src/test/java/com/google/devtools/common/options/DurationConverterTest.java


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// Copyright 2017 The Bazel Authors. 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.
package com.google.devtools.common.options;

import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;

import com.google.devtools.common.options.Converters.DurationConverter;
import java.time.Duration;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link DurationConverter}. */
@RunWith(JUnit4.class)
public class DurationConverterTest {

  @Test
  public void testDurationConverter_zero() throws OptionsParsingException {
    DurationConverter converter = new DurationConverter();

    assertThat(converter.convert("0")).isEqualTo(Duration.ZERO);
    assertThat(converter.convert("0d")).isEqualTo(Duration.ZERO);
    assertThat(converter.convert("0h")).isEqualTo(Duration.ZERO);
    assertThat(converter.convert("0m")).isEqualTo(Duration.ZERO);
    assertThat(converter.convert("0s")).isEqualTo(Duration.ZERO);
    assertThat(converter.convert("0ms")).isEqualTo(Duration.ZERO);
  }

  @Test
  public void testDurationConverter_basic() throws OptionsParsingException {
    DurationConverter converter = new DurationConverter();

    assertThat(converter.convert("10d")).isEqualTo(Duration.ofDays(10));
    assertThat(converter.convert("20h")).isEqualTo(Duration.ofHours(20));
    assertThat(converter.convert("30m")).isEqualTo(Duration.ofMinutes(30));
    assertThat(converter.convert("40s")).isEqualTo(Duration.ofSeconds(40));
    assertThat(converter.convert("50ms")).isEqualTo(Duration.ofMillis(50));
  }

  @Test
  public void testDurationConverter_invalidInputs() {
    DurationConverter converter = new DurationConverter();

    try {
      converter.convert("");
      fail();
    } catch (OptionsParsingException expected) {
    }

    try {
      converter.convert("-10d");
      fail();
    } catch (OptionsParsingException expected) {
    }

    try {
      converter.convert("h");
      fail();
    } catch (OptionsParsingException expected) {
    }

    try {
      converter.convert("1g");
      fail();
    } catch (OptionsParsingException expected) {
    }
  }
}