diff --git a/java/java-tests/testSrc/com/intellij/psi/util/MapBackTextBlockTextRangeTest.java b/java/java-tests/testSrc/com/intellij/psi/util/MapBackTextBlockTextRangeTest.java
index a69ffe70985a..864559cfa862 100644
--- a/java/java-tests/testSrc/com/intellij/psi/util/MapBackTextBlockTextRangeTest.java
+++ b/java/java-tests/testSrc/com/intellij/psi/util/MapBackTextBlockTextRangeTest.java
@@ -1,7 +1,8 @@
-// Copyright 2000-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2026 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.psi.util;
 
 import com.intellij.openapi.util.TextRange;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.JavaPsiFacade;
 import com.intellij.psi.PsiElementFactory;
 import com.intellij.psi.PsiLiteralExpression;
@@ -10,23 +11,23 @@ import com.intellij.testFramework.LightPlatformCodeInsightTestCase;
 public class MapBackTextBlockTextRangeTest extends LightPlatformCodeInsightTestCase {
 
   public void testEmpty() {
-    doTest("\"\"\"\n\"\"\"", 0, 0, new TextRange(4, 4));
+    doTest("\"\"\"\n\"\"\"", 0, 0, new TextRange(4, 4), "");
   }
 
   public void testExtraCharsBeforeContent() {
-    doTest("\"\"\"   \n\"\"\"", 0, 0, new TextRange(7, 7));
+    doTest("\"\"\"   \n\"\"\"", 0, 0, new TextRange(7, 7), "");
   }
 
   public void testOneLineContentNoTrailingLine() {
-    doTest("\"\"\"\n   foo  \"\"\"", 0, 5, new TextRange(7, 12));
+    doTest("\"\"\"\n   foo  \"\"\"", 0, 5, new TextRange(7, 12), "foo  ");
   }
 
   public void testOneLineContentTrailingLine() {
-    doTest("\"\"\"\nfoo  \n \"\"\"", 0, 3, new TextRange(4, 7));
+    doTest("\"\"\"\nfoo  \n \"\"\"", 0, 3, new TextRange(4, 7), "foo");
   }
 
   public void testTrailingLineWithContent() {
-    doTest("\"\"\"\nfoo  \n b\"\"\"", 0, 6, new TextRange(4, 12));
+    doTest("\"\"\"\nfoo  \n b\"\"\"", 0, 6, new TextRange(4, 12), "foo  \n b");
   }
 
   public void testContentWithBlankLines() {
@@ -35,28 +36,31 @@ public class MapBackTextBlockTextRangeTest extends LightPlatformCodeInsightTestC
                  \s
               foo \t\f
                  \s
-                    ""\"""", 0, 6, new TextRange(9, 24));
+                    ""\"""", 0, 6, new TextRange(9, 24), "\n foo \t\f\n     \n");
   }
 
   public void testIndentNonZero() {
-    doTest("\"\"\"\n foo\n bar\n \"\"\"", 0, 8, new TextRange(5, 14));
+    doTest("\"\"\"\n foo\n bar\n \"\"\"", 0, 8, new TextRange(5, 14), "foo\n bar\n");
   }
 
   public void testContentWithEscapeSequences() {
-    doTest("\"\"\"\n\\u005c\\u005c\\u005c\\u005c\"\"\"", 1, 2, new TextRange(10, 16));
+    doTest("\"\"\"\n\\u005c\\u005c\\u005c\\u005c\"\"\"", 1, 2, new TextRange(10, 16), "\\u005c");
   }
 
   public void testInvalidRange() {
-    doTest("\"\"\"\n\"\"\"", 0, 1, null);
+    doTest("\"\"\"\n\"\"\"", 0, 1, null, null);
   }
 
-  private void doTest(String blockText, int from, int to, TextRange expectedRange) {
+  private void doTest(String blockText, int from, int to, TextRange expectedRange, String expectedRangeText) {
     PsiElementFactory factory = JavaPsiFacade.getElementFactory(getProject());
     PsiLiteralExpression textBlock = (PsiLiteralExpression)factory.createExpressionFromText(blockText, null);
     assertTrue(textBlock.isTextBlock());
     int indent = PsiLiteralUtil.getTextBlockIndent(textBlock);
     assertTrue(indent >= 0);
-    TextRange actualRange = PsiLiteralUtil.mapBackTextBlockRange(textBlock.getText(), from, to, indent);
-    assertEquals(expectedRange, actualRange);
+    assertEquals(expectedRange, PsiLiteralUtil.mapBackTextBlockRange(textBlock.getText(), from, to, indent));
+    if (expectedRange != null) {
+      assertEquals(StringUtil.escapeStringCharacters(expectedRangeText), 
+                   StringUtil.escapeStringCharacters(expectedRange.substring(blockText)));
+    }
   }
 }