}

    def "custom source sets are not added as source directories by default"() {

        buildFile.text = '''
apply plugin: 'java'

sourceSets {
    main {
        java { srcDirs = ['mainSources'] }
        resources { srcDirs = ['mainResources'] }
    }

    foo {
        java { srcDirs = ['fooSources'] }
        resources { srcDirs = ['fooResources'] }
    }

    test {

    File fooSource
    File mainSource
    File unknownSource

    SwiftDepsHandler.SwiftDeps original

    @Subject
    def swiftDepsHandler = new SwiftDepsHandler()

    def setup() {
        moduleSwiftDeps = tmpDir.file("module.swiftdeps")
        barSource = tmpDir.file("src/bar.swift").touch()
        fooSource = tmpDir.file("src/foo.swift").touch()
        mainSource = tmpDir.file("src/main.swift").touch()

    attributes {
        attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category, Category.VERIFICATION))
        attribute(VerificationType.VERIFICATION_TYPE_ATTRIBUTE, objects.named(VerificationType, VerificationType.MAIN_SOURCES))
    }
}

// A resolvable configuration to collect JaCoCo coverage data
def coverageDataPath = configurations.create('coverageDataPath') {
    visible = false
    canBeConsumed = false

    extendsFrom(aggregate)
    attributes {
        attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.VERIFICATION))
        attribute(VerificationType.VERIFICATION_TYPE_ATTRIBUTE, objects.named(VerificationType.MAIN_SOURCES))
    }
}

// A resolvable configuration to collect JaCoCo coverage data
val coverageDataPath by configurations.creating {
    isVisible = false
    isCanBeConsumed = false
    extendsFrom(aggregate)

    }

    @ToBeFixedForConfigurationCache
    def "can manually define Assembler source sets"() {
        given:
        helloWorldApp.mainSource.writeToDir(file("src/main"))
        helloWorldApp.getLibraryHeader().writeToDir(file("src/main"))
        helloWorldApp.librarySources[0].writeToDir(file("src/main"))

                }
            }
        """
        createDirs("library", "app")
        settingsFile << """
            rootProject.name = 'test'
            include 'library', 'app'
        """
        app.mainSource.writeToDir(file("app/src/main"))
        app.libraryHeader.writeToDir(file("library/src/main"))
        app.commonHeader.writeToDir(file("library/src/main"))
        app.librarySources.each {

        attributes.attribute(VerificationType.VERIFICATION_TYPE_ATTRIBUTE, objectFactory.named(VerificationType.class, VerificationType.MAIN_SOURCES));
        return this;
    }

    def "can manually define C++ source sets"() {
        given:
        helloWorldApp.library.headerFiles.each { it.writeToDir(file("src/shared")) }

        file("src/main/cpp/main.cpp") << helloWorldApp.mainSource.content
        file("src/main/cpp2/hello.cpp") << helloWorldApp.librarySources[0].content
        file("src/main/sum-sources/sum.cpp") << helloWorldApp.librarySources[1].content

        and:
        buildFile << """

    def "can manually define C source sets"() {
        given:
        helloWorldApp.library.headerFiles.each { it.writeToDir(file("src/shared")) }

        file("src/main/c/main.c") << helloWorldApp.mainSource.content
        file("src/main/c2/hello.c") << helloWorldApp.librarySources[0].content
        file("src/main/sum-sources/sum.c") << helloWorldApp.librarySources[1].content

        and:
        buildFile << """