[AE Flicker Test] From Activity A launch a trampoline Activity, expect to finish in a split A|B

Bug: 238043427
Test: atest

Change-Id: I6e24731fd99a9d751ee29703581afa2bae1ce4c3

tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/open/OpenTrampolineActivityTest.kt

@@ -0,0 +1,228 @@
+/*
+ * Copyright (C) 2023 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
+ *
+ *      http://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.server.wm.flicker.activityembedding
+
+import android.platform.test.annotations.Presubmit
+import android.tools.common.datatypes.Rect
+import android.tools.common.datatypes.Region
+import android.tools.common.flicker.subject.region.RegionSubject
+import android.tools.common.traces.component.ComponentNameMatcher
+import android.tools.device.flicker.junit.FlickerParametersRunnerFactory
+import android.tools.device.flicker.legacy.FlickerBuilder
+import android.tools.device.flicker.legacy.LegacyFlickerTest
+import android.tools.device.flicker.legacy.LegacyFlickerTestFactory
+import androidx.test.filters.RequiresDevice
+import com.android.server.wm.flicker.helpers.ActivityEmbeddingAppHelper
+import org.junit.FixMethodOrder
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.MethodSorters
+import org.junit.runners.Parameterized
+
+/**
+ * Test launching a trampoline activity and resulting in a split state.
+ *
+ * Setup: Launch Activity A in fullscreen.
+ *
+ * Transitions: From A launch a trampoline Activity T, T launches secondary Activity B and
+ * finishes itself, end up in split A|B.
+ *
+ * To run this test: `atest FlickerTests:OpenTrampolineActivityTest`
+ */
+@RequiresDevice
+@RunWith(Parameterized::class)
+@Parameterized.UseParametersRunnerFactory(FlickerParametersRunnerFactory::class)
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+class OpenTrampolineActivityTest(flicker: LegacyFlickerTest) : ActivityEmbeddingTestBase(flicker) {
+    override val transition: FlickerBuilder.() -> Unit = {
+        setup {
+            tapl.setExpectedRotationCheckEnabled(false)
+            testApp.launchViaIntent(wmHelper)
+            startDisplayBounds =
+                    wmHelper.currentState.layerState.physicalDisplayBounds
+                            ?: error("Can't get display bounds")
+        }
+        transitions {
+            testApp.launchTrampolineActivity(wmHelper)
+        }
+        teardown {
+            tapl.goHome()
+            testApp.exit(wmHelper)
+        }
+    }
+
+    /** Assert the background animation layer is never visible during bounds change transition. */
+    @Presubmit
+    @Test
+    fun backgroundLayerNeverVisible() {
+        val backgroundColorLayer = ComponentNameMatcher("", "Animation Background")
+        flicker.assertLayers {
+            isInvisible(backgroundColorLayer)
+        }
+    }
+
+    /** Trampoline activity should finish itself before the end of this test. */
+    @Presubmit
+    @Test
+    fun trampolineActivityFinishes() {
+        flicker.assertWmEnd {
+            notContains(ActivityEmbeddingAppHelper.TRAMPOLINE_ACTIVITY_COMPONENT)
+        }
+    }
+
+    @Presubmit
+    @Test
+    fun trampolineLayerNeverVisible() {
+        flicker.assertLayers {
+            isInvisible(ActivityEmbeddingAppHelper.TRAMPOLINE_ACTIVITY_COMPONENT)
+        }
+    }
+
+    /** Main activity is always visible throughout this test. */
+    @Presubmit
+    @Test
+    fun mainActivityWindowAlwaysVisible() {
+        flicker.assertWm {
+            isAppWindowVisible(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+        }
+    }
+
+    // TODO(b/289140963): After this is fixed, assert the main Activity window is visible
+    //  throughout the test instead.
+    /** Main activity layer is visible before and after the transition. */
+    @Presubmit
+    @Test
+    fun mainActivityLayerAlwaysVisible() {
+        flicker.assertLayersStart {
+            isVisible(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+        }
+        flicker.assertLayersEnd {
+            isVisible(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+        }
+    }
+
+    /** Secondary activity is launched from the trampoline activity. */
+    @Presubmit
+    @Test
+    fun secondaryActivityWindowLaunchedFromTrampoline() {
+        flicker.assertWm {
+            notContains(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+                    .then()
+                    .isAppWindowInvisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+                    .then()
+                    .isAppWindowVisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+        }
+    }
+
+    /** Secondary activity is launched from the trampoline activity. */
+    @Presubmit
+    @Test
+    fun secondaryActivityLayerLaunchedFromTrampoline() {
+        flicker.assertLayers {
+            isInvisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+                    .then()
+                    .isVisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+        }
+    }
+
+    /** Main activity should go from fullscreen to being a split with secondary activity. */
+    @Presubmit
+    @Test
+    fun mainActivityWindowGoesFromFullscreenToSplit() {
+        flicker.assertWm {
+            this.invoke("mainActivityStartsInFullscreen") {
+                it.visibleRegion(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+                        .coversExactly(startDisplayBounds)
+            }
+                    // Begin of transition.
+                    .then()
+                    .isAppWindowInvisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+                    .then()
+                    .invoke("mainAndSecondaryInSplit") {
+                        val mainActivityRegion =
+                                RegionSubject(
+                                        it.visibleRegion(
+                                                ActivityEmbeddingAppHelper
+                                                        .MAIN_ACTIVITY_COMPONENT).region,
+                                        it.timestamp)
+                        val secondaryActivityRegion =
+                                RegionSubject(
+                                        it.visibleRegion(
+                                                ActivityEmbeddingAppHelper
+                                                        .SECONDARY_ACTIVITY_COMPONENT).region,
+                                        it.timestamp)
+                        check { "height" }
+                                .that(mainActivityRegion.region.height)
+                                .isEqual(secondaryActivityRegion.region.height)
+                        check { "width" }
+                                .that(mainActivityRegion.region.width)
+                                .isEqual(secondaryActivityRegion.region.width)
+                        mainActivityRegion
+                                .plus(secondaryActivityRegion.region)
+                                .coversExactly(startDisplayBounds)
+                    }
+        }
+    }
+
+    /** Main activity should go from fullscreen to being a split with secondary activity. */
+    @Presubmit
+    @Test
+    fun mainActivityLayerGoesFromFullscreenToSplit() {
+        flicker.assertLayers {
+            this.invoke("mainActivityStartsInFullscreen") {
+                it.visibleRegion(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+                        .coversExactly(startDisplayBounds)
+            }
+                    .then()
+                    .isInvisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+                    .then()
+                    .isVisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+        }
+        flicker.assertLayersEnd {
+            val leftLayerRegion = visibleRegion(
+                    ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+            val rightLayerRegion =
+                    visibleRegion(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+            // Compare dimensions of two splits, given we're using default split attributes,
+            // both activities take up the same visible size on the display.
+            check { "height" }
+                    .that(leftLayerRegion.region.height)
+                    .isEqual(rightLayerRegion.region.height)
+            check { "width" }
+                    .that(leftLayerRegion.region.width)
+                    .isEqual(rightLayerRegion.region.width)
+            leftLayerRegion.notOverlaps(rightLayerRegion.region)
+            // Layers of two activities sum to be fullscreen size on display.
+            leftLayerRegion.plus(rightLayerRegion.region).coversExactly(startDisplayBounds)
+        }
+    }
+
+    companion object {
+        /** {@inheritDoc} */
+        private var startDisplayBounds = Rect.EMPTY
+
+        /**
+         * Creates the test configurations.
+         *
+         * See [LegacyFlickerTestFactory.nonRotationTests] for configuring screen orientation and
+         * navigation modes.
+         */
+        @Parameterized.Parameters(name = "{0}")
+        @JvmStatic
+        fun getParams() = LegacyFlickerTestFactory.nonRotationTests()
+    }
+}

