def "reports imported BOM as a set of dependency constraints"() {
        def moduleC = mavenRepo.module('group', 'moduleC', '1.0').publish()
        def moduleB = mavenRepo.module('group', 'moduleB', '1.0').dependsOn(moduleC).publish()
        def moduleA = mavenRepo.module('group', 'moduleA', '2.0').dependsOn(moduleB).publish()
        mavenRepo.module('group', 'bom', '1.0')
                .hasType("pom")

        "1.9"      | "2.0"         | 'moduleId("myorg", "ModuleC", "2.0")' | true                 | "substitute project(':ModuleC') using module('myorg:ModuleC:1.9')"

    def "resolves available-at variant even if transitive dependencies are excluded"() {
        given:
        mavenHttpRepo.module('org', 'moduleB', '1.0')
            .dependsOn(mavenHttpRepo.module("org", "moduleA", "1.0"), exclusions: [[group: '*', module: '*']])
            .publish() // no Gradle Module metadata for this one because we don't support excludes on dependencies
        repository {
            'org:moduleA:1.0' {

        given:
        def repo = ivyRepo()
        def moduleA = repo.module('group', 'projectA', '1.2')
        moduleA.publish()
        def moduleB = repo.module('group', 'projectB', '9-beta')
        moduleB.publish()

        and:
        buildFile << """
repositories {
    ivy {
        artifactPattern "${repo.uri}/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]"
    }
}

        IvyModule moduleB = ivyRepo.module('b').dependsOn('c')
        IvyModule moduleA = ivyRepo.module('a').dependsOn('b')

        addExcludeRuleToModuleDependency(moduleA, 'b', excludePath1)
        addExcludeRuleToModuleDependency(moduleB, 'c', excludePath2)

        moduleB.publish()
        moduleC.publish()
        moduleA.publish()

        when:
        succeedsDependencyResolution()

        def module2 = registry.getModule("gradle-module-2")
        module1.allRequiredModules as List == [module1, module2]
        module2.allRequiredModules as List == [module2, module1]
    }

    def "supports cycles between optional modules"() {
        given:
        def module1Dir = createModule("module-1", properties(optional: 'gradle-optional-module,gradle-module-2'))

                runtimeOnly "org:bar"
            }
        """
        checkConfiguration("runtimeClasspath")

        when:
        module1.pom.expectGet()
        module1.artifact.expectGet()
        module2.pom.expectGet()
        module2.artifact.expectGet()

        run ":checkDeps"

        then:
        resolve.expectGraph {
            root(":", "org.test:test:1.9") {

        """

        when:
        parent.pom.expectGet()
        moduleA.pom.expectGet()
        moduleA.artifact.expectGet()
        moduleB.pom.expectGet()
        moduleB.artifact.expectGet()

        then:
        // have to run twice to trigger the failure, to parse the descriptor from the cache
        succeeds ":libs"

    }

    @Test
    @ToBeFixedForConfigurationCache
    void "transitive external dependency substituted with project dependency"() {
        mavenRepo.module("org.gradle", "module1").dependsOnModules("module2").publish()
        mavenRepo.module("org.gradle", "module2").publish()

        createDirs("project1", "project2")
        runEclipseTask("include 'project1', 'project2'", """
allprojects {
    apply plugin: "java"

    def resolve = new ResolveTestFixture(buildFile, "conf")

    def setup() {
        mavenRepo.module("myorg", "ModuleC", "2.0").publish()
        mavenRepo.module("myorg", "ModuleD", "2.0").publish()
        mavenRepo.module("myorg", "ModuleB", '1.0').dependsOn("myorg", "ModuleC", "2.0").publish()
        settingsFile << """
            rootProject.name = 'test'
        """
        resolve.prepare()
    }