// 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.build.lib.shell;

import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth8.assertThat;
import static org.junit.Assert.assertThrows;

import java.time.Duration;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Unit tests for {@link TerminationStatus}. */
@RunWith(JUnit4.class)
public final class TerminationStatusTest {

  @Test
  public void testCrashed_exitCodesReturnFalse() {
    assertThat(TerminationStatus.crashed(0)).isFalse();
    assertThat(TerminationStatus.crashed(1)).isFalse();
    assertThat(TerminationStatus.crashed(127)).isFalse();
  }

  @Test
  public void testCrashed_terminationSignalsReturnFalse() {
    assertThat(TerminationStatus.crashed(TerminationStatus.SIGNAL_1)).isFalse();
    assertThat(TerminationStatus.crashed(TerminationStatus.SIGNAL_63)).isFalse();
    assertThat(TerminationStatus.crashed(TerminationStatus.SIGNAL_SIGKILL)).isFalse();
    assertThat(TerminationStatus.crashed(TerminationStatus.SIGNAL_SIGTERM)).isFalse();
  }

  @Test
  public void testCrashed_abruptSignalsReturnTrue() {
    assertThat(TerminationStatus.crashed(TerminationStatus.SIGNAL_SIGABRT)).isTrue();
    assertThat(TerminationStatus.crashed(TerminationStatus.SIGNAL_SIGBUS)).isTrue();
  }

  @Test
  public void testBuilder_withNoWaitResponse() {
    assertThrows(
        IllegalStateException.class, () -> TerminationStatus.builder().setTimedOut(false).build());
  }

  @Test
  public void testBuilder_withNoTimedOut() {
    assertThrows(
        IllegalStateException.class, () -> TerminationStatus.builder().setWaitResponse(0).build());
  }

  @Test
  public void testBuilder_withNoExecutionTime() {
    TerminationStatus terminationStatus =
        TerminationStatus.builder().setWaitResponse(0).setTimedOut(false).build();
    assertThat(terminationStatus.getWallExecutionTime()).isEmpty();
    assertThat(terminationStatus.getUserExecutionTime()).isEmpty();
    assertThat(terminationStatus.getSystemExecutionTime()).isEmpty();
  }

  @Test
  public void testBuilder_withExecutionTime() {
    TerminationStatus terminationStatus =
        TerminationStatus.builder()
            .setWaitResponse(0)
            .setTimedOut(false)
            .setWallExecutionTime(Duration.ofMillis(1929))
            .setUserExecutionTime(Duration.ofMillis(1492))
            .setSystemExecutionTime(Duration.ofMillis(1787))
            .build();
    assertThat(terminationStatus.getWallExecutionTime()).isPresent();
    assertThat(terminationStatus.getWallExecutionTime()).hasValue(Duration.ofMillis(1929));
    assertThat(terminationStatus.getUserExecutionTime()).isPresent();
    assertThat(terminationStatus.getUserExecutionTime()).hasValue(Duration.ofMillis(1492));
    assertThat(terminationStatus.getSystemExecutionTime()).isPresent();
    assertThat(terminationStatus.getSystemExecutionTime()).hasValue(Duration.ofMillis(1787));
  }
}