diff --git a/idea/idea-gradle-native/tests/org/jetbrains/kotlin/ide/konan/gradle/GradleNativeLibrariesInIDENamingTest.kt b/idea/idea-gradle-native/tests/org/jetbrains/kotlin/ide/konan/gradle/GradleNativeLibrariesInIDENamingTest.kt
index 5b5e15667fd..5a377c0e71b 100644
--- a/idea/idea-gradle-native/tests/org/jetbrains/kotlin/ide/konan/gradle/GradleNativeLibrariesInIDENamingTest.kt
+++ b/idea/idea-gradle-native/tests/org/jetbrains/kotlin/ide/konan/gradle/GradleNativeLibrariesInIDENamingTest.kt
@@ -12,7 +12,6 @@ import com.intellij.openapi.roots.OrderRootType
 import com.intellij.openapi.roots.libraries.Library
 import com.intellij.openapi.vfs.VfsUtilCore.urlToPath
 import org.jetbrains.kotlin.ide.konan.NativeLibraryKind
-import org.jetbrains.kotlin.idea.codeInsight.gradle.GradleImportingTestCase
 import org.jetbrains.kotlin.idea.configuration.externalCompilerVersion
 import org.jetbrains.kotlin.idea.framework.detectLibraryKind
 import org.jetbrains.kotlin.idea.project.platform
@@ -26,28 +25,10 @@ import org.junit.Test
 import org.junit.runners.Parameterized
 import java.io.File
 
-abstract class TestCaseWithFakeKotlinNative : GradleImportingTestCase() {
-    protected fun configureProject() {
-        configureByFiles()
-
-        // include data dir with fake Kotlin/Native libraries
-        val testSuiteDataDir = testDataDirectory().parentFile
-        val kotlinNativeHome = testSuiteDataDir.resolve(FAKE_KOTLIN_NATIVE_HOME_RELATIVE_PATH)
-
-        kotlinNativeHome.walkTopDown()
-            .filter { it.isFile }
-            .forEach { pathInTestSuite ->
-                // need to put copied file one directory upper than the project root, so adding ".." to the beginning of relative path
-                // reason: distribution KLIBs should not be appear in IDEA indexes, so they should be located outside of the project root
-                val relativePathInProject = DOUBLE_DOT_PATH.resolve(pathInTestSuite.relativeTo(testSuiteDataDir))
-                createProjectSubFile(relativePathInProject.toString(), pathInTestSuite.readText())
-            }
-    }
-}
 
 class GradleNativeLibrariesInIDENamingTest : TestCaseWithFakeKotlinNative() {
 
-    // Test naming of Kotlin/Native libraries in projects with Gradle plugin 1.3.21+
+    // Test naming of Kotlin/Native libraries
     @Test
     fun testLibrariesNaming() {
         configureProject()
@@ -56,15 +37,6 @@ class GradleNativeLibrariesInIDENamingTest : TestCaseWithFakeKotlinNative() {
         myProject.allModules().forEach { assertValidModule(it, projectPath) }
     }
 
-    // Test naming of Kotlin/Native libraries in projects with Gradle plugin 1.3.20 or earlier
-    @Test
-    fun testLegacyLibrariesNaming() {
-        configureProject()
-        importProject()
-
-        myProject.allModules().forEach { assertValidModule(it, projectPath) }
-    }
-
     override fun getExternalSystemConfigFileName() = GradleConstants.KOTLIN_DSL_SCRIPT_NAME
 
     override fun testDataDirName() = "nativeLibraries"
@@ -77,7 +49,6 @@ class GradleNativeLibrariesInIDENamingTest : TestCaseWithFakeKotlinNative() {
     }
 }
 
-private val FAKE_KOTLIN_NATIVE_HOME_RELATIVE_PATH = File("kotlin-native-data-dir", "kotlin-native-PLATFORM-VERSION")
 private val NATIVE_LIBRARY_NAME_REGEX = Regex("^Kotlin/Native ([\\d\\w\\.-]+) - ([\\w\\d]+)( \\[([\\w\\d_]+)\\])?$")
 
 private val NATIVE_LINUX_LIBRARIES = listOf(
@@ -100,7 +71,6 @@ private val NATIVE_MINGW_LIBRARIES = listOf(
     "Kotlin/Native {version} - opengl32 [mingw_x64]",
     "Kotlin/Native {version} - windows [mingw_x64]"
 )
-private val DOUBLE_DOT_PATH = File("..")
 
