void setInFiles(def c) {
                    inFiles.from = c
                }
            }

            def files1 = files('a.txt', 'a.bin')
            def files2 = files('b.txt', 'b.bin')
            task merge(type: LegacyTask) {
                inFiles = files1
                inFiles = files(inFiles, files2).filter { f -> f.name.endsWith('.txt') }
            }
        """

            dependencies {
                implementation 'thing:lib:1.+'
            }

            task resolve1(type: ShowFilesTask) {
                inFiles.from(configurations.implementation)
            }
            task resolve2(type: ShowFilesTask) {
                inFiles.from(configurations.implementation)
            }
        """
        def configurationCache = newConfigurationCacheFixture()

        buildFile << """
            class ShowFilesTask extends DefaultTask {
                @InputFiles
                final ConfigurableFileCollection inFiles = project.files()
                @TaskAction
                def go() {
                    println "result = " + inFiles.files.name
                }
            }
        """
    }

    def taskTypeLogsArtifactCollectionDetails(TestFile buildFile = getBuildFile()) {

	}
	writeFile(t, incfg, data)
	return incfg
}

func writeOutFileList(t *testing.T, infiles []string, outdir, tag string) ([]string, string) {
	outfilelist := filepath.Join(outdir, tag+"outfilelist.txt")
	var sb strings.Builder
	cv := filepath.Join(outdir, "covervars.go")
	outfs := []string{cv}
	fmt.Fprintf(&sb, "%s\n", cv)
	for _, inf := range infiles {
		base := filepath.Base(inf)
		of := filepath.Join(outdir, tag+".cov."+base)

                out1 = file("b-1.txt")
                out2 = file("b-2.txt")
            }
            def files = objects.setProperty(RegularFile)
            files.add(a.out1)
            files.add(b.out2)
            tasks.register("c", InputFilesTask) {
                inFiles.from files
                outFile = file("out.txt")
            }
        """

        when:
        run("c")

                }
            }
            task producer(type: InputFilesTask) {
                outFile = layout.buildDirectory.file("out.txt")
                inFiles.from(configurations.implementation)
            }
            artifacts {
                implementation producer.outFile
            }
        """
        return buildFile
    }

            dependencies {
                compile files(producer.output)

                registerTransform(MakeSize) {
                    from.attribute(artifactType, 'directory')
                    to.attribute(artifactType, 'size')
                }
            }

            def transformed = configurations.compile.incoming.artifactView { attributes.attribute(artifactType, 'size') }.files

            task resolve(type: ShowFilesTask) {

		gccfiles = append(gccfiles, cfiles...)
		cfiles = nil
		if p.Standard && p.ImportPath == "runtime/cgo" {
			filter := func(files, nongcc, gcc []string) ([]string, []string) {
				for _, f := range files {
					if strings.HasPrefix(f, "gcc_") {
						gcc = append(gcc, f)
					} else {
						nongcc = append(nongcc, f)
					}
				}
				return nongcc, gcc
			}
			sfiles, gccfiles = filter(sfiles, sfiles[:0], gccfiles)

                        it.attribute(flavor, 'tasty')
                    }
                }.files

                task resolveView(type: ShowFilesTask) {
                    inFiles.from(view)
                }

                task broken(type: ShowFilesTask) {
                    inFiles.from(configurations.resolver)
                }
            }

            project(':app') {

            }.files

            dependencies {
                transformed files(intermediateFiles)
            }

            def transformedFiles = configurations.transformed.incoming.artifactView {
                attributes.attribute(color, 'red')
            }.files

            task resolveTransformed(type: ShowFileCollection) {
                files.from(transformedFiles)
            }