为什么Scalatest、Maven和cobertura的代码覆盖率为零？

我试图让Cobertura使用Maven和Scala开发一个非常简单的示例项目。 这是我的pom：

编辑：同时，我发现这个pom相当糟糕。如果你想找一个更好的例子，请参阅公认答案中的例子

<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>sandbox</groupId>
<artifactId>sandbox</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
    <scala.version>2.10.4</scala.version>
</properties>

<repositories>
    <repository>
        <id>scala-tools.org</id>
        <name>Scala-Tools Maven2 Repository</name>
        <url>http://scala-tools.org/repo-releases</url>
    </repository>
</repositories>

<pluginRepositories>
    <pluginRepository>
        <id>scala-tools.org</id>
        <name>Scala-Tools Maven2 Repository</name>
        <url>http://scala-tools.org/repo-releases</url>
    </pluginRepository>
</pluginRepositories>

<dependencies>
    <dependency>
        <groupId>org.scala-lang</groupId>
        <artifactId>scala-library</artifactId>
        <version>${scala.version}</version>
    </dependency>
    <!-- Scalatest -->
    <dependency>
        <groupId>org.scalatest</groupId>
        <artifactId>scalatest_2.10</artifactId>
        <version>2.2.4</version>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <sourceDirectory>src/main/scala</sourceDirectory>
    <testSourceDirectory>src/test/scala</testSourceDirectory>
    <plugins>
        <plugin>
            <groupId>org.scala-tools</groupId>
            <artifactId>maven-scala-plugin</artifactId>
            <executions>
                <execution>
                    <goals>
                        <goal>compile</goal>
                        <goal>testCompile</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <scalaVersion>${scala.version}</scalaVersion>
                <args>
                    <arg>-target:jvm-1.5</arg>
                </args>
            </configuration>
        </plugin>

        <!-- disable surefire -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.7</version>
            <configuration>
                <skipTests>true</skipTests>
            </configuration>
        </plugin>
        <!-- enable scalatest -->
        <plugin>
            <groupId>org.scalatest</groupId>
            <artifactId>scalatest-maven-plugin</artifactId>
            <version>1.0</version>
            <configuration>
                <reportsDirectory>${project.build.directory}/surefire-reports</reportsDirectory>
                <junitxml>.</junitxml>
                <filereports>WDF TestSuite.txt</filereports>
            </configuration>
            <executions>
                <execution>
                    <id>test</id>
                    <goals>
                        <goal>test</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>

         <!--enable cobertura-->
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>cobertura-maven-plugin</artifactId>
            <version>2.7</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>clean</goal>
                        <goal>cobertura</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>

    </plugins>
</build>
<reporting>
    <plugins>
        <plugin>
            <groupId>org.scala-tools</groupId>
            <artifactId>maven-scala-plugin</artifactId>
            <configuration>
                <scalaVersion>${scala.version}</scalaVersion>
            </configuration>
        </plugin>

        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>cobertura-maven-plugin</artifactId>
            <version>2.7</version>
            <configuration>
                <formats>
                    <format>xml</format>
                </formats>
            </configuration>
        </plugin>
    </plugins>
</reporting>

我确实收到了一份覆盖率报告——报告中说没有覆盖任何内容，覆盖率为0%

现在我尝试了各种方法：我尝试了执行部分，我将构建部分的内容转移到了报告部分，反之亦然，我尝试了不同的Maven目标。这一切都是徒劳的——要么没有创建报告，要么声明覆盖率为0%

我甚至还试过Scoverage！但结果相似

---

所以我想我犯了一些基本的错误。有人能给我指一下吗？

经过多次尝试，我找到了解决方案。问题似乎在于构建部分中的maven scala插件依赖性。但是由于上面显示的pom有很多问题，我在这里发布了新版本，它可以正常工作。（至少对于一个非常小的示例项目来说，对于我真正更大的项目，我遇到了新的问题。）

4.0.0
沙箱
沙箱
1.0-快照
2.10.4
org.scala-lang
scala图书馆
${scala.version}
org.scalatest
比例测试2.10
2.2.4
测试
src/main/scala
src/test/scala
net.alchim31.maven
scala maven插件
3.1.6
编译
测试编译
-无名氏
org.apache.maven.plugins
maven surefire插件
2.18.1
真的
org.scalatest
scalatest maven插件
1
测试
测试
测试
org.scoverage
scoverage maven插件
1.1.1
${scala.version}
真的
org.scoverage
scoverage maven插件
1.1.1
${scala.version}
真的
报告

---

希望这对别人有帮助

谢谢，这节省了我的时间！

mvn clean install cobertura:cobertura -Dcobertura.report.format=xml

<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>sandbox</groupId>
<artifactId>sandbox</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
    <scala.version>2.10.4</scala.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.scala-lang</groupId>
        <artifactId>scala-library</artifactId>
        <version>${scala.version}</version>
    </dependency>

    <!-- Scalatest -->
    <dependency>
        <groupId>org.scalatest</groupId>
        <artifactId>scalatest_2.10</artifactId>
        <version>2.2.4</version>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <sourceDirectory>src/main/scala</sourceDirectory>
    <testSourceDirectory>src/test/scala</testSourceDirectory>
    <plugins>
        <plugin>
            <groupId>net.alchim31.maven</groupId>
            <artifactId>scala-maven-plugin</artifactId>
            <version>3.1.6</version>
            <executions>
                <execution>
                    <goals>
                        <goal>compile</goal>
                        <goal>testCompile</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <args>
                    <!-- work-around for https://issues.scala-lang.org/browse/SI-8358 -->
                    <arg>-nobootcp</arg>
                </args>
            </configuration>
        </plugin>

        <!-- disable Surefire -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.18.1</version>
            <configuration>
                <skipTests>true</skipTests>
            </configuration>
        </plugin>

        <!-- enable Scalatest -->
        <plugin>
            <groupId>org.scalatest</groupId>
            <artifactId>scalatest-maven-plugin</artifactId>
            <version>1.0</version>
            <executions>
                <execution>
                    <id>test</id>
                    <phase>test</phase>
                    <goals>
                        <goal>test</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>

        <!--enable SCoverage-->
        <plugin>
            <groupId>org.scoverage</groupId>
            <artifactId>scoverage-maven-plugin</artifactId>
            <version>1.1.1</version>
            <configuration>
                <scalaVersion>${scala.version}</scalaVersion>
                <aggregate>true</aggregate>
            </configuration>
        </plugin>

    </plugins>
</build>

<reporting>
    <plugins>
        <plugin>
            <groupId>org.scoverage</groupId>
            <artifactId>scoverage-maven-plugin</artifactId>
            <version>1.1.1</version>
            <configuration>
                <scalaVersion>${scala.version}</scalaVersion>
                <aggregate>true</aggregate>
            </configuration>
            <reportSets>
                <reportSet>
                    <reports>
                        <report>report</report>
                    </reports>
                </reportSet>
            </reportSets>
        </plugin>
    </plugins>
</reporting>