diff --git a/platform/platform-tests/testSrc/com/intellij/openapi/editor/impl/EditorImplTest.java b/platform/platform-tests/testSrc/com/intellij/openapi/editor/impl/EditorImplTest.java
index 88937d8fbff9..5c2dd2a28bfa 100644
--- a/platform/platform-tests/testSrc/com/intellij/openapi/editor/impl/EditorImplTest.java
+++ b/platform/platform-tests/testSrc/com/intellij/openapi/editor/impl/EditorImplTest.java
@@ -21,6 +21,7 @@ import com.intellij.openapi.editor.Document;
 import com.intellij.openapi.editor.LogicalPosition;
 import com.intellij.openapi.editor.VisualPosition;
 import com.intellij.openapi.editor.ex.DocumentEx;
+import com.intellij.openapi.editor.ex.util.EditorUtil;
 import com.intellij.testFramework.EditorTestUtil;
 
 public class EditorImplTest extends AbstractEditorTest {
@@ -58,6 +59,8 @@ public class EditorImplTest extends AbstractEditorTest {
                           "}</selection>");
     CodeFoldingManager.getInstance(ourProject).buildInitialFoldings(myEditor);
     configureSoftWraps(32);
+    assertEquals(4, EditorUtil.getTabSize(myEditor));
+    
     Document document = myEditor.getDocument();
     for (int i = document.getLineCount() - 1; i >= 0; i--) {
       document.insertString(document.getLineStartOffset(i), "//");