[AE Flicker Test] Enter Splitscreen with another app

Test: atest
Bug: 238043427
Change-Id: I62b6dcd0c0b6ea245c25c53b2733ebcfa320f8ad

2 files changed, 190 insertions, 0 deletions

diff --git a/tests/FlickerTests/Android.bp b/tests/FlickerTests/Android.bp
index 1d423ca6aa36..2ccc0fa9e1e7 100644
--- a/tests/FlickerTests/Android.bp
+++ b/tests/FlickerTests/Android.bp
@@ -97,6 +97,7 @@ java_defaults {
         "flickerlib-helpers",
         "platform-test-annotations",
         "wm-flicker-common-app-helpers",
+        "wm-shell-flicker-utils",
     ],
     data: [
         ":FlickerTestApp",
diff --git a/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/splitscreen/EnterSystemSplitTest.kt b/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/splitscreen/EnterSystemSplitTest.kt
new file mode 100644
index 000000000000..87231c86ef19
--- /dev/null
+++ b/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/splitscreen/EnterSystemSplitTest.kt
@@ -0,0 +1,189 @@
+/*
+ * 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.splitscreen
+
+import android.platform.test.annotations.Presubmit
+import android.platform.test.annotations.RequiresDevice
+import android.tools.common.datatypes.Rect
+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 android.tools.device.traces.parsers.toFlickerComponent
+import com.android.server.wm.flicker.helpers.ActivityEmbeddingAppHelper
+import com.android.server.wm.flicker.activityembedding.ActivityEmbeddingTestBase
+import com.android.server.wm.flicker.testapp.ActivityOptions
+import com.android.wm.shell.flicker.utils.*
+import org.junit.FixMethodOrder
+import org.junit.Ignore
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.MethodSorters
+import org.junit.runners.Parameterized
+
+/***
+ * Test entering System SplitScreen with Activity Embedding Split and another app.
+ *
+ * Setup: Launch A|B in split and secondaryApp, return to home.
+ * Transitions: Let AE Split A|B enter splitscreen with secondaryApp. Resulting in A|B|secondaryApp.
+ *
+ * To run this test: `atest FlickerTestsOther:EnterSystemSplitTest`
+ */
+@RequiresDevice
+@RunWith(Parameterized::class)
+@Parameterized.UseParametersRunnerFactory(FlickerParametersRunnerFactory::class)
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+class EnterSystemSplitTest(flicker: LegacyFlickerTest) :
+        ActivityEmbeddingTestBase(flicker) {
+
+    private val secondaryApp = SplitScreenUtils.getPrimary(instrumentation)
+    override val transition: FlickerBuilder.() -> Unit = {
+        setup {
+            testApp.launchViaIntent(wmHelper)
+            testApp.launchSecondaryActivity(wmHelper)
+            secondaryApp.launchViaIntent(wmHelper)
+            tapl.goHome()
+            wmHelper
+                    .StateSyncBuilder()
+                    .withAppTransitionIdle()
+                    .withHomeActivityVisible()
+                    .waitForAndVerify()
+            startDisplayBounds =
+                    wmHelper.currentState.layerState.physicalDisplayBounds ?:
+                    error("Display not found")
+        }
+        transitions {
+            SplitScreenUtils.enterSplit(wmHelper, tapl, device, testApp, secondaryApp)
+            SplitScreenUtils.waitForSplitComplete(wmHelper, testApp, secondaryApp)
+        }
+    }
+
+    @Presubmit
+    @Test
+    fun splitScreenDividerBecomesVisible() = flicker.splitScreenDividerBecomesVisible()
+
+    @Presubmit
+    @Test
+    fun activityEmbeddingSplitLayerBecomesVisible() {
+        flicker.splitAppLayerBoundsIsVisibleAtEnd(
+                testApp, landscapePosLeft = tapl.isTablet, portraitPosTop = false)
+    }
+
+    @Presubmit
+    @Test
+    fun activityEmbeddingSplitWindowBecomesVisible() = flicker.appWindowIsVisibleAtEnd(testApp)
+
+    @Presubmit
+    @Test
+    fun secondaryLayerBecomesVisible() {
+        flicker.splitAppLayerBoundsIsVisibleAtEnd(
