content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.beam.runners.dataflow.util;
  
  import static org.apache.beam.runners.dataflow.util.TimeUtil.fromCloudDuration;
  import static org.apache.beam.runners.dataflow.util.TimeUtil.fromCloudTime;
  import static org.apache.beam.runners.dataflow.util.TimeUtil.toCloudDuration;
  import static org.apache.beam.runners.dataflow.util.TimeUtil.toCloudTime;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNull;
  
  import org.joda.time.Duration;
  import org.joda.time.Instant;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Unit tests for {@link TimeUtil}. */
  @RunWith(JUnit4.class)
  public final class TimeUtilTest {
    @Test
    public void toCloudTimeShouldPrintTimeStrings() {
      assertEquals("1970-01-01T00:00:00Z", toCloudTime(new Instant(0)));
      assertEquals("1970-01-01T00:00:00.001Z", toCloudTime(new Instant(1)));
    }
  
    @Test
    public void fromCloudTimeShouldParseTimeStrings() {
      assertEquals(new Instant(0), fromCloudTime("1970-01-01T00:00:00Z"));
      assertEquals(new Instant(1), fromCloudTime("1970-01-01T00:00:00.001Z"));
      assertEquals(new Instant(1), fromCloudTime("1970-01-01T00:00:00.001000Z"));
      assertEquals(new Instant(1), fromCloudTime("1970-01-01T00:00:00.001001Z"));
      assertEquals(new Instant(1), fromCloudTime("1970-01-01T00:00:00.001000000Z"));
      assertEquals(new Instant(1), fromCloudTime("1970-01-01T00:00:00.001000001Z"));
      assertEquals(new Instant(0), fromCloudTime("1970-01-01T00:00:00.0Z"));
      assertEquals(new Instant(0), fromCloudTime("1970-01-01T00:00:00.00Z"));
      assertEquals(new Instant(420), fromCloudTime("1970-01-01T00:00:00.42Z"));
      assertEquals(new Instant(300), fromCloudTime("1970-01-01T00:00:00.3Z"));
      assertEquals(new Instant(20), fromCloudTime("1970-01-01T00:00:00.02Z"));
      assertNull(fromCloudTime(""));
      assertNull(fromCloudTime("1970-01-01T00:00:00"));
      assertNull(fromCloudTime("1970-01-01T00:00:00.1e3Z"));
    }
  
    @Test
    public void toCloudDurationShouldPrintDurationStrings() {
      assertEquals("0s", toCloudDuration(Duration.ZERO));
      assertEquals("4s", toCloudDuration(Duration.millis(4000)));
      assertEquals("4.001s", toCloudDuration(Duration.millis(4001)));
    }
  
    @Test
    public void fromCloudDurationShouldParseDurationStrings() {
      assertEquals(Duration.millis(4000), fromCloudDuration("4s"));
      assertEquals(Duration.millis(4001), fromCloudDuration("4.001s"));
      assertEquals(Duration.millis(4001), fromCloudDuration("4.001000s"));
      assertEquals(Duration.millis(4001), fromCloudDuration("4.001001s"));
      assertEquals(Duration.millis(4001), fromCloudDuration("4.001000000s"));
      assertEquals(Duration.millis(4001), fromCloudDuration("4.001000001s"));
      assertNull(fromCloudDuration(""));
      assertNull(fromCloudDuration("4"));
      assertNull(fromCloudDuration("4.1"));
      assertNull(fromCloudDuration("4.1s"));
    }
  }
  