def same = new DefaultIvyArtifactName("name", "type", "ext", 'classifier')
        def differentName = new DefaultIvyArtifactName("other", "type", "ext", 'classifier')
        def differentType = new DefaultIvyArtifactName("name", "other", "ext", 'classifier')
        def differentExt = new DefaultIvyArtifactName("name", "type", "other", 'classifier')

        def differentType = new ProxyDispatchAdapter<Runnable>(dispatch, Runnable.class)
        def differentDispatch = new ProxyDispatchAdapter<ProxyTest>(Mock(Dispatch.class), ProxyTest.class)

        expect:
        ProxyTest proxy = adapter.getSource()
        strictlyEquals(proxy, other.getSource())
        proxy != differentType.getSource()
        proxy != differentDispatch.getSource()
    }

        Dependency differentType = Mock(Dependency.class)

        expect:
        dependency.contentEquals(dependency)
        dependency.contentEquals(equalDependency)
        !dependency.contentEquals(differentSource)
        !dependency.contentEquals(differentType)
    }

    def usesSourceFileCollectionToDetermineBuildDependencies() {

        def same = localArtifactIdentifier(componentId, "name", "type", "ext", 'classifier')
        def differentName = localArtifactIdentifier(componentId, "2", "type", "ext", 'classifier')
        def differentType = localArtifactIdentifier(componentId, "name", "2", "ext", 'classifier')
        def differentExt = localArtifactIdentifier(componentId, "name", "type", "2", 'classifier')

        def differentName = new DefaultModuleComponentArtifactIdentifier(componentId, "2", "type", "ext", 'classifier')
        def differentType = new DefaultModuleComponentArtifactIdentifier(componentId, "name", "2", "ext", 'classifier')
        def differentExt = new DefaultModuleComponentArtifactIdentifier(componentId, "name", "type", "2", 'classifier')

        expect:
        execute(unitOfWork)
        outOfDate(
            builder.withImplementation(ImplementationSnapshot.of("DifferentType", TestHashCodes.hashCodeFrom(1234))).build(),
            "The type of ${unitOfWork.displayName} has changed from 'org.gradle.internal.execution.UnitOfWork' to 'DifferentType'."
        )
    }

    def "out-of-date when any input files are added"() {