Get rid of KTUsefulTestCase, improve stability of the tests

plugins/scripting/scripting-compiler/build.gradle.kts

@@ -7,8 +7,6 @@ plugins {
 }
 
 dependencies {
-    testRuntimeOnly(intellijDep()) // Should come before compiler, because of "progarded" stuff needed for tests
-
     compileOnly(project(":compiler:frontend"))
     compileOnly(project(":compiler:frontend.java"))
     compileOnly(project(":compiler:psi"))
@@ -35,6 +33,7 @@ dependencies {
     testCompile(commonDep("junit:junit"))
 
     testImplementation(intellijCoreDep()) { includeJars("intellij-core") }
+    testRuntimeOnly(intellijDep()) { includeJars("jps-model") }
 }
 
 sourceSets {
@@ -58,7 +57,7 @@ javadocJar()
 
 testsJar()
 
-projectTest {
+projectTest(parallel = true) {
     dependsOn(":dist")
     workingDir = rootDir
     systemProperty("kotlin.test.script.classpath", testSourceSet.output.classesDirs.joinToString(File.pathSeparator))

plugins/scripting/scripting-compiler/tests/org/jetbrains/kotlin/scripting/compiler/plugin/testUtil.kt

@@ -223,4 +223,14 @@ internal fun <R> withDisposable(body: (Disposable) -> R) {
     }
 }
 
+class TestDisposable : Disposable {
+    @Volatile
+    var isDisposed = false
+        private set
+
+    override fun dispose() {
+        isDisposed = true
+    }
+}
+
 

plugins/scripting/scripting-compiler/tests/org/jetbrains/kotlin/scripting/compiler/test/CollectScriptCompilationDependenciesTest.kt

@@ -5,25 +5,28 @@
 
 package org.jetbrains.kotlin.scripting.compiler.test
 
+import com.intellij.openapi.Disposable
 import junit.framework.TestCase
 import org.jetbrains.kotlin.cli.common.config.addKotlinSourceRoot
 import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
 import org.jetbrains.kotlin.cli.jvm.config.jvmClasspathRoots
 import org.jetbrains.kotlin.script.loadScriptingPlugin
+import org.jetbrains.kotlin.scripting.compiler.plugin.TestDisposable
 import org.jetbrains.kotlin.scripting.configuration.ScriptingConfigurationKeys
 import org.jetbrains.kotlin.scripting.definitions.ScriptDefinition
 import org.jetbrains.kotlin.test.ConfigurationKind
 import org.jetbrains.kotlin.test.KotlinTestUtils
 import org.jetbrains.kotlin.test.TestJdkKind
-import org.jetbrains.kotlin.test.testFramework.KtUsefulTestCase
 import java.io.File
 import kotlin.script.experimental.host.ScriptingHostConfiguration
 import kotlin.script.experimental.jvm.defaultJvmScriptingHostConfiguration
 
 private const val testDataPath = "plugins/scripting/scripting-compiler/testData/compiler/collectDependencies"
 
-class CollectScriptCompilationDependenciesTest : KtUsefulTestCase() {
+class CollectScriptCompilationDependenciesTest : TestCase() {
+
+    protected val testRootDisposable: Disposable = TestDisposable()
 
     fun testCascadeImport() {
         runTest("imp_imp_leaf.req1.kts", listOf("imp_leaf.req1.kts", "leaf.req1.kts"))

plugins/scripting/scripting-compiler/tests/org/jetbrains/kotlin/scripting/compiler/test/ScriptCliCompilationTest.kt

