given:
        dependency 'org.test:buildB:1.0'
        buildB.file("buildSrc/settings.gradle") << """
            ${settings}
        """

        buildA.file("buildSrc/src/main/java/Thing.java") << "class Thing { }"

        when:
        execute(buildA, ":jar", [])

        then:

structuring-builds-2.png...

structuring-builds-1.png...

1. **<<sharing_build_logic_between_subprojects.adoc#sec:using_buildsrc,Multi-Project Builds using buildSrc>>** - where `buildSrc` is a subproject-like directory at the Gradle project root containing all the build logic.
2. **<<composite_builds.adoc#composite_builds,Composite Builds>>** - a build that includes other builds where `build-logic` is a build directory at the Gradle project root containing reusable build logic.

structuring-builds-3.png...

structuring-builds-5.png...

        def buildSrc = model.editableBuilds[0]
        buildSrc.buildIdentifier.rootDir == file("buildSrc")
        buildSrc.includedBuilds.empty
        buildSrc.editableBuilds.empty

        model.editableBuilds[1].is(included)

        def includedBuildSrc = model.editableBuilds[2]
        includedBuildSrc.buildIdentifier.rootDir == file("child/buildSrc")
        includedBuildSrc.includedBuilds.empty

abstract class AbstractMultiProjectJvmApplicationInitIntegrationTest extends AbstractJvmLibraryInitIntegrationSpec {
    protected BuildInitDsl buildDsl

    protected Language jvmLanguage

    void setupDslAndLanguage(BuildInitDsl buildDsl, Language jvmLanguage) {
        this.buildDsl = buildDsl
        this.jvmLanguage = jvmLanguage
    }

    @Override
    String subprojectName() {
        return null
    }

        dependency "org.test:buildB:1.0"

        createDirs("buildB", "buildB/buildSrc", "buildB/buildSrc/b1", "buildB/buildSrc/b2")
        buildB.file("buildSrc/settings.gradle") << """
            $settings
            include 'b1', 'b2'
        """
        buildB.file("buildSrc/build.gradle") << """
            allprojects { apply plugin: 'java' }

        idea()

        then:
        iprHasModules "buildA.iml",
            "b1/buildA-b1.iml",
            "../buildB/buildB.iml",
            "../buildB/b1/buildB-b1.iml",
            "../buildB/b2/b2.iml",
            "../buildC/buildC.iml",
            "../buildC/buildA/buildC-buildA.iml"

        imlHasDependencies "buildC-buildA", "buildA-b1", "buildB-b1"
    }

    @ToBeImplemented