[Gradle, JS] Add test on not updating Node.JS if it was downloaded

^KT-47845 fixed

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

@@ -978,4 +978,16 @@ class GeneralKotlin2JsGradlePluginIT : BaseGradleIT() {
             assertNoWarnings()
         }
     }
+
+    @Test
+    fun testNodeJsAndYarnDownload() = with(transformProjectWithPluginsDsl("cleanTask")) {
+
+        build("checkDownloadedFolder") {
+            assertSuccessful()
+        }
+
+        build("checkIfLastModifiedNotNow", "--rerun-tasks") {
+            assertSuccessful()
+        }
+    }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/cleanTask/build.gradle

@@ -2,6 +2,7 @@ import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsPlatform
 
 import java.io.File
 import java.time.*
+import java.util.concurrent.*
 
 plugins {
     id "org.jetbrains.kotlin.js" version "<pluginMarkerVersion>"
@@ -29,6 +30,28 @@ tasks.create("checkDownloadedFolder") {
     }
 }
 
+tasks.create("checkIfLastModifiedNotNow") {
+    description = "check if last modified is not current date now"
+    dependsOn "build"
+    doLast {
+        println("check downloaded folder existance")
+        def downloadedFolder = new File(project.gradle.gradleUserHomeDir, nodeJsLocation)
+        if (!downloadedFolder.exists() || !downloadedFolder.isDirectory()) {
+            throw new InvalidUserDataException("Downloaded folder was not found")
+        }
+
+        def now = LocalDateTime.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli()
+
+        def lastModified = downloadedFolder.lastModified()
+        def lastModified1 = lastModified + TimeUnit.DAYS.toMillis(1);
+        def lastModified2 = lastModified - TimeUnit.DAYS.toMillis(1);
+
+        if (now < lastModified1 || now < lastModified2) {
+            throw new InvalidUserDataException("Last modified date was updated")
+        }
+    }
+}
+
 tasks.create("testCleanTask") {
     description = "check clean task behaviour"
     doLast {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/cleanTask/settings.gradle

@@ -2,6 +2,7 @@ pluginManagement {
     repositories {
         maven { url '<mavenLocalUrl>' }
         gradlePluginPortal()
+        mavenCentral()
     }
 }