Add account picker to Support Tab

Add a spinner to select the account for user.

Bug: 32249920
Test: make RunSettingsRoboTests
Change-Id: I372d16ec5ec3230f5f2994d79f4fd27085092236

tests/robotests/src/com/android/settings/dashboard/SupportItemAdapterTest.java

@@ -0,0 +1,139 @@
+/*
+ * 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.dashboard;
+
+import android.accounts.Account;
+import android.app.Activity;
+import android.content.Intent;
+import android.provider.Settings;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.Spinner;
+import android.widget.SpinnerAdapter;
+import com.android.settings.TestConfig;
+import com.android.settings.core.instrumentation.MetricsFeatureProvider;
+import com.android.settings.overlay.SupportFeatureProvider;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import com.android.settings.R;
+import org.robolectric.shadows.ShadowActivity;
+
+import static org.mockito.Mockito.verify;
+import static org.robolectric.Shadows.shadowOf;
+import static org.mockito.Mockito.when;
+import static com.google.common.truth.Truth.assertThat;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class SupportItemAdapterTest {
+    private static final String ACCOUNT_TYPE = "com.google";
+    private final Account USER_1 = new Account("user1", ACCOUNT_TYPE);
+    private final Account USER_2 = new Account("user2", ACCOUNT_TYPE);
+    private final Account TWO_ACCOUNTS[] = {USER_1, USER_2};
+    private final Account ONE_ACCOUNT[] = {USER_1};
+
+    private ShadowActivity mShadowActivity;
+    private Activity mActivity;
+    private SupportItemAdapter mSupportItemAdapter;
+    private SupportItemAdapter.ViewHolder mViewHolder;
+    @Mock
+    private SupportFeatureProvider mSupportFeatureProvider;
+    @Mock
+    private MetricsFeatureProvider mMetricsFeatureProvider;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mActivity = Robolectric.setupActivity(Activity.class);
+        mShadowActivity = shadowOf(mActivity);
+
+        final View itemView = LayoutInflater.from(mActivity).inflate(
+                R.layout.support_escalation_options, null);
+        mViewHolder = new SupportItemAdapter.ViewHolder(itemView);
+
+        // Mock this to prevent crash in testing
+        when(mSupportFeatureProvider.getAccountLoginIntent()).thenReturn(
+                new Intent(Settings.ACTION_ADD_ACCOUNT));
+    }
+
+    @Test
+    public void testBindAccountPicker_TwoAccounts_ShouldHaveTwoAccounts() {
+        testBindAccountPickerInner(mViewHolder, TWO_ACCOUNTS);
+    }
+
+    @Test
+    public void testBindAccountPicker_OneAccount_ShouldHaveOneAccount() {
+        testBindAccountPickerInner(mViewHolder, ONE_ACCOUNT);
+    }
+
+    @Test
+    public void testOnSpinnerItemClick_AddAccountClicked_AccountLoginIntentInvoked() {
+        bindAccountPickerInner(mViewHolder, TWO_ACCOUNTS);
+
+        final Spinner spinner = (Spinner) mViewHolder.itemView.findViewById(R.id.account_spinner);
+        spinner.setSelection(TWO_ACCOUNTS.length);
+
+        Robolectric.flushForegroundThreadScheduler();
+
+        verify(mSupportFeatureProvider).getAccountLoginIntent();
+    }
+
+    /**
+     * Check after {@link SupportItemAdapter#bindAccountPicker(SupportItemAdapter.ViewHolder)} is
+     * invoked, whether the spinner in {@paramref viewHolder} has all the data from {@paramref
+     * accounts}
+     *
+     * @param viewHolder holds the view that contains the spinner to test
+     * @param accounts holds the accounts info to be showed in spinner.
+     */
+    private void testBindAccountPickerInner(SupportItemAdapter.ViewHolder viewHolder,
+            Account accounts[]) {
+        bindAccountPickerInner(viewHolder, accounts);
+
+        final Spinner spinner = (Spinner) viewHolder.itemView.findViewById(R.id.account_spinner);
+        final SpinnerAdapter adapter = spinner.getAdapter();
+
+        // Contains "Add account" option, so should be 'count+1'
+        assertThat(adapter.getCount()).isEqualTo(accounts.length + 1);
+        for (int i = 0; i < accounts.length; i++) {
+            assertThat(adapter.getItem(i)).isEqualTo(accounts[i].name);
+        }
+    }
+
+    /**
+     * Create {@link SupportItemAdapter} and bind the account picker view into
+     * {@paramref viewholder}
+     *
+     * @param viewHolder holds the view that contains the spinner to test
+     * @param accounts holds the accounts info to be showed in spinner.
+     */
+    private void bindAccountPickerInner(SupportItemAdapter.ViewHolder viewHolder,
+            Account accounts[]) {
+        when(mSupportFeatureProvider.getSupportEligibleAccounts(mActivity)).thenReturn(accounts);
+        mSupportItemAdapter = new SupportItemAdapter(mActivity, null, mSupportFeatureProvider,
+                mMetricsFeatureProvider, null);
+
+        mSupportItemAdapter.bindAccountPicker(viewHolder);
+    }
+
+}