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.
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  package org.apache.beam.sdk.util.construction;
  
  import static org.apache.beam.sdk.util.construction.PTransformTranslation.TEST_STREAM_TRANSFORM_URN;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.equalTo;
  
  import org.apache.beam.model.pipeline.v1.RunnerApi;
  import org.apache.beam.model.pipeline.v1.RunnerApi.TestStreamPayload;
  import org.apache.beam.sdk.coders.StringUtf8Coder;
  import org.apache.beam.sdk.coders.VarIntCoder;
  import org.apache.beam.sdk.runners.AppliedPTransform;
  import org.apache.beam.sdk.testing.TestPipeline;
  import org.apache.beam.sdk.testing.TestStream;
  import org.apache.beam.sdk.transforms.resourcehints.ResourceHints;
  import org.apache.beam.sdk.values.PBegin;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.sdk.values.PValues;
  import org.apache.beam.sdk.values.TimestampedValue;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  import org.joda.time.Duration;
  import org.joda.time.Instant;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.Parameterized;
  import org.junit.runners.Parameterized.Parameter;
  import org.junit.runners.Parameterized.Parameters;
  
  /** Tests for {@link TestStreamTranslation}. */
  @RunWith(Parameterized.class)
  public class TestStreamTranslationTest {
    @Parameters(name = "{index}: {0}")
    public static Iterable<TestStream<?>> data() {
      return ImmutableList.of(
          TestStream.create(VarIntCoder.of()).advanceWatermarkToInfinity(),
          TestStream.create(VarIntCoder.of())
              .advanceWatermarkTo(new Instant(42))
              .advanceWatermarkToInfinity(),
          TestStream.create(VarIntCoder.of())
              .addElements(TimestampedValue.of(3, new Instant(17)))
              .advanceWatermarkToInfinity(),
          TestStream.create(StringUtf8Coder.of())
              .advanceProcessingTime(Duration.millis(82))
              .advanceWatermarkToInfinity());
    }
  
    @Parameter(0)
    public TestStream<String> testStream;
  
    public static TestPipeline p = TestPipeline.create().enableAbandonedNodeEnforcement(false);
  
    @Test
    public void testEncodedProto() throws Exception {
      SdkComponents components = SdkComponents.create();
      components.registerEnvironment(Environments.createDockerEnvironment("java"));
      RunnerApi.TestStreamPayload payload =
          TestStreamTranslation.payloadForTestStream(testStream, components);
  
      verifyTestStreamEncoding(
          testStream, payload, RehydratedComponents.forComponents(components.toComponents()));
    }
  
    @Test
    public void testRegistrarEncodedProto() throws Exception {
      PCollection<String> output = p.apply(testStream);
  
      AppliedPTransform<PBegin, PCollection<String>, TestStream<String>> appliedTestStream =
          AppliedPTransform.of(
              "fakeName",
              PValues.expandInput(PBegin.in(p)),
              PValues.expandOutput(output),
              testStream,
              ResourceHints.create(),
              p);
  
      SdkComponents components = SdkComponents.create();
      components.registerEnvironment(Environments.createDockerEnvironment("java"));
      RunnerApi.FunctionSpec spec =
          PTransformTranslation.toProto(appliedTestStream, components).getSpec();
  
      assertThat(spec.getUrn(), equalTo(TEST_STREAM_TRANSFORM_URN));
  
      RunnerApi.TestStreamPayload payload = TestStreamPayload.parseFrom(spec.getPayload());
  
      verifyTestStreamEncoding(
          testStream, payload, RehydratedComponents.forComponents(components.toComponents()));
    }
  
    private static <T> void verifyTestStreamEncoding(
        TestStream<T> testStream,
        RunnerApi.TestStreamPayload payload,
        RehydratedComponents protoComponents)
        throws Exception {
  
      // This reverse direction is only valid for Java-based coders
      assertThat(protoComponents.getCoder(payload.getCoderId()), equalTo(testStream.getValueCoder()));
  
      assertThat(payload.getEventsList().size(), equalTo(testStream.getEvents().size()));
  
      for (int i = 0; i < payload.getEventsList().size(); ++i) {
        assertThat(
            TestStreamTranslation.eventFromProto(payload.getEvents(i), testStream.getValueCoder()),
            equalTo(testStream.getEvents().get(i)));
      }
    }
  }
  