diff --git a/idea/tests/org/jetbrains/kotlin/idea/scratch/AbstractScratchRunActionTest.kt b/idea/tests/org/jetbrains/kotlin/idea/scratch/AbstractScratchRunActionTest.kt
index 21e555ef95e..e3568ab5659 100644
--- a/idea/tests/org/jetbrains/kotlin/idea/scratch/AbstractScratchRunActionTest.kt
+++ b/idea/tests/org/jetbrains/kotlin/idea/scratch/AbstractScratchRunActionTest.kt
@@ -25,6 +25,7 @@ import com.intellij.openapi.roots.CompilerModuleExtension
 import com.intellij.openapi.roots.ModuleRootModificationUtil
 import com.intellij.openapi.util.io.FileUtil
 import com.intellij.openapi.vfs.VirtualFile
+import com.intellij.openapi.vfs.newvfs.impl.VfsRootAccess
 import com.intellij.psi.PsiDocumentManager
 import com.intellij.psi.PsiManager
 import com.intellij.testFramework.FileEditorManagerTestCase
@@ -33,6 +34,8 @@ import com.intellij.testFramework.PsiTestUtil
 import com.intellij.testFramework.TestActionEvent
 import com.intellij.util.ui.UIUtil
 import org.jetbrains.kotlin.idea.KotlinLanguage
+import org.jetbrains.kotlin.idea.core.script.ScriptDependenciesManager
+import org.jetbrains.kotlin.idea.highlighter.KotlinHighlightingUtil
 import org.jetbrains.kotlin.idea.scratch.actions.RunScratchAction
 import org.jetbrains.kotlin.idea.scratch.output.InlayScratchFileRenderer
 import org.jetbrains.kotlin.idea.test.KotlinWithJdkAndRuntimeLightProjectDescriptor
@@ -102,7 +105,12 @@ abstract class AbstractScratchRunActionTest : FileEditorManagerTestCase() {
 
         myFixture.openFileInEditor(scratchFile)
 
+        ScriptDependenciesManager.updateScriptDependenciesSynchronously(scratchFile, project)
+
         val psiFile = PsiManager.getInstance(project).findFile(scratchFile) ?: error("Couldn't find psi file ${sourceFile.path}")
+
+        if (!KotlinHighlightingUtil.shouldHighlight(psiFile)) error("Highlighting for scratch file is switched off")
+
         val (editor, scratchPanel) = getEditorWithScratchPanel(myManager, scratchFile)?: error("Couldn't find scratch panel")
         scratchPanel.setReplMode(isRepl)
 
@@ -164,12 +172,16 @@ abstract class AbstractScratchRunActionTest : FileEditorManagerTestCase() {
     override fun setUp() {
         super.setUp()
 
+        VfsRootAccess.allowRootAccess(KotlinTestUtils.getHomeDirectory())
+
         PluginTestCaseBase.addJdk(myFixture.projectDisposable) { PluginTestCaseBase.fullJdk() }
     }
 
     override fun tearDown() {
         super.tearDown()
 
+        VfsRootAccess.disallowRootAccess(KotlinTestUtils.getHomeDirectory())
+
         ScratchFileService.getInstance().scratchesMapping.mappings.forEach { file, _ ->
             runWriteAction { file.delete(this) }
         }