[英]How to run surefire tests in parallel while forcing some to run sequentially?
我正在使用数以千计的测试进行非常缓慢的Maven项目(运行所有测试需要2小时)。 因此,我尝试通过按以下方式配置surefire插件来并行运行测试:
<configuration>
<failIfNoTests>false</failIfNoTests>
<reuseForks>false</reuseForks>
<reuseForks>true</reuseForks>
<forkCount>2C</forkCount>
<systemPropertyVariables>
<jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
</systemPropertyVariables>
<parallel>suites</parallel>
<threadCount>12</threadCount>
</configuration>
但是然后某些测试在其@Before
和@After
方法中失败,在这些方法中我们初始化并清理了一些资源(它似乎与端口冲突有关)。
我尝试将此注释@net.jcip.annotations.NotThreadSafe
添加到@net.jcip.annotations.NotThreadSafe
文档中描述的失败测试中,以按顺序运行它们并避免冲突。 但是,这没有用,这些测试仍然失败!!!
关于如何强制某些surefire测试在相同的JVM进程和相同的线程上依次运行而其余的将并行运行(可能在不同的JVM进程上)的任何指针?
编辑1现在,我尝试将surefire的配置分为两个:一个用于顺序测试,另一个用于并行测试。 但是,这种方法似乎并没有增加执行时间,因为我仍然有失败的测试,并且仍然需要2小时才能运行所有测试。
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire.version}</version>
<!-- Sequential tests -->
<configuration>
<includes>**/*Sequential.java</includes>
<failIfNoTests>false</failIfNoTests>
<reuseForks>false</reuseForks>
<systemPropertyVariables>
<jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
<executions>
<!-- Parallel tests -->
<execution>
<id>parallel-tests</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<includes>**/*.java</includes>
<excludes>
<exclude>**/*Sequential.java</exclude>
</excludes>
<failIfNoTests>false</failIfNoTests>
<reuseForks>true</reuseForks>
<forkCount>2C</forkCount>
<parallel>suites</parallel>
<threadCount>12</threadCount>
</configuration>
</execution>
</executions>
</plugin>
我会采用“将surefire的配置分成两部分”的方法。
但是,您的配置似乎有问题,因为您仅定义了一个执行。
可能想尝试这样的事情(使用自己的配置定义2个执行):
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire.version}</version>
<executions>
<!-- Sequential tests -->
<execution>
<id>sequential-tests</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<includes>**/*Sequential.java</includes>
<failIfNoTests>false</failIfNoTests>
<reuseForks>false</reuseForks>
<systemPropertyVariables>
<jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
</execution>
<!-- Parallel tests -->
<execution>
<id>parallel-tests</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<includes>**/*.java</includes>
<excludes>
<exclude>**/*Sequential.java</exclude>
</excludes>
<failIfNoTests>false</failIfNoTests>
<reuseForks>true</reuseForks>
<forkCount>2C</forkCount>
<parallel>suites</parallel>
<threadCount>12</threadCount>
</configuration>
</execution>
</executions>
</plugin>
这是我根据需要运行测试的最终Maven配置:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire.version}</version>
<!-- Sequential tests -->
<configuration>
<failIfNoTests>false</failIfNoTests>
<reuseForks>false</reuseForks>
<systemPropertyVariables>
<jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
<executions>
<!-- Default tests -->
<execution>
<id>default-test</id>
<configuration>
<skip>true</skip>
</configuration>
</execution>
<!-- Parallel tests -->
<execution>
<id>parallel-tests</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<includes>**/*.java</includes>
<excludes>
<exclude>**/*Sequential.java</exclude>
</excludes>
<failIfNoTests>false</failIfNoTests>
<reuseForks>true</reuseForks>
<forkCount>2C</forkCount>
<parallel>suites</parallel>
<threadCount>12</threadCount>
</configuration>
</execution>
<!-- Sequential tests -->
<execution>
<id>sequential-tests</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<skip>${skip.sequential.tests}</skip>
<includes>**/*Sequential.java</includes>
<reuseForks>false</reuseForks>
</configuration>
</execution>
</executions>
</plugin>
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