add some ui testing cases

app/build.gradle

@@ -39,32 +39,55 @@ ext {
     zxingLibVersion = '3.3.0'
     datetimePickerVersion = '3.1.3'
     circleimageviewVersion = '2.1.0'
+    espressoVersion = '2.2.2'
+    runnerRulesVersion = '0.5'
+    junitVersion = '4.12'
+    mockitoVersion = '2.0.2-beta'
 }
 
 dependencies {
     compile fileTree(include: ['*.jar'], dir: 'libs')
-    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
-        exclude group: 'com.android.support', module: 'support-annotations'
-    })
+
     // Support libraries
-    compile "com.android.support:appcompat-v7:${supportLibVersion}"
-    compile "com.android.support:support-v4:${supportLibVersion}"
-    compile "com.android.support:design:${supportLibVersion}"
-    compile "com.android.support:cardview-v7:${supportLibVersion}"
-    compile "com.android.support:preference-v14:${supportLibVersion}"
-    compile "com.android.support:customtabs:${supportLibVersion}"
+    compile "com.android.support:appcompat-v7:$supportLibVersion"
+    compile "com.android.support:support-v4:$supportLibVersion"
+    compile "com.android.support:design:$supportLibVersion"
+    compile "com.android.support:cardview-v7:$supportLibVersion"
+    compile "com.android.support:preference-v14:$supportLibVersion"
+    compile "com.android.support:customtabs:$supportLibVersion"
+
     // ReactiveX series
-    compile "io.reactivex.rxjava2:rxjava:${rxjavaVersion}"
-    compile "io.reactivex.rxjava2:rxandroid:${rxjavaVersion}"
+    compile "io.reactivex.rxjava2:rxjava:$rxjavaVersion"
+    compile "io.reactivex.rxjava2:rxandroid:$rxjavaVersion"
     // Retrofit series
-    compile "com.squareup.retrofit2:retrofit:${retrofitVersion}"
-    compile "com.squareup.retrofit2:adapter-rxjava2:${retrofitVersion}"
-    compile "com.squareup.retrofit2:converter-gson:${retrofitVersion}"
+    compile "com.squareup.retrofit2:retrofit:$retrofitVersion"
+    compile "com.squareup.retrofit2:adapter-rxjava2:$retrofitVersion"
+    compile "com.squareup.retrofit2:converter-gson:$retrofitVersion"
     // Zxing
-    compile "com.google.zxing:core:${zxingLibVersion}"
+    compile "com.google.zxing:core:$zxingLibVersion"
     // Material date time picker
-    compile "com.wdullaer:materialdatetimepicker:${datetimePickerVersion}"
+    compile "com.wdullaer:materialdatetimepicker:$datetimePickerVersion"
     // CircleImageView
-    compile "de.hdodenhof:circleimageview:${circleimageviewVersion}"
-    testCompile 'junit:junit:4.12'
+    compile "de.hdodenhof:circleimageview:$circleimageviewVersion"
+
+    testCompile "junit:junit:$junitVersion"
+    testCompile "org.mockito:mockito-all:$mockitoVersion"
+
+    // Mockito
+    androidTestCompile "org.mockito:mockito-core:$mockitoVersion"
+
+    // Espresso
+    androidTestCompile "com.android.support:support-annotations:$supportLibVersion"
+    androidTestCompile "com.android.support.test.espresso:espresso-core:$espressoVersion"
+    androidTestCompile("com.android.support.test.espresso:espresso-contrib:$espressoVersion") {
+        exclude group: 'com.android.support'
+    }
+    androidTestCompile("com.android.support.test.espresso:espresso-intents:$espressoVersion") {
+        exclude group: 'com.android.support'
+    }
+
+    // Runner and rules
+    androidTestCompile "com.android.support.test:runner:$runnerRulesVersion"
+    androidTestCompile "com.android.support.test:rules:$runnerRulesVersion"
+
 }

app/src/androidTest/java/io/github/marktony/espresso/onboarding/OnboardingScreenTest.java

