Move common logic from CodegenTestCase to KotlinBaseTest

compiler/android-tests/tests/org/jetbrains/kotlin/android/tests/CodegenTestsOnAndroidGenerator.kt

@@ -294,7 +294,7 @@ class CodegenTestsOnAndroidGenerator private constructor(private val pathManager
                     val kind = KotlinBaseTest.extractConfigurationKind(testFiles)
                     val jdkKind = KotlinBaseTest.getTestJdkKind(testFiles)
                     val keyConfiguration = CompilerConfiguration()
-                    CodegenTestCase.updateConfigurationByDirectivesInTestFiles(testFiles, keyConfiguration)
+                    KotlinBaseTest.updateConfigurationByDirectivesInTestFiles(testFiles, keyConfiguration)
 
                     val key = ConfigurationKey(kind, jdkKind, keyConfiguration.toString())
                     val compiler = if (isJvm8Target) {
@@ -303,7 +303,7 @@ class CodegenTestsOnAndroidGenerator private constructor(private val pathManager
                     val filesHolder = holders.getOrPut(key) {
                         FilesWriter(compiler, KotlinTestUtils.newConfiguration(kind, jdkKind, KotlinTestUtils.getAnnotationsJar()).apply {
                             println("Creating new configuration by $key")
-                            CodegenTestCase.updateConfigurationByDirectivesInTestFiles(testFiles, this)
+                            KotlinBaseTest.updateConfigurationByDirectivesInTestFiles(testFiles, this)
                         })
                     }
 

compiler/tests-against-klib/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrCompileKotlinAgainstKlibTest.kt

@@ -24,7 +24,7 @@ abstract class AbstractCompileKotlinAgainstKlibTest : AbstractBlackBoxCodegenTes
     lateinit var klibName: String
     lateinit var outputDir: File
 
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 
     override fun doMultiFileTest(wholeFile: File, files: List<TestFile>) {
         outputDir = javaSourcesOutputDirectory
@@ -56,6 +56,7 @@ abstract class AbstractCompileKotlinAgainstKlibTest : AbstractBlackBoxCodegenTes
     }
 
     override fun updateConfiguration(configuration: CompilerConfiguration) {
+        super.updateConfiguration(configuration)
         configuration.put(JVMConfigurationKeys.KLIB_PATHS, listOf(klibName + ".klib"))
     }
 

compiler/tests-common/tests/org/jetbrains/kotlin/checkers/AbstractForeignAnnotationsNoAnnotationInClasspathWithPsiClassReadingTest.kt

@@ -21,8 +21,8 @@ import org.jetbrains.kotlin.config.JVMConfigurationKeys
 
 abstract class AbstractForeignAnnotationsNoAnnotationInClasspathWithPsiClassReadingTest :
     AbstractForeignAnnotationsNoAnnotationInClasspathTest() {
-    override fun performCustomConfiguration(configuration: CompilerConfiguration) {
-        super.performCustomConfiguration(configuration)
+    override fun updateConfiguration(configuration: CompilerConfiguration) {
+        super.updateConfiguration(configuration)
         configuration.put(JVMConfigurationKeys.USE_PSI_CLASS_FILES_READING, true)
     }
 }

compiler/tests-common/tests/org/jetbrains/kotlin/checkers/KotlinMultiFileTestWithJava.kt

@@ -44,11 +44,12 @@ abstract class KotlinMultiFileTestWithJava<M : KotlinBaseTest.TestModule, F : Ko
         file: File,
         files: List<F>
     ): KotlinCoreEnvironment {
-        val configuration = KotlinTestUtils.newConfiguration(
+        val configuration = createConfiguration(
             extractConfigurationKind(files),
             getTestJdkKind(files),
             getClasspath(file),
-            if (isJavaSourceRootNeeded()) listOf(javaFilesDir) else emptyList()
+            if (isJavaSourceRootNeeded()) listOf(javaFilesDir) else emptyList(),
+            files
         )
         if (isScriptingNeeded(file)) {
             loadScriptingPlugin(configuration)
@@ -61,16 +62,12 @@ abstract class KotlinMultiFileTestWithJava<M : KotlinBaseTest.TestModule, F : Ko
         // The main difference is the fact that the new class file reading implementation doesn't load parameter names from JDK classes.
         configuration.put(JVMConfigurationKeys.USE_PSI_CLASS_FILES_READING, true)
 
-        performCustomConfiguration(configuration)
+        updateConfiguration(configuration)
         return createForTests(testRootDisposable, configuration, getEnvironmentConfigFiles())
     }
 
     protected open fun isJavaSourceRootNeeded(): Boolean = true
 
-    protected open fun performCustomConfiguration(configuration: CompilerConfiguration) {}
-
-    protected open fun setupEnvironment(environment: KotlinCoreEnvironment) {}
-
     protected open fun setupEnvironment(
         environment: KotlinCoreEnvironment,
         testDataFile: File,

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/AbstractBlackBoxAgainstJavaCodegenTest.kt

