Add some basic tests for bubble controller

* Tests very basic state / interaction
* Doesn't test how bubbles are integrated with the rest
  of the system...

Test: atest BubbleControllerTest
Bug: 111236845
Change-Id: I05e093dc2b7ea2983e018c316689874b66946726
diff --git a/packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java b/packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java
index e868f96..4f5a48f 100644
--- a/packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java
+++ b/packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java
@@ -32,6 +32,7 @@
 import android.view.WindowManager;
 import android.widget.FrameLayout;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.systemui.Dependency;
 import com.android.systemui.R;
 import com.android.systemui.statusbar.notification.NotificationData;
@@ -67,7 +68,8 @@
     private Point mDisplaySize;
 
     // Bubbles get added to the status bar view
-    private StatusBarWindowController mStatusBarWindowController;
+    @VisibleForTesting
+    protected StatusBarWindowController mStatusBarWindowController;
 
     // Used for determining view rect for touch interaction
     private Rect mTempRect = new Rect();
@@ -297,6 +299,11 @@
         return mTempRect;
     }
 
+    @VisibleForTesting
+    public BubbleStackView getStackView() {
+        return mStackView;
+    }
+
     // TODO: factor in PIP location / maybe last place user had it
     /**
      * Gets an appropriate starting point to position the bubble stack.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
index 62b6d91..fd1044b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
@@ -84,7 +84,7 @@
     }
 
     @VisibleForTesting
-    StatusBarWindowController(Context context, WindowManager windowManager,
+    public StatusBarWindowController(Context context, WindowManager windowManager,
             IActivityManager activityManager, DozeParameters dozeParameters) {
         mContext = context;
         mWindowManager = windowManager;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/bubbles/BubbleControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/bubbles/BubbleControllerTest.java
new file mode 100644
index 0000000..16ef63f
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/systemui/bubbles/BubbleControllerTest.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2018 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.systemui.bubbles;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import android.app.IActivityManager;
+import android.content.Context;
+import android.support.test.filters.SmallTest;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+import android.view.WindowManager;
+import android.widget.FrameLayout;
+
+import com.android.systemui.SysuiTestCase;
+import com.android.systemui.statusbar.NotificationTestHelper;
+import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
+import com.android.systemui.statusbar.phone.DozeParameters;
+import com.android.systemui.statusbar.phone.StatusBarWindowController;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+@SmallTest
+@RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper(setAsMainLooper = true)
+public class BubbleControllerTest extends SysuiTestCase {
+
+    @Mock
+    private WindowManager mWindowManager;
+    @Mock
+    private IActivityManager mActivityManager;
+    @Mock
+    private DozeParameters mDozeParameters;
+    @Mock
+    private FrameLayout mStatusBarView;
+
+    private TestableBubbleController mBubbleController;
+    private StatusBarWindowController mStatusBarWindowController;
+
+    private NotificationTestHelper mNotificationTestHelper;
+    private ExpandableNotificationRow mRow;
+    private ExpandableNotificationRow mRow2;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+
+        // Bubbles get added to status bar window view
+        mStatusBarWindowController = new StatusBarWindowController(mContext, mWindowManager,
+                mActivityManager, mDozeParameters);
+        mStatusBarWindowController.add(mStatusBarView, 120 /* height */);
+
+        // Need notifications for bubbles
+        mNotificationTestHelper = new NotificationTestHelper(mContext);
+        mRow = mNotificationTestHelper.createBubble();
+        mRow2 = mNotificationTestHelper.createBubble();
+
+        mBubbleController = new TestableBubbleController(mContext, mStatusBarWindowController);
+    }
+
+    @Test
+    public void testIsBubble() {
+        assertTrue(mRow.getEntry().isBubble());
+    }
+
+    @Test
+    public void testAddBubble() {
+        mBubbleController.addBubble(mRow.getEntry());
+        assertTrue(mBubbleController.hasBubbles());
+    }
+
+    @Test
+    public void testHasBubbles() {
+        assertFalse(mBubbleController.hasBubbles());
+        mBubbleController.addBubble(mRow.getEntry());
+        assertTrue(mBubbleController.hasBubbles());
+    }
+
+    @Test
+    public void testRemoveBubble() {
+        mBubbleController.addBubble(mRow.getEntry());
+        assertTrue(mBubbleController.hasBubbles());
+
+        mBubbleController.removeBubble(mRow.getEntry().key);
+        assertFalse(mStatusBarWindowController.getBubblesShowing());
+    }
+
+    @Test
+    public void testDismissStack() {
+        mBubbleController.addBubble(mRow.getEntry());
+        mBubbleController.addBubble(mRow2.getEntry());
+        assertTrue(mBubbleController.hasBubbles());
+
+        mBubbleController.dismissStack();
+        assertFalse(mStatusBarWindowController.getBubblesShowing());
+    }
+
+    @Test
+    public void testIsStackExpanded() {
+        assertFalse(mBubbleController.isStackExpanded());
+        mBubbleController.addBubble(mRow.getEntry());
+
+        BubbleStackView stackView = mBubbleController.getStackView();
+        stackView.animateExpansion(true /* expanded */);
+        assertTrue(mBubbleController.isStackExpanded());
+
+        stackView.animateExpansion(false /* expanded */);
+        assertFalse(mBubbleController.isStackExpanded());
+    }
+
+    @Test
+    public void testCollapseStack() {
+        mBubbleController.addBubble(mRow.getEntry());
+        mBubbleController.addBubble(mRow2.getEntry());
+
+        BubbleStackView stackView = mBubbleController.getStackView();
+        stackView.animateExpansion(true /* expanded */);
+        assertTrue(mBubbleController.isStackExpanded());
+
+        mBubbleController.collapseStack();
+        assertFalse(mBubbleController.isStackExpanded());
+    }
+
+    static class TestableBubbleController extends BubbleController {
+
+        TestableBubbleController(Context context,
+                StatusBarWindowController statusBarWindowController) {
+            super(context);
+            mStatusBarWindowController = statusBarWindowController;
+        }
+    }
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationTestHelper.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationTestHelper.java
index aca1f90..724e1b6 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationTestHelper.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationTestHelper.java
@@ -33,9 +33,9 @@
 
