Disable AccelerometerListener when display is off

Unregister the accelerometer listener when the screen is off
to reduce power consumption.

Slight refactor of component constructors to facilitate testing.

Add test.

Bug: 23498050
Change-Id: If1971a39e8a418253f6611116c855e3c6cf81b93

1 files changed, 64 insertions, 0 deletions

diff --git a/tests/src/com/android/incallui/ProximitySensorTest.java b/tests/src/com/android/incallui/ProximitySensorTest.java
new file mode 100644
index 00000000..d7b2f64b
--- /dev/null
+++ b/tests/src/com/android/incallui/ProximitySensorTest.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2015 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.incallui;
+
+import static org.mockito.Mockito.anyBoolean;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.test.InstrumentationTestCase;
+
+import com.android.incallui.InCallPresenter.InCallState;
+
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+
+public class ProximitySensorTest extends InstrumentationTestCase {
+    @Mock private AccelerometerListener mAccelerometerListener;
+    private MockCallListWrapper mCallList;
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        System.setProperty("dexmaker.dexcache",
+                getInstrumentation().getTargetContext().getCacheDir().getPath());
+        MockitoAnnotations.initMocks(this);
+        mCallList = new MockCallListWrapper();
+    }
+
+    public void testAccelerometerBehaviorOnDisplayChange() {
+        final ProximitySensor proximitySensor =
+                new ProximitySensor(
+                        getInstrumentation().getContext(),
+                        new AudioModeProvider(),
+                        mAccelerometerListener);
+        verify(mAccelerometerListener, never()).enable(anyBoolean());
+        proximitySensor.onStateChange(null, InCallState.OUTGOING, mCallList.getCallList());
+        verify(mAccelerometerListener).enable(true);
+        verify(mAccelerometerListener, never()).enable(false);
+
+        proximitySensor.onDisplayStateChanged(false);
+        verify(mAccelerometerListener).enable(true);
+        verify(mAccelerometerListener).enable(false);
+
+        proximitySensor.onDisplayStateChanged(true);
+        verify(mAccelerometerListener, times(2)).enable(true);
+        verify(mAccelerometerListener).enable(false);
+    }
+}