@@ -35,6 +35,7 @@ abstract class AbstractBlackBoxAgainstJavaCodegenTest : AbstractBlackBoxCodegenT
     }
 
     override fun updateConfiguration(configuration: CompilerConfiguration) {
+        super.updateConfiguration(configuration)
         configuration.addJvmClasspathRoot(javaClassesOutputDirectory)
     }
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/AbstractDumpDeclarationsTest.kt

@@ -7,7 +7,6 @@ package org.jetbrains.kotlin.codegen
 
 import org.jetbrains.kotlin.config.CompilerConfiguration
 import org.jetbrains.kotlin.config.JVMConfigurationKeys
-import org.jetbrains.kotlin.test.ConfigurationKind
 import org.jetbrains.kotlin.test.KotlinTestUtils
 import java.io.File
 
@@ -26,6 +25,7 @@ abstract class AbstractDumpDeclarationsTest : CodegenTestCase() {
     }
 
     override fun updateConfiguration(configuration: CompilerConfiguration) {
+        super.updateConfiguration(configuration)
         configuration.put(JVMConfigurationKeys.DECLARATIONS_JSON_PATH, dumpToFile.path)
     }
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/AbstractScriptCodegenTest.java

@@ -38,6 +38,7 @@ public abstract class AbstractScriptCodegenTest extends CodegenTestCase {
 
     @Override
     protected void updateConfiguration(@NotNull CompilerConfiguration configuration) {
+        super.updateConfiguration(configuration);
         loadScriptingPlugin(configuration);
     }
 

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/CodegenTestCase.java

@@ -5,8 +5,6 @@
 
 package org.jetbrains.kotlin.codegen;
 
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableMap;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.testFramework.TestDataFile;
@@ -21,7 +19,6 @@ import org.jetbrains.kotlin.TestsCompilerError;
 import org.jetbrains.kotlin.TestsCompiletimeError;
 import org.jetbrains.kotlin.backend.common.output.OutputFile;
 import org.jetbrains.kotlin.backend.common.output.SimpleOutputFileCollection;
-import org.jetbrains.kotlin.checkers.CompilerTestLanguageVersionSettings;
 import org.jetbrains.kotlin.checkers.utils.CheckerTestUtil;
 import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys;
 import org.jetbrains.kotlin.cli.common.output.OutputUtilsKt;
@@ -29,14 +26,14 @@ import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles;
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment;
 import org.jetbrains.kotlin.cli.jvm.compiler.NoScopeRecordCliBindingTrace;
 import org.jetbrains.kotlin.cli.jvm.config.JvmClasspathRoot;
-import org.jetbrains.kotlin.cli.jvm.config.JvmContentRootsKt;
 import org.jetbrains.kotlin.codegen.forTestCompile.ForTestCompileRuntime;
 import org.jetbrains.kotlin.codegen.state.GenerationState;
-import org.jetbrains.kotlin.config.*;
+import org.jetbrains.kotlin.config.CompilerConfiguration;
+import org.jetbrains.kotlin.config.JVMConfigurationKeys;
+import org.jetbrains.kotlin.config.JvmTarget;
 import org.jetbrains.kotlin.fileClasses.JvmFileClassUtil;
 import org.jetbrains.kotlin.name.FqName;
 import org.jetbrains.kotlin.psi.KtFile;
-import org.jetbrains.kotlin.resolve.DescriptorUtils;
 import org.jetbrains.kotlin.scripting.definitions.ScriptDependenciesProvider;
 import org.jetbrains.kotlin.scripting.resolve.ScriptCompilationConfigurationWrapper;
 import org.jetbrains.kotlin.test.*;
@@ -55,17 +52,13 @@ import org.jetbrains.org.objectweb.asm.util.TraceMethodVisitor;
 import java.io.File;
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.*;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
-import static org.jetbrains.kotlin.checkers.CompilerTestLanguageVersionSettingsKt.parseLanguageVersionSettings;
 import static org.jetbrains.kotlin.cli.common.output.OutputUtilsKt.writeAllTo;
 import static org.jetbrains.kotlin.codegen.CodegenTestUtil.*;
 import static org.jetbrains.kotlin.codegen.TestUtilsKt.extractUrls;
@@ -118,192 +111,6 @@ public abstract class CodegenTestCase extends KotlinBaseTest<KotlinBaseTest.Test
         );
     }
 
