Testkit Jacoco Coverage

Lance_Java · August 2, 2016, 9:39pm

I’m using the approach mentioned here to generate a gradle.properties file which I use in my testKit test

eg:

configurations {
	jacocoRuntime
}
dependencies {
	jacocoRuntime "org.jacoco:org.jacoco.agent:${jacoco.toolVersion}:runtime"
}
task createTestkitFiles {
	def outputDir = file("$buildDir/testkitFiles")

	inputs.files configurations.jacocoRuntime
	outputs.dir outputDir

	doLast {
		outputDir.mkdirs()
		file("$outputDir/testkit-gradle.properties").text = "org.gradle.jvmargs=-javaagent:${configurations.jacocoRuntime.asPath}=destfile=$buildDir/jacoco/test.exec"
	}
}

test.dependsOn createTestkitFiles

The contents of testkit-gradle.properties contains

org.gradle.jvmargs=-javaagent:C:\Users\Lance\.gradle\caches\modules-2\files-2.1\org.jacoco\org.jacoco.agent\0.7.6.201602180812\4205019e7f7cd429b1b35090cd14aa6c8444ba31\org.jacoco.agent-0.7.6.201602180812-runtime.jar=destfile=C:\code\gradle-maven-share\plugin\build/jacoco/test.exec

When I try to copy this to gradle.properties in a testkit test I get the following

    java.lang.IllegalStateException: An error occurred executing build with args ':project1:dependencies --stacktrace' in directory 'C:\Users\Lance\AppData\Local\Temp\junit6007038992566519310'
        at org.gradle.testkit.runner.internal.ToolingApiGradleExecutor.run(ToolingApiGradleExecutor.java:124)
        at org.gradle.testkit.runner.internal.DefaultGradleRunner.run(DefaultGradleRunner.java:270)
        at org.gradle.testkit.runner.internal.DefaultGradleRunner.build(DefaultGradleRunner.java:219)
        at com.lazan.gradlemavenshare.MavenSharePluginTest.Maven dependency is shared with gradle(MavenSharePluginTest.groovy:85)

        Caused by:
        org.gradle.tooling.GradleConnectionException: Could not execute build using Gradle installation 'C:\Applications\gradle-2.13'.
            at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:55)
            at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:29)
            at org.gradle.tooling.internal.consumer.ResultHandlerAdapter.onFailure(ResultHandlerAdapter.java:41)
            at org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:57)
            at org.gradle.testkit.jarjar.org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
            at org.gradle.testkit.jarjar.org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
            at java.lang.Thread.run(Thread.java:745)
            at org.gradle.tooling.internal.consumer.BlockingResultHandler.getResult(BlockingResultHandler.java:46)
            at org.gradle.tooling.internal.consumer.DefaultBuildLauncher.run(DefaultBuildLauncher.java:77)
            at org.gradle.testkit.runner.internal.ToolingApiGradleExecutor.run(ToolingApiGradleExecutor.java:100)
            ... 3 more

            Caused by:
            org.gradle.api.GradleException: Unable to start the daemon process.
            This problem might be caused by incorrect configuration of the daemon.
            For example, an unrecognized jvm option is used.
            Please refer to the user guide chapter on the daemon at https://docs.gradle.org/2.13/userguide/gradle_daemon.html
            Please read the following process output to find out more:
            -----------------------
            Error occurred during initialization of VM
            agent library failed to init: instrument
            Error opening zip file or JAR manifest missing : C:UsersLance.gradlecachesmodules-2

Lance_Java · August 2, 2016, 9:58pm

I think just writing my question in the forum was enough to see the problem.
It looks like a windows backslash issue, the following fixed it

String jacocoPath = configurations.jacocoRuntime.asPath.replace('\\', '/')
file("$outputDir/testkit-gradle.properties").text = "org.gradle.jvmargs=-javaagent:${jacocoPath}=destfile=$buildDir/jacoco/test.exec"

philbert · August 24, 2016, 2:45pm

Are you using the GradleRunner? If so, how did you get it to pick up the file $outputDir/testkit-gradle.properties?

Lance_Java · August 24, 2016, 8:20pm

Yes, I got it all working in the end… see the following lines

Here I create testkit-gradle.properties

github.com

uklance/gradle-maven-share/blob/master/build.gradle#L65


	def outputDir = file("$buildDir/testkit")


	inputs.files sourceSets.main.runtimeClasspath
	inputs.files configurations.jacocoRuntime
	outputs.dir outputDir


	doLast {
		outputDir.mkdirs()
		String jacocoPath = configurations.jacocoRuntime.asPath.replace('\\', '/')
		file("$outputDir/testkit-classpath.txt").text = sourceSets.main.runtimeClasspath.join("\n")
		file("$outputDir/testkit-gradle.properties").text = "org.gradle.jvmargs=-javaagent:${jacocoPath}=destfile=$buildDir/jacoco/test.exec"
	}
}


pluginBundle {
	website = 'https://github.com/uklance/gradle-maven-share'
	vcsUrl = 'https://github.com/uklance/gradle-maven-share.git'
	description = 'Migrate from Maven to Gradle by sharing dependencies and more'
	tags = ['maven', 'migrate', 'dependencies']


	plugins {

And here I copy testkit-gradle.properties to gradle.properties in the GradelRunner directory

github.com

uklance/gradle-maven-share/blob/master/src/test/groovy/com/lazan/gradlemavenshare/MavenSharePluginTest.groovy#L26


	
	def setup() {
		URL classpathUrl = getResourceUrl("testkit-classpath.txt")
		List<File> classpathFiles = classpathUrl.readLines().collect { new File(it) }
		
		classpathString = classpathFiles
			.collect { it.absolutePath.replace('\\', '/') } // escape backslashes in Windows paths
			.collect { "'$it'" }
			.join(", ")
			
		writeFile('gradle.properties', getResourceUrl("testkit-gradle.properties").text)
	}


	def "Single project maven dependencies are shared with gradle"() {
		given:
		writeGradleSingle("build.gradle")
		writePom("pom.xml", "project1", """
			<dependency>
				<groupId>net.sourceforge.saxon</groupId>
				<artifactId>saxon</artifactId>
				<version>9.1.0.8</version>

philbert · August 25, 2016, 5:50am

Ah great @Lance_Java! That’s just what I was looking for! Thanks!

Edit:
Just for the record, the answer to my question is this line:

github.com

uklance/gradle-maven-share/blob/master/build.gradle#L33


dependencies {
	compile 'org.apache.maven:maven-model:3.3.9'
	compile localGroovy()
	compile gradleApi()
	testCompile 'junit:junit:4.12'
	testCompile 'org.mockito:mockito-all:1.10.19'
	testCompile gradleTestKit()
	testCompile('org.spockframework:spock-core:1.0-groovy-2.4') {
    exclude module: 'groovy-all'
}
	testRuntime files("$buildDir/testkit")
	jacocoRuntime "org.jacoco:org.jacoco.agent:${jacoco.toolVersion}:runtime"
}


jacocoTestReport {
	reports {
		xml.enabled = true
		html.enabled = true
	}
}