3 files changed, 94 insertions, 50 deletions
diff --git a/updater_sample/tests/Android.mk b/updater_sample/tests/Android.mk
index a1a4664dc..9aec372e3 100644
--- a/updater_sample/tests/Android.mk
+++ b/updater_sample/tests/Android.mk
@@ -23,9 +23,9 @@ LOCAL_MODULE_TAGS := tests
 LOCAL_JAVA_LIBRARIES := \
     android.test.base.stubs \
     android.test.runner.stubs \
-    guava \
+    guava
+LOCAL_STATIC_JAVA_LIBRARIES := android-support-test \
     mockito-target-minus-junit4
-LOCAL_STATIC_JAVA_LIBRARIES := android-support-test
 LOCAL_INSTRUMENTATION_FOR := SystemUpdaterSample
 LOCAL_PROGUARD_ENABLED := disabled
 
diff --git a/updater_sample/tests/src/com/example/android/systemupdatersample/UpdateManagerTest.java b/updater_sample/tests/src/com/example/android/systemupdatersample/UpdateManagerTest.java
new file mode 100644
index 000000000..0657a5eb6
--- /dev/null
+++ b/updater_sample/tests/src/com/example/android/systemupdatersample/UpdateManagerTest.java
@@ -0,0 +1,92 @@
+/*
+ * 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.example.android.systemupdatersample;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.os.UpdateEngine;
+import android.os.UpdateEngineCallback;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+
+import com.example.android.systemupdatersample.util.PayloadSpecs;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+
+import java.util.function.IntConsumer;
+
+/**
+ * Tests for {@link UpdateManager}
+ */
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class UpdateManagerTest {
+
+    @Rule
+    public MockitoRule mockito = MockitoJUnit.rule();
+
+    @Mock
+    private UpdateEngine mUpdateEngine;
+    @Mock
+    private PayloadSpecs mPayloadSpecs;
+    private UpdateManager mUpdateManager;
+
+    @Before
+    public void setUp() {
+        mUpdateManager = new UpdateManager(mUpdateEngine, mPayloadSpecs);
+    }
+
+    @Test
+    public void storesProgressThenInvokesCallbacks() {
+        IntConsumer statusUpdateCallback = mock(IntConsumer.class);
+
+        // When UpdateManager is bound to update_engine, it passes
+        // UpdateManager.UpdateEngineCallbackImpl as a callback to update_engine.
+        when(mUpdateEngine.bind(any(UpdateEngineCallback.class))).thenAnswer(answer -> {
+            UpdateEngineCallback callback = answer.getArgument(0);
+            callback.onStatusUpdate(/*engineStatus*/ 4, /*engineProgress*/ 0.2f);
+            return null;
+        });
+
+        mUpdateManager.setOnEngineStatusUpdateCallback(statusUpdateCallback);
+
+        // Making sure that manager.getProgress() returns correct progress
+        // in "onEngineStatusUpdate" callback.
+        doAnswer(answer -> {
+            assertEquals(0.2f, mUpdateManager.getProgress(), 1E-5);
+            return null;
+        }).when(statusUpdateCallback).accept(anyInt());
+
+        mUpdateManager.bind();
+
+        verify(statusUpdateCallback, times(1)).accept(4);
+    }
+
+}
diff --git a/updater_sample/tests/src/com/example/android/systemupdatersample/ui/MainActivityTest.java b/updater_sample/tests/src/com/example/android/systemupdatersample/ui/MainActivityTest.java
deleted file mode 100644
index 01014168a..000000000
--- a/updater_sample/tests/src/com/example/android/systemupdatersample/ui/MainActivityTest.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * 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.example.android.systemupdatersample.ui;
-
-import static org.junit.Assert.assertNotNull;
-
-import android.support.test.filters.MediumTest;
-import android.support.test.rule.ActivityTestRule;
-import android.support.test.runner.AndroidJUnit4;
-
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-/**
- * Make sure that the main launcher activity opens up properly, which will be
- * verified by {@link #activityLaunches}.
- */
-@RunWith(AndroidJUnit4.class)
-@MediumTest
-public class MainActivityTest {
-
-    @Rule
-    public final ActivityTestRule<MainActivity> mActivityRule =
-            new ActivityTestRule<>(MainActivity.class);
-
-    /**
-     * Verifies that the activity under test can be launched.
-     */
-    @Test
-    public void activityLaunches() {
-        assertNotNull(mActivityRule.getActivity());
-    }
-}