Update USb preference controller to use the new summary texts.

- since the choose usb mode dialog and the preference summary use
separate strings now, the two classes can have their own handling
for getting the title/summary text and hence revert the earlier
change that move the setTitle() and setSummary() from the activity
to controller
- only show summary for the option for "supply power", and don't set
summary for all other options
- update the controller to use the new summary text.
- update test correspondingly.

Change-Id: Ie56eb33ba24262e6f3a2259e4ee5ad6f3bfb8061
Fix: 36234108
Test: make RunSettingsRoboTests

tests/robotests/src/com/android/settings/deviceinfo/UsbModeChooserActivityTest.java

@@ -0,0 +1,94 @@
+/*
+ * 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.deviceinfo;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+
+import android.widget.TextView;
+import com.android.settings.R;
+import com.android.settings.SettingsRobolectricTestRunner;
+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.annotation.Config;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class UsbModeChooserActivityTest {
+
+    @Mock
+    private TextView mTextView;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+    }
+
+    @Test
+    public void updateSummary_chargeDevice_shouldNotSetSummary() {
+        UsbModeChooserActivity.updateSummary(mTextView, UsbModeChooserActivity.DEFAULT_MODES[0]);
+        verify(mTextView, never()).setText(anyInt());
+    }
+
+    @Test
+    public void updateSummary_supplyPower_shouldSetSummary() {
+        UsbModeChooserActivity.updateSummary(mTextView, UsbModeChooserActivity.DEFAULT_MODES[1]);
+        verify(mTextView).setText(R.string.usb_use_power_only_desc);
+    }
+
+    @Test
+    public void updateSummary_transferFiles_shouldNotSetSummary() {
+        UsbModeChooserActivity.updateSummary(mTextView, UsbModeChooserActivity.DEFAULT_MODES[2]);
+        verify(mTextView, never()).setText(anyInt());
+    }
+
+    @Test
+    public void updateSummary_transferPhoto_shouldNotSetSummary() {
+        UsbModeChooserActivity.updateSummary(mTextView, UsbModeChooserActivity.DEFAULT_MODES[3]);
+        verify(mTextView, never()).setText(anyInt());
+    }
+
+    @Test
+    public void updateSummary_MIDI_shouldNotSetSummary() {
+        UsbModeChooserActivity.updateSummary(mTextView, UsbModeChooserActivity.DEFAULT_MODES[4]);
+        verify(mTextView, never()).setText(anyInt());
+    }
+
+    @Test
+    public void getTitle_shouldReturnCorrectTitle() {
+        assertThat(UsbModeChooserActivity.getTitle(UsbModeChooserActivity.DEFAULT_MODES[0]))
+                .isEqualTo(R.string.usb_use_charging_only);
+
+        assertThat(UsbModeChooserActivity.getTitle(UsbModeChooserActivity.DEFAULT_MODES[1]))
+                .isEqualTo(R.string.usb_use_power_only);
+
+        assertThat(UsbModeChooserActivity.getTitle(UsbModeChooserActivity.DEFAULT_MODES[2]))
+                .isEqualTo(R.string.usb_use_file_transfers);
+
+        assertThat(UsbModeChooserActivity.getTitle(UsbModeChooserActivity.DEFAULT_MODES[3]))
+                .isEqualTo(R.string.usb_use_photo_transfers);
+
+        assertThat(UsbModeChooserActivity.getTitle(UsbModeChooserActivity.DEFAULT_MODES[4]))
+                .isEqualTo(R.string.usb_use_MIDI);
+    }
+
+}