[Gradle, JS] Add tests on kotlin/js module with js files

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kotlin2JsGradlePluginIT.kt

@@ -213,6 +213,37 @@ class Kotlin2JsGradlePluginIT : AbstractKotlin2JsGradlePluginIT(false) {
             assertTrue(fileInWorkingDir("$pathPrefix/kotlin.js").length() < 500 * 1000, "Looks like kotlin.js file was not minified by DCE")
         }
     }
+
+    @Test
+    fun testKotlinJsDependencyWithJsFiles() = with(Project("kotlin-js-dependency-with-js-files")) {
+        setupWorkingDir()
+        gradleBuildScript().modify(::transformBuildScriptWithPluginsDsl)
+
+        build(
+            "packageJson"
+        ) {
+            assertSuccessful()
+
+            val dependency = "2p-parser-core"
+            val version = "0.11.1"
+
+            assertFileExists("build/js/packages_imported/$dependency/$version")
+
+            fun getPackageJson(dependency: String, version: String) =
+                fileInWorkingDir("build/js/packages_imported/$dependency/$version")
+                    .resolve(NpmProject.PACKAGE_JSON)
+                    .let {
+                        Gson().fromJson(it.readText(), PackageJson::class.java)
+                    }
+
+
+            val packageJson = getPackageJson(dependency, version)
+
+            assertEquals(dependency, packageJson.name)
+            assertEquals(version, packageJson.version)
+            assertEquals("$dependency.js", packageJson.main)
+        }
+    }
 }
 
 abstract class AbstractKotlin2JsGradlePluginIT(private val irBackend: Boolean) : BaseGradleIT() {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-dependency-with-js-files/build.gradle.kts

@@ -0,0 +1,21 @@
+plugins {
+    kotlin("js") version "<pluginMarkerVersion>"
+}
+
+group = "org.example"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+dependencies {
+    implementation("it.unibo.tuprolog:parser-core-js:0.11.1")
+}
+
+kotlin {
+    js {
+        nodejs()
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-dependency-with-js-files/settings.gradle.kts

@@ -0,0 +1,8 @@
+pluginManagement {
+    repositories {
+        mavenLocal()
+        gradlePluginPortal()
+    }
+}
+
+rootProject.name = "kotlin-js-dependency-with-js-files"