Merge "Create Espresso test class for WifiSettings." into oc-dev

am: 8b06cbd3a9

Change-Id: Ia26a458def122f40a162a77a6387e5d22c8d4241

tests/app/src/com/android/settings/wifi/WifiSettingsUiTest.java

@@ -0,0 +1,74 @@
+/*
+ * 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.wifi;
+
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.action.ViewActions.click;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+
+import android.app.Instrumentation;
+import android.content.Context;
+import android.content.Intent;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.runner.AndroidJUnit4;
+
+import com.android.settings.R;
+import com.android.settings.Settings.WifiSettingsActivity;
+import com.android.settingslib.wifi.WifiTracker;
+import com.android.settingslib.wifi.WifiTrackerFactory;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+@RunWith(AndroidJUnit4.class)
+public class WifiSettingsUiTest {
+
+    // TODO(sghuman): Investigate why resource ids are not resolving correctly in the test apk,
+    // then remove this manual string entry
+    private static final String WIFI_PREFERENCES = "Wi\\u2011Fi preferences";
+
+    @Mock private WifiTracker mockWifiTracker;
+
+    @Rule
+    public ActivityTestRule<WifiSettingsActivity> mActivityRule =
+            new ActivityTestRule<>(WifiSettingsActivity.class, true);
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        WifiTrackerFactory.setTestingWifiTracker(mockWifiTracker);
+    }
+
+    private void launchActivity() {
+        mActivityRule.launchActivity(new Intent("android.settings.WIFI_SETTINGS"));
+    }
+
+    @Test
+    public void launchActivityShouldSucceed() {
+        launchActivity();
+    }
+
+    @Test
+    public void shouldShowWifiPreferences() {
+        launchActivity();
+        onView(withText(WIFI_PREFERENCES)).perform(click());
+    }
+}