diff --git a/python/junit5Tests-framework/intellij.python.community.junit5Tests.framework.iml b/python/junit5Tests-framework/intellij.python.community.junit5Tests.framework.iml
index d2619ec7f59b..b658b3b0829a 100644
--- a/python/junit5Tests-framework/intellij.python.community.junit5Tests.framework.iml
+++ b/python/junit5Tests-framework/intellij.python.community.junit5Tests.framework.iml
@@ -31,5 +31,6 @@
     <orderEntry type="module" module-name="intellij.python.community.plugin" scope="RUNTIME" />
     <orderEntry type="module" module-name="intellij.community.wintools" scope="TEST" />
     <orderEntry type="module" module-name="intellij.python.community.impl.poetry" />
+    <orderEntry type="module" module-name="intellij.platform.ide.impl" scope="TEST" />
   </component>
 </module>
\ No newline at end of file
diff --git a/python/junit5Tests-framework/src/com/intellij/python/junit5Tests/TestTools.kt b/python/junit5Tests-framework/src/com/intellij/python/junit5Tests/TestTools.kt
index b135860b230a..5f8fcbd0f6da 100644
--- a/python/junit5Tests-framework/src/com/intellij/python/junit5Tests/TestTools.kt
+++ b/python/junit5Tests-framework/src/com/intellij/python/junit5Tests/TestTools.kt
@@ -1,10 +1,17 @@
-// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+// Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.python.junit5Tests
 
 import com.intellij.execution.configurations.PathEnvironmentVariableUtil
+import com.intellij.openapi.application.EDT
+import com.intellij.openapi.application.writeIntentReadAction
+import com.intellij.openapi.fileEditor.FileEditorManager
+import com.intellij.openapi.fileEditor.impl.EditorHistoryManager
+import com.intellij.openapi.project.Project
 import com.intellij.openapi.util.SystemInfoRt
 import com.jetbrains.python.PythonBinary
 import com.jetbrains.python.Result
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 import org.junit.jupiter.api.Assertions
 import kotlin.io.path.Path
 
@@ -28,4 +35,18 @@ fun Result<*, *>.assertFail() {
     is Result.Failure -> Assertions.assertNotNull(this.error, "No error")
     is Result.Success -> Assertions.fail("Unexpected success: ${this.result}")
   }
+}
+
+/**
+ * Close all files opened in [project]. Might be useful to call in `finally` or in [org.junit.jupiter.api.AfterEach]
+ */
+suspend fun closeAllFiles(project: Project): Unit = withContext(Dispatchers.EDT) {
+  writeIntentReadAction {
+    FileEditorManager.getInstance(project).apply {
+      for (openFile in openFiles) {
+        closeFile(openFile)
+      }
+    }
+  }
+  EditorHistoryManager.getInstance(project).removeAllFiles()
 }
\ No newline at end of file