Adds Preview Screenshot tool and basic tests + fixes build

JoseAlcerreca · JoseAlcerreca · commit 4c90c69b3470 · 2025-05-12T20:20:38.000Z
Change-Id: I10e503afe53adef41eaa93e38ee9a96e171382c1
diff --git a/core/network/src/main/AndroidManifest.xml b/core/network/src/main/AndroidManifest.xml
@@ -17,6 +17,19 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
     <application>
-
+        <provider
+            android:name="androidx.startup.InitializationProvider"
+            android:authorities="${applicationId}.androidx-startup"
+            android:exported="false"
+            tools:node="merge">
+            <!-- Core Firebase App Initialization -->
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseAppInitializer"
+                       android:value="androidx.startup" />
+            <!-- Other Firebase Initializers -->
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseAppCheckInitializer"
+                android:value="androidx.startup" />
+            <meta-data android:name="com.android.developers.androidify.startup.FirebaseRemoteConfigInitializer"
+                android:value="androidx.startup" />
+        </provider>
     </application>
-</manifest>
+</manifest>
diff --git a/core/network/src/main/res/xml/startup_initializers.xml b/core/network/src/main/res/xml/startup_initializers.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources xmlns:android="http://schemas.android.com/apk/res/android">
+    <initializer
+        android:name="com.android.developers.androidify.startup.FirebaseAppCheckInitializer" />
+    <initializer
+        android:name="com.android.developers.androidify.startup.FirebaseRemoteConfigInitializer" />
+</resources>
diff --git a/feature/camera/build.gradle.kts b/feature/camera/build.gradle.kts
@@ -19,6 +19,7 @@ plugins {
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.kotlin.ksp)
     alias(libs.plugins.hilt)
+    alias(libs.plugins.composeScreenshot)
 }
 
 android {
@@ -41,6 +42,8 @@ android {
         compose = true
     }
 
+    experimentalProperties["android.experimental.enableScreenshotTest"] = true
+
     testOptions {
         targetSdk = 36
     }
@@ -82,4 +85,5 @@ dependencies {
     kspAndroidTest(libs.hilt.compiler)
 
     debugImplementation(libs.androidx.ui.test.manifest)
+    screenshotTestImplementation(libs.androidx.ui.tooling)
 }
diff --git a/feature/camera/src/debug/screenshotTest/reference/com/android/developers/androidify/camera/CameraScreenScreenshotTest/CameraScreenScreenshot_748aa731_0.png b/feature/camera/src/debug/screenshotTest/reference/com/android/developers/androidify/camera/CameraScreenScreenshotTest/CameraScreenScreenshot_748aa731_0.png
diff --git a/feature/camera/src/screenshotTest/java/com/android/developers/androidify/camera/CameraScreenScreenshotTest.kt b/feature/camera/src/screenshotTest/java/com/android/developers/androidify/camera/CameraScreenScreenshotTest.kt
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.developers.androidify.camera
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.tooling.preview.Preview
+import com.android.developers.androidify.theme.AndroidifyTheme
+
+class CameraScreenScreenshotTest {
+
+    @Preview(showBackground = true)
+    @Composable
+    fun CameraScreenScreenshot() {
+        AndroidifyTheme {
+            StatelessCameraPreviewContent(
+                viewfinder = { modifier -> Box(modifier) },
+                detectedPose = true,
+                canFlipCamera = true,
+                requestFlipCamera = {},
+                defaultZoomOptions = listOf(1f),
+                zoomLevel = { 1f },
+                onChangeZoomLevel = {},
+                requestCaptureImage = {}
+            )
+        }
+    }
+}
diff --git a/feature/creation/build.gradle.kts b/feature/creation/build.gradle.kts
@@ -19,6 +19,7 @@ plugins {
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.kotlin.ksp)
     alias(libs.plugins.hilt)
+    alias(libs.plugins.composeScreenshot)
 }
 
 android {
@@ -42,6 +43,9 @@ android {
     buildFeatures {
         compose = true
     }
+
+    experimentalProperties["android.experimental.enableScreenshotTest"] = true
+
     testOptions {
         unitTests {
             isIncludeAndroidResources = true
diff --git a/feature/creation/src/test/kotlin/com/android/developers/androidify/creation/CreationViewModelTest.kt b/feature/creation/src/test/kotlin/com/android/developers/androidify/creation/CreationViewModelTest.kt
@@ -33,12 +33,14 @@ import org.junit.Rule
 import org.junit.runner.RunWith
 import org.robolectric.RobolectricTestRunner
 import org.robolectric.RuntimeEnvironment
+import org.robolectric.annotation.Config
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertNotNull
 
 @OptIn(ExperimentalCoroutinesApi::class)
 @RunWith(RobolectricTestRunner::class)
+@Config(sdk = [35])
 class CreationViewModelTest {
     @get:Rule
     val mainDispatcherRule = MainDispatcherRule()
diff --git a/feature/home/build.gradle.kts b/feature/home/build.gradle.kts
@@ -19,6 +19,7 @@ plugins {
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.kotlin.ksp)
     alias(libs.plugins.hilt)
+    alias(libs.plugins.composeScreenshot)
 }
 
 android {
@@ -40,6 +41,8 @@ android {
     buildFeatures {
         compose = true
     }
+
+    experimentalProperties["android.experimental.enableScreenshotTest"] = true
 }
 
