}
    retrieve.dependsOn(':a:retrieve')
}
"""

        when:
        module1.ivy.expectGet()
        module1.jar.expectGet()

        module2.ivy.expectHead()
        module2.ivy.sha1.expectGet()
        module2.ivy.expectGet()
        module2.jar.expectHead()
        module2.jar.sha1.expectGet()
        module2.jar.expectGet()

        then:
        succeeds 'retrieve'

        and:

        dependenciesMetadata[0].selector.version == "1.0"
    }

    def "add via map id propagate to the underlying dependency list"() {
        when:
        adapter.add group: "org.gradle.test", name: "module1", version: "1.0"

        then:
        dependenciesMetadata.size() == 1
        dependenciesMetadata[0].selector.group == "org.gradle.test"
        dependenciesMetadata[0].selector.module == "module1"

        given: "3 modules, where there are dependency relations such that module1 depends on module2 and module2 depends on module3"
        mavenRepo.module('org.test', 'module1', '1.0').publish()
        mavenRepo.module('org.test', 'module2', '1.0')
            .dependsOn('org.test', 'module1', '1.0')
            .publish()
        mavenRepo.module('org.test', 'module3', '1.0')

    }

    void "uses artifactUrls to resolve artifacts"() {
        given:
        def moduleA = mavenRepo().module('group', 'projectA', '1.2')
        def moduleB = mavenRepo().module('group', 'projectB', '9.1')
        moduleA.publish()
        moduleB.publish()

        def artifactsRepo = mavenRepo('artifactsRepo')
        // Create a module to get the correct module directory, but do not publish the module

        def repo1 = server.getRemoteIvyRepo("/repo1")
        def repo2 = server.getRemoteIvyRepo("/repo2")
        def moduleA = repo1.module('group', 'projectA')
        moduleA.publish()
        def missingModuleB = repo1.module('group', 'projectB')
        def moduleB = repo2.module('group', 'projectB')
        moduleB.publish()

        and:
        buildFile << """
            repositories {
                ivy {

        //Here we add a module with Gradle metadata which defines a variant that uses the same attributes declared in the build script (format: "custom").
        //The dependency to this module is then added using the rule and thus is matched correctly.
        mavenGradleRepo.module("org.test", "moduleC").withModuleMetadata().variant("anotherVariantWithFormatCustom", [format: "custom"]).publish()

        def repo1 = server.getRemoteIvyRepo("/repo1")
        def repo2 = server.getRemoteIvyRepo("/repo2")
        def module1 = repo1.module('group', 'projectA').publish()
        def module2 = repo2.module('group', 'projectA').publish()

        and:
        buildFile << """
            repositories {
                ivy {
                    url "${repo1.uri}"

    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")
        runTask("idea", "include 'project1', 'project2'", """
allprojects {
    apply plugin: "java"
    apply plugin: "idea"
}

Such modules, that only have a name as module description, are called _automatic module_ that export **all** their packages and can read **all** modules on the module path.

A third case are traditional libraries that provide no module information at all -- for example `commons-cli:commons-cli:1.4`.
Gradle puts such libraries on the classpath instead of the module path.
The classpath is then treated as one module (the so called _unnamed_ module) by Java.

    }

    def "can build module path"() {
        def pattern = new M2ResourcePattern("prefix/" + MavenPattern.M2_PATTERN)
        def module1 = DefaultModuleIdentifier.newId("group", "projectA")
        def module2 = DefaultModuleIdentifier.newId("org.group", "projectA")

        expect:
        pattern.toModulePath(module1).path == 'prefix/group/projectA'
        pattern.toModulePath(module2).path == 'prefix/org/group/projectA'
    }