on { displayNameOf(inputFile) } doReturn "displayNameOf(inputFile)"
                },
                ConfigurationCacheFingerprint.InputFile(
                    inputFile,
                    originalFileHash
                )
            ),
            equalTo("file 'displayNameOf(inputFile)' has been replaced by a directory")

                @InputFile inputFile
                @OutputFile outputFile

                @TaskAction copy() {
                    outputFile.parentFile.mkdirs()
                    outputFile.text = inputFile.text
                }
            }
            task customTask(type: NonCacheableTask) {
                inputFile = file("input.txt")

            fqid == 'validation:property-validation:annotation-invalid-in-context'
            contextualLabel == 'Type \'MyTransformAction\' property \'inputFile\' is annotated with invalid property type @InputFile'
            details == 'The \'@InputFile\' annotation cannot be used in this context'
            solutions == [
                'Remove the property',

                @ValidationProblem inputFile

                @TaskAction void execute() {
                    println "Executed"
                }
            }

            task invalid(type: InvalidTask)
        """

        expectThatExecutionOptimizationDisabledWarningIsDisplayed(executer, dummyValidationProblem('InvalidTask', 'inputFile'), 'id', 'section')

        when:

                    outputFile.text = "produced"
                }
            }

            task consumer {
                def inputFile = file("output.txt")
                inputs.files(inputFile)
                doLast {
                    println "Hello " + inputFile.text
                }
            }
        """

        when:
        runAndFail("producer", "consumer")
        then:

            error(missingNormalizationStrategyConfig { type('MyTask').property('inputFile').annotatedWith('InputFile') }, 'validation_problems', 'missing_normalization_annotation'),

                void execute() {
                    def buildDirectory = projectLayout.buildDirectory
                    inputFiles.files.each { File inputFile ->
                        def outputFile = buildDirectory.file(inputFile.name + ".out").get().asFile
                        GFileUtils.copyFile(inputFile, outputFile)
                    }
                }
            }
            allprojects {

            }
        }
    }

    def "single root file are represented as roots"() {
        given:
        withBuildCache()
        file('inputFile').text = 'inputFile'
        buildScript """
            task copy(type:Copy) {
               from 'inputFile'
               into 'destDir'
            }
        """
        when:
        succeeds("copy")

        then:

        LocalState        | '@LocalState'                                              | FileCollection | null
        InputFile         | '@InputFile @PathSensitive(PathSensitivity.NONE)'          | File           | "new File(\"input.txt\")"
        InputFiles        | '@InputFiles @PathSensitive(PathSensitivity.NAME_ONLY)'    | Set            | "new HashSet()"

                    return "an input to $workDisplayName has changed"
                }
            }
            is ConfigurationCacheFingerprint.InputFile -> input.run {
                return when (checkFileUpToDateStatus(file, hash)) {
                    FileUpToDateStatus.ContentsChanged -> "file '${displayNameOf(file)}' has changed"