private final DefaultCopySpec spec = new DefaultCopySpec(fileCollectionFactory, objectFactory, instantiator, TestFiles.patternSetFactory)

    private List<String> getTestSourceFileNames() {
        ['first', 'second']
    }

    private List<File> getAbsoluteTestSources() {
        testSourceFileNames.collect { new File(testDir.testDirectory, it) }
    }

    def "from List"() {