result.assertTasksNotSkipped(":b:producer", ":c:producer", ":a:resolve")
        transformed("b.jar", "c.jar")
        outputContains("result = [b.jar.green, c.jar.green]")

        when:
        succeeds(":a:resolve")

        then: // no change, should be up to date
        result.assertTasksNotSkipped(":a:resolve")
        transformed()
        outputContains("result = [b.jar.green, c.jar.green]")

        when:

        output.count("Transformed") == 2
        isTransformed("lib1.jar", "lib1.jar.value")
        isTransformed("lib2.jar", "lib2.jar.value")

        when:
        succeeds ":util:resolve", ":app:resolve"

        then:
        output.count("files 1: [lib1.jar.value, lib2.jar.value]") == 2

        output.count("Transformed") == 0

        where:
        type           | value

    }

    // Called from transformed DSL rules
    public void all(DeferredModelAction configAction) {
        mutateChildren(ModelActionRole.Initialize, elementType, configAction);
    }

    @Override
    public void beforeEach(Action<? super T> configAction) {
        mutateChildren(ModelActionRole.Defaults, elementType, "beforeEach()", configAction);
    }

    // Called from transformed DSL rules

    String getConsumerProjectPath();

    /**
     * The component identifier of the transformed artifact.
     */
    ComponentIdentifier getComponentId();

    /**
     * Full set of attributes of the artifact before the transform.
     */
    Map<String, String> getSourceAttributes();

    /**
     * Target attributes of the transformed artifact.
     * <p>

        then:
        result == transformed

        1 * attributeMatcher.matches(_, _, _) >> Collections.emptyList()
        1 * consumerProvidedVariantFinder.findTransformedVariants(variants, requestedAttributes) >> transformedVariants
        1 * factory.asTransformed(variant, transformedVariants[0].getTransformedVariantDefinition(), dependenciesResolverFactory, transformedVariantFactory) >> transformed
        0 * attributeMatcher._
    }

    def attachesLogLevelToTextOutputEvent() {
        StyledTextOutputEvent event = Mock()
        StyledTextOutputEvent transformed = Mock()

        when:
        listener.onOutput(event)

        then:
        1 * event.withLogLevel(LogLevel.LIFECYCLE) >> transformed
        1 * target.onOutput(transformed)
        0 * target._
    }

    def doesNotChangeLogLevelWhenEventAlreadyHasALogLevel() {

         *
         * @param original the original JAR or classes directory
         * @param transformed the transformed JAR or classes directory
         * @return this builder
         */
        public Builder add(File original, File transformed) {
            originals.add(original);
            if (!original.equals(transformed)) {

                    Files.exists(transformedDir.resolve("transformed/${INSTRUMENTATION_CLASSPATH_MARKER.fileName}")) ||
                    Files.exists(transformedDir.resolve("transformed/$ANALYSIS_OUTPUT_DIR/${INSTRUMENTATION_CLASSPATH_MARKER.fileName}")) ||

            ivySerializationHelper.writeRealisedConfigurationsData(encoder, transformed, deduplicationDependencyCache);
        } else if (transformed instanceof RealisedMavenModuleResolveMetadata) {
            mavenSerializationHelper.writeRealisedVariantsData(encoder, transformed);
            mavenSerializationHelper.writeRealisedConfigurationsData(encoder, transformed, deduplicationDependencyCache);
        } else {

    public enum MarkerResource {
        // The transformed marker resource is an empty file to reduce archive size in the most common case.
        TRANSFORMED(new byte[0]),
        // Not transformed marker resource is a 1-byte file with a single "N" symbol.
        NOT_TRANSFORMED(new byte[]{'N'});

        public static final String RESOURCE_NAME = TransformReplacer.class.getName() + ".transformed";