 dependencies {
diff --git a/feature/home/src/debug/screenshotTest/reference/com/android/developers/androidify/home/HomeScreenScreenshotTest/HomeScreenScreenshot_748aa731_0.png b/feature/home/src/debug/screenshotTest/reference/com/android/developers/androidify/home/HomeScreenScreenshotTest/HomeScreenScreenshot_748aa731_0.png
diff --git a/feature/home/src/screenshotTest/java/com/android/developers/androidify/home/HomeScreenScreenshotTest.kt b/feature/home/src/screenshotTest/java/com/android/developers/androidify/home/HomeScreenScreenshotTest.kt
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.developers.androidify.home
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.tooling.preview.Preview
+import com.android.developers.androidify.theme.AndroidifyTheme
+import com.android.developers.androidify.theme.SharedElementContextPreview
+
+class HomeScreenScreenshotTest {
+
+    @Preview(showBackground = true)
+    @Composable
+    fun HomeScreenScreenshot() {
+        AndroidifyTheme {
+            SharedElementContextPreview {
+                HomeScreenContents(
+                    isMediumWindowSize = false,
+                    onClickLetsGo = { },
+                    onAboutClicked = {},
+                    videoLink = "",
+                    dancingBotLink = ""
+                )
+            }
+        }
+    }
+}
diff --git a/feature/results/build.gradle.kts b/feature/results/build.gradle.kts
@@ -19,6 +19,7 @@ plugins {
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.kotlin.ksp)
     alias(libs.plugins.hilt)
+    alias(libs.plugins.composeScreenshot)
 }
 
 android {
@@ -41,6 +42,9 @@ android {
     buildFeatures {
         compose = true
     }
+
+    experimentalProperties["android.experimental.enableScreenshotTest"] = true
+
     testOptions {
         targetSdk = 36
     }
diff --git a/feature/results/src/debug/screenshotTest/reference/com/android/developers/androidify/results/ResultsScreenScreenshotTest/ResultsScreenScreenshot_748aa731_0.png b/feature/results/src/debug/screenshotTest/reference/com/android/developers/androidify/results/ResultsScreenScreenshotTest/ResultsScreenScreenshot_748aa731_0.png
diff --git a/feature/results/src/screenshotTest/java/com/android/developers/androidify/results/ResultsScreenScreenshotTest.kt b/feature/results/src/screenshotTest/java/com/android/developers/androidify/results/ResultsScreenScreenshotTest.kt
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.developers.androidify.results
+
+import android.graphics.Bitmap
+import android.graphics.Canvas
+import android.graphics.Color
+import android.graphics.LinearGradient
+import android.graphics.Paint
+import android.graphics.Shader
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalInspectionMode
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import com.android.developers.androidify.theme.AndroidifyTheme
+
+class ResultsScreenScreenshotTest {
+
+    @Preview(showBackground = true)
+    @Composable
+    fun ResultsScreenScreenshot() {
+        val width = 200
+        val height = 200
+        val mockBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
+        val canvas = Canvas(mockBitmap)
+        val paint = Paint()
+        val gradient = LinearGradient(
+            0f, 0f, width.toFloat(), height.toFloat(),
+            Color.RED, Color.BLUE, Shader.TileMode.CLAMP
+        )
+        paint.shader = gradient
+        canvas.drawRect(0f, 0f, width.toFloat(), height.toFloat(), paint)
+
+        val state = remember {
+            mutableStateOf(
+                ResultState(
+                    resultImageBitmap = mockBitmap,
+                    promptText = "a test prompt",
+                ),
+            )
+        }
+        CompositionLocalProvider(value = LocalInspectionMode provides true) {
+            AndroidifyTheme {
+                ResultsScreenContents(
+                    contentPadding = PaddingValues(0.dp),
+                    state = state,
+                    verboseLayout = false,
+                    downloadClicked = {},
+                    shareClicked = {},
+                )
+            }
+        }
+    }
+}
diff --git a/gradle.properties b/gradle.properties
@@ -22,4 +22,5 @@ kotlin.code.style=official
 # thereby reducing the size of the R class for that library
 android.nonTransitiveRClass=true
 android.disableMinifyLocalDependenciesForLibraries=true
-org.gradle.configuration-cache=true
+org.gradle.configuration-cache=true
+android.experimental.enableScreenshotTest=true
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -141,3 +141,4 @@ kotlin-ksp = { id ="com.google.devtools.ksp", version.ref = "ksp" }
 serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlinxSerialization" }
 android-test = { id = "com.android.test", version.ref = "agp" }
 baselineprofile = { id = "androidx.baselineprofile", version.ref = "baselineprofile" }
+composeScreenshot = { id = "com.android.compose.screenshot", version = "0.0.1-alpha09" }

Original file line number	Diff line number	Diff line change
`@@ -19,6 +19,7 @@ plugins {`
`19`	`19`	`alias(libs.plugins.kotlin.compose)`
`20`	`20`	`alias(libs.plugins.kotlin.ksp)`
`21`	`21`	`alias(libs.plugins.hilt)`
	`22`	`+ alias(libs.plugins.composeScreenshot)`
`22`	`23`	`}`
`23`	`24`
`24`	`25`	`android {`
`@@ -41,6 +42,8 @@ android {`
`41`	`42`	`compose = true`
`42`	`43`	`}`
`43`	`44`
	`45`	`+ experimentalProperties["android.experimental.enableScreenshotTest"] = true`
	`46`	`+`
`44`	`47`	`testOptions {`
`45`	`48`	`targetSdk = 36`
`46`	`49`	`}`
`@@ -82,4 +85,5 @@ dependencies {`
`82`	`85`	`kspAndroidTest(libs.hilt.compiler)`
`83`	`86`
`84`	`87`	`debugImplementation(libs.androidx.ui.test.manifest)`
	`88`	`+ screenshotTestImplementation(libs.androidx.ui.tooling)`
`85`	`89`	`}`