Merge "Add test for Settings#ACTION_NIGHT_DISPLAY_SETTINGS" into oc-dev

tests/unit/src/com/android/settings/display/NightDisplaySettingsActivityTest.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2017 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.display;
+
+import android.app.Instrumentation;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.provider.Settings;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+
+import com.android.settings.Settings.NightDisplaySettingsActivity;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class NightDisplaySettingsActivityTest {
+
+    private Context mTargetContext;
+
+    @Before
+    public void setUp() throws Exception {
+        Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
+        mTargetContext = instrumentation.getTargetContext();
+    }
+
+    @Test
+    public void nightDisplaySettingsIntent_resolvesCorrectly() {
+        final boolean nightDisplayAvailable = mTargetContext.getResources().getBoolean(
+                com.android.internal.R.bool.config_nightDisplayAvailable);
+        final PackageManager pm = mTargetContext.getPackageManager();
+        final Intent intent = new Intent(Settings.ACTION_NIGHT_DISPLAY_SETTINGS);
+        final ResolveInfo ri = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
+
+        if (nightDisplayAvailable) {
+            Assert.assertNotNull("No activity for " + Settings.ACTION_NIGHT_DISPLAY_SETTINGS, ri);
+            Assert.assertEquals(mTargetContext.getPackageName(), ri.activityInfo.packageName);
+            Assert.assertEquals(NightDisplaySettingsActivity.class.getName(),
+                    ri.activityInfo.name);
+        } else {
+            Assert.assertNull("Should have no activity for "
+                    + Settings.ACTION_NIGHT_DISPLAY_SETTINGS, ri);
+        }
+    }
+
+}