Display a hardware info dialog when click model number.

Change-Id: I28eeb3e5c3ed290d4e03e0f3989adde0b966bede
Fix: 35851000
Test: make RunSettingsRoboTests

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

@@ -0,0 +1,61 @@
+/*
+ * 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 android.app.Activity;
+import android.os.SystemProperties;
+import android.view.View;
+
+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.robolectric.Robolectric;
+import org.robolectric.annotation.Config;
+
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class HardwareInfoDialogFragmentTest {
+
+    private Activity mActivity;
+
+    @Before
+    public void setUp() {
+        mActivity = Robolectric.setupActivity(Activity.class);
+    }
+
+    @Test
+    public void display_shouldShowHardwareRevision() {
+        final String TEST_HARDWARE_REV = "123";
+        SystemProperties.set("ro.boot.hardware.revision", TEST_HARDWARE_REV);
+
+        final HardwareInfoDialogFragment fragment = spy(HardwareInfoDialogFragment.newInstance());
+        fragment.show(mActivity.getFragmentManager(), HardwareInfoDialogFragment.TAG);
+
+        verify(fragment).setText(
+                any(View.class), eq(R.id.hardware_rev_label), eq(R.id.hardware_rev_value),
+                eq(TEST_HARDWARE_REV));
+    }
+}