feat: initial automated screenshots

app/build.gradle.kts

@@ -80,9 +80,10 @@ dependencies {
 	implementation("io.coil-kt:coil-video:2.4.0")
 	implementation("androidx.gridlayout:gridlayout:1.0.0")
 	implementation("io.noties.markwon:core:4.6.2")
-	testImplementation("junit:junit:4.13.2")
-	testImplementation("androidx.test.ext:junit:1.1.5")
-	testImplementation("androidx.test.espresso:espresso-core:3.5.1")
+	androidTestImplementation("junit:junit:4.13.2")
+	androidTestImplementation("androidx.test:core:1.5.0")
+	androidTestImplementation("androidx.test.ext:junit:1.1.5")
+	androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
 }
 
 ktlint {

app/src/androidTest/java/com/fredhappyface/ewesticker/ExampleInstrumentedTest.kt

@@ -1,22 +1,127 @@
 package com.fredhappyface.ewesticker
 
+import android.content.ContentValues
+import android.content.Context
+import android.graphics.Bitmap
+import android.os.Environment
+import android.provider.MediaStore
+import androidx.test.core.app.ActivityScenario
+import androidx.test.core.app.takeScreenshot
+import android.app.UiModeManager
+import android.content.res.Configuration
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
-import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.Rule
 import org.junit.Test
+import org.junit.rules.TestName
 import org.junit.runner.RunWith
+import java.io.OutputStream
+import java.util.Locale
 
-/**
- * Instrumented test, which will execute on an Android device.
+/*
+ * Illustrates usage of APIs to capture a bitmap from view and saving it to test storage.
  *
- * See [testing documentation](http://d.android.com/tools/testing).
+ * When this test is executed via gradle managed devices, the saved image files will be stored at
+ * build/outputs/managed_device_android_test_additional_output/debugAndroidTest/managedDevice/nexusOneApi30/
  */
 @RunWith(AndroidJUnit4::class)
-class ExampleInstrumentedTest {
+class ScreenshotTest {
+
+	// a handy JUnit rule that stores the method name, so it can be used to generate unique
+	// screenshot files per test method
+	@get:Rule
+	var nameRule: TestName = TestName()
+
+	private val appContext: Context = InstrumentationRegistry.getInstrumentation().targetContext
+	private lateinit var activityScenario: ActivityScenario<MainActivity>
+
+	@Before
+	fun setUp() {
+		// Launch the main activity of your app
+		activityScenario = ActivityScenario.launch(MainActivity::class.java)
+	}
+
+
+	/**
+	 * Captures and saves an image of the entire device screen to storage.
+	 */
 	@Test
-	fun useAppContext() {
-		// Context of the app under test.
-		val appContext = InstrumentationRegistry.getInstrumentation().targetContext
-		assertEquals("com.fredhappyface.ewesticker", appContext.packageName)
+	fun mainActivityLight() {
+		val bitmap = takeScreenshot()
+		saveBitmapToMediaStore(appContext, bitmap, nameRule.methodName)
+		assert(true)
+	}
+
+	@Test
+	fun mainActivityDark() {
+		val uiModeManager = appContext.getSystemService(Context.UI_MODE_SERVICE) as UiModeManager
+		uiModeManager.nightMode = UiModeManager.MODE_NIGHT_YES
+		activityScenario.recreate()
+
+		val bitmap = takeScreenshot()
+		saveBitmapToMediaStore(appContext, bitmap, nameRule.methodName)
+
+
+		uiModeManager.nightMode = UiModeManager.MODE_NIGHT_NO
+
+		assert(true)
+	}
+
+	@Test
+	fun mainActivityFr() {
+		setLocale("fr")
+		val bitmap = takeScreenshot()
+		saveBitmapToMediaStore(appContext, bitmap, nameRule.methodName)
+		assert(true)
+	}
+
+
+	private fun setLocale(languageCode: String) {
+		val locale = Locale(languageCode)
+		val config = Configuration()
+		config.setLocale(locale)
+		InstrumentationRegistry.getInstrumentation().targetContext.resources.updateConfiguration(
+			config,
+			null
+		)
+	}
+
+	private fun saveBitmapToMediaStore(context: Context, bitmap: Bitmap, fileName: String) {
+		// Define the subdirectory where the image will be saved (e.g., "Screenshots")
+		val subdirectory = "Screenshots/"
+
+		// Prepare the content values for the MediaStore
+		val values = ContentValues()
+		values.put(MediaStore.Images.Media.DISPLAY_NAME, "screenshot_$fileName")
+		values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg")
+		values.put(
+			MediaStore.MediaColumns.RELATIVE_PATH,
+			"${Environment.DIRECTORY_DCIM}/$subdirectory"
+		)
+		values.put(MediaStore.Images.Media.IS_PENDING, 1) // Mark the image as pending
+
+		// Insert the image into the MediaStore
+		val uri =
+			context.contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values)
+		uri?.let {
+			try {
+				// Open an OutputStream to the newly created image
+				val os: OutputStream? = context.contentResolver.openOutputStream(uri)
+
+				// Compress and save the bitmap to the OutputStream
+				bitmap.compress(Bitmap.CompressFormat.JPEG, 100, os)
+				os?.close()
+
+				// Mark the image as non-pending
+				values.clear()
+				values.put(MediaStore.Images.Media.IS_PENDING, 0)
+				context.contentResolver.update(uri, values, null, null)
+			} catch (e: Exception) {
+				e.printStackTrace()
+			}
+		}
 	}
 }
+
+