[codex] Add Hilt UI smoke test tooling

sphinx/application/sphinx/build.gradle

@@ -18,7 +18,7 @@ android {
         versionCode VERSION_CODE.toInteger()
         versionName VERSION_NAME
 
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "chat.sphinx.HiltTestRunner"
         testInstrumentationRunnerArguments disableAnalytics: 'true'
     }
 
@@ -143,6 +143,8 @@ dependencies {
     androidTestImplementation testDeps.androidx.core
     androidTestImplementation testDeps.androidx.espresso
     androidTestImplementation testDeps.androidx.junit
+    androidTestImplementation testDeps.google.hilt
+    kaptAndroidTest kaptDeps.google.hilt
 }
 
 /**

sphinx/application/sphinx/src/androidTest/java/chat/sphinx/HiltTestRunner.kt

@@ -0,0 +1,16 @@
+package chat.sphinx
+
+import android.app.Application
+import android.content.Context
+import androidx.test.runner.AndroidJUnitRunner
+import dagger.hilt.android.testing.HiltTestApplication
+
+class HiltTestRunner : AndroidJUnitRunner() {
+    override fun newApplication(
+        cl: ClassLoader,
+        className: String,
+        context: Context
+    ): Application {
+        return super.newApplication(cl, HiltTestApplication::class.java.name, context)
+    }
+}

sphinx/application/sphinx/src/androidTest/java/chat/sphinx/MainActivitySmokeTest.kt

@@ -0,0 +1,36 @@
+package chat.sphinx
+
+import androidx.test.core.app.ActivityScenario
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.assertion.ViewAssertions.matches
+import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import chat.sphinx.activitymain.MainActivity
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@HiltAndroidTest
+@RunWith(AndroidJUnit4::class)
+class MainActivitySmokeTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Before
+    fun setUp() {
+        hiltRule.inject()
+    }
+
+    @Test
+    fun launchMainActivityShowsPrimaryNavigationHost() {
+        ActivityScenario.launch(MainActivity::class.java).use {
+            onView(withId(R.id.layout_motion_main)).check(matches(isDisplayed()))
+            onView(withId(R.id.nav_host_fragment_primary)).check(matches(isDisplayed()))
+        }
+    }
+}