Add tests for TaskbarAllAppsViewController.

Test: TaskbarAllAppsViewControllerTest
Flag: TEST_ONLY
Bug: 346394506
Change-Id: Ie1b6609b243326eb11d03d2ea7b0e98bd60c3a71
diff --git a/quickstep/src/com/android/launcher3/appprediction/AppsDividerView.java b/quickstep/src/com/android/launcher3/appprediction/AppsDividerView.java
index 7a8b58e..32fda48 100644
--- a/quickstep/src/com/android/launcher3/appprediction/AppsDividerView.java
+++ b/quickstep/src/com/android/launcher3/appprediction/AppsDividerView.java
@@ -31,6 +31,7 @@
 import android.view.accessibility.AccessibilityManager;
 
 import androidx.annotation.ColorInt;
+import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
@@ -253,4 +254,9 @@
     public View getFocusedChild() {
         return null;
     }
+
+    @VisibleForTesting
+    public DividerType getDividerType() {
+        return mDividerType;
+    }
 }
diff --git a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsControllerTest.kt b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsControllerTest.kt
index 43d924a..f783e40 100644
--- a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsControllerTest.kt
+++ b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsControllerTest.kt
@@ -199,8 +199,8 @@
         assertThat(editText?.hasFocus()).isTrue()
     }
 
-    private companion object {
-        private val TEST_APPS =
+    companion object {
+        val TEST_APPS =
             Array(16) {
                 AppInfo(
                     ComponentName(
@@ -213,6 +213,6 @@
                 )
             }
 
