Add integration tests for Datastore quickstart.

bigquery/cloud-client/pom.xml

@@ -50,7 +50,7 @@
     <dependency>
       <groupId>com.google.truth</groupId>
       <artifactId>truth</artifactId>
-      <version>0.29</version>
+      <version>0.30</version>
       <scope>test</scope>
     </dependency>
   </dependencies>

datastore/cloud-client/README.md

@@ -0,0 +1,26 @@
+# Getting Started with Cloud Datastore and the Google Cloud Client libraries
+
+[Google Cloud Datastore][Datastore] is a highly-scalable NoSQL database for your applications.
+These sample Java applications demonstrate how to access the Datastore API using
+the [Google Cloud Client Library for Java][google-cloud-java].
+
+[Datastore]: https://cloud.google.com/datastore/
+[google-cloud-java]: https://github.com/GoogleCloudPlatform/google-cloud-java
+
+## Quickstart
+
+Install [Maven](http://maven.apache.org/).
+
+Build your project with:
+
+	mvn clean package -DskipTests
+
+You can then run a given `ClassName` via:
+
+	mvn exec:java -Dexec.mainClass=com.example.bigquery.ClassName \
+	    -DpropertyName=propertyValue \
+		-Dexec.args="any arguments to the app"
+
+### Creating a new entity (using the quickstart sample)
+
+    mvn exec:java -Dexec.mainClass=com.example.datastore.QuickstartSample

datastore/cloud-client/pom.xml

@@ -39,5 +39,19 @@
       <artifactId>google-cloud-datastore</artifactId>
       <version>0.4.0</version>
     </dependency>
+
+    <!-- Test dependencies -->
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.12</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.truth</groupId>
+      <artifactId>truth</artifactId>
+      <version>0.30</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 </project>

datastore/cloud-client/src/main/java/com/example/datastore/QuickstartSample.java

@@ -37,8 +37,8 @@ public static void main(String... args) throws Exception {
 
     // Prepares the new entity
     Entity task = Entity.builder(taskKey)
-      .set("description", "Buy milk")
-      .build();
+        .set("description", "Buy milk")
+        .build();
 
     // Saves the entity
     datastore.put(task);

datastore/cloud-client/src/test/java/com/example/datastore/QuickstartSampleIT.java

@@ -0,0 +1,72 @@
+/*
+  Copyright 2016, Google, Inc.
+
+  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.example.datastore;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.google.cloud.datastore.Datastore;
+import com.google.cloud.datastore.DatastoreOptions;
+import com.google.cloud.datastore.Key;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+
+/**
+ * Tests for quickstart sample.
+ */
+@RunWith(JUnit4.class)
+@SuppressWarnings("checkstyle:abbreviationaswordinname")
+public class QuickstartSampleIT {
+  private ByteArrayOutputStream bout;
+  private PrintStream out;
+
+  private static final void deleteTestEntity() {
+    Datastore datastore = DatastoreOptions.defaultInstance().service();
+    String kind = "Task";
+    String name = "sampletask1";
+    Key taskKey = datastore.newKeyFactory().kind(kind).newKey(name);
+    datastore.delete(taskKey);
+  }
+
+  @Before
+  public void setUp() {
+    deleteTestEntity();
+
+    bout = new ByteArrayOutputStream();
+    out = new PrintStream(bout);
+    System.setOut(out);
+  }
+
+  @After
+  public void tearDown() {
+    System.setOut(null);
+    deleteTestEntity();
+  }
+
+  @Test
+  public void testQuickstart() throws Exception {
+    QuickstartSample.main();
+    String got = bout.toString();
+    assertThat(got).contains("Saved sampletask1: Buy milk");
+  }
+}
+// [END datastore_quickstart]