Move SharedPreferenceLogger to instrumentation package.

Bug: 30914916
Test: SettingsUnitTests and RunSettingsRoboTests

- Added interface to abstract logger
- Added test for SharePrefLogger
- Moved Existing tests for instrumentation to robotests.

Change-Id: I2b431ea4b0fd09d0f11389d8b9181448f08a52c5

src/com/android/settings/SettingsActivity.java

@@ -71,6 +71,7 @@ import com.android.settings.applications.UsageAccessDetails;
 import com.android.settings.applications.VrListenerSettings;
 import com.android.settings.applications.WriteSettingsDetails;
 import com.android.settings.bluetooth.BluetoothSettings;
+import com.android.settings.core.instrumentation.SharedPreferencesLogger;
 import com.android.settings.dashboard.DashboardContainerFragment;
 import com.android.settings.dashboard.SearchResultsSummary;
 import com.android.settings.datausage.DataUsageSummary;

src/com/android/settings/core/instrumentation/EventLogWriter.java

@@ -21,9 +21,9 @@ import android.content.Context;
 import com.android.internal.logging.MetricsLogger;
 
 /**
- * Pass-through Metrics logger for {@link MetricsLogger}.
+ * {@link LogWriter} that writes data to eventlog.
  */
-public class EventLogWriter {
+public class EventLogWriter implements LogWriter {
 
     public void visible(Context context, int category) {
         MetricsLogger.visible(context, category);

src/com/android/settings/core/instrumentation/LogWriter.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2016 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.settings.core.instrumentation;
+
+import android.content.Context;
+
+/**
+ * Generic log writer interface.
+ */
+public interface LogWriter {
+
+    /**
+     * Logs a visibility event when view becomes visible.
+     */
+    void visible(Context context, int category);
+
+    /**
+     * Logs a visibility event when view becomes hidden.
+     */
+    void hidden(Context context, int category);
+
+    /**
+     * Logs an user action.
+     */
+    void action(Context context, int category);
+
+    /**
+     * Logs an user action.
+     */
+    void action(Context context, int category, int value);
+
+    /**
+     * Logs an user action.
+     */
+    void action(Context context, int category, boolean value);
+
+    /**
+     * Logs an user action.
+     */
+    void action(Context context, int category, String pkg);
+
+    /**
+     * Logs a count.
+     */
+    void count(Context context, String name, int value);
+
+    /**
+     * Logs a histogram event.
+     */
+    void histogram(Context context, String name, int bucket);
+}

src/com/android/settings/core/instrumentation/MetricsFactory.java

@@ -16,11 +16,13 @@
 
 package com.android.settings.core.instrumentation;
 
+import android.support.annotation.VisibleForTesting;
+
 public class MetricsFactory {
 
     private static MetricsFactory sInstance;
 
-    private EventLogWriter mLogger;
+    private LogWriter mLogger;
 
     public static MetricsFactory get() {
         if (sInstance == null) {
@@ -29,10 +31,15 @@ public class MetricsFactory {
         return sInstance;
     }
 
-    public EventLogWriter getLogger() {
+    public LogWriter getLogger() {
         if (mLogger == null) {
             mLogger = new EventLogWriter();
         }
         return mLogger;
     }
+
+    @VisibleForTesting
+    void setLogger(LogWriter logger) {
+        mLogger = logger;
+    }
 }

src/com/android/settings/core/instrumentation/SharedPreferencesLogger.java

@@ -12,9 +12,7 @@
  * permissions and limitations under the License.
  */
 
-package com.android.settings;
-
-import com.android.internal.logging.MetricsLogger;
+package com.android.settings.core.instrumentation;
 
 import android.annotation.Nullable;
 import android.content.ComponentName;
@@ -23,7 +21,7 @@ import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.os.AsyncTask;
 import android.text.TextUtils;
-import android.util.Log;
+
 import com.android.internal.logging.MetricsProto.MetricsEvent;
 
 import java.util.Map;
@@ -33,10 +31,12 @@ public class SharedPreferencesLogger implements SharedPreferences {
 
     private final String mTag;
     private final Context mContext;
+    private final LogWriter mLogWriter;
 
     public SharedPreferencesLogger(Context context, String tag) {
         mContext = context;
         mTag = tag;
+        mLogWriter = MetricsFactory.get().getLogger();
     }
 