@@ -0,0 +1,33 @@
+package io.github.marktony.espresso.onboarding;
+
+import android.support.test.filters.SmallTest;
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Rule;
+import org.junit.runner.RunWith;
+
+import io.github.marktony.espresso.ui.onboarding.OnboardingActivity;
+
+/**
+ * Created by lizhaotailang on 2017/5/13.
+ * Tests for the {@link android.support.v4.view.ViewPager} and
+ * other layout components in {@link OnboardingActivity}.
+ */
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class OnboardingScreenTest {
+
+    /**
+     * {@link ActivityTestRule} is a JUnit {@link Rule @Rule} to launch your activity under test.
+     *
+     * <p>
+     * Rules are interceptors which are executed for each test method and are important building
+     * blocks of Junit tests.
+     */
+    @Rule
+    ActivityTestRule<OnboardingActivity> mOnboardingActivityTestRule
+            = new ActivityTestRule<>(OnboardingActivity.class);
+
+}

app/src/androidTest/java/io/github/marktony/espresso/packages/AppNavigationTest.java

@@ -0,0 +1,167 @@
+package io.github.marktony.espresso.packages;
+
+import android.graphics.drawable.ColorDrawable;
+import android.support.test.filters.LargeTest;
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.runner.AndroidJUnit4;
+import android.support.v7.widget.Toolbar;
+import android.view.Gravity;
+import android.view.View;
+
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeMatcher;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import io.github.marktony.espresso.R;
+import io.github.marktony.espresso.mvp.packages.MainActivity;
+
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.contrib.DrawerActions.open;
+import static android.support.test.espresso.contrib.DrawerMatchers.isClosed;
+import static android.support.test.espresso.contrib.NavigationViewActions.navigateTo;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static android.support.test.espresso.matcher.ViewMatchers.withParent;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+import static org.hamcrest.Matchers.allOf;
+import static org.hamcrest.Matchers.not;
+
+/**
+ * Created by lizhaotailang on 2017/5/12.
+ * Tests for the {@link android.support.v4.widget.DrawerLayout} layout
+ * component in {@link MainActivity} which manages the navigation
+ * within the app.
+ */
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class AppNavigationTest {
+
+    /**
+     * {@link ActivityTestRule} is a JUnit {@link Rule @Rule} to launch your activity under test.
+     *
+     * <p>
+     * Rules are interceptors which are executed for each test method and are important building
+     * blocks of Junit tests.
+     */
+    @Rule
+    public ActivityTestRule<MainActivity> mainActivityActivityTestRule
+            = new ActivityTestRule<>(MainActivity.class);
+
+    @Test
+    public void clickOnNavigationDrawerItem_ShowsPackagesScreen() {
+        // Open drawer to click on navigation.
+        onView(withId(R.id.drawer_layout))
+                .check(matches(isClosed(Gravity.LEFT))) // Left drawer should be closed.
+                .perform(open()); // Open the drawer.
+
+        // Start packages screen
+        onView(withId(R.id.nav_view))
+                .perform(navigateTo(R.id.nav_home));
+
+        // Check that packages fragment was opened.
+        onView(withId(R.id.fragment_packages))
+                .check(matches(isDisplayed()));
+
+    }
+
+    @Test
+    public void clickOnNavigationDrawerItem_ShowsCompaniesScreen() {
+        // Open drawer to click on navigation.
+        onView(withId(R.id.drawer_layout))
+                .check(matches(isClosed(Gravity.LEFT))) // Left drawer should be closed.
+                .perform(open()); // Open the drawer.
+
+        // Start companies screen
+        onView(withId(R.id.nav_view))
+                .perform(navigateTo(R.id.nav_companies));
+
+        // Check that companies fragment was opened.
+        onView(withId(R.id.recyclerViewCompaniesList))
+                .check(matches(isDisplayed()));
+    }
+