 import com.android.systemui.R;
 import com.android.systemui.statusbar.notification.NotificationData;
+import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
 import com.android.systemui.statusbar.notification.row.NotificationInflater.InflationFlag;
 import com.android.systemui.statusbar.notification.row.NotificationInflaterTest;
-import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
 import com.android.systemui.statusbar.phone.HeadsUpManagerPhone;
 import com.android.systemui.statusbar.phone.NotificationGroupManager;
 import com.android.systemui.statusbar.policy.HeadsUpManager;
@@ -86,7 +86,8 @@
      * @throws Exception
      */
     public ExpandableNotificationRow createRow(String pkg, int uid) throws Exception {
-        return createRow(pkg, uid, false /* isGroupSummary */, null /* groupKey */);
+        return createRow(pkg, uid, false /* isGroupSummary */, null /* groupKey */,
+                false /* isBubble */);
     }
 
     /**
@@ -97,7 +98,8 @@
      * @throws Exception
      */
     public ExpandableNotificationRow createRow(Notification notification) throws Exception {
-        return generateRow(notification, PKG, UID, 0 /* extraInflationFlags */);
+        return generateRow(notification, PKG, UID, 0 /* extraInflationFlags */,
+                false /* isBubble */);
     }
 
     /**
@@ -110,7 +112,8 @@
      */
     public ExpandableNotificationRow createRow(@InflationFlag int extraInflationFlags)
             throws Exception {
-        return generateRow(createNotification(), PKG, UID, extraInflationFlags);
+        return generateRow(createNotification(), PKG, UID, extraInflationFlags,
+                false /* isBubble */);
     }
 
     /**
@@ -131,12 +134,20 @@
         return createGroup(2);
     }
 
+    /**
+     * Retursn an {@link ExpandableNotificationRow} that should be a bubble.
+     */
+    public ExpandableNotificationRow createBubble() throws Exception {
+        return createRow(PKG, UID, false /* isGroupSummary */, null /* groupKey */,
+                true /* isBubble */);
+    }
+
     private ExpandableNotificationRow createGroupSummary(String groupkey) throws Exception {
-        return createRow(PKG, UID, true /* isGroupSummary */, groupkey);
+        return createRow(PKG, UID, true /* isGroupSummary */, groupkey, false);
     }
 
     private ExpandableNotificationRow createGroupChild(String groupkey) throws Exception {
-        return createRow(PKG, UID, false /* isGroupSummary */, groupkey);
+        return createRow(PKG, UID, false /* isGroupSummary */, groupkey, false);
     }
 
     /**
@@ -146,6 +157,7 @@
      * @param uid uid used for creating a {@link StatusBarNotification}
      * @param isGroupSummary whether the notification row is a group summary
      * @param groupKey the group key for the notification group used across notifications
+     * @param isBubble
      * @return a row with that's either a standalone notification or a group notification if the
      *         groupKey is non-null
      * @throws Exception
@@ -154,10 +166,10 @@
             String pkg,
             int uid,
             boolean isGroupSummary,
-            @Nullable String groupKey)
+            @Nullable String groupKey, boolean isBubble)
             throws Exception {
         Notification notif = createNotification(isGroupSummary, groupKey);
-        return generateRow(notif, pkg, uid, 0 /* inflationFlags */);
+        return generateRow(notif, pkg, uid, 0 /* inflationFlags */, isBubble);
     }
 
     /**
@@ -202,7 +214,7 @@
             Notification notification,
             String pkg,
             int uid,
-            @InflationFlag int extraInflationFlags)
+            @InflationFlag int extraInflationFlags, boolean isBubble)
             throws Exception {
         LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(
                 mContext.LAYOUT_INFLATER_SERVICE);
@@ -232,6 +244,7 @@
         entry.channel = new NotificationChannel(
                 notification.getChannelId(), notification.getChannelId(), IMPORTANCE_DEFAULT);
         entry.channel.setBlockableSystem(true);
+        entry.setIsBubble(isBubble);
         row.setEntry(entry);
         row.getNotificationInflater().addInflationFlags(extraInflationFlags);
         NotificationInflaterTest.runThenWaitForInflation(