@@ -5,19 +5,21 @@
 
 package org.jetbrains.kotlin.scripting.compiler.test
 
+import com.intellij.openapi.Disposable
+import junit.framework.TestCase
 import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys.MESSAGE_COLLECTOR_KEY
 import org.jetbrains.kotlin.cli.common.ExitCode
 import org.jetbrains.kotlin.cli.common.messages.MessageCollector
 import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
 import org.jetbrains.kotlin.script.loadScriptingPlugin
+import org.jetbrains.kotlin.scripting.compiler.plugin.TestDisposable
 import org.jetbrains.kotlin.scripting.compiler.plugin.TestMessageCollector
 import org.jetbrains.kotlin.scripting.configuration.ScriptingConfigurationKeys
 import org.jetbrains.kotlin.scripting.definitions.ScriptDefinition
 import org.jetbrains.kotlin.test.ConfigurationKind
 import org.jetbrains.kotlin.test.KotlinTestUtils
 import org.jetbrains.kotlin.test.TestJdkKind
-import org.jetbrains.kotlin.test.testFramework.KtUsefulTestCase
 import org.jetbrains.kotlin.utils.PathUtil
 import org.junit.Assert
 import java.io.File
@@ -29,7 +31,9 @@ import kotlin.script.experimental.jvm.*
 
 private const val testDataPath = "plugins/scripting/scripting-compiler/testData/cliCompilation"
 
-class ScriptCliCompilationTest : KtUsefulTestCase() {
+class ScriptCliCompilationTest : TestCase() {
+
+    protected val testRootDisposable: Disposable = TestDisposable()
 
     fun testPrerequisites() {
         Assert.assertTrue(thisClasspath.isNotEmpty())

plugins/scripting/scripting-compiler/tests/org/jetbrains/kotlin/scripting/compiler/test/ScriptTemplateTest.kt

@@ -7,6 +7,7 @@
 package org.jetbrains.kotlin.scripting.compiler.test
 
 import com.intellij.openapi.util.Disposer
+import junit.framework.TestCase
 import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys
 import org.jetbrains.kotlin.cli.common.messages.*
 import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles
@@ -24,7 +25,6 @@ import org.jetbrains.kotlin.scripting.resolve.KotlinScriptDefinitionFromAnnotate
 import org.jetbrains.kotlin.test.ConfigurationKind
 import org.jetbrains.kotlin.test.KotlinTestUtils
 import org.jetbrains.kotlin.test.TestJdkKind
-import org.jetbrains.kotlin.test.testFramework.KtUsefulTestCase
 import org.jetbrains.kotlin.utils.PathUtil
 import org.jetbrains.kotlin.utils.tryConstructClassFromStringArgs
 import org.junit.Assert
@@ -48,7 +48,7 @@ import kotlin.script.templates.standard.ScriptTemplateWithArgs
 // TODO: the contetnts of this file should go into ScriptTest.kt and replace appropriate xml-based functionality,
 // as soon as the the latter is removed from the codebase
 
-class ScriptTemplateTest : KtUsefulTestCase() {
+class ScriptTemplateTest : TestCase() {
     fun testScriptWithParam() {
         val messageCollector = TestMessageCollector()
         val aClass = compileScript("fib.kts", ScriptWithIntParam::class, null, messageCollector = messageCollector)

plugins/scripting/scripting-compiler/tests/org/jetbrains/kotlin/scripting/compiler/test/ScriptTest.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.scripting.compiler.test
 
 import com.intellij.openapi.util.Disposer
+import junit.framework.TestCase
 import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys
 import org.jetbrains.kotlin.cli.common.messages.*
 import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles
@@ -20,7 +21,6 @@ import org.jetbrains.kotlin.scripting.definitions.StandardScriptDefinition
 import org.jetbrains.kotlin.test.ConfigurationKind
 import org.jetbrains.kotlin.test.KotlinTestUtils
 import org.jetbrains.kotlin.test.TestJdkKind
-import org.jetbrains.kotlin.test.testFramework.KtUsefulTestCase
 import org.jetbrains.kotlin.utils.tryConstructClassFromStringArgs
 import org.junit.Assert
 import java.io.File
@@ -28,7 +28,7 @@ import java.net.URLClassLoader
 import kotlin.script.experimental.host.toScriptSource
 import kotlin.script.experimental.jvm.defaultJvmScriptingHostConfiguration
 
-class ScriptTest : KtUsefulTestCase() {
+class ScriptTest : TestCase() {
     fun testStandardScriptWithParams() {
         val aClass = compileScript("fib_std.kts", StandardScriptDefinition)
         Assert.assertNotNull(aClass)