public static final GradleVersion GRADLE_VERSION_34 = GradleVersion.version("3.4")

    def "test launcher api fires progress events"() {
        given:
        collectDescriptorsFromBuild()
        events.assertIsABuild()

        when:
        launchTests(testDescriptors("example.MyTest"));

        then:
        events.trees == events.tasks

        events.tests.size() == (supportsEfficientClassFiltering() ? 10 : 14)
    }

    def "fails with meaningful error when requested tests not found"() {
        given:
        collectDescriptorsFromBuild()
        and:
        testClassRemoved()
        when:
        launchTests { TestLauncher launcher ->
            launcher.withJvmTestClasses("org.acme.NotExistingTestClass")

        def collect = events.tests.collect { it.descriptor }
        !findTestDescriptors(collect, testInfo.className, testInfo.methodName, testInfo.task, testInfo.displayName).isEmpty()
    }


    void collectDescriptorsFromBuild() {
        try {
            withConnection {
                ProjectConnection connection ->
                    connection.newBuild().forTasks('build')
                        .withArguments("--continue")