[K/Wasm] Generate .d.ts tests for K/Wasm in the same way as we do for K/JS ^KT-65778 Fixed

wasm/wasm.tests/test/org/jetbrains/kotlin/generators/tests/GenerateWasmTests.kt

@@ -113,5 +113,15 @@ fun main(args: Array<String>) {
                 model("debug/stepping")
             }
         }
+
+        testGroup("wasm/wasm.tests/tests-gen", "js/js.translator/testData", testRunnerMethodName = "runTest0") {
+            testClass<AbstractFirWasmTypeScriptExportTest> {
+                model("typescript-export/wasm/")
+            }
+
+            testClass<AbstractK1WasmTypeScriptExportTest> {
+                model("typescript-export/wasm/")
+            }
+        }
     }
 }

wasm/wasm.tests/test/org/jetbrains/kotlin/wasm/test/AbstractK1WasmTest.kt

@@ -16,6 +16,7 @@ import org.jetbrains.kotlin.test.frontend.classic.ClassicFrontendFacade
 import org.jetbrains.kotlin.test.frontend.classic.ClassicFrontendOutputArtifact
 import org.jetbrains.kotlin.test.model.*
 import org.jetbrains.kotlin.test.services.EnvironmentConfigurator
+import org.jetbrains.kotlin.test.services.configuration.JsEnvironmentConfigurator
 import org.jetbrains.kotlin.test.services.configuration.WasmEnvironmentConfiguratorJs
 import org.jetbrains.kotlin.wasm.test.converters.FirWasmKlibBackendFacade
 import org.jetbrains.kotlin.wasm.test.converters.WasmBackendFacade
@@ -81,4 +82,28 @@ open class AbstractK1WasmSteppingTest : AbstractK1WasmTest(
             +WasmEnvironmentConfigurationDirectives.GENERATE_SOURCE_MAP
         }
     }
-}
+}
+
+open class AbstractK1WasmTypeScriptExportTest : AbstractK1WasmTest(
+    "${JsEnvironmentConfigurator.TEST_DATA_DIR_PATH}/typescript-export/wasm/",
+    "typescript-export/"
+) {
+    override fun configure(builder: TestConfigurationBuilder) {
+        super.configure(builder)
+        builder.defaultDirectives {
+            +WasmEnvironmentConfigurationDirectives.CHECK_TYPESCRIPT_DECLARATIONS
+        }
+    }
+}
+
+open class AbstractFirWasmTypeScriptExportTest : AbstractK1WasmTest(
+    "${JsEnvironmentConfigurator.TEST_DATA_DIR_PATH}/typescript-export/wasm/",
+    "typescript-export/"
+) {
+    override fun configure(builder: TestConfigurationBuilder) {
+        super.configure(builder)
+        builder.defaultDirectives {
+            +WasmEnvironmentConfigurationDirectives.CHECK_TYPESCRIPT_DECLARATIONS
+        }
+    }
+}

wasm/wasm.tests/test/org/jetbrains/kotlin/wasm/test/handlers/AbstractWasmArtifactsCollector.kt

@@ -56,6 +56,14 @@ abstract class AbstractWasmArtifactsCollector(testServices: TestServices) : Wasm
                 mjsFiles += AdditionalFile(it.name, it.readText())
             }
 
+
+        originalFile.parentFile.resolve(originalFile.nameWithoutExtension + "__main${JavaScript.DOT_EXTENSION}")
+            .takeIf { it.exists() }
+            ?.let {
+                entryMjs = it.name
+                mjsFiles += AdditionalFile(it.name, it.readText())
+            }
+
         return JsArtifacts(entryMjs, jsFiles, mjsFiles)
     }
 

wasm/wasm.tests/test/org/jetbrains/kotlin/wasm/test/handlers/WasmDtsHandler.kt

@@ -21,8 +21,9 @@ class WasmDtsHandler(testServices: TestServices) : WasmBinaryArtifactHandler(tes
         val globalDirectives = testServices.moduleStructure.allDirectives
         if (WasmEnvironmentConfigurationDirectives.CHECK_TYPESCRIPT_DECLARATIONS !in globalDirectives) return
 
-        val referenceDtsFile = module.files.first().originalFile.withReplacedExtensionOrNull(".kt", ".d.ts")
-            ?: error("Can't find reference .d.ts file")
+        val referenceDtsFile = module.files.first().originalFile.parentFile
+            .resolve("index.d.mts")
+            .run { takeIf { it.exists() } ?: error("'${path}' doesn't exist") }
 
         val generatedDts = info.compilerResult.dts
             ?: error("Can't find generated .d.ts file")