when:
        fails ":resolve"

        then:
        failure.assertHasCause("Failed to transform bad-b.jar to match attributes {artifactType=size}")
        failure.assertHasCause("Failed to transform bad-c.jar to match attributes {artifactType=size}")
    }

    def "only one transformer execution per workspace"() {

        createDirs("lib", "app1", "app2")
        settingsFile << """

package org.gradle.internal.classpath.transforms;

import org.gradle.internal.classpath.ClasspathBuilder;
import org.gradle.internal.classpath.ClasspathEntryVisitor;
import org.gradle.internal.classpath.ClasspathWalker;
import org.gradle.internal.classpath.types.InstrumentationTypeRegistry;

import java.io.File;
import java.io.IOException;

When a user runs a Gradle build Gradle it uses transformed plugin jars. 
The whole transformation process normally happens on the first use of a build or when a plugin jar is added to the build script classpath.
We transform the jar and cache transformed jars for future use.

We transform plugins classpath, TestKit classpath and buildscript classes separately. 

    /**
     * The from attributes of the registered transform.
     */
    Map<String, String> getFromAttributes();

    /**
     * The to attributes of the registered transform.
     */
    Map<String, String> getToAttributes();

    /**
     * The file name of the input artifact that is about to be transformed.
     */
    String getArtifactName();

    /**

        Transformer<String, String> transformerA = Mock()
        Transformer<String, String> transformerB = Mock()

        transformerA.transform('original') >> 'a'
        transformerB.transform('a') >> 'b'

        transformer.add(transformerA)
        transformer.add(transformerB)

        expect:
        transformer.transform('original') == 'b'

    }

    def 'can use a Closure as a Transformer'() {
        when:

        this.typeRegistry = typeRegistry;
        this.transform = transform;
    }

    @Override
    public final void transform(File destination) {
        resultBuilder().accept(destination, builder -> {
            try {
                visitEntries(builder);
            } catch (FileException e) {
                // Badly formed archive, so discard the contents and produce an empty JAR

Shinsuke Sugaya <******@****.***> 1444529815 +0900

            TransformWorkspaceIdentity transformWorkspaceIdentity,
            Transform transform,
            ComponentIdentifier componentIdentifier
        ) {
            this.inputArtifact = inputArtifact;
            this.transformWorkspaceIdentity = transformWorkspaceIdentity;
            this.transform = transform;
            this.componentIdentifier = componentIdentifier;
        }

        @Override

 */

package org.gradle.internal.serialize.codecs.dm.transform

import org.gradle.api.file.FileCollection
import org.gradle.api.internal.artifacts.transform.BoundTransformStep
import org.gradle.api.internal.artifacts.transform.DefaultTransformDependencies
import org.gradle.api.internal.artifacts.transform.DefaultTransformUpstreamDependenciesResolver
import org.gradle.api.internal.artifacts.transform.TransformDependencies

        this.shouldLoadTransformedClass = shouldLoadTransformedClass;
        this.transform = transform;
        this.source = source;
        this.typeRegistry = typeRegistry;
    }

    @Override
    protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
        if (shouldLoadTransformedClass.test(name)) {