-        private val TEST_PREDICTED_APPS = TEST_APPS.take(4).map { WorkspaceItemInfo(it) }
+        val TEST_PREDICTED_APPS = TEST_APPS.take(4).map { WorkspaceItemInfo(it) }
     }
 }
diff --git a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewControllerTest.kt b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewControllerTest.kt
new file mode 100644
index 0000000..04f02e9
--- /dev/null
+++ b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsViewControllerTest.kt
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2024 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.launcher3.taskbar.allapps
+
+import androidx.test.platform.app.InstrumentationRegistry.getInstrumentation
+import com.android.launcher3.R
+import com.android.launcher3.appprediction.AppsDividerView
+import com.android.launcher3.appprediction.AppsDividerView.DividerType
+import com.android.launcher3.appprediction.PredictionRowView
+import com.android.launcher3.taskbar.TaskbarStashController
+import com.android.launcher3.taskbar.TaskbarStashController.FLAG_STASHED_IN_APP_AUTO
+import com.android.launcher3.taskbar.allapps.TaskbarAllAppsControllerTest.Companion.TEST_PREDICTED_APPS
+import com.android.launcher3.taskbar.overlay.TaskbarOverlayController
+import com.android.launcher3.taskbar.rules.TaskbarModeRule
+import com.android.launcher3.taskbar.rules.TaskbarModeRule.Mode.PINNED
+import com.android.launcher3.taskbar.rules.TaskbarModeRule.Mode.TRANSIENT
+import com.android.launcher3.taskbar.rules.TaskbarModeRule.TaskbarMode
+import com.android.launcher3.taskbar.rules.TaskbarPreferenceRule
+import com.android.launcher3.taskbar.rules.TaskbarUnitTestRule
+import com.android.launcher3.taskbar.rules.TaskbarUnitTestRule.InjectController
+import com.android.launcher3.taskbar.rules.TaskbarWindowSandboxContext
+import com.android.launcher3.util.LauncherMultivalentJUnit
+import com.android.launcher3.util.LauncherMultivalentJUnit.EmulatedDevices
+import com.android.launcher3.util.OnboardingPrefs.ALL_APPS_VISITED_COUNT
+import com.android.launcher3.util.TestUtil
+import com.google.common.truth.Truth.assertThat
+import org.junit.After
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(LauncherMultivalentJUnit::class)
+@EmulatedDevices(["pixelFoldable2023"])
+class TaskbarAllAppsViewControllerTest {
+
+    private val context = TaskbarWindowSandboxContext.create(getInstrumentation().targetContext)
+
+    @get:Rule(order = 0) val taskbarModeRule = TaskbarModeRule(context)
+    @get:Rule(order = 1)
+    val allAppsVisitedPreferenceRule =
+        TaskbarPreferenceRule(context, ALL_APPS_VISITED_COUNT.prefItem)
+    @get:Rule(order = 2) val taskbarUnitTestRule = TaskbarUnitTestRule(this, context)
+
+    @InjectController lateinit var overlayController: TaskbarOverlayController
+    @InjectController lateinit var stashController: TaskbarStashController
+
+    private val searchSessionController =
+        TestUtil.getOnUiThread { TaskbarSearchSessionController.newInstance(context) }
+
+    @After
+    fun cleanUpSearchSessionController() {
+        getInstrumentation().runOnMainSync { searchSessionController.onDestroy() }
+    }
+
+    @Test
+    @TaskbarMode(TRANSIENT)
+    fun testShow_transientMode_stashesTaskbar() {
+        getInstrumentation().runOnMainSync {
+            stashController.updateStateForFlag(FLAG_STASHED_IN_APP_AUTO.toLong(), false)
+            stashController.applyState(0)
+        }
+
+        val viewController = createViewController()
+        getInstrumentation().runOnMainSync { viewController.show(false) }
+        assertThat(stashController.isStashed).isTrue()
+    }
+
+    @Test
+    @TaskbarMode(PINNED)
+    fun testShow_pinnedMode_taskbarDoesNotStash() {
+        val viewController = createViewController()
+        getInstrumentation().runOnMainSync { viewController.show(false) }
+        assertThat(stashController.isStashed).isFalse()
+    }
+
+    @Test
+    @TaskbarMode(TRANSIENT)
+    fun testHide_transientMode_unstashesTaskbar() {
+        getInstrumentation().runOnMainSync {
+            stashController.updateStateForFlag(FLAG_STASHED_IN_APP_AUTO.toLong(), false)
+            stashController.applyState(0)
+        }
+
+        val viewController = createViewController()
+        getInstrumentation().runOnMainSync { viewController.show(false) }
+        getInstrumentation().runOnMainSync { viewController.close(false) }
+        assertThat(stashController.isStashed).isFalse()
+    }
+
+    @Test
+    fun testShow_firstAllAppsVisit_hasAllAppsTextDivider() {
+        allAppsVisitedPreferenceRule.value = 0
+        val viewController = createViewController()
+        getInstrumentation().runOnMainSync { viewController.show(false) }
+
+        val appsView = overlayController.requestWindow().appsView
+        getInstrumentation().runOnMainSync {
+            appsView.floatingHeaderView
+                .findFixedRowByType(PredictionRowView::class.java)
+                .setPredictedApps(TEST_PREDICTED_APPS)
+        }
+
+        val dividerView =
+            appsView.floatingHeaderView.findFixedRowByType(AppsDividerView::class.java)
+        assertThat(dividerView.dividerType).isEqualTo(DividerType.ALL_APPS_LABEL)
+    }
+
+    @Test
+    fun testShow_maxAllAppsVisitedCount_hasLineDivider() {
+        allAppsVisitedPreferenceRule.value = ALL_APPS_VISITED_COUNT.maxCount
+        val viewController = createViewController()
+        getInstrumentation().runOnMainSync { viewController.show(false) }
+
+        val appsView = overlayController.requestWindow().appsView
+        getInstrumentation().runOnMainSync {
+            appsView.floatingHeaderView
+                .findFixedRowByType(PredictionRowView::class.java)
+                .setPredictedApps(TEST_PREDICTED_APPS)
+        }
+
+        val dividerView =
+            appsView.floatingHeaderView.findFixedRowByType(AppsDividerView::class.java)
+        assertThat(dividerView.dividerType).isEqualTo(DividerType.LINE)
+    }
+
+    private fun createViewController(): TaskbarAllAppsViewController {
+        return TestUtil.getOnUiThread {
+            val overlayContext = overlayController.requestWindow()
+            TaskbarAllAppsViewController(
+                overlayContext,
+                overlayContext.layoutInflater.inflate(
+                    R.layout.taskbar_all_apps_sheet,
+                    overlayContext.dragLayer,
+                    false,
+                ) as TaskbarAllAppsSlideInView,
+                taskbarUnitTestRule.activityContext.controllers,
+                searchSessionController,
+                /* showKeyboard= */ false, // Covered in TaskbarAllAppsControllerTest.
+            )
+        }
+    }
+}