}
 
   with_mock(
-    db_call_function = fake_db_call_function,
-    db_with_tmp_read = fake_db_with_tmp_read,
+    "timeseriesdb:::db_call_function" = fake_db_call_function,
+    "timeseriesdb:::db_with_tmp_read" = fake_db_with_tmp_read,
     {
       db_metadata_read("con", "vts1", valid_on = "2020-01-01", schema = "schema")
 
@@ -38,8 +38,8 @@ test_that("is passes correct args to db_call_function localized", {
   fake_db_with_tmp_read <- function(con, keys, regex, code, schema){force(code)}
 
   with_mock(
-    db_with_tmp_read = fake_db_with_tmp_read,
-    db_call_function = fake_db_call_function,
+    "timeseriesdb:::db_with_tmp_read" = fake_db_with_tmp_read,
+    "timeseriesdb:::db_call_function" = fake_db_call_function,
     {
       db_metadata_read("con", "vts1", valid_on = "2020-01-01", schema = "schema", locale = "de")
 
diff --git a/tests/testthat/test_release_calendar.R b/tests/testthat/test_release_calendar.R
index f440746..b656b82 100644
--- a/tests/testthat/test_release_calendar.R
+++ b/tests/testthat/test_release_calendar.R
@@ -20,9 +20,9 @@ test_that("defaults", {
                                      schema){force(code)}
 
   with_mock(
-    db_call_function = fake_db_call_function,
+    "timeseriesdb:::db_call_function" = fake_db_call_function,
     dbWriteTable = mock(),
-    db_with_temp_table = fake_db_with_tmp_table,
+    "timeseriesdb:::db_with_temp_table" = fake_db_with_tmp_table,
     {
       db_release_create("con",
                         "a_release",
diff --git a/tests/testthat/test_store_metadata.R b/tests/testthat/test_store_metadata.R
index c4d4af5..0562bda 100644
--- a/tests/testthat/test_store_metadata.R
+++ b/tests/testthat/test_store_metadata.R
@@ -49,11 +49,11 @@ test_that("is passes correct args to db_call_function unlocalized", {
   fake_db_call_function = mock()
 
   with_mock(
-    db_with_temp_table = function(con, name, content, field.types, code, schema){eval(code)},
-    toJSON = mock("json"),
-    fromJSON = mock(list(status = "ok")),
+    "timeseriesdb:::db_with_temp_table" = function(con, name, content, field.types, code, schema){eval(code)},
+    "jsonlite::toJSON" = mock("json"),
+    "jsonlite::fromJSON" = mock(list(status = "ok")),
     dbExecute = mock(),
-    db_call_function = fake_db_call_function,
+    "timeseriesdb:::db_call_function" = fake_db_call_function,
     {
       db_metadata_store("con",
                            as.tsmeta.list(
@@ -334,11 +334,11 @@ test_that("is passes correct args to db_call_function localized", {
   fake_db_call_function = mock()
 
   with_mock(
-    db_with_temp_table = function(con, name, content, field.types, code, schema){eval(code)},
-    toJSON = mock("json"),
-    fromJSON = mock(list(status = "ok")),
+    "timeseriesdb:::db_with_temp_table" = function(con, name, content, field.types, code, schema){eval(code)},
+    "jsonlite::toJSON" = mock("json"),
+    "jsonlite::fromJSON" = mock(list(status = "ok")),
     dbExecute = mock(),
-    db_call_function = fake_db_call_function,
+    "timeseriesdb:::db_call_function" = fake_db_call_function,
     {
       db_metadata_store("con",
                            as.tsmeta.list(