-    protected void configureTestSpecific(@NotNull CompilerConfiguration configuration, @NotNull List<TestFile> testFiles) {}
-
-    @NotNull
-    protected CompilerConfiguration createConfiguration(
-            @NotNull ConfigurationKind kind,
-            @NotNull TestJdkKind jdkKind,
-            @NotNull List<File> classpath,
-            @NotNull List<File> javaSource,
-            @NotNull List<TestFile> testFilesWithConfigurationDirectives
-    ) {
-        CompilerConfiguration configuration = KotlinTestUtils.newConfiguration(kind, jdkKind, classpath, javaSource);
-        configuration.put(JVMConfigurationKeys.IR, getBackend().isIR());
-
-        updateConfigurationByDirectivesInTestFiles(testFilesWithConfigurationDirectives, configuration, coroutinesPackage, parseDirectivesPerFiles());
-        updateConfiguration(configuration);
-        setCustomDefaultJvmTarget(configuration);
-
-        configureTestSpecific(configuration, testFilesWithConfigurationDirectives);
-
-        return configuration;
-    }
-
-    public static void updateConfigurationByDirectivesInTestFiles(
-            @NotNull List<TestFile> testFilesWithConfigurationDirectives,
-            @NotNull CompilerConfiguration configuration
-    ) {
-        updateConfigurationByDirectivesInTestFiles(testFilesWithConfigurationDirectives, configuration, "", false);
-    }
-
-    private static void updateConfigurationByDirectivesInTestFiles(
-            @NotNull List<TestFile> testFilesWithConfigurationDirectives,
-            @NotNull CompilerConfiguration configuration,
-            @NotNull String coroutinesPackage,
-            boolean usePreparsedDirectives
-    ) {
-        LanguageVersionSettings explicitLanguageVersionSettings = null;
-        boolean disableReleaseCoroutines = false;
-        boolean includeCompatExperimentalCoroutines = false;
-
-        List<String> kotlinConfigurationFlags = new ArrayList<>(0);
-        for (TestFile testFile : testFilesWithConfigurationDirectives) {
-            String content = testFile.content;
-            Directives directives = usePreparsedDirectives ? testFile.directives : KotlinTestUtils.parseDirectives(content);
-            List<String> flags = directives.listValues("KOTLIN_CONFIGURATION_FLAGS");
-            if (flags != null) {
-                kotlinConfigurationFlags.addAll(flags);
-            }
-
-            String targetString = directives.get("JVM_TARGET");
-            if (targetString != null) {
-                JvmTarget jvmTarget = JvmTarget.Companion.fromString(targetString);
-                assert jvmTarget != null : "Unknown target: " + targetString;
-                configuration.put(JVMConfigurationKeys.JVM_TARGET, jvmTarget);
-            }
-
-            String version = directives.get("LANGUAGE_VERSION");
-            if (version != null) {
-                throw new AssertionError(
-                        "Do not use LANGUAGE_VERSION directive in compiler tests because it's prone to limiting the test\n" +
-                        "to a specific language version, which will become obsolete at some point and the test won't check\n" +
-                        "things like feature intersection with newer releases. Use `// !LANGUAGE: [+-]FeatureName` directive instead,\n" +
-                        "where FeatureName is an entry of the enum `LanguageFeature`\n"
-                );
-            }
-
-            if (directives.contains("COMMON_COROUTINES_TEST")) {
-                assert !directives.contains("COROUTINES_PACKAGE") : "Must replace COROUTINES_PACKAGE prior to tests compilation";
-                if (DescriptorUtils.COROUTINES_PACKAGE_FQ_NAME_EXPERIMENTAL.asString().equals(coroutinesPackage)) {
-                    disableReleaseCoroutines = true;
-                    includeCompatExperimentalCoroutines = true;
-                }
-            }
-
-            if (content.contains(DescriptorUtils.COROUTINES_PACKAGE_FQ_NAME_EXPERIMENTAL.asString())) {
-                includeCompatExperimentalCoroutines = true;
-            }
-
-            LanguageVersionSettings fileLanguageVersionSettings = parseLanguageVersionSettings(directives);
-            if (fileLanguageVersionSettings != null) {
-                assert explicitLanguageVersionSettings == null : "Should not specify !LANGUAGE directive twice";
-                explicitLanguageVersionSettings = fileLanguageVersionSettings;
-            }
-        }
-
-        if (disableReleaseCoroutines) {
-            explicitLanguageVersionSettings = new CompilerTestLanguageVersionSettings(
-                    Collections.singletonMap(LanguageFeature.ReleaseCoroutines, LanguageFeature.State.DISABLED),
-                    ApiVersion.LATEST_STABLE,
