CommonizerIT: Implement additional test KT-46142 standalone native source set

^46142
Before this test, the behaviour was tested as integration test in the IDE.
This Gradle integration test will detect issues even earlier.

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/CommonizerIT.kt

@@ -244,7 +244,15 @@ class CommonizerIT : BaseGradleIT() {
 
     @Test
     fun `test KT-46234 intermediate source set with only one native target`() {
+        `test single native platform`("commonize-kt-46234-singleNativeTarget")
+    }
 
+    @Test
+    fun `test KT-46142 standalone native source set`() {
+        `test single native platform`("commonize-kt-46142-singleNativeTarget")
+    }
+
+    private fun `test single native platform`(project: String) {
         val posixInImplementationMetadataConfigurationRegex = Regex(""".*implementationMetadataConfiguration:.*([pP])osix""")
         val posixInIntransitiveMetadataConfigurationRegex = Regex(""".*intransitiveMetadataConfiguration:.*([pP])osix""")
 
@@ -258,7 +266,7 @@ class CommonizerIT : BaseGradleIT() {
                 line.matches(posixInIntransitiveMetadataConfigurationRegex)
             }
 
-        with(Project("commonize-kt-46234-singleNativeTarget")) {
+        with(Project(project)) {
             build(":p1:listNativePlatformMainDependencies", "-Pkotlin.mpp.enableIntransitiveMetadataConfiguration=false") {
                 assertSuccessful()
 

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-46142-singleNativeTarget/build.gradle.kts

@@ -0,0 +1,10 @@
+plugins {
+    kotlin("multiplatform") apply false
+}
+
+allprojects {
+    repositories {
+        mavenLocal()
+        mavenCentral()
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-46142-singleNativeTarget/gradle.properties

@@ -0,0 +1,3 @@
+kotlin.mpp.enableGranularSourceSetsMetadata=true
+kotlin.native.enableDependencyPropagation=false
+kotlin.mpp.enableIntransitiveMetadataConfiguration=true

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-46142-singleNativeTarget/p1/build.gradle.kts

@@ -0,0 +1,62 @@
+import org.jetbrains.kotlin.com.intellij.openapi.util.SystemInfo.*
+import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
+
+operator fun KotlinSourceSet.invoke(builder: SourceSetHierarchyBuilder.() -> Unit): KotlinSourceSet {
+    SourceSetHierarchyBuilder(this).builder()
+    return this
+}
+
+class SourceSetHierarchyBuilder(private val node: KotlinSourceSet) {
+    operator fun KotlinSourceSet.unaryMinus() = this.dependsOn(node)
+}
+
+plugins {
+    kotlin("multiplatform")
+}
+
+kotlin {
+
+    val nativePlatform = when {
+        isMac -> macosX64("nativePlatform")
+        isLinux -> linuxX64("nativePlatform")
+        isWindows -> mingwX64("nativePlatform")
+        else -> throw IllegalStateException("Unsupported host")
+    }
+
+    jvm()
+
+    val commonMain by sourceSets.getting
+    val jvmMain by sourceSets.getting
+    val nativePlatformMain by sourceSets.getting
+
+    commonMain {
+        -jvmMain
+        -nativePlatformMain
+    }
+
+    tasks.register("listNativePlatformMainDependencies") {
+        doLast {
+
+            val implementationMetadataConfigurationDependencies = project.configurations.getByName(
+                nativePlatformMain.implementationMetadataConfigurationName
+            ).files
+
+            val intransitiveMetadataConfigurationDependencies = project.configurations.findByName(
+                "nativePlatformMainIntransitiveDependenciesMetadata"
+            )?.files.orEmpty()
+
+            val dependencies = implementationMetadataConfigurationDependencies +
+                    intransitiveMetadataConfigurationDependencies
+
+            logger.quiet("NativePlatformMainDependency | Count: ${dependencies.size}")
+
+            implementationMetadataConfigurationDependencies.forEach { dependencyFile ->
+                logger.quiet("implementationMetadataConfiguration: ${dependencyFile.path}")
+            }
+
+            intransitiveMetadataConfigurationDependencies.forEach { dependencyFile ->
+                logger.quiet("intransitiveMetadataConfiguration: ${dependencyFile.path}")
+            }
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-46142-singleNativeTarget/p1/src/nativePlatformMain/kotlin/NativePlatformMain.kt

@@ -0,0 +1,7 @@
+@file:Suppress("unused")
+
+import platform.posix.usleep
+
+fun main() {
+    usleep(100)
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-46142-singleNativeTarget/settings.gradle.kts

@@ -0,0 +1,12 @@
+pluginManagement {
+    repositories {
+        mavenLocal()
+        gradlePluginPortal()
+    }
+    val kotlin_version: String by settings
+    plugins {
+        kotlin("multiplatform").version(kotlin_version)
+    }
+}
+
+include(":p1")