+                secondaryApp, landscapePosLeft = !tapl.isTablet, portraitPosTop = true)
+    }
+
+    @Presubmit
+    @Test
+    fun secondaryAppWindowBecomesVisible() = flicker.appWindowIsVisibleAtEnd(secondaryApp)
+
+    /**
+     * After the transition there should be both ActivityEmbedding activities,
+     * SplitScreenPrimaryActivity and the system split divider on screen.
+     * Verify the layers are in expected sizes.
+     */
+    @Presubmit
+    @Test
+    fun activityEmbeddingSplitSurfaceAreEven() {
+        flicker.assertLayersEnd {
+            val leftAELayerRegion =
+                    visibleRegion(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+            val rightAELayerRegion =
+                    visibleRegion(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+            val secondaryAppLayerRegion =
+                    visibleRegion(
+                            ActivityOptions.SplitScreen.Primary.COMPONENT.toFlickerComponent())
+            val systemDivider = visibleRegion(SPLIT_SCREEN_DIVIDER_COMPONENT)
+            leftAELayerRegion
+                    .plus(rightAELayerRegion.region)
+                    .plus(secondaryAppLayerRegion.region)
+                    .plus(systemDivider.region)
+                    .coversExactly(startDisplayBounds)
+            check { "ActivityEmbeddingSplitHeight" }
+                    .that(leftAELayerRegion.region.height)
+                    .isEqual(rightAELayerRegion.region.height)
+            check { "SystemSplitHeight" }
+                    .that(rightAELayerRegion.region.height)
+                    .isEqual(secondaryAppLayerRegion.region.height)
+            // TODO(b/292283182): Remove this special case handling.
+            check { "ActivityEmbeddingSplitWidth" }
+                    .that(Math.abs(
+                            leftAELayerRegion.region.width - rightAELayerRegion.region.width))
+                    .isLower(2)
+            check { "SystemSplitWidth" }
+                    .that(Math.abs(secondaryAppLayerRegion.region.width -
+                            2 * rightAELayerRegion.region.width))
+                    .isLower(2)
+        }
+    }
+
+    /**
+     * Verify the windows are in expected sizes.
+     */
+    @Presubmit
+    @Test
+    fun activityEmbeddingSplitWindowsAreEven() {
+        flicker.assertWmEnd {
+            val leftAEWindowRegion =
+                    visibleRegion(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+            val rightAEWindowRegion =
+                    visibleRegion(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+            // There's no window for the divider bar.
+            val secondaryAppLayerRegion =
+                    visibleRegion(
+                            ActivityOptions.SplitScreen.Primary.COMPONENT.toFlickerComponent())
+            check { "ActivityEmbeddingSplitHeight" }
+                    .that(leftAEWindowRegion.region.height)
+                    .isEqual(rightAEWindowRegion.region.height)
+            check { "SystemSplitHeight" }
+                    .that(rightAEWindowRegion.region.height)
+                    .isEqual(secondaryAppLayerRegion.region.height)
+            check { "ActivityEmbeddingSplitWidth" }
+                    .that(Math.abs(
+                            leftAEWindowRegion.region.width - rightAEWindowRegion.region.width))
+                    .isLower(2)
+            check { "SystemSplitWidth" }
+                    .that(Math.abs(secondaryAppLayerRegion.region.width -
+                            2 * rightAEWindowRegion.region.width))
+                    .isLower(2)
+        }
+    }
+
+    @Ignore("Not applicable to this CUJ.")
+    override fun visibleLayersShownMoreThanOneConsecutiveEntry() {}
+
+    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()
+    }
+}
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