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.prism;
  
  import static com.google.common.truth.Truth.assertThat;
  import static org.junit.Assert.assertThrows;
  import static org.junit.Assume.assumeTrue;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  import org.apache.beam.sdk.options.PipelineOptionsFactory;
  import org.apache.beam.sdk.testing.PAssert;
  import org.apache.beam.sdk.testing.TestPipeline;
  import org.apache.beam.sdk.transforms.Create;
  import org.apache.beam.sdk.transforms.GroupByKey;
  import org.apache.beam.sdk.transforms.WithKeys;
  import org.apache.beam.sdk.transforms.WithTimestamps;
  import org.apache.beam.sdk.transforms.windowing.FixedWindows;
  import org.apache.beam.sdk.transforms.windowing.Window;
  import org.apache.beam.sdk.util.construction.Environments;
  import org.apache.beam.sdk.values.KV;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Strings;
  import org.joda.time.Duration;
  import org.joda.time.Instant;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests for {@link PrismRunner}. */
  @RunWith(JUnit4.class)
  public class PrismRunnerTest {
  
    @Rule public TestPipeline pipeline = TestPipeline.fromOptions(options());
  
    // See build.gradle for test task configuration.
    private static final String PRISM_BUILD_TARGET_PROPERTY_NAME = "prism.buildTarget";
  
    @Test
    public void givenJobEndpointSet_TestPrismRunner_validateThrows() {
      TestPrismPipelineOptions options =
          PipelineOptionsFactory.create().as(TestPrismPipelineOptions.class);
      options.setRunner(TestPrismRunner.class);
      options.setJobEndpoint("endpoint");
      IllegalArgumentException error =
          assertThrows(IllegalArgumentException.class, () -> TestPrismRunner.fromOptions(options));
      assertThat(error.getMessage())
          .isEqualTo("when specifying --jobEndpoint, use --runner=PortableRunner instead");
    }
  
    @Test
    public void givenJobEndpointSet_PrismRunner_validateThrows() {
      PrismPipelineOptions options = PipelineOptionsFactory.create().as(PrismPipelineOptions.class);
      options.setRunner(PrismRunner.class);
      options.setJobEndpoint("endpoint");
      IllegalArgumentException error =
          assertThrows(IllegalArgumentException.class, () -> TestPrismRunner.fromOptions(options));
      assertThat(error.getMessage())
          .isEqualTo("when specifying --jobEndpoint, use --runner=PortableRunner instead");
    }
  
    @Test
    public void givenEnvironmentTypeEmpty_TestPrismRunner_defaultsToLoopback() {
      TestPrismPipelineOptions options =
          PipelineOptionsFactory.create().as(TestPrismPipelineOptions.class);
      options.setRunner(TestPrismRunner.class);
      assertThat(
              TestPrismRunner.fromOptions(options)
                  .getTestPrismPipelineOptions()
                  .getDefaultEnvironmentType())
          .isEqualTo(Environments.ENVIRONMENT_LOOPBACK);
    }
  
    @Test
    public void givenEnvironmentTypeEmpty_PrismRunner_defaultsToLoopback() {
      PrismPipelineOptions options = PipelineOptionsFactory.create().as(PrismPipelineOptions.class);
      options.setRunner(PrismRunner.class);
      assertThat(
              PrismRunner.fromOptions(options).getPrismPipelineOptions().getDefaultEnvironmentType())
          .isEqualTo(Environments.ENVIRONMENT_LOOPBACK);
    }
  
    @Test
    public void prismReportsPAssertFailure() {
      PAssert.that(pipeline.apply(Create.of(1, 2, 3)))
          // Purposely introduce a failed assertion.
          .containsInAnyOrder(1, 2, 3, 4);
      assertThrows(AssertionError.class, pipeline::run);
    }
  
    @Test
    public void windowing() {
      PCollection<KV<String, Iterable<Integer>>> got =
          pipeline
              .apply(Create.of(1, 2, 100, 101, 102, 123))
              .apply(WithTimestamps.of(t -> Instant.ofEpochSecond(t)))
              .apply(WithKeys.of("k"))
              .apply(Window.into(FixedWindows.of(Duration.standardSeconds(10))))
              .apply(GroupByKey.create());
  
      List<KV<String, Iterable<Integer>>> want =
          Arrays.asList(
              KV.of("k", Arrays.asList(1, 2)),
              KV.of("k", Arrays.asList(100, 101, 102)),
              KV.of("k", Collections.singletonList(123)));
  
      PAssert.that(got).containsInAnyOrder(want);
  
      pipeline.run();
    }
  
    private static TestPrismPipelineOptions options() {
      TestPrismPipelineOptions opts =
          PipelineOptionsFactory.create().as(TestPrismPipelineOptions.class);
  
      opts.setRunner(TestPrismRunner.class);
      opts.setPrismLocation(getLocalPrismBuildOrIgnoreTest());
      opts.setEnableWebUI(false);
  
      return opts;
    }
  
    /**
     * Drives ignoring of tests via checking {@link org.junit.Assume#assumeTrue} that the {@link
     * System#getProperty} for {@link #PRISM_BUILD_TARGET_PROPERTY_NAME} is not null or empty.
     */
    static String getLocalPrismBuildOrIgnoreTest() {
      String command = System.getProperty(PRISM_BUILD_TARGET_PROPERTY_NAME);
      assumeTrue(
          "System property: "
              + PRISM_BUILD_TARGET_PROPERTY_NAME
              + " is not set; see build.gradle for test task configuration",
          !Strings.isNullOrEmpty(command));
      return command;
    }
  }
  