Hi,
I am not sure this is the right mailing-list.
Maybe I should have posted to the dev list. Anyway...
I have started working on new Maven plug-in last week and I have set up
unit tests using the testing-harness plugin.
I have problems with Maven injected fields, such as the Maven project.
I use the Maven libraries version 3.2.2, and the harness plugin in
version 3.2.0.
My mojo has an injected field...
@Parameter( defaultValue = "${project}", readonly = true )
private MavenProject project;
This field is correctly set when I run the plugin normally.
But it is null when I use the harness plugin. Here is the code in my test.
@Rule
public MojoRule rule = new MojoRule();
@Rule
public TestResources resources = new TestResources();
@Test( expected = MojoFailureException.class )
public void testWithoutAssertions() throws Exception {
File baseDir = this.resources.getBasedir( "project--invalid-app" );
File pom = new File( baseDir, "pom.xml" );
ValidateMojo mojo = (ValidateMojo) this.rule.lookupMojo(
"validate", pom );
mojo.execute();
}
The NPE occurs in the execute method.
The documentation indicates we have (or had) to use a stub. [0]
So, so far, I guess it makes sense (I guess, because unless you read
this page [0], it is not clear on the web site that injected fields will
not work).
The JIRA entry [1] states we can also use
MojoRule#lookupConfiguredMojo() to have a mojo configured with the
default settings.
But when I use it, that is to say...
ValidateMojo mojo = (ValidateMojo) this.rule.lookupConfiguredMojo(
baseDir, "validate" );
mojo.execute();
... I get the following exception.
java.lang.Exception: Unexpected exception,
expected<org.apache.maven.plugin.MojoFailureException> but
was<java.lang.IllegalArgumentException>
at
org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:31)
at
org.apache.maven.plugin.testing.MojoRule$2.evaluate(MojoRule.java:308)
at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:47)
at org.junit.rules.RunRules.evaluate(RunRules.java:18)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
*Caused by: java.lang.IllegalArgumentException: Invalid repository
system session: LocalRepositoryManager is not set.*
at
org.eclipse.aether.internal.impl.DefaultRepositorySystem.invalidSession(DefaultRepositorySystem.java:497)
at
org.eclipse.aether.internal.impl.DefaultRepositorySystem.validateSession(DefaultRepositorySystem.java:443)
at
org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:316)
at
org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:192)
at
org.apache.maven.project.DefaultProjectBuildingHelper.resolveExtensionArtifacts(DefaultProjectBuildingHelper.java:380)
at
org.apache.maven.project.DefaultProjectBuildingHelper.createProjectRealm(DefaultProjectBuildingHelper.java:239)
at
org.apache.maven.project.DefaultModelBuildingListener.buildExtensionsAssembled(DefaultModelBuildingListener.java:110)
at
org.apache.maven.model.building.ModelBuildingEventCatapult$1.fire(ModelBuildingEventCatapult.java:43)
at
org.apache.maven.model.building.DefaultModelBuilder.fireEvent(DefaultModelBuilder.java:1179)
at
org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:415)
at
org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:398)
at
org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:389)
at
org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:148)
at
org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:108)
at
org.apache.maven.plugin.testing.MojoRule.readMavenProject(MojoRule.java:329)
at
org.apache.maven.plugin.testing.MojoRule.lookupConfiguredMojo(MojoRule.java:352)
at
net.roboconf.maven.ValidateMojoTest.testValidProjectButInvalidApp(ValidateMojoTest.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:22)
... 18 more
=> Invalid repository system session: LocalRepositoryManager is not set.
I have been struggling with this the entire afternoon.
Any help would be appreciated.
I can submit the sources of the plugin if necessary.
Thanks,
Vincent.
[ 0 ] :
http://maven.apache.org/plugin-testing/maven-plugin-testing-harness/examples/complex-mojo-parameters.html
[ 1 ] : http://jira.codehaus.org/browse/MPLUGINTESTING-23
--
Vincent Zurczak
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