assertEquals(1, StringUtils.countMatches(result.output, "Found non-empty test files dir"))
        assertEquals(1, StringUtils.countMatches(result.output, "Failed to stop service 'testFilesCleanupBuildService'"))
        result.output.assertContains("successful-test-with-leftover/build/tmp/teŝt files/leftover")

        assertLeftoverFilesCleanedUpEventually("successful-test-with-leftover/build/tmp/teŝt files")
    }

        project.gradle.taskGraph.whenReady {
            val testFilesCleanupService = project.gradle.sharedServices.registerIfAbsent("testFilesCleanupBuildService", TestFilesCleanupService::class.java) {
                parameters.rootBuildDir = project.layout.buildDirectory
                parameters.projectStates.putAll(globalExtension.projectStates)