Unit testing Android with Maven

问题:

I have a question about a android project that is build with Maven, We made it run our activity tests, but now we need it to run unit tests. The unit test is in the same project as the activity tests, how do i set it up in our pom.xml files?

This is the Parent Pom.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<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>andersen.project</groupId>
  <artifactId>Hello-parent</artifactId>
  <version>1.0</version>
  <packaging>pom</packaging>
  <name>Hello - Parent</name>

  <modules>
    <module>HelloWorld</module>
    <module>HelloWorldTest</module>
  </modules>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>com.google.android</groupId>
        <artifactId>android</artifactId>
        <version>2.2.1</version>
        <scope>provided</scope>
      </dependency>
      <dependency>
        <groupId>com.google.android</groupId>
        <artifactId>android-test</artifactId>
        <version>2.2.1</version>
        <scope>provided</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <build>
  <sourceDirectory>src</sourceDirectory>
  <testSourceDirectory>test</testSourceDirectory>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>com.jayway.maven.plugins.android.generation2</groupId>
          <artifactId>maven-android-plugin</artifactId>
          <version>2.8.3</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>2.3.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

this is the application pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<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>

  <parent>
    <groupId>andersen.project</groupId>
    <artifactId>Hello-parent</artifactId>
    <version>1.0</version>
  </parent>

  <groupId>andersen.project</groupId>
  <artifactId>helloworld</artifactId>
  <version>1.0</version>
  <packaging>apk</packaging>
  <name>HelloWorld - Application</name>

  <dependencies>
    <dependency>
      <groupId>com.google.android</groupId>
      <artifactId>android</artifactId>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>com.jayway.maven.plugins.android.generation2</groupId>
        <artifactId>maven-android-plugin</artifactId>
        <configuration>
          <androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
          <assetsDirectory>${project.basedir}/assets</assetsDirectory>
          <resourceDirectory>${project.basedir}/res</resourceDirectory>
          <nativeLibrariesDirectory>${project.basedir}/src/main/native</nativeLibrariesDirectory>
          <sdk>
            <platform>4</platform>
          </sdk>
          <deleteConflictingFiles>true</deleteConflictingFiles>
          <undeployBeforeDeploy>true</undeployBeforeDeploy>
        </configuration>
        <extensions>true</extensions>
      </plugin>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>1.5</source>
          <target>1.5</target>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

and this is the test pom.xml file

<?xml version="1.0" encoding="UTF-8"?>
<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>

  <parent>
    <groupId>andersen.project</groupId>
    <artifactId>Hello-parent</artifactId>
    <version>1.0</version>
  </parent>

  <groupId>andersen.project</groupId>
  <artifactId>helloworldtest</artifactId>
  <version>1.0</version>
  <packaging>apk</packaging>
  <name>HalloWorld - Integration tests</name>

  <dependencies>
    <dependency>
      <groupId>com.google.android</groupId>
      <artifactId>android</artifactId>
    </dependency>
    <dependency>
      <groupId>com.google.android</groupId>
      <artifactId>android-test</artifactId>
    </dependency>
    <dependency>
      <groupId>andersen.project</groupId>
      <artifactId>helloworld</artifactId>
      <type>apk</type>
      <version>1.0</version>
    </dependency>
    <dependency>
      <groupId>andersen.project</groupId>
      <artifactId>helloworld</artifactId>
      <type>jar</type>
      <version>1.0</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>com.jayway.maven.plugins.android.generation2</groupId>
        <artifactId>maven-android-plugin</artifactId>
        <configuration>
          <androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
          <assetsDirectory>${project.basedir}/assets</assetsDirectory>
          <resourceDirectory>${project.basedir}/res</resourceDirectory>
          <nativeLibrariesDirectory>${project.basedir}/src/main/native</nativeLibrariesDirectory>
          <sdk>
            <platform>4</platform>
          </sdk>
          <deleteConflictingFiles>true</deleteConflictingFiles>
          <undeployBeforeDeploy>true</undeployBeforeDeploy>
        </configuration>
        <extensions>true</extensions>
      </plugin>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>1.5</source>
          <target>1.5</target>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

Should i add the following text in the parent pom.xml?:

<dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.8.1</version>
  <scope>test</scope>
</dependency>

And add it to other poms?

when i run maven the output is:

Junit.framework does not exist

回答1:

Add the Surefire plugin to the test pom.xml. Surefire runs the unit tests.

回答2:

I faced the same problem. It was caused by misconfiguration in the parent pom. You have to remove the scope tag in the dependencyManagement section.

Like this:

<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>com.google.android</groupId>
      <artifactId>android</artifactId>
      <version>2.2.1</version>
    </dependency>
    <dependency>
      <groupId>com.google.android</groupId>
      <artifactId>android-test</artifactId>
      <version>2.2.1</version>
    </dependency>
  </dependencies>
</dependencyManagement>