}
                    project(":v2") {
                        version = "2.0"
                    }
                """
            )
            withDirectory("v1/src/main").v1()
            withDirectory("v2/src/main").v2()
            val sourceRoots = if (File(withDirectory("v2/src/main"), "java").exists()) {
                "v2/src/main/java"
            } else {

        checkBinaryCompatibleKotlin(
            v1 = existingSource,
            v2 = internalSource
        ).assertEmptyReport()
    }

    @Test
    fun `existing internal members made public appear as added`() {

        checkNotBinaryCompatibleKotlin(
            v1 = internalSource,
            v2 = publicSource
        ).apply {
            assertHasErrors(

    val googleHttpClient = "com.google.http-client:google-http-client"
    val googleHttpClientGson = "com.google.http-client:google-http-client-gson"
    val googleHttpClientApacheV2 = "com.google.http-client:google-http-client-apache-v2"
    val googleOauthClient = "com.google.oauth-client:google-oauth-client"
    val gradleIdeStarter = "org.gradle.buildtool.internal:gradle-ide-starter:$gradleIdeStarterVersion"

                            public void setSourceCompatibility(String value) {
                            }
                        }
                    """
                )
            },
            v2 = {
                withFile(
                    "java/com/example/Task.java",
                    """
                        package com.example;
                        import org.gradle.api.provider.Property;

        operator fun String.invoke(p: String, block: String.() -> Unit) = Unit

    """

    @Test
    fun `new top-level kotlin members`() {

        checkNotBinaryCompatibleKotlin(
            v2 = """

           $publicKotlinMembers

            const val cathedral = "cathedral"

            """
        ) {

            assertHasNoInformation()
            assertHasNoWarning()