-                    LanguageVersion.LATEST_STABLE,
-                    Collections.emptyMap()
-            );
-        }
-        if (includeCompatExperimentalCoroutines) {
-            JvmContentRootsKt.addJvmClasspathRoot(configuration, ForTestCompileRuntime.coroutinesCompatForTests());
-        }
-
-        if (explicitLanguageVersionSettings != null) {
-            CommonConfigurationKeysKt.setLanguageVersionSettings(configuration, explicitLanguageVersionSettings);
-        }
-
-        updateConfigurationWithFlags(configuration, kotlinConfigurationFlags);
-    }
-
-    private static final Map<String, Class<?>> FLAG_NAMESPACE_TO_CLASS = ImmutableMap.of(
-            "CLI", CLIConfigurationKeys.class,
-            "JVM", JVMConfigurationKeys.class
-    );
-
-    private static final List<Class<?>> FLAG_CLASSES = ImmutableList.of(CLIConfigurationKeys.class, JVMConfigurationKeys.class);
-
-    private static final Pattern BOOLEAN_FLAG_PATTERN = Pattern.compile("([+-])(([a-zA-Z_0-9]*)\\.)?([a-zA-Z_0-9]*)");
-    private static final Pattern CONSTRUCTOR_CALL_NORMALIZATION_MODE_FLAG_PATTERN = Pattern.compile(
-            "CONSTRUCTOR_CALL_NORMALIZATION_MODE=([a-zA-Z_\\-0-9]*)");
-    private static final Pattern ASSERTIONS_MODE_FLAG_PATTERN = Pattern.compile("ASSERTIONS_MODE=([a-zA-Z_0-9-]*)");
-
-    private static void updateConfigurationWithFlags(@NotNull CompilerConfiguration configuration, @NotNull List<String> flags) {
-        for (String flag : flags) {
-            Matcher m = BOOLEAN_FLAG_PATTERN.matcher(flag);
-            if (m.matches()) {
-                boolean flagEnabled = !"-".equals(m.group(1));
-                String flagNamespace = m.group(3);
-                String flagName = m.group(4);
-
-                tryApplyBooleanFlag(configuration, flag, flagEnabled, flagNamespace, flagName);
-                continue;
-            }
-
-            m = CONSTRUCTOR_CALL_NORMALIZATION_MODE_FLAG_PATTERN.matcher(flag);
-            if (m.matches()) {
-                String flagValueString = m.group(1);
-                JVMConstructorCallNormalizationMode mode = JVMConstructorCallNormalizationMode.fromStringOrNull(flagValueString);
-                assert mode != null : "Wrong CONSTRUCTOR_CALL_NORMALIZATION_MODE value: " + flagValueString;
-                configuration.put(JVMConfigurationKeys.CONSTRUCTOR_CALL_NORMALIZATION_MODE, mode);
-            }
-
-            m = ASSERTIONS_MODE_FLAG_PATTERN.matcher(flag);
-            if (m.matches()) {
-                String flagValueString = m.group(1);
-                JVMAssertionsMode mode = JVMAssertionsMode.fromStringOrNull(flagValueString);
-                assert mode != null : "Wrong ASSERTIONS_MODE value: " + flagValueString;
-                configuration.put(JVMConfigurationKeys.ASSERTIONS_MODE, mode);
-            }
-        }
-    }
-
-    private static void tryApplyBooleanFlag(
-            @NotNull CompilerConfiguration configuration,
-            @NotNull String flag,
-            boolean flagEnabled,
-            @Nullable String flagNamespace,
-            @NotNull String flagName
-    ) {
-        Class<?> configurationKeysClass;
-        Field configurationKeyField = null;
-        if (flagNamespace == null) {
-            for (Class<?> flagClass : FLAG_CLASSES) {
-                try {
-                    configurationKeyField = flagClass.getField(flagName);
-                    break;
-                }
-                catch (Exception ignored) {
-                }
-            }
-        }
-        else {
-            configurationKeysClass = FLAG_NAMESPACE_TO_CLASS.get(flagNamespace);
-            assert configurationKeysClass != null : "Expected [+|-][namespace.]configurationKey, got: " + flag;
-            try {
-                configurationKeyField = configurationKeysClass.getField(flagName);
-            }
-            catch (Exception e) {
-                configurationKeyField = null;
-            }
-        }
-        assert configurationKeyField != null : "Expected [+|-][namespace.]configurationKey, got: " + flag;
-
-        try {
-            @SuppressWarnings("unchecked")
-            CompilerConfigurationKey<Boolean> configurationKey = (CompilerConfigurationKey<Boolean>) configurationKeyField.get(null);
-            configuration.put(configurationKey, flagEnabled);
-        }
-        catch (Exception e) {
-            assert false : "Expected [+|-][namespace.]configurationKey, got: " + flag;
-        }
-    }
-
     @Override
     protected void tearDown() throws Exception {
         myFiles = null;
@@ -638,19 +445,16 @@ public abstract class CodegenTestCase extends KotlinBaseTest<KotlinBaseTest.Test
         return findDeclaredMethodByName(generateFacadeClass(), name);
     }
 
