[MPP] Add KotlinSDK to the set of predefined test SDKs

^KT-45145 Fixed

idea/testData/multiplatform/builtinsAndStdlib/dependencies.txt

@@ -5,6 +5,6 @@ MODULE js { platform=[JS] }
 jvm -> common { kind=DEPENDS_ON }
 js -> common { kind=DEPENDS_ON }
 
-common -> STDLIB_COMMON { kind=DEPENDENCY }
+common -> STDLIB_COMMON, KOTLIN_SDK { kind=DEPENDENCY }
 jvm -> STDLIB_JVM, KOTLIN_TEST, KOTLIN_TEST_JVM, JUNIT, MOCK_JDK { kind=DEPENDENCY }
-js -> STDLIB_JS { kind=DEPENDENCY }
+js -> STDLIB_JS, KOTLIN_SDK { kind=DEPENDENCY }

idea/testData/multiplatform/multiplatformLibrary/dependencies.txt

@@ -2,7 +2,7 @@ MODULE common { platform=[JVM, JS, Native]; root=common }
 MODULE jvm { platform=[JVM]; root=jvm; testRoot=jvmTest}
 MODULE js { platform=[JS]; root=js }
 
-common -> STDLIB_COMMON { kind=DEPENDENCY }
+common -> STDLIB_COMMON, KOTLIN_SDK { kind=DEPENDENCY }
 jvm -> common { kind=DEPENDS_ON }
 jvm -> STDLIB_JVM, KOTLIN_TEST, KOTLIN_TEST_JVM, JUNIT, MOCK_JDK { kind=DEPENDENCY }
-js -> common { kind=DEPENDS_ON }
+js -> common, KOTLIN_SDK { kind=DEPENDS_ON }

idea/testData/multiplatform/platformDependencyInCommon/dependencies.txt

@@ -5,6 +5,6 @@ MODULE js { platform=[JS] }
 MODULE common { platform=[JVM, JS] }
 
 jvm -> STDLIB_JVM, MOCK_JDK { kind=DEPENDENCY }
-js -> STDLIB_JS { kind=DEPENDENCY }
-common -> STDLIB_COMMON, STDLIB_JVM { kind=DEPENDENCY }
+js -> STDLIB_JS, KOTLIN_SDK { kind=DEPENDENCY }
+common -> STDLIB_COMMON, STDLIB_JVM, KOTLIN_SDK { kind=DEPENDENCY }
 jvm -> common { kind=DEPENDS_ON }

idea/testData/multiplatform/useCorrectBuiltIns/dependencies.txt

@@ -5,9 +5,11 @@ MODULE jvmWithSdk { platform=[JVM] }
 MODULE native { platform=[Native] }
 
 common -> STDLIB_COMMON { kind=DEPENDENCY }
+common -> KOTLIN_SDK { kind=DEPENDENCY }
 
 js -> common { kind=DEPENDS_ON }
 js -> STDLIB_JS { kind=DEPENDENCY }
+js -> KOTLIN_SDK { kind=DEPENDENCY }
 
 jvmNoSdk -> common { kind=DEPENDS_ON }
 jvmNoSdk -> STDLIB_JVM { kind=DEPENDENCY }

idea/testData/multiplatform/useCorrectBuiltIns/jvmNoSdk/jvmNoSdk.kt

@@ -5,7 +5,7 @@
 //
 fun jvmSpecific(args: Array<String>) {
     val x: Cloneable? = null
-    args.clone()
+    args.<!MISSING_DEPENDENCY_SUPERCLASS!>clone<!>()
 }
 
 //fun nativeSpecific() {

idea/tests/org/jetbrains/kotlin/idea/multiplatform/multiPlatformSetup.kt

@@ -15,13 +15,14 @@ import org.jetbrains.kotlin.checkers.utils.clearFileFromDiagnosticMarkup
 import org.jetbrains.kotlin.codegen.forTestCompile.ForTestCompileRuntime
 import org.jetbrains.kotlin.idea.framework.CommonLibraryKind
 import org.jetbrains.kotlin.idea.framework.JSLibraryKind
+import org.jetbrains.kotlin.idea.framework.KotlinSdkType
 import org.jetbrains.kotlin.idea.stubs.AbstractMultiModuleTest
 import org.jetbrains.kotlin.idea.stubs.createMultiplatformFacetM1
 import org.jetbrains.kotlin.idea.stubs.createMultiplatformFacetM3
 import org.jetbrains.kotlin.idea.test.ConfigLibraryUtil
 import org.jetbrains.kotlin.idea.test.PluginTestCaseBase
 import org.jetbrains.kotlin.idea.util.application.executeWriteCommand
-import org.jetbrains.kotlin.idea.util.projectStructure.getModuleDir
+import org.jetbrains.kotlin.idea.util.getProjectJdkTableSafe
 import org.jetbrains.kotlin.idea.util.sourceRoots
 import org.jetbrains.kotlin.platform.CommonPlatforms
 import org.jetbrains.kotlin.platform.TargetPlatform
@@ -93,19 +94,21 @@ fun AbstractMultiModuleTest.doSetup(projectModel: ProjectResolveModel) {
     }.toMap()
 
