Github user kirklund commented on a diff in the pull request: https://github.com/apache/geode/pull/699#discussion_r132532641 --- Diff: geode-core/src/test/java/org/apache/geode/internal/process/FileProcessControllerIntegrationTest.java --- @@ -0,0 +1,243 @@ +/* + * 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.geode.internal.process; + +import static com.googlecode.catchexception.CatchException.caughtException; +import static com.googlecode.catchexception.CatchException.verifyException; +import static java.util.concurrent.TimeUnit.MILLISECONDS; +import static java.util.concurrent.TimeUnit.MINUTES; +import static org.assertj.core.api.Assertions.assertThat; +import static org.assertj.core.api.Assertions.assertThatThrownBy; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.when; + +import java.io.File; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.TimeoutException; +import java.util.concurrent.atomic.AtomicReference; + +import org.awaitility.Awaitility; +import org.awaitility.core.ConditionFactory; +import org.junit.After; +import org.junit.Before; +import org.junit.Ignore; +import org.junit.Rule; +import org.junit.Test; +import org.junit.experimental.categories.Category; +import org.junit.rules.ErrorCollector; +import org.junit.rules.TemporaryFolder; +import org.junit.rules.TestName; + +import org.apache.geode.distributed.AbstractLauncher.Status; +import org.apache.geode.distributed.LocatorLauncher; +import org.apache.geode.distributed.LocatorLauncher.Builder; +import org.apache.geode.distributed.LocatorLauncher.LocatorState; +import org.apache.geode.internal.process.io.EmptyFileWriter; +import org.apache.geode.internal.process.io.IntegerFileWriter; +import org.apache.geode.internal.process.io.StringFileWriter; +import org.apache.geode.test.junit.categories.IntegrationTest; + +/** + * Integration tests for {@link FileProcessController}. + */ +@Category(IntegrationTest.class) +public class FileProcessControllerIntegrationTest { + + private static final String STATUS_JSON = generateStatusJson(); + + private final AtomicReference<String> statusRef = new AtomicReference<>(); + + private File pidFile; + private File statusFile; + private File statusRequestFile; + private File stopRequestFile; + private int pid; + private FileControllerParameters params; + private ExecutorService executor; + + @Rule + public ErrorCollector errorCollector = new ErrorCollector(); + + @Rule + public TemporaryFolder temporaryFolder = new TemporaryFolder(); + + @Rule + public TestName testName = new TestName(); + + @Before + public void setUp() throws Exception { + ProcessType processType = ProcessType.LOCATOR; + File directory = temporaryFolder.getRoot(); + pidFile = new File(directory, processType.getPidFileName()); + statusFile = new File(directory, processType.getStatusFileName()); + statusRequestFile = new File(directory, processType.getStatusRequestFileName()); + stopRequestFile = new File(directory, processType.getStopRequestFileName()); + pid = ProcessUtils.identifyPid(); + + params = mock(FileControllerParameters.class); + when(params.getPidFile()).thenReturn(pidFile); + when(params.getProcessId()).thenReturn(pid); + when(params.getProcessType()).thenReturn(processType); + when(params.getDirectory()).thenReturn(temporaryFolder.getRoot()); + + executor = Executors.newSingleThreadExecutor(); + } + + @After + public void tearDown() throws Exception { + assertThat(executor.shutdownNow()).isEmpty(); + } + + @Test + public void statusShouldAwaitTimeoutWhileFileIsEmpty() throws Exception { + // given: FileProcessController with empty pidFile + FileProcessController controller = new FileProcessController(params, pid, 10, MILLISECONDS); + + // when: + verifyException(controller).status(); + + // then: we expect TimeoutException to be thrown + assertThat((Exception) caughtException()).isInstanceOf(TimeoutException.class) + .hasMessageContaining("Timed out waiting for process to create").hasNoCause(); + } + + @Test + public void statusShouldReturnJsonFromStatusFile() throws Exception { + // given: FileProcessController with pidFile containing real pid + new IntegerFileWriter(pidFile).writeToFile(pid); + FileProcessController controller = new FileProcessController(params, pid, 2, MINUTES); + + // when: status is called in one thread + executor.execute(() -> { + try { + statusRef.set(controller.status()); + } catch (Exception e) { + errorCollector.addError(e); + } + }); + + // and: json is written to the status file + new StringFileWriter(statusFile).writeToFile(STATUS_JSON); + + // then: returned status should be the json in the file + await().until(() -> assertThat(statusRef.get()).isEqualTo(STATUS_JSON)); + } + + @Ignore // GEODE-3278 --- End diff -- Done.
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