124 lines
3.6 KiB
Java
124 lines
3.6 KiB
Java
/*
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* Copyright 2012-2019 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample.integration.consumer;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.concurrent.Callable;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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import java.util.concurrent.TimeUnit;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import sample.integration.SampleIntegrationApplication;
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import sample.integration.producer.ProducerApplication;
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import org.springframework.boot.SpringApplication;
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import org.springframework.context.ConfigurableApplicationContext;
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import org.springframework.core.io.DefaultResourceLoader;
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import org.springframework.core.io.Resource;
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import org.springframework.core.io.support.ResourcePatternUtils;
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import org.springframework.util.FileSystemUtils;
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import org.springframework.util.StreamUtils;
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import static org.assertj.core.api.Assertions.assertThat;
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/**
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* Basic integration tests for service demo application.
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*
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* @author Dave Syer
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* @author Andy Wilkinson
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*/
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public class SampleIntegrationApplicationTests {
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private ConfigurableApplicationContext context;
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@Before
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public void deleteInputAndOutput() {
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deleteIfExists(new File("target/input"));
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deleteIfExists(new File("target/output"));
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}
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private void deleteIfExists(File directory) {
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if (directory.exists()) {
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assertThat(FileSystemUtils.deleteRecursively(directory)).isTrue();
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}
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}
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@After
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public void stop() {
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if (this.context != null) {
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this.context.close();
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}
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}
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@Test
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public void testVanillaExchange() throws Exception {
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this.context = SpringApplication.run(SampleIntegrationApplication.class);
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SpringApplication.run(ProducerApplication.class, "World");
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String output = getOutput();
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assertThat(output).contains("Hello World");
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}
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@Test
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public void testMessageGateway() throws Exception {
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this.context = SpringApplication.run(SampleIntegrationApplication.class,
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"testviamg");
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String output = getOutput();
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assertThat(output).contains("testviamg");
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}
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private String getOutput() throws Exception {
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Future<String> future = Executors.newSingleThreadExecutor()
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.submit(new Callable<String>() {
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@Override
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public String call() throws Exception {
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Resource[] resources = getResourcesWithContent();
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while (resources.length == 0) {
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Thread.sleep(200);
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resources = getResourcesWithContent();
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}
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StringBuilder builder = new StringBuilder();
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for (Resource resource : resources) {
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try (InputStream inputStream = resource.getInputStream()) {
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builder.append(new String(
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StreamUtils.copyToByteArray(inputStream)));
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}
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}
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return builder.toString();
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}
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});
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return future.get(30, TimeUnit.SECONDS);
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}
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private Resource[] getResourcesWithContent() throws IOException {
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Resource[] candidates = ResourcePatternUtils
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.getResourcePatternResolver(new DefaultResourceLoader())
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.getResources("file:target/output/**");
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for (Resource candidate : candidates) {
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if (candidate.contentLength() == 0) {
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return new Resource[0];
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}
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}
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return candidates;
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}
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}
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