我有一份集成测试的代码覆盖率报告。
我确实有集成测试，这些测试在 Maven 构建中成功运行。
当我单击 HTML 报告右上角的“会话”链接时，我可以在列表中看到我的测试类，但我现在看不到测试执行的主要类，并且所有覆盖率报告百分比都在零。
作为旁注，我的单元测试覆盖率工作正常，百分比显示正常。
我的配置如下：
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.18.1</version>
<configuration>
<argLine>${surefireArgLine}</argLine>
<excludes>
<exclude>**/integrationtest/*.java</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.18.1</version>
<configuration>
<argLine>${failsafeArgLine}</argLine>
<skipTests>${skipIntegrationTests}</skipTests>
<includes>
<include>**/integrationtest/*.java</include>
</includes>
</configuration>
<executions>
<execution>
<id>integration-test</id>
<goals>
<goal>integration-test</goal>
</goals>
</execution>
<execution>
<id>verify</id>
<goals>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.5.201505241946</version>
<executions>
<execution>
<id>pre-unit-test</id>
<goals>
<goal>prepare-agent</goal>
</goals>
<configuration>
<destFile>${project.build.directory}/coverage-reports/jacoco-ut.exec</destFile>
<propertyName>surefireArgLine</propertyName>
</configuration>
</execution>
<execution>
<id>post-unit-test</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
<configuration>
<dataFile>${project.build.directory}/coverage-reports/jacoco-ut.exec</dataFile>
<outputDirectory>${project.reporting.outputDirectory}/jacoco-ut</outputDirectory>
</configuration>
</execution>
<execution>
<id>pre-integration-test</id>
<phase>pre-integration-test</phase>
<goals>
<goal>prepare-agent-integration</goal>
</goals>
<configuration>
<destFile>${project.build.directory}/coverage-reports/jacoco-it.exec</destFile>
<propertyName>failsafeArgLine</propertyName>
</configuration>
</execution>
<execution>
<id>post-integration-test</id>
<phase>post-integration-test</phase>
<goals>
<goal>report-integration</goal>
</goals>
<configuration>
<dataFile>${project.build.directory}/coverage-reports/jacoco-it.exec</dataFile>
<outputDirectory>${project.reporting.outputDirectory}/jacoco-it</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.2.2.v20140723</version>
<configuration>
<httpConnector>
<port>${jetty.port}</port>
</httpConnector>
<scanIntervalSeconds>10</scanIntervalSeconds>
<stopPort>8805</stopPort>
<stopKey>STOP</stopKey>
</configuration>
<executions>
<execution>
<id>start-jetty</id>
<phase>pre-integration-test</phase>
<goals>
<goal>stop</goal> <!-- stop any stray process that has been running since before -->
<goal>run-forked</goal>
</goals>
<configuration>
<scanIntervalSeconds>0</scanIntervalSeconds>
<daemon>true</daemon>
<waitForChild>false</waitForChild>
<maxStartupLines>200</maxStartupLines>
<jvmArgs>${failsafeArgLine} -Djetty.port=${jetty.port}</jvmArgs>
</configuration>
</execution>
<execution>
<id>stop-jetty</id>
<phase>post-integration-test</phase>
<goals>
<goal>stop</goal>
</goals>
</execution>
</executions>
</plugin>
请注意 JaCoCo 插件是如何在码头一号之前定义的。
控制台日志显示失败的连接尝试日志。集成测试无法连接到 localhost。这是因为 Jetty 服务器在 Maven 运行测试之前没有时间启动。
org.apache.http.conn.HttpHostConnectException: Connection to http://localhost:8888 refused
这也是另一个控制台日志位：
[STDERR] 2015-12-21 09:49:43.486:WARN:oejuc.AbstractLifeCycle:main: FAILED ServerConnector@2cd9b65d{HTTP/1.1}{0.0.0.0:8080}: java.net.BindExcep
tion: Address already in use
[STDERR] java.net.BindException: Address already in use
[STDERR] at sun.nio.ch.Net.bind0(Native Method)
[STDERR] at sun.nio.ch.Net.bind(Net.java:436)
[STDERR] at sun.nio.ch.Net.bind(Net.java:428)
[STDERR] at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
[STDERR] at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
[STDERR] at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:277)
[STDERR] at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80)
[STDERR] at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:216)
[STDERR] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
[STDERR] at org.eclipse.jetty.maven.plugin.MavenServerConnector.doStart(MavenServerConnector.java:120)
[STDERR] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
[STDERR] at org.eclipse.jetty.server.Server.doStart(Server.java:359)
[STDERR] at org.eclipse.jetty.maven.plugin.JettyServer.doStart(JettyServer.java:76)
[STDERR] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
[STDERR] at org.eclipse.jetty.maven.plugin.Starter.run(Starter.java:401)
