Open personal settings tab when launching homepage

Change-Id: I341e1a128fda7db8f953f9a0800050cc007554c5
Fixes: 114441682
Test: manual/robotest

tests/robotests/src/com/android/settings/homepage/SettingsHomepageActivityTest.java

@@ -0,0 +1,57 @@
+/*
+ * 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.android.settings.homepage;
+
+import static com.android.settings.homepage.SettingsHomepageActivity.PERSONAL_SETTINGS_TAG;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+import android.util.FeatureFlagUtils;
+
+import androidx.fragment.app.Fragment;
+
+import com.android.settings.core.FeatureFlags;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.Robolectric;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class SettingsHomepageActivityTest {
+
+    private Context mContext;
+    private SettingsHomepageActivity mActivity;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        FeatureFlagUtils.setEnabled(mContext, FeatureFlags.DYNAMIC_HOMEPAGE, true);
+    }
+
+    @Test
+    public void launchHomepage_shouldOpenPersonalSettings() {
+        mActivity = Robolectric.setupActivity(SettingsHomepageActivity.class);
+        final Fragment fragment = mActivity.getSupportFragmentManager()
+                .findFragmentByTag(PERSONAL_SETTINGS_TAG);
+
+        assertThat(fragment).isInstanceOf(PersonalSettingsFragment.class);
+    }
+}