+    @Override
     protected void updateConfiguration(@NotNull CompilerConfiguration configuration) {
-
+        setCustomDefaultJvmTarget(configuration);
     }
 
     protected ClassBuilderFactory getClassBuilderFactory() {
         return ClassBuilderFactories.TEST;
     }
 
-    protected void setupEnvironment(@NotNull KotlinCoreEnvironment environment) {
-
-    }
-
-    protected void setCustomDefaultJvmTarget(CompilerConfiguration configuration) {
+    private static void setCustomDefaultJvmTarget(CompilerConfiguration configuration) {
         if (DEFAULT_JVM_TARGET != null) {
             JvmTarget customDefaultTarget = JvmTarget.fromString(DEFAULT_JVM_TARGET);
             assert customDefaultTarget != null : "Can't construct JvmTarget for " + DEFAULT_JVM_TARGET;
@@ -750,6 +554,8 @@ public abstract class CodegenTestCase extends KotlinBaseTest<KotlinBaseTest.Test
         }
     }
 
+    @NotNull
+    @Override
     protected TargetBackend getBackend() {
         return TargetBackend.JVM;
     }
@@ -801,9 +607,6 @@ public abstract class CodegenTestCase extends KotlinBaseTest<KotlinBaseTest.Test
         return testFiles;
     }
 
-    protected boolean parseDirectivesPerFiles() {
-        return false;
-    }
 
     @NotNull
     protected File getJavaSourcesOutputDirectory() {

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/debugInformation/AbstractIrLocalVariableTest.kt

@@ -8,5 +8,6 @@ package org.jetbrains.kotlin.codegen.debugInformation
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrLocalVariableTest : AbstractLocalVariableTest() {
-    override fun getBackend(): TargetBackend = TargetBackend.JVM_IR
+    override val backend: TargetBackend
+        get() = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/debugInformation/AbstractIrSteppingTest.kt

@@ -8,5 +8,6 @@ package org.jetbrains.kotlin.codegen.debugInformation
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrSteppingTest : AbstractSteppingTest() {
-    override fun getBackend(): TargetBackend = TargetBackend.JVM_IR
+    override val backend: TargetBackend
+        get() = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractFirBlackBoxCodegenTest.kt

@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.config.JVMConfigurationKeys
 
 abstract class AbstractFirBlackBoxCodegenTest : AbstractIrBlackBoxCodegenTest() {
     override fun updateConfiguration(configuration: CompilerConfiguration) {
+        super.updateConfiguration(configuration)
         configuration.put(CommonConfigurationKeys.USE_FIR, true)
         configuration.put(JVMConfigurationKeys.IR, true)
     }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrAsmLikeInstructionListingTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.codegen.AbstractAsmLikeInstructionListingTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrAsmLikeInstructionListingTest : AbstractAsmLikeInstructionListingTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrBlackBoxAgainstJavaCodegenTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.codegen.AbstractBlackBoxAgainstJavaCodegenTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrBlackBoxAgainstJavaCodegenTest : AbstractBlackBoxAgainstJavaCodegenTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrBlackBoxCodegenTest.kt

@@ -20,5 +20,5 @@ import org.jetbrains.kotlin.codegen.AbstractBlackBoxCodegenTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrBlackBoxCodegenTest : AbstractBlackBoxCodegenTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrBlackBoxInlineCodegenTest.kt

@@ -20,5 +20,5 @@ import org.jetbrains.kotlin.codegen.AbstractBlackBoxCodegenTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrBlackBoxInlineCodegenTest : AbstractBlackBoxCodegenTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrBytecodeListingTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.codegen.AbstractBytecodeListingTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrBytecodeListingTest : AbstractBytecodeListingTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrBytecodeTextTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.codegen.AbstractBytecodeTextTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrBytecodeTextTest : AbstractBytecodeTextTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrCheckLocalVariablesTableTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.codegen.AbstractCheckLocalVariablesTableTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrCheckLocalVariablesTableTest : AbstractCheckLocalVariablesTableTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrCompileKotlinAgainstInlineKotlinTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.codegen.AbstractCompileKotlinAgainstInlineKotlinTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrCompileKotlinAgainstInlineKotlinTest : AbstractCompileKotlinAgainstInlineKotlinTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrCompileKotlinAgainstKotlinTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.codegen.AbstractCompileKotlinAgainstKotlinTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrCompileKotlinAgainstKotlinTest : AbstractCompileKotlinAgainstKotlinTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrWriteFlagsTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.codegen.flags.AbstractWriteFlagsTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrWriteFlagsTest : AbstractWriteFlagsTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/ir/AbstractIrWriteSignatureTest.kt

@@ -9,5 +9,5 @@ import org.jetbrains.kotlin.jvm.compiler.AbstractWriteSignatureTest
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrWriteSignatureTest : AbstractWriteSignatureTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

compiler/tests-common/tests/org/jetbrains/kotlin/test/KotlinBaseTest.kt

@@ -5,8 +5,22 @@
 
 package org.jetbrains.kotlin.test
 
+import com.google.common.collect.ImmutableList
+import com.google.common.collect.ImmutableMap
+import org.jetbrains.kotlin.checkers.CompilerTestLanguageVersionSettings
+import org.jetbrains.kotlin.checkers.parseLanguageVersionSettings
+import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys
+import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
+import org.jetbrains.kotlin.cli.jvm.config.addJvmClasspathRoot
+import org.jetbrains.kotlin.codegen.forTestCompile.ForTestCompileRuntime
+import org.jetbrains.kotlin.config.*
+import org.jetbrains.kotlin.config.JvmTarget.Companion.fromString
+import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.test.testFramework.KtUsefulTestCase
 import java.io.File
+import java.lang.reflect.Field
+import java.util.*
+import java.util.regex.Pattern
 
 abstract class KotlinBaseTest<F : KotlinBaseTest.TestFile> : KtUsefulTestCase() {
 