     for ((resolveModule, ideaModule) in resolveModulesToIdeaModules.entries) {
+        val directDependencies: Set<ResolveModule> = resolveModule.dependencies.mapTo(mutableSetOf()) { it.to }
+
         resolveModule.dependencies.closure(preserveOrder = true) { it.to.dependencies }.forEach {
-            when (val to = it.to) {
-                FullJdk -> ConfigLibraryUtil.configureSdk(ideaModule, PluginTestCaseBase.addJdk(testRootDisposable) {
-                    PluginTestCaseBase.jdk(TestJdkKind.FULL_JDK)
-                })
+            when (val dependency = it.to) {
+                is ResolveSdk -> {
+                    // Only set module SDK if it is specified in module's dependencies explicitly.
+                    // Otherwise the last transitive SDK dependency will be written as Module's SDK, which doesn't happen in the real IDE
+                    // This check is not lifted to capture an SDK dependency and avoid configuring it as a library or module one
+                    if (dependency in directDependencies)
+                        setUpSdkForModule(ideaModule, dependency)
+                }
 
-                MockJdk -> ConfigLibraryUtil.configureSdk(ideaModule, PluginTestCaseBase.addJdk(testRootDisposable) {
-                    PluginTestCaseBase.jdk(TestJdkKind.MOCK_JDK)
-                })
+                is ResolveLibrary -> ideaModule.addLibrary(dependency.root, dependency.name, dependency.kind)
 
-                is ResolveLibrary -> ideaModule.addLibrary(to.root, to.name, to.kind)
-
-                else -> ideaModule.addDependency(resolveModulesToIdeaModules[to]!!)
+                else -> ideaModule.addDependency(resolveModulesToIdeaModules[dependency]!!)
             }
         }
     }
@@ -123,6 +126,28 @@ fun AbstractMultiModuleTest.doSetup(projectModel: ProjectResolveModel) {
     }
 }
 
+private fun AbstractMultiModuleTest.setUpSdkForModule(ideaModule: Module, sdk: ResolveSdk) {
+    when (sdk) {
+        FullJdk -> ConfigLibraryUtil.configureSdk(ideaModule, PluginTestCaseBase.addJdk(testRootDisposable) {
+            PluginTestCaseBase.jdk(TestJdkKind.FULL_JDK)
+        })
+
+        MockJdk -> ConfigLibraryUtil.configureSdk(ideaModule, PluginTestCaseBase.addJdk(testRootDisposable) {
+            PluginTestCaseBase.jdk(TestJdkKind.MOCK_JDK)
+        })
+
+        KotlinSdk -> {
+            KotlinSdkType.setUpIfNeeded(testRootDisposable)
+            ConfigLibraryUtil.configureSdk(
+                ideaModule,
+                getProjectJdkTableSafe().findMostRecentSdkOfType(KotlinSdkType.INSTANCE) ?: error("Kotlin SDK wasn't created")
+            )
+        }
+
+        else -> error("Don't know how to set up SDK of type: ${sdk::class}")
+    }
+}
+
 private fun Module.collectSourceFolders(): List<String> = sourceRoots.map { it.path }
 
 private fun AbstractMultiModuleTest.doSetupProject(rootInfos: List<RootInfo>) {

idea/tests/org/jetbrains/kotlin/projectModel/Model.kt

@@ -171,20 +171,28 @@ sealed class KotlinTest(
     )
 }
 
+interface ResolveSdk
 
 object FullJdk : ResolveLibrary(
     "full-jdk",
     File("fake file for full jdk"),
     JvmPlatforms.defaultJvmPlatform,
     null
-)
+), ResolveSdk
 
 object MockJdk : ResolveLibrary(
     "mock-jdk",
     File("fake file for mock jdk"),
     JvmPlatforms.defaultJvmPlatform,
     null
-)
+), ResolveSdk
+
+object KotlinSdk : ResolveLibrary(
+    "kotlin-sdk",
+    File("fake file for kotlin sdk"),
+    CommonPlatforms.defaultCommonPlatform,
+    null,
+), ResolveSdk
 
 open class ResolveDependency(val to: ResolveModule, val kind: Kind) {
     open class Builder {

idea/tests/org/jetbrains/kotlin/projectModel/Parser.kt

@@ -22,6 +22,7 @@ open class ProjectStructureParser(private val projectRoot: File) {
         "STDLIB_COMMON" to ResolveLibrary.Builder(Stdlib.CommonStdlib),
         "FULL_JDK" to ResolveLibrary.Builder(FullJdk),
         "MOCK_JDK" to ResolveLibrary.Builder(MockJdk),
+        "KOTLIN_SDK" to ResolveLibrary.Builder(KotlinSdk),
         "KOTLIN_TEST_JS" to ResolveLibrary.Builder(KotlinTest.JsKotlinTest),
         "KOTLIN_TEST_JVM" to ResolveLibrary.Builder(KotlinTest.JvmKotlinTest),
         "KOTLIN_TEST" to ResolveLibrary.Builder(KotlinTest.JustKotlinTest),