CloudMonitoringAuthSampleTest.java

/**
 * Copyright 2015 Google Inc. All Rights Reserved.
 *
 * 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.
 */

import static com.jcabi.matchers.RegexMatchers.*;
import static org.junit.Assert.*;

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

import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.regex.Pattern;

/**
 * Tests the Cloud Monitoring auth sample.
 */
public class CloudMonitoringAuthSampleTest {
  private final ByteArrayOutputStream stdout =
      new ByteArrayOutputStream();
  private final ByteArrayOutputStream stderr =
      new ByteArrayOutputStream();

  @Before
  public void setUp() {
    System.setOut(new PrintStream(stdout));
    System.setErr(new PrintStream(stderr));
  }

  @After
  public void tearDown() {
    System.setOut(null);
    System.setErr(null);
  }

  @Test
  public void testUsage() throws Exception {
    CloudMonitoringAuthSample.main(new String[] { "command-name" });
    assertEquals("Usage: command-name <project-name>\n", stderr.toString());
  }

  @Test
  public void testListTimeSeries() throws Exception {
    CloudMonitoringAuthSample.main(new String[] { "", "cloud-samples-tests" });
    String out = stdout.toString();
    assertThat(out, containsPattern("Timeseries.list raw response:"));
    assertThat(out, containsPattern("\\{\\s*\"kind\" *: *\"cloudmonitoring#listTimeseriesResponse\","));
    assertThat(out, containsPattern(".*oldest.*"));
  }
}