@@ -58,6 +72,35 @@ abstract class KotlinBaseTest<F : KotlinBaseTest.TestFile> : KtUsefulTestCase()
         return Companion.extractConfigurationKind(files)
     }
 
+    protected open fun updateConfiguration(configuration: CompilerConfiguration) {}
+
+    protected open fun setupEnvironment(environment: KotlinCoreEnvironment) {}
+
+    protected open fun parseDirectivesPerFiles() = false
+
+    protected open val backend = TargetBackend.ANY
+
+    protected open fun configureTestSpecific(configuration: CompilerConfiguration, testFiles: List<TestFile>) {}
+
+    protected open fun createConfiguration(
+        kind: ConfigurationKind,
+        jdkKind: TestJdkKind,
+        classpath: List<File?>,
+        javaSource: List<File?>,
+        testFilesWithConfigurationDirectives: List<TestFile>
+    ): CompilerConfiguration {
+        val configuration = KotlinTestUtils.newConfiguration(kind, jdkKind, classpath, javaSource)
+        configuration.put(JVMConfigurationKeys.IR, backend.isIR)
+        updateConfigurationByDirectivesInTestFiles(
+            testFilesWithConfigurationDirectives,
+            configuration,
+            coroutinesPackage,
+            parseDirectivesPerFiles()
+        )
+        updateConfiguration(configuration)
+        configureTestSpecific(configuration, testFilesWithConfigurationDirectives)
+        return configuration
+    }
 
     open class TestFile @JvmOverloads constructor(
         @JvmField val name: String,
@@ -97,6 +140,161 @@ abstract class KotlinBaseTest<F : KotlinBaseTest.TestFile> : KtUsefulTestCase()
     }
 