tests/FlickerTests/src/com/android/server/wm/flicker/helpers/ActivityEmbeddingAppHelper.kt

@@ -76,6 +76,25 @@ constructor(
             .waitForAndVerify()
     }
 
+    /**
+     * Clicks the button to launch the trampoline activity, which should launch the secondary
+     * activity and finish itself.
+     */
+    fun launchTrampolineActivity(wmHelper: WindowManagerStateHelper) {
+        val launchButton =
+                uiDevice.wait(
+                        Until.findObject(By.res(getPackage(), "launch_trampoline_button")),
+                        FIND_TIMEOUT
+                )
+        require(launchButton != null) { "Can't find launch trampoline activity button on screen." }
+        launchButton.click()
+        wmHelper
+                .StateSyncBuilder()
+                .withActivityState(SECONDARY_ACTIVITY_COMPONENT, PlatformConsts.STATE_RESUMED)
+                .withActivityRemoved(TRAMPOLINE_ACTIVITY_COMPONENT)
+                .waitForAndVerify()
+    }
+
     /**
      * Clicks the button to finishes the secondary activity launched through
      * [launchSecondaryActivity], waits for the main activity to resume.
@@ -197,6 +216,9 @@ constructor(
             ActivityOptions.ActivityEmbedding.PlaceholderSecondaryActivity.COMPONENT
                 .toFlickerComponent()
 
