无法让Jacoco使用离线工具与Powermockito合作 [英] Unable to get Jacoco to work with Powermockito using offline instrumentation

问题描述

鉴于Jacoco在使用即时工具时与PowerMockito不能很好地配合，我一直在尝试配置离线工具，希望这能为我提供适用于使用PowerMockito的类的单元测试覆盖率。

Given that Jacoco doesn't play nicely with PowerMockito when instrumenting "on the fly", I've been trying to configure offline instrumentation in the hope this will give me proper unit test coverage for classes that use PowerMockito.

我已经设置了我的pom，但我的测试课程仍然保持0％的覆盖率。任何帮助都非常感激，因为它让我慢慢疯狂！

I've setup my pom as below but I still get zero % coverage on my test class. Any help much appreciated as it's driving me slowly bonkers!

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>mandy</groupId>
    <artifactId>jacoco-test</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>jacoco-test Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <properties>
        <powermock.version>1.5.4</powermock.version>
        <jacoco.version>0.7.1.201405082137</jacoco.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.jacoco</groupId>
            <artifactId>org.jacoco.agent</artifactId>
            <classifier>runtime</classifier>
            <version>${jacoco.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-module-junit4</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-api-mockito</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
            <scope>test</scope>
        </dependency>

    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>${jacoco.version}</version>
                <executions>
                    <execution>
                        <id>instrument</id>
                        <phase>process-classes</phase>
                        <goals>
                            <goal>instrument</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>restore-report</id>
                        <phase>prepare-package</phase>
                        <goals>
                            <goal>restore-instrumented-classes</goal>
                            <goal>report</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.17</version>
                <configuration>
                    <!--<argLine>${argLine}</argLine>-->
                    <systemPropertyVariables>
                        <!-- JaCoCo runtime must know where to dump coverage: -->
                        <jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
                    </systemPropertyVariables>
                </configuration>
            </plugin>
        </plugins>
        <finalName>jacoco-test</finalName>
    </build>
</project>

这是我的测试类：

public class Utils {

    private Utils() {

    }

    public static String say(String s) {
        return "hello:"+s;
    }
}

这是我的测试：

@RunWith(PowerMockRunner.class)

@PrepareOnlyThisForTest(Utils.class)
@PowerMockIgnore("org.jacoco.agent.rt.*")
public class UtilsTest {

    @Test
    public void testSay() throws Exception {
        PowerMockito.mockStatic(Utils.class);
        Mockito.when(Utils.say(Mockito.anyString())).thenReturn("hello:mandy");
        assertEquals("hello:mandy", Utils.say("sid"));
    }

}

我运行mvn clean install生成jacoco.exe

I run mvn clean install which generates the jacoco.exe

覆盖率报告（使用ant脚本从jacoco.exec生成）： -

Coverage report (generated from jacoco.exec using an ant script ):-

< img src =https://i.stack.imgur.com/bskW1.pngalt =覆盖率报告>

推荐答案

这个pom对我有用：

 <build>
    <finalName>final-name</finalName>
    <plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.18.1</version>
            <configuration>
                <systemPropertyVariables>
                    <jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
                </systemPropertyVariables>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
            <version>0.7.2.201409121644</version>
            <executions>
                <execution>
                    <id>default-instrument</id>
                    <goals>
                        <goal>instrument</goal>
                    </goals>
                </execution>
                <execution>
                    <id>default-restore-instrumented-classes</id>
                    <goals>
                        <goal>restore-instrumented-classes</goal>
                    </goals>
                </execution>
                <execution>
                    <id>default-report</id>
                    <phase>prepare-package</phase>
                    <goals>
                        <goal>report</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

参见此链接。

这篇关于无法让Jacoco使用离线工具与Powermockito合作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！