println "display-name: " + sources.displayName
                        println "to-string: " + sources.toString()
                    }
                }
            }
        }
        apply plugin: Rules
        """

        expect:
        succeeds "printTask"
        output.contains("name: fss")
        output.contains("display-name: FunctionalSourceSet 'fss'")

    @Test
    void defaultValues() {
        expect:
        assertThat(sourceSet.scala, instanceOf(DefaultSourceDirectorySet))
        assertThat(sourceSet.scala, isEmpty())
        assertThat(sourceSet.scala.displayName, equalTo('<set-display-name> Scala source'))

     *
     * The executor will collect failures thrown by actions and rethrow when the executor is stopped.
     *
     * @param displayName The display name for the this executor. Used for thread names, logging and error message.
     * @return The executor.
     */
    ManagedExecutor create(String displayName);

    /**

     * a human each child operation of a given operation.
     */
    String getName();

    /**
     * Returns a human consumable display name for the operation. This display name should generally provide enough context
     * to uniquely identify the operation to a human.
     *
     * @return The display name of the operation
     */
    String getDisplayName();

    /**
     * Returns the id of the parent of the operation, if any.

                display = ParameterDisplay.PROMPT,
                allowEmpty = true
            )
            text(
                "confirmationCode",
                "",
                label = "Confirmation Code",
                description = "Enter the value '$requiredConfirmationCode' (no quotes) to confirm the promotion",
                display = ParameterDisplay.PROMPT,

     * Returns the location of this resource.
     */
    ResourceLocation getLocation();

    /**
     * A long display name for this resource. The display name must use absolute paths and assume no context.
     */
    DisplayName getLongDisplayName();

    /**
     * A short display name for this resource. The display name may use relative paths.
     */
    DisplayName getShortDisplayName();

    /**

    def collection = new DefaultConfigurableFileCollection("<display>", fileResolver, taskDependencyFactory, patternSetFactory, host)

    @Override
    AbstractFileCollection containing(File... files) {
        def resolver = Stub(FileResolver)
        _ * resolver.resolve(_) >> { File f -> f }
            return new DefaultConfigurableFileCollection("<display>", resolver, taskDependencyFactory, patternSetFactory, host).from(files)
    }

 *
 * @since 2.4
 */
@NonNullApi
public interface InternalTestDescriptor extends InternalOperationDescriptor {
    /**
     * Returns the display name of the test.
     *
     * @return The display name of the test
     * @since 8.8
     */
    String getTestDisplayName();

     *
     * @param target The file to be locked.
     * @param options The lock options.
     * @param targetDisplayName A display name for the target file. This is used in log and error messages.
     * @param operationDisplayName A display name for the operation being performed on the target file. This is used in log and error messages.
     */

        if (signatureFile != null) {
            return shortenPath + " (signature: " + shortenPath(signatureFile) + ")";
        }
        return shortenPath;
    }

    // Shortens the path for display the user
    private String shortenPath(File file) {
        Path path = file.toPath();
        try {
            Path relativize = gradleUserHome.relativize(path);