     companion object {
+
+        private val FLAG_NAMESPACE_TO_CLASS: Map<String, Class<*>> = ImmutableMap.of(
+            "CLI", CLIConfigurationKeys::class.java,
+            "JVM", JVMConfigurationKeys::class.java
+        )
+
+        private val FLAG_CLASSES: List<Class<*>> = ImmutableList.of(
+            CLIConfigurationKeys::class.java,
+            JVMConfigurationKeys::class.java
+        )
+
+        private val BOOLEAN_FLAG_PATTERN = Pattern.compile("([+-])(([a-zA-Z_0-9]*)\\.)?([a-zA-Z_0-9]*)")
+        private val CONSTRUCTOR_CALL_NORMALIZATION_MODE_FLAG_PATTERN = Pattern.compile(
+            "CONSTRUCTOR_CALL_NORMALIZATION_MODE=([a-zA-Z_\\-0-9]*)"
+        )
+        private val ASSERTIONS_MODE_FLAG_PATTERN = Pattern.compile("ASSERTIONS_MODE=([a-zA-Z_0-9-]*)")
+
+        private fun tryApplyBooleanFlag(
+            configuration: CompilerConfiguration,
+            flag: String,
+            flagEnabled: Boolean,
+            flagNamespace: String?,
+            flagName: String
+        ) {
+            val configurationKeysClass: Class<*>?
+            var configurationKeyField: Field? = null
+            if (flagNamespace == null) {
+                for (flagClass in FLAG_CLASSES) {
+                    try {
+                        configurationKeyField = flagClass.getField(flagName)
+                        break
+                    } catch (ignored: java.lang.Exception) {
+                    }
+                }
+            } else {
+                configurationKeysClass = FLAG_NAMESPACE_TO_CLASS[flagNamespace]
+                assert(configurationKeysClass != null) { "Expected [+|-][namespace.]configurationKey, got: $flag" }
+                configurationKeyField = try {
+                    configurationKeysClass!!.getField(flagName)
+                } catch (e: java.lang.Exception) {
+                    null
+                }
+            }
+            assert(configurationKeyField != null) { "Expected [+|-][namespace.]configurationKey, got: $flag" }
+            try {
+                val configurationKey = configurationKeyField!![null] as CompilerConfigurationKey<Boolean>
+                configuration.put(configurationKey, flagEnabled)
+            } catch (e: java.lang.Exception) {
+                assert(false) { "Expected [+|-][namespace.]configurationKey, got: $flag" }
+            }
+        }
+
+        @JvmStatic
+        fun updateConfigurationByDirectivesInTestFiles1(
+            testFilesWithConfigurationDirectives: List<TestFile>,
+            configuration: CompilerConfiguration
+        ) {
+            updateConfigurationByDirectivesInTestFiles(testFilesWithConfigurationDirectives, configuration, "", false)
+        }
+
+
+        private fun updateConfigurationByDirectivesInTestFiles(
+            testFilesWithConfigurationDirectives: List<TestFile>,
+            configuration: CompilerConfiguration,
+            coroutinesPackage: String,
+            usePreparsedDirectives: Boolean
+        ) {
+            var explicitLanguageVersionSettings: LanguageVersionSettings? = null
+            var disableReleaseCoroutines = false
+            var includeCompatExperimentalCoroutines = false
+            val kotlinConfigurationFlags: MutableList<String> = ArrayList(0)
+            for (testFile in testFilesWithConfigurationDirectives) {
+                val content = testFile.content
+                val directives = if (usePreparsedDirectives) testFile.directives else KotlinTestUtils.parseDirectives(content)
+                val flags = directives.listValues("KOTLIN_CONFIGURATION_FLAGS")
+                if (flags != null) {
+                    kotlinConfigurationFlags.addAll(flags)
+                }
+                val targetString = directives["JVM_TARGET"]
+                if (targetString != null) {
+                    val jvmTarget = fromString(targetString)
+                        ?: error("Unknown target: $targetString")
+                    configuration.put(JVMConfigurationKeys.JVM_TARGET, jvmTarget)
+                }
+                val version = directives["LANGUAGE_VERSION"]
+                if (version != null) {
+                    throw AssertionError(
+                        """
+                    Do not use LANGUAGE_VERSION directive in compiler tests because it's prone to limiting the test
+                    to a specific language version, which will become obsolete at some point and the test won't check
+                    things like feature intersection with newer releases. Use `// !LANGUAGE: [+-]FeatureName` directive instead,
+                    where FeatureName is an entry of the enum `LanguageFeature`
+                    
+                    """.trimIndent()
+                    )
+                }
+                if (directives.contains("COMMON_COROUTINES_TEST")) {
+                    assert(!directives.contains("COROUTINES_PACKAGE")) { "Must replace COROUTINES_PACKAGE prior to tests compilation" }
+                    if (DescriptorUtils.COROUTINES_PACKAGE_FQ_NAME_EXPERIMENTAL.asString() == coroutinesPackage) {
+                        disableReleaseCoroutines = true
+                        includeCompatExperimentalCoroutines = true
+                    }
+                }
+                if (content.contains(DescriptorUtils.COROUTINES_PACKAGE_FQ_NAME_EXPERIMENTAL.asString())) {
+                    includeCompatExperimentalCoroutines = true
+                }
+                val fileLanguageVersionSettings: LanguageVersionSettings? = parseLanguageVersionSettings(directives)
+                if (fileLanguageVersionSettings != null) {
+                    assert(explicitLanguageVersionSettings == null) { "Should not specify !LANGUAGE directive twice" }
+                    explicitLanguageVersionSettings = fileLanguageVersionSettings
+                }
+            }
+            if (disableReleaseCoroutines) {
+                explicitLanguageVersionSettings = CompilerTestLanguageVersionSettings(
+                    Collections.singletonMap(LanguageFeature.ReleaseCoroutines, LanguageFeature.State.DISABLED),
+                    ApiVersion.LATEST_STABLE,
+                    LanguageVersion.LATEST_STABLE, emptyMap()
+                )
+            }
+            if (includeCompatExperimentalCoroutines) {
+                configuration.addJvmClasspathRoot(ForTestCompileRuntime.coroutinesCompatForTests())
+            }
+            if (explicitLanguageVersionSettings != null) {
+                configuration.languageVersionSettings = explicitLanguageVersionSettings
+            }
+            updateConfigurationWithFlags(configuration, kotlinConfigurationFlags)
+        }
+
+        private fun updateConfigurationWithFlags(configuration: CompilerConfiguration, flags: List<String>) {
+            for (flag in flags) {
+                var m = BOOLEAN_FLAG_PATTERN.matcher(flag)
+                if (m.matches()) {
+                    val flagEnabled = "-" != m.group(1)
+                    val flagNamespace = m.group(3)
+                    val flagName = m.group(4)
+                    tryApplyBooleanFlag(configuration, flag, flagEnabled, flagNamespace, flagName)
+                    continue
+                }
+                m = CONSTRUCTOR_CALL_NORMALIZATION_MODE_FLAG_PATTERN.matcher(flag)
+                if (m.matches()) {
+                    val flagValueString = m.group(1)
+                    val mode = JVMConstructorCallNormalizationMode.fromStringOrNull(flagValueString)
+                        ?: error("Wrong CONSTRUCTOR_CALL_NORMALIZATION_MODE value: $flagValueString")
+                    configuration.put(JVMConfigurationKeys.CONSTRUCTOR_CALL_NORMALIZATION_MODE, mode)
+                }
+                m = ASSERTIONS_MODE_FLAG_PATTERN.matcher(flag)
+                if (m.matches()) {
+                    val flagValueString = m.group(1)
+                    val mode = JVMAssertionsMode.fromStringOrNull(flagValueString)
+                        ?: error("Wrong ASSERTIONS_MODE value: $flagValueString")
+                    configuration.put(JVMConfigurationKeys.ASSERTIONS_MODE, mode)
+                }
+            }
+        }
+
         fun extractConfigurationKind(files: List<TestFile>): ConfigurationKind {
             var addRuntime = false
             var addReflect = false

compiler/tests/org/jetbrains/kotlin/codegen/AbstractCustomScriptCodegenTest.kt

@@ -37,6 +37,7 @@ abstract class AbstractCustomScriptCodegenTest : CodegenTestCase() {
     }
 
     override fun updateConfiguration(configuration: CompilerConfiguration) {
+        super.updateConfiguration(configuration)
         if (scriptDefinitions.isNotEmpty()) {
             configureScriptDefinitions(
                 scriptDefinitions, configuration, this::class.java.classLoader, MessageCollector.NONE, defaultJvmScriptingHostConfiguration

compiler/tests/org/jetbrains/kotlin/codegen/ir/IrGenerateNotNullAssertionsTest.java

