LocalDatastoreTest.java

/*
 * Copyright 2015 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.google.appengine.samples;

// [START LocalDatastoreTest]

import static com.google.appengine.api.datastore.FetchOptions.Builder.withLimit;
import static org.junit.Assert.assertEquals;

import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.Query;
import com.google.appengine.tools.development.testing.LocalDatastoreServiceTestConfig;
import com.google.appengine.tools.development.testing.LocalServiceTestHelper;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class LocalDatastoreTest {

  private final LocalServiceTestHelper helper =
      new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig());

  @Before
  public void setUp() {
    helper.setUp();
  }

  @After
  public void tearDown() {
    helper.tearDown();
  }

  // Run this test twice to prove we're not leaking any state across tests.
  private void doTest() {
    DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
    assertEquals(0, ds.prepare(new Query("yam")).countEntities(withLimit(10)));
    ds.put(new Entity("yam"));
    ds.put(new Entity("yam"));
    assertEquals(2, ds.prepare(new Query("yam")).countEntities(withLimit(10)));
  }

  @Test
  public void testInsert1() {
    doTest();
  }

  @Test
  public void testInsert2() {
    doTest();
  }
}

// [END LocalDatastoreTest]