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Add integration tests for Datastore quickstart.
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‎bigquery/cloud-client/pom.xml

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<dependency>
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<groupId>com.google.truth</groupId>
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<artifactId>truth</artifactId>
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<version>0.29</version>
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<version>0.30</version>
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<scope>test</scope>
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</dependency>
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</dependencies>

‎datastore/cloud-client/README.md

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

‎datastore/cloud-client/pom.xml

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

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

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// Prepares the new entity
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Entity task = Entity.builder(taskKey)
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.set("description", "Buy milk")
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.build();
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.set("description", "Buy milk")
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.build();
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// Saves the entity
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datastore.put(task);

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

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/*
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Copyright 2016, Google, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package com.example.datastore;
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import static com.google.common.truth.Truth.assertThat;
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import com.google.cloud.datastore.Datastore;
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import com.google.cloud.datastore.DatastoreOptions;
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import com.google.cloud.datastore.Key;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.junit.runners.JUnit4;
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import java.io.ByteArrayOutputStream;
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import java.io.PrintStream;
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/**
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* Tests for quickstart sample.
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*/
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@RunWith(JUnit4.class)
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@SuppressWarnings("checkstyle:abbreviationaswordinname")
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public class QuickstartSampleIT {
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private ByteArrayOutputStream bout;
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private PrintStream out;
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private static final void deleteTestEntity() {
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Datastore datastore = DatastoreOptions.defaultInstance().service();
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String kind = "Task";
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String name = "sampletask1";
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Key taskKey = datastore.newKeyFactory().kind(kind).newKey(name);
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datastore.delete(taskKey);
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}
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@Before
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public void setUp() {
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deleteTestEntity();
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bout = new ByteArrayOutputStream();
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out = new PrintStream(bout);
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System.setOut(out);
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}
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@After
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public void tearDown() {
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System.setOut(null);
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deleteTestEntity();
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}
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@Test
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public void testQuickstart() throws Exception {
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QuickstartSample.main();
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String got = bout.toString();
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assertThat(got).contains("Saved sampletask1: Buy milk");
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}
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}
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// [END datastore_quickstart]

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