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.codegen.ir;
 
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.kotlin.codegen.AbstractGenerateNotNullAssertionsTest;
 import org.jetbrains.kotlin.test.TargetBackend;
 
@@ -13,6 +14,7 @@ public class IrGenerateNotNullAssertionsTest extends AbstractGenerateNotNullAsse
         doTestNoAssertionsForKotlinFromBinary("noAssertionsForKotlin.kt", "noAssertionsForKotlinMain.kt");
     }
 
+    @NotNull
     @Override
     protected TargetBackend getBackend() {
         return TargetBackend.JVM_IR;

plugins/android-extensions/android-extensions-compiler/test/org/jetbrains/kotlin/android/parcel/AbstractParcelIrBoxTest.kt

@@ -8,5 +8,5 @@ package org.jetbrains.kotlin.android.parcel
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractParcelIrBoxTest : AbstractParcelBoxTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

plugins/android-extensions/android-extensions-compiler/test/org/jetbrains/kotlin/android/parcel/AbstractParcelIrBytecodeListingTest.kt

@@ -9,7 +9,7 @@ import org.jetbrains.kotlin.test.TargetBackend
 import java.io.File
 
 abstract class AbstractParcelIrBytecodeListingTest : AbstractParcelBytecodeListingTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 
     override fun getExpectedTextFileName(wholeFile: File): String {
         return wholeFile.nameWithoutExtension + ".ir.txt"

plugins/android-extensions/android-extensions-compiler/test/org/jetbrains/kotlin/android/synthetic/test/AbstractAndroidIrBoxTest.kt

@@ -8,5 +8,5 @@ package org.jetbrains.kotlin.android.synthetic.test
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractAndroidIrBoxTest : AbstractAndroidBoxTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

plugins/fir/fir-plugin-prototype/tests/org/jetbrains/kotlin/fir/plugin/AbstractFirAllOpenDiagnosticTest.kt

@@ -17,8 +17,8 @@ abstract class AbstractFirAllOpenDiagnosticTest : AbstractFirDiagnosticsTest() {
         service.registerExtensions(FirAllOpenComponentRegistrar().configure())
     }
 
-    override fun performCustomConfiguration(configuration: CompilerConfiguration) {
-        super.performCustomConfiguration(configuration)
+    override fun updateConfiguration(configuration: CompilerConfiguration) {
+        super.updateConfiguration(configuration)
         val jar = File("plugins/fir/fir-plugin-prototype/plugin-annotations/build/libs/plugin-annotations-1.4.255-SNAPSHOT.jar")
         if (!jar.exists()) {
             throw AssertionError("Jar with annotations does not exist. Please run :plugins:fir:fir-plugin-prototype:plugin-annotations:jar")

plugins/kapt3/kapt3-compiler/test/org/jetbrains/kotlin/kapt3/test/AbstractIrKotlinKapt3IntegrationTest.kt

@@ -8,5 +8,5 @@ package org.jetbrains.kotlin.kapt3.test
 import org.jetbrains.kotlin.test.TargetBackend
 
 abstract class AbstractIrKotlinKapt3IntegrationTest : AbstractKotlinKapt3IntegrationTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

plugins/kapt3/kapt3-compiler/test/org/jetbrains/kotlin/kapt3/test/AbstractIrKotlinKapt3Test.kt

@@ -12,9 +12,9 @@ Currently Kapt3 only works with the old backend. To enable IR, modify the isIrBa
 */
 
 abstract class AbstractIrClassFileToSourceStubConverterTest : AbstractClassFileToSourceStubConverterTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }
 
 abstract class AbstractIrKotlinKaptContextTest : AbstractKotlinKaptContextTest() {
-    override fun getBackend() = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 }

plugins/kotlin-serialization/kotlin-serialization-compiler/test/org/jetbrains/kotlinx/serialization/AbstractSerializationIrBytecodeListingTest.kt

@@ -19,7 +19,7 @@ abstract class AbstractSerializationIrBytecodeListingTest : AbstractAsmLikeInstr
         return wholeFile.nameWithoutExtension + ".ir.txt"
     }
 
-    override fun getBackend(): TargetBackend = TargetBackend.JVM_IR
+    override val backend = TargetBackend.JVM_IR
 
     override fun setupEnvironment(environment: KotlinCoreEnvironment) {
         SerializationComponentRegistrar.registerExtensions(environment.project)