Filter external setting intents using IA_SETTING keyword.

Also add test for CategoryKey

Bug: 32382487
Bug: 32460089
Test: make RunSettingsLibRoboTests
Change-Id: I0ed6278344a545b5fc952f5811322857382e4b60

packages/SettingsLib/tests/robotests/readme.md

@@ -0,0 +1,6 @@
+Unit test suite for SettingsLib using Robolectric.
+
+```
+$ croot
+$ make RunSettingsLibRoboTests -j40
+```

packages/SettingsLib/tests/robotests/src/com/android/settingslib/drawer/CategoryKeyTest.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.settingslib.drawer;
+
+import android.util.ArraySet;
+
+import com.android.settingslib.TestConfig;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+
+import java.util.Set;
+
+import static com.google.common.truth.Truth.assertThat;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class CategoryKeyTest {
+
+    @Test
+    public void testKeyCompatMap_allOldCategoryKeyAreMapped() {
+        assertThat(CategoryKey.KEY_COMPAT_MAP.size()).isEqualTo(4);
+    }
+
+    @Test
+    public void removingAnyKeyBreaksCompiler() {
+        // The keys in this test can be added but cannot be removed. Removing any key will remove
+        // categories from Settings app. Bad things will happen.
+        final Set<String> allKeys = new ArraySet<>();
+
+        // DO NOT REMOVE ANYTHING BELOW
+        allKeys.add(CategoryKey.CATEGORY_HOMEPAGE);
+        allKeys.add(CategoryKey.CATEGORY_DEVICE);
+        allKeys.add(CategoryKey.CATEGORY_APPS);
+        allKeys.add(CategoryKey.CATEGORY_APPS_DEFAULT);
+        allKeys.add(CategoryKey.CATEGORY_BATTERY);
+        allKeys.add(CategoryKey.CATEGORY_DISPLAY);
+        allKeys.add(CategoryKey.CATEGORY_SOUND);
+        allKeys.add(CategoryKey.CATEGORY_STORAGE);
+        allKeys.add(CategoryKey.CATEGORY_SECURITY);
+        allKeys.add(CategoryKey.CATEGORY_ACCOUNT);
+        allKeys.add(CategoryKey.CATEGORY_SYSTEM);
+        // DO NOT REMOVE ANYTHING ABOVE
+
+        assertThat(allKeys.size()).isEqualTo(11);
+    }
+
+}