result.assertTaskSkipped(":generateSwiftPmManifest")

        when:
        file("app/build.gradle").text = """"""
        run("generateSwiftPmManifest")

        then:
        result.assertTaskNotSkipped(":generateSwiftPmManifest")

        when:
        run("generateSwiftPmManifest")

        then:
        result.assertTaskSkipped(":generateSwiftPmManifest")
    }

                id 'swift-library'
            }
            dependencies {
                implementation 'dep:dep:1.0'
            }
"""

        when:
        fails("generateSwiftPmManifest")

        then:
        failure.assertHasCause("Cannot determine the Git URL for dependency on dep:dep.")
    }

    def "export fails when file dependency is present"() {
        given:

    def "adds generate task"() {
        given:
        project.pluginManager.apply(SwiftPackageManagerExportPlugin)

        expect:
        def generateManifest = project.tasks['generateSwiftPmManifest']
        generateManifest instanceof GenerateSwiftPackageManagerManifest
        generateManifest.manifestFile.get().asFile == project.file("Package.swift")
    }

        buildFile << """
            plugins {
                id 'swiftpm-export'
                id 'swift-library'
            }
            tasks.generateSwiftPmManifest.manifestFile = file('generated/thing.swift')
"""

        when:
        run("generateSwiftPmManifest")

        then:
        file("generated/thing.swift").assertIsFile()
        file("Package.swift").assertDoesNotExist()
    }

                id 'xctest'
            }
"""
        def lib = new SwiftLib()
        lib.writeToProject(testDirectory)
        file("src/test/swift/test.swift") << "// test"

        when:
        run("generateSwiftPmManifest")

        then:
        file("Package.swift").text == """// swift-tools-version:4.0
//
// GENERATED FILE - do not edit
//
import PackageDescription

let package = Package(
    name: "test",

        lib.privateHeaders.writeToSourceDir(testDirectory.file("src/main/cpp"))
        lib.publicHeaders.writeToProject(testDirectory)
        file("src/test/cpp/test.cpp") << "// test"

        when:
        run("generateSwiftPmManifest")

        then:
        file("Package.swift").text == """// swift-tools-version:4.0
//
// GENERATED FILE - do not edit
//
import PackageDescription

let package = Package(
    name: "test",

        this.versionParser = versionParser;
    }

    @Override
    public void apply(final Project project) {
        final GenerateSwiftPackageManagerManifest manifestTask = project.getTasks().create("generateSwiftPmManifest", GenerateSwiftPackageManagerManifest.class);
        manifestTask.getManifestFile().set(project.getLayout().getProjectDirectory().file("Package.swift"));