+    @Test
+    public void clickOnNavigationDrawerItem_ShowsSettingsScreen() {
+        // Open drawer to click on navigation.
+        onView(withId(R.id.drawer_layout))
+                .check(matches(isClosed(Gravity.LEFT)))
+                .perform(open());
+
+        // Start settings screen.
+        onView(withId(R.id.nav_view))
+                .perform(navigateTo(R.id.nav_settings));
+
+        // Check that title is correct.
+        onView(allOf(withParent(withId(R.id.toolbar)),
+                withText(R.string.nav_settings)))
+                .check(matches(isDisplayed()));
+    }
+
+    @Test
+    public void clickOnNavigationDrawerItem_ShowsAboutScreen() {
+        // Open drawer to click on navigation.
+        onView(withId(R.id.drawer_layout))
+                .check(matches(isClosed(Gravity.LEFT)))
+                .perform(open());
+
+        // Start about screen.
+        onView(withId(R.id.nav_view))
+                .perform(navigateTo(R.id.nav_about));
+
+        // Check that title is correct.
+        onView(allOf(withParent(withId(R.id.toolbar)),
+                withText(R.string.nav_about)))
+                .check(matches(isDisplayed()));
+    }
+
+    @Test
+    public void clickOnNavigationDrawerItem_ChangeTheme() {
+        // Open drawer to click on navigation.
+        onView(withId(R.id.drawer_layout))
+                .check(matches(isClosed(Gravity.LEFT)))
+                .perform(open());
+
+        // Get the color value of toolbar in package fragment.
+        Toolbar toolbar = (Toolbar) mainActivityActivityTestRule.getActivity().findViewById(R.id.toolbar);
+        int color = ((ColorDrawable) toolbar.getBackground()).getColor();
+
+        // Click the navigate item of changing theme.
+        onView(withId(R.id.nav_view))
+                .perform(navigateTo(R.id.nav_switch_theme));
+
+        // Compare the current color with the old one.
+        // If not match, the action of changing theme is successful.
+        onView(withId(R.id.toolbar))
+                .check(matches(not(withBackgroundColor(color))));
+
+    }
+
+    /**
+     * A customized {@link Matcher} for testing that
+     * if one color match the background color of current view.
+     * @param backgroundColor A color int value.
+     *
+     * @return Match or not.
+     */
+    public static Matcher<View> withBackgroundColor(final int backgroundColor) {
+        return new TypeSafeMatcher<View>() {
+
+            @Override
+            public boolean matchesSafely(View view) {
+                int color = ((ColorDrawable) view.getBackground().getCurrent()).getColor();
+                return color == backgroundColor;
+            }
+
+            @Override
+            public void describeTo(Description description) {
+                description.appendText("with background color value: " + backgroundColor);
+            }
+        };
+    }
+
+}

app/src/androidTest/java/io/github/marktony/espresso/packages/PackagesScreenTest.java

@@ -0,0 +1,26 @@
+package io.github.marktony.espresso.packages;
+
+import android.support.test.filters.LargeTest;
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Rule;
+import org.junit.runner.RunWith;
+
+import io.github.marktony.espresso.mvp.packages.MainActivity;
+
+/**
+ * Created by lizhaotailang on 2017/5/12.
+ */
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class PackagesScreenTest {
+
+    @Rule
+    public ActivityTestRule<MainActivity> mainActivityActivityTestRule
+            = new ActivityTestRule<>(MainActivity.class);
+
+
+
+}

app/src/main/res/layout/fragment_packages.xml

@@ -19,7 +19,8 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    android:id="@+id/fragment_packages">
 
     <android.support.design.widget.CoordinatorLayout
         android:layout_width="match_parent"

app/src/main/res/xml/settings_prefs.xml

@@ -16,7 +16,8 @@
   -->
 
 <PreferenceScreen
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/preferences_settings">
 
     <PreferenceCategory
         android:title="@string/notifications">