fix questionnaire composable integration test

app/src/androidTest/kotlin/edu/stanford/bdh/engagehf/questionnaire/QuestionnaireTest.kt

@@ -1,40 +1,32 @@
 package edu.stanford.bdh.engagehf.questionnaire
 
-import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.test.junit4.createAndroidComposeRule
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
 import edu.stanford.bdh.engagehf.questionnaire.composables.QuestionnaireTestComposable
 import edu.stanford.bdh.engagehf.questionnaire.simulators.QuestionnaireTestSimulator
-import org.junit.Before
+import edu.stanford.spezi.core.design.component.ComposeContentActivity
 import org.junit.Rule
 import org.junit.Test
 
+@HiltAndroidTest
 class QuestionnaireTest {
 
-    @get: Rule
-    private val composeRule = createComposeRule()
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
 
-    @Before
-    fun init() {
-        try {
-            composeRule.setContent {
-                QuestionnaireTestComposable()
-            }
-        } catch (error: Throwable) {
-            // TODO: I currently do not know how to fix this
-            //  and how to set the view up to work in a test environment
-            //  - help much appreciated!
-            println("Error occurred: $error")
-        }
-    }
+    @get:Rule
+    val composeTestRule = createAndroidComposeRule<ComposeContentActivity>()
 
     @Test
-    fun testQuestionnaireComposable() {
-        // TODO: This should actually contain logic, but is skipped for now
+    fun testQuestionnaireComposableDisplay() {
+        composeTestRule.activity.setScreen { QuestionnaireTestComposable() }
         questionnaireComposable {
-            println("Empty test")
+            assertIsDisplayed()
         }
     }
 
     private fun questionnaireComposable(block: QuestionnaireTestSimulator.() -> Unit) {
-        QuestionnaireTestSimulator(composeRule).apply { block() }
+        QuestionnaireTestSimulator(composeTestRule).apply { block() }
     }
 }

app/src/androidTest/kotlin/edu/stanford/bdh/engagehf/questionnaire/simulators/QuestionnaireTestSimulator.kt

@@ -1,7 +1,17 @@
 package edu.stanford.bdh.engagehf.questionnaire.simulators
 
+import androidx.compose.ui.test.assertIsDisplayed
 import androidx.compose.ui.test.junit4.ComposeTestRule
+import edu.stanford.bdh.engagehf.questionnaire.spezi.QuestionnaireComposableTestIdentifiers
+import edu.stanford.spezi.core.testing.onNodeWithIdentifier
 
-data class QuestionnaireTestSimulator(
-    val composeTestRule: ComposeTestRule,
-)
+class QuestionnaireTestSimulator(
+    composeTestRule: ComposeTestRule,
+) {
+    private val root =
+        composeTestRule.onNodeWithIdentifier(QuestionnaireComposableTestIdentifiers.ROOT)
+
+    fun assertIsDisplayed() {
+        root.assertIsDisplayed()
+    }
+}

app/src/main/kotlin/edu/stanford/bdh/engagehf/questionnaire/spezi/QuestionnaireComposable.kt

@@ -16,9 +16,7 @@ import androidx.fragment.compose.rememberFragmentState
 import ca.uhn.fhir.context.FhirContext
 import com.google.android.fhir.datacapture.QuestionnaireFragment
 import edu.stanford.spezi.core.design.component.StringResource
-import edu.stanford.spezi.core.design.component.StringResource.Companion.invoke
-import edu.stanford.spezi.core.design.theme.SpeziTheme
-import edu.stanford.spezi.core.design.theme.ThemePreviews
+import edu.stanford.spezi.core.utils.extensions.testIdentifier
 import kotlinx.coroutines.launch
 import org.hl7.fhir.r4.model.Questionnaire
 
@@ -84,7 +82,9 @@ fun QuestionnaireComposable(
     val fragmentState = rememberFragmentState()
     AndroidFragment<QuestionnaireFragment>(
         fragmentState = fragmentState,
-        modifier = modifier.fillMaxSize(),
+        modifier = modifier
+            .fillMaxSize()
+            .testIdentifier(QuestionnaireComposableTestIdentifiers.ROOT),
         arguments = arguments,
     ) { fragment ->
         fragment.setFragmentResultListener(
@@ -115,6 +115,10 @@ fun QuestionnaireComposable(
     }
 }
 
+enum class QuestionnaireComposableTestIdentifiers {
+    ROOT,
+}
+
 @Composable
 private fun QuestionnaireCancelAlert(
     modifier: Modifier = Modifier,
@@ -136,17 +140,3 @@ private fun QuestionnaireCancelAlert(
         }
     )
 }
-
-@ThemePreviews
-@Composable
-private fun QuestionnaireComposablePreview() {
-    SpeziTheme(isPreview = true) {
-        // TODO: Preview is unfortunately not working due to missing "FragmentActivity"
-        //  - is there a fix for that or simply no way to preview this?
-        QuestionnaireComposable(
-            remember { Questionnaire() }
-        ) {
-            println("Received result: $it")
-        }
-    }
-}