     @Override
@@ -95,12 +95,12 @@ public class SharedPreferencesLogger implements SharedPreferences {
     }
 
     private void logValue(String key, String value) {
-        MetricsLogger.count(mContext, mTag + "/" + key + "|" + value, 1);
+        mLogWriter.count(mContext, mTag + "/" + key + "|" + value, 1);
     }
 
     private void logPackageName(String key, String value) {
-        MetricsLogger.count(mContext, mTag + "/" + key, 1);
-        MetricsLogger.action(mContext, MetricsEvent.ACTION_GENERIC_PACKAGE,
+        mLogWriter.count(mContext, mTag + "/" + key, 1);
+        mLogWriter.action(mContext, MetricsEvent.ACTION_GENERIC_PACKAGE,
                 mTag + "/" + key + "|" + value);
     }
 

src/com/android/settings/core/instrumentation/VisibilityLoggerMixin.java

@@ -24,22 +24,22 @@ import android.content.Context;
 public class VisibilityLoggerMixin {
 
     private final Instrumentable mInstrumentable;
-    private final EventLogWriter mEventLogWriter;
+    private final LogWriter mLogWriter;
 
     public VisibilityLoggerMixin(Instrumentable instrumentable) {
         this(instrumentable, MetricsFactory.get().getLogger());
     }
 
-    public VisibilityLoggerMixin(Instrumentable instrumentable, EventLogWriter eventLogWriter) {
+    public VisibilityLoggerMixin(Instrumentable instrumentable, LogWriter logWriter) {
         mInstrumentable = instrumentable;
-        mEventLogWriter = eventLogWriter;
+        mLogWriter = logWriter;
     }
 
     public void onResume(Context context) {
-        mEventLogWriter.visible(context, mInstrumentable.getMetricsCategory());
+        mLogWriter.visible(context, mInstrumentable.getMetricsCategory());
     }
 
     public void onPause(Context context) {
-        mEventLogWriter.hidden(context, mInstrumentable.getMetricsCategory());
+        mLogWriter.hidden(context, mInstrumentable.getMetricsCategory());
     }
 }

tests/robotests/src/com/android/settings/core/instrumentation/MetricsFactoryTest.java

@@ -15,16 +15,17 @@
  */
 package com.android.settings.core.instrumentation;
 
-import android.support.test.filters.SmallTest;
-import android.support.test.runner.AndroidJUnit4;
+import com.android.settings.TestConfig;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
 
 import static org.junit.Assert.assertTrue;
 
-@RunWith(AndroidJUnit4.class)
-@SmallTest
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
 public class MetricsFactoryTest {
 
     @Test
@@ -37,8 +38,8 @@ public class MetricsFactoryTest {
     @Test
     public void factoryShouldCacheLogger() {
         MetricsFactory factory = MetricsFactory.get();
-        EventLogWriter logger1 = factory.getLogger();
-        EventLogWriter logger2 = factory.getLogger();
+        LogWriter logger1 = factory.getLogger();
+        LogWriter logger2 = factory.getLogger();
         assertTrue(logger1 == logger2);
     }
 }

tests/robotests/src/com/android/settings/core/instrumentation/SharedPreferenceLoggerTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 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.settings.core.instrumentation;
+
+import android.content.Context;
+
+import com.android.settings.TestConfig;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowApplication;
+
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.verify;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class SharedPreferenceLoggerTest {
+
+    private static final String TEST_TAG = "tag";
+    private static final String TEST_KEY = "key";
+
+    @Mock
+    private LogWriter mLogWriter;
+
+    private ShadowApplication mApplication;
+    private SharedPreferencesLogger mSharedPrefLogger;
+
+    @Before
+    public void init() {
+        MockitoAnnotations.initMocks(this);
+        mApplication = ShadowApplication.getInstance();
+        MetricsFactory.get().setLogger(mLogWriter);
+        mSharedPrefLogger = new SharedPreferencesLogger(
+                mApplication.getApplicationContext(), TEST_TAG);
+    }
+
+    @Test
+    public void putInt_shouldLogCount() {
+        mSharedPrefLogger.edit().putInt(TEST_KEY, 1);
+        verify(mLogWriter).count(any(Context.class), anyString(), anyInt());
+    }
+
+    @Test
+    public void putBoolean_shouldLogCount() {
+        mSharedPrefLogger.edit().putBoolean(TEST_KEY, true);
+        verify(mLogWriter).count(any(Context.class), anyString(), anyInt());
+    }
+
+    @Test
+    public void putLong_shouldLogCount() {
+        mSharedPrefLogger.edit().putLong(TEST_KEY, 1);
+        verify(mLogWriter).count(any(Context.class), anyString(), anyInt());
+    }
+
+    @Test
+    public void putFloat_shouldLogCount() {
+        mSharedPrefLogger.edit().putInt(TEST_KEY, 1);
+        verify(mLogWriter).count(any(Context.class), anyString(), anyInt());
+    }
+
+}

tests/robotests/src/com/android/settings/core/instrumentation/VisibilityLoggerMixinTest.java

@@ -16,22 +16,25 @@
 package com.android.settings.core.instrumentation;
 
 import android.content.Context;
-import android.support.test.filters.SmallTest;
-import android.support.test.runner.AndroidJUnit4;
+
+import com.android.settings.TestConfig;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
 
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 
-@RunWith(AndroidJUnit4.class)
-@SmallTest
+
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
 public class VisibilityLoggerMixinTest {
 
     @Mock