lostluck commented on code in PR #32294:
URL: https://github.com/apache/beam/pull/32294#discussion_r1728069542


##########
runners/prism/java/src/main/java/org/apache/beam/runners/prism/TestPrismRunner.java:
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@@ -0,0 +1,78 @@
+/*
+ * 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 org.apache.beam.sdk.util.Preconditions.checkStateNotNull;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+import java.util.function.Supplier;
+import org.apache.beam.sdk.Pipeline;
+import org.apache.beam.sdk.PipelineResult;
+import org.apache.beam.sdk.PipelineRunner;
+import org.apache.beam.sdk.options.PipelineOptions;
+import org.hamcrest.Matchers;
+import org.joda.time.Duration;
+
+/**
+ * {@link TestPrismRunner} is the recommended {@link PipelineRunner} to use 
for tests that rely on
+ * <a 
href="https://github.com/apache/beam/tree/master/sdks/go/cmd/prism";>sdks/go/cmd/prism</a>.
 See
+ * {@link PrismRunner} for more details.
+ */
+public class TestPrismRunner extends PipelineRunner<PipelineResult> {
+
+  private final PrismRunner internal;
+  private final TestPrismPipelineOptions prismPipelineOptions;
+
+  /**
+   * Invoked from {@link Pipeline#run} where {@link TestPrismRunner} 
instantiates using {@link
+   * TestPrismPipelineOptions} configuration details.
+   */
+  public static TestPrismRunner fromOptions(PipelineOptions options) {
+    TestPrismPipelineOptions prismPipelineOptions = 
options.as(TestPrismPipelineOptions.class);
+    PrismRunner delegate = PrismRunner.fromOptions(options);
+    return new TestPrismRunner(delegate, prismPipelineOptions);
+  }
+
+  private TestPrismRunner(PrismRunner internal, TestPrismPipelineOptions 
options) {
+    this.internal = internal;
+    this.prismPipelineOptions = options;
+  }
+
+  TestPrismPipelineOptions getTestPrismPipelineOptions() {
+    return prismPipelineOptions;
+  }
+
+  @Override
+  public PipelineResult run(Pipeline pipeline) {
+    PipelineResult result = internal.run(pipeline);
+    PipelineResult.State state = getWaitUntilFinishRunnable(result).get();
+    assertThat(
+        "Pipeline did not succeed. Check Prism logs for further details.",
+        state,
+        Matchers.is(PipelineResult.State.DONE));
+    return result;
+  }
+
+  private Supplier<PipelineResult.State> 
getWaitUntilFinishRunnable(PipelineResult result) {
+    if (prismPipelineOptions.getTestTimeoutSeconds() != null) {
+      Long testTimeoutSeconds = 
checkStateNotNull(prismPipelineOptions.getTestTimeoutSeconds());
+      return () -> 
result.waitUntilFinish(Duration.standardSeconds(testTimeoutSeconds));

Review Comment:
   Ooooh clever. SDK side test waiting. I like it.



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