[STDERR] at org.eclipse.jetty.maven.plugin.Starter.main(Starter.java:516)
[STDERR] 2015-12-21 09:49:43.486:WARN:oejuc.AbstractLifeCycle:main: FAILED org.eclipse.jetty.maven.plugin.MavenServerConnector@630b8061: java.net.BindException: Address already in use
[STDERR] java.net.BindException: Address already in use
[STDERR] at sun.nio.ch.Net.bind0(Native Method)
[STDERR] at sun.nio.ch.Net.bind(Net.java:436)
拥有start值而不是run-forked目标可以使测试运行良好。但我需要它作为run-forked代码覆盖率报告。
使用该<waitForChild>false</waitForChild>选项对问题没有任何改变。
在运行集成测试之前，如何让 Maven 构建等待 Jetty 服务器以分叉模式启动？
<maxStartupLines>200</maxStartupLines>更新：我可以使用以下选项让 Maven 构建等待 Jetty 服务器以分叉模式启动。
但是现在，报告中没有看到我的集成测试，尽管它们运行良好。
我的日志说：
[INFO] --- jacoco-maven-plugin:0.7.5.201505241946:prepare-agent-integration (pre-integration-test) @ rest ---
[INFO] failsafeArgLine set to -javaagent:/home/stephane/.m2/repository/org/jacoco/org.jacoco.agent/0.7.5.201505241946/org.jacoco.agent-0.7.5.201505241946-runtime.jar=destfile=/home/stephane/source/...-rest/rest/target/coverage-reports/jacoco-it.exec
[INFO] <<< jetty-maven-plugin:9.2.2.v20140723:run-forked (start-jetty) @ rest <<<
[INFO]
[INFO] --- jetty-maven-plugin:9.2.2.v20140723:run-forked (start-jetty) @ rest ---
[INFO] Configuring Jetty for project: Rest
[INFO] webAppSourceDirectory not set. Trying src/main/webapp
[INFO] Reload Mechanic: automatic
[INFO] Classes = /home/stephane/source/...-rest/rest/target/classes
[INFO] Context path = /
[INFO] Tmp directory = /home/stephane/source/...-rest/rest/target/tmp
[INFO] Web defaults = org/eclipse/jetty/webapp/webdefault.xml
[INFO] Web overrides = none
[INFO] web.xml file = file:/home/stephane/source/...-rest/rest/src/main/webapp/WEB-INF/web.xml
[INFO] Webapp directory = /home/stephane/source/...-rest/rest/src/main/webapp
[INFO] Forked process starting
[INFO] Forked process started.
更新：如果我运行 Maven 命令mvn jacoco:report-integration，控制台会抱怨缺少数据文件：
[INFO] --- jacoco-maven-plugin:0.7.5.201505241946:report-integration (default-cli) @ rest ---
[INFO] Skipping JaCoCo execution due to missing execution data file:/home/stephane/source/...-rest/rest/target/jacoco-it.exec
实际上，数据文件在 pom.xml 文件中指定为<dataFile>${project.build.directory}/coverage-reports/jacoco-it.exec</dataFile>
为什么它被查找为jacoco-it.exec而不是coverage-reports/jacoco-it.exec？
是因为 JaCoCo 报告是在 Jetty 服务器有时间停止并生成数据文件之前生成的吗？但是为什么不同的文件路径呢？以及如何告诉 JaCoCo 报告等待呢？
更新：我在集成测试stopWait的目标中添加了 1 ：stop
<execution>
<id>stop-jetty</id>
<phase>post-integration-test</phase>
<goals>
<goal>stop</goal>
</goals>
<configuration>
<stopWait>1</stopWait>
</configuration>
</execution>
但这并没有改变这个问题。
更新：使用该选项运行构建-X显示以下内容：
[INFO]
[INFO] --- jacoco-maven-plugin:0.7.5.201505241946:report-integration (post-integration-test) @ rest ---
[DEBUG] Configuring mojo org.jacoco:jacoco-maven-plugin:0.7.5.201505241946:report-integration from plugin realm ClassRealm[plugin>org.jacoco:ja
coco-maven-plugin:0.7.5.201505241946, parent: sun.misc.Launcher$AppClassLoader@5c647e05]
[DEBUG] Configuring mojo 'org.jacoco:jacoco-maven-plugin:0.7.5.201505241946:report-integration' with basic configurator -->
[DEBUG] (f) dataFile = /home/stephane/source/...-rest/rest/target/coverage-reports/jacoco-it.exec
[DEBUG] (f) outputDirectory = /home/stephane/source/...-rest/rest/target/site/jacoco-it
[DEBUG] (f) outputEncoding = UTF-8
[DEBUG] (f) project = MavenProject: no.....db:rest:1.40.0-SNAPSHOT @ /home/stephane/source/...-rest/rest/pom.xml
[DEBUG] (f) skip = false
[DEBUG] (f) sourceEncoding = UTF-8
[DEBUG] -- end configuration --
[INFO] Analyzed bundle 'Rest' with 50 classes
[INFO]
[INFO] --- jetty-maven-plugin:9.2.2.v20140723:stop (stop-jetty) @ rest ---
[DEBUG] Configuring mojo org.eclipse.jetty:jetty-maven-plugin:9.2.2.v20140723:stop from plugin realm ClassRealm[plugin>org.eclipse.jetty:jetty-maven-plugin:9.2.2.v20140723, parent: sun.misc.Launcher$AppClassLoader@5c647e05]
[DEBUG] Configuring mojo 'org.eclipse.jetty:jetty-maven-plugin:9.2.2.v20140723:stop' with basic configurator -->
[DEBUG] (s) stopKey = STOP
[DEBUG] (s) stopPort = 8805
[DEBUG] (f) stopWait = 1
[DEBUG] -- end configuration --
[INFO] Waiting 1 seconds for jetty to stop
[INFO] Server reports itself as stopped
这告诉我在 Jetty 服务器停止之前正在生成报告。如果是这样的话，那就是错误的。Jetty 服务器停止后如何生成报告？