junit and hamcrest declaration

问题

I am using junit at 4.10 and declared hamcrest-core at 1.3 and hamcrest-library at 1.3. My question is are hamcrest-library and hamcrest-core embedded in junit 4.10. what about junit 4.11?

    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.10</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.hamcrest</groupId>
        <artifactId>hamcrest-core</artifactId>
        <version>1.3</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.hamcrest</groupId>
        <artifactId>hamcrest-library</artifactId>
        <version>1.3</version>
        <scope>test</scope>
    </dependency>

回答1:

If you browse to search.maven.org you can search for artifacts and see their dependencies. If you are using Eclipse wit the Maven plugin, you can also click Dependency Hierarchy in the POM editor.

Looking on the Maven website you can see that JUnit 4.11 depends on Hamcrest 1.3:

<dependencies>
    <dependency>
      <groupId>org.hamcrest</groupId>
      <artifactId>hamcrest-core</artifactId>
      <version>1.3</version>
      <scope>compile</scope>
    </dependency>
</dependencies>

Hamcrest library you have to add yourself.

回答2:

JUnit 4.10 & JUnit 4.11 (as depicted below):

   <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>

... ship with the hamcrest-core 1.1 and 1.3 respectively. You can see this for yourself by leveraging the dependency plugin's tree goal (running mvn dependency:tree):

$ mvn dependency:tree
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building testng 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.1:tree (default-cli) @ testng ---
[INFO] testng:testng:jar:1.0-SNAPSHOT
[INFO] \- junit:junit:jar:4.10:test
[INFO]    \- org.hamcrest:hamcrest-core:jar:1.1:test
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.483s
[INFO] Finished at: Fri Mar 29 12:07:22 MDT 2013
[INFO] Final Memory: 5M/81M
[INFO] ------------------------------------------------------------------------

As silly as this sounds, you need to include the appropriate hamcrest-library artefact to take advantage of the Hamcrest Matchers. Hopefully this helps...

来源：https://stackoverflow.com/questions/15660807/junit-and-hamcrest-declaration

标签

maven

junit

hamcrest