+        val TRAMPOLINE_ACTIVITY_COMPONENT =
+                ActivityOptions.ActivityEmbedding.TrampolineActivity.COMPONENT.toFlickerComponent()
+
         @JvmStatic
         fun getWindowExtensions(): WindowExtensions? {
             try {

tests/FlickerTests/test-apps/flickerapp/AndroidManifest.xml

@@ -192,6 +192,14 @@
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <activity
+            android:name=".ActivityEmbeddingTrampolineActivity"
+            android:label="ActivityEmbedding Trampoline"
+            android:taskAffinity="com.android.server.wm.flicker.testapp.ActivityEmbedding"
+            android:theme="@style/CutoutShortEdges"
+            android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout"
+            android:exported="false">
+        </activity>
         <activity
             android:name=".ActivityEmbeddingSecondaryActivity"
             android:label="ActivityEmbedding Secondary"

tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_main_layout.xml

@@ -60,4 +60,12 @@
         android:tag="RIGHT_TO_LEFT"
         android:text="Launch Placeholder Split in RTL" />
 
+    <Button
+        android:id="@+id/launch_trampoline_button"
+        android:layout_width="wrap_content"
+        android:layout_height="48dp"
+        android:onClick="launchTrampolineActivity"
+        android:tag="LEFT_TO_RIGHT"
+        android:text="Launch Trampoline Activity" />
+
 </LinearLayout>

tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingMainActivity.java

@@ -16,14 +16,12 @@
 
 package com.android.server.wm.flicker.testapp;
 
-
+import androidx.annotation.NonNull;
 import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
 
-import com.android.server.wm.flicker.helpers.ActivityEmbeddingAppHelper;
-import androidx.annotation.NonNull;
 import androidx.window.embedding.ActivityFilter;
 import androidx.window.embedding.ActivityRule;
 import androidx.window.embedding.EmbeddingAspectRatio;
@@ -59,6 +57,15 @@ public class ActivityEmbeddingMainActivity extends Activity {
         mRuleController = RuleController.getInstance(this);
     }
 
+    /** R.id.launch_trampoline_button onClick */
+    public void launchTrampolineActivity(View view) {
+        final String layoutDirection = view.getTag().toString();
+        mRuleController.clearRules();
+        mRuleController.addRule(createSplitPairRules(layoutDirection));
+        startActivity(new Intent().setComponent(
+                ActivityOptions.ActivityEmbedding.TrampolineActivity.COMPONENT));
+    }
+
     /** R.id.launch_secondary_activity_button onClick */
     public void launchSecondaryActivity(View view) {
         final String layoutDirection = view.getTag().toString();

tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingTrampolineActivity.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2023 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
+ *
+ *      http://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.server.wm.flicker.testapp;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+
+/**
+ * A Trampoline Activity that launches {@link ActivityEmbeddingSecondaryActivity} and then
+ * finishes itself.
+ */
+public class ActivityEmbeddingTrampolineActivity extends Activity {
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        // Trampoline activity doesn't have a view.
+        startActivity(new Intent().setComponent(
+                ActivityOptions.ActivityEmbedding.SecondaryActivity.COMPONENT));
+        finish();
+    }
+}

tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityOptions.java

@@ -122,6 +122,12 @@ public class ActivityOptions {
             public static final ComponentName COMPONENT = new ComponentName(FLICKER_APP_PACKAGE,
                     FLICKER_APP_PACKAGE + ".ActivityEmbeddingPlaceholderSecondaryActivity");
         }
+
+        public static class TrampolineActivity {
+            public static final String LABEL = "ActivityEmbeddingTrampolineActivity";
+            public static final ComponentName COMPONENT = new ComponentName(FLICKER_APP_PACKAGE,
+                    FLICKER_APP_PACKAGE + ".ActivityEmbeddingTrampolineActivity");
+        }
     }
 
     public static class Notification {