Add functional Play Store helper tests.

Change-Id: Ifd2c624546a68eeea59799a944886e36ecbde402
diff --git a/tests/functional/app-helper/src/android/platform/test/helpers/tests/PlayStoreHelperTest.java b/tests/functional/app-helper/src/android/platform/test/helpers/tests/PlayStoreHelperTest.java
new file mode 100644
index 0000000..ac83250
--- /dev/null
+++ b/tests/functional/app-helper/src/android/platform/test/helpers/tests/PlayStoreHelperTest.java
@@ -0,0 +1,93 @@
+/*
+ * 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 android.platform.test.helpers.tests;
+
+import android.platform.test.helpers.PlayStoreHelperImpl;
+import android.platform.test.helpers.IStandardAppHelper;
+import android.support.test.InstrumentationRegistry;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import junit.framework.Assert;
+
+public class PlayStoreHelperTest extends BaseHelperTest {
+    private PlayStoreHelperImpl mHelper;
+
+    public PlayStoreHelperTest () {
+        mHelper = new PlayStoreHelperImpl(InstrumentationRegistry.getInstrumentation());
+    }
+
+    @Override
+    protected IStandardAppHelper getHelper() {
+        return mHelper;
+    }
+
+    @Before
+    public void before() {
+        mHelper.open();
+    }
+
+    @After
+    public void after() {
+        mHelper.exit();
+    }
+
+    @Test
+    public void testDismissInitialDialogs() {
+        mHelper.dismissInitialDialogs();
+    }
+
+    @Test
+    public void testDoSearch() {
+        mHelper.dismissInitialDialogs();
+        mHelper.doSearch("pokemon go");
+    }
+
+    @Test
+    public void testSelectFirstResult() {
+        mHelper.dismissInitialDialogs();
+        mHelper.doSearch("translate");
+        mHelper.selectFirstResult();
+    }
+
+    @Test
+    public void testIsAppInstalled_False() {
+        mHelper.dismissInitialDialogs();
+        mHelper.doSearch("pokemon go");
+        mHelper.selectFirstResult();
+        Assert.assertFalse("Search result was installed.", mHelper.isAppInstalled());
+    }
+
+    @Test
+    public void testIsAppInstalled_True() {
+        mHelper.dismissInitialDialogs();
+        mHelper.doSearch("youtube");
+        mHelper.selectFirstResult();
+        Assert.assertTrue("Search result was not installed.", mHelper.isAppInstalled());
+    }
+
+    @Test
+    public void testInstallApp() {
+        mHelper.dismissInitialDialogs();
+        mHelper.doSearch("subway surfers");
+        mHelper.selectFirstResult();
+        mHelper.installApp();
+    }
+}