 private val Module.libraries
     get() = ModuleRootManager.getInstance(this).orderEntries
diff --git a/idea/idea-gradle-native/tests/org/jetbrains/kotlin/ide/konan/gradle/TestCaseWithFakeKotlinNative.kt b/idea/idea-gradle-native/tests/org/jetbrains/kotlin/ide/konan/gradle/TestCaseWithFakeKotlinNative.kt
new file mode 100644
index 00000000000..c7f400f4c55
--- /dev/null
+++ b/idea/idea-gradle-native/tests/org/jetbrains/kotlin/ide/konan/gradle/TestCaseWithFakeKotlinNative.kt
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.ide.konan.gradle
+
+import org.jetbrains.kotlin.idea.codeInsight.gradle.GradleImportingTestCase
+import java.io.File
+
+abstract class TestCaseWithFakeKotlinNative : GradleImportingTestCase() {
+    protected fun configureProject() {
+        configureByFiles()
+
+        // include data dir with fake Kotlin/Native libraries
+        val testSuiteDataDir = testDataDirectory().parentFile
+        val kotlinNativeHome = testSuiteDataDir.resolve(FAKE_KOTLIN_NATIVE_HOME_RELATIVE_PATH)
+
+        kotlinNativeHome.walkTopDown()
+            .filter { it.isFile }
+            .forEach { pathInTestSuite ->
+                // need to put copied file one directory upper than the project root, so adding ".." to the beginning of relative path
+                // reason: distribution KLIBs should not be appear in IDEA indexes, so they should be located outside of the project root
+                val relativePathInProject = DOUBLE_DOT_PATH.resolve(pathInTestSuite.relativeTo(testSuiteDataDir))
+                createProjectSubFile(relativePathInProject.toString(), pathInTestSuite.readText())
+            }
+    }
+}
+
+internal val FAKE_KOTLIN_NATIVE_HOME_RELATIVE_PATH = File("kotlin-native-data-dir", "kotlin-native-PLATFORM-VERSION")
+internal val DOUBLE_DOT_PATH = File("..")
diff --git a/idea/testData/gradle/nativeLibraries/legacyLibrariesNaming/build.gradle.kts b/idea/testData/gradle/nativeLibraries/legacyLibrariesNaming/build.gradle.kts
deleted file mode 100644
index 3f34ab4878d..00000000000
--- a/idea/testData/gradle/nativeLibraries/legacyLibrariesNaming/build.gradle.kts
+++ /dev/null
@@ -1,48 +0,0 @@
-plugins {
-    kotlin("multiplatform") version "{{kotlin_plugin_version}}"
-}
-
-repositories {
-    mavenCentral()
-}
-
-kotlin {
-    jvm()
-    js()
-    macosX64()
-    linuxX64()
-    mingwX64()
-
-    sourceSets {
-        val commonMain by getting {
-            dependencies {
-                implementation(kotlin("stdlib-common"))
-            }
-        }
-
-        val commonTest by getting {
-            dependencies {
-                implementation(kotlin("test-common"))
-                implementation(kotlin("test-annotations-common"))
-            }
-        }
-
-        jvm().compilations["main"].defaultSourceSet {
-            dependencies {
-                implementation(kotlin("stdlib-jdk8"))
-            }
-        }
-
-        jvm().compilations["test"].defaultSourceSet {
-            dependencies {
-                implementation(kotlin("test-junit"))
-            }
-        }
-
-        js().compilations["main"].defaultSourceSet {
-            dependencies {
-                implementation(kotlin("stdlib-js"))
-            }
-        }
-    }
-}
diff --git a/idea/testData/gradle/nativeLibraries/legacyLibrariesNaming/gradle.properties b/idea/testData/gradle/nativeLibraries/legacyLibrariesNaming/gradle.properties
deleted file mode 100644
index c7965da73e1..00000000000
--- a/idea/testData/gradle/nativeLibraries/legacyLibrariesNaming/gradle.properties
+++ /dev/null
@@ -1 +0,0 @@
-org.jetbrains.kotlin.native.home=../kotlin-native-data-dir/kotlin-native-PLATFORM-VERSION