diff --git a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
index 9a7d8a5f5..34e24669a 100644
--- a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
@@ -298,41 +298,39 @@ EXPECTED
   end
 
   def test_table_with_line_breaks
-    raw = <<-RAW
-This is a table with line breaks:
+    raw = <<~RAW
+      This is a table with line breaks:
 
-|cell11
-continued|cell12||
-|-cell21-||cell23
-cell23 line2
-cell23 *line3*|
-|cell31|cell32
-cell32 line2|cell33|
+      |cell11
+      continued|cell12||
+      |-cell21-||cell23
+      cell23 line2
+      cell23 *line3*|
+      |cell31|cell32
+      cell32 line2|cell33|
 
-RAW
-
-    expected = <<-EXPECTED
-<p>This is a table with line breaks:</p>
-
-<table>
-  <tr>
-    <td>cell11<br />continued</td>
-    <td>cell12</td>
-    <td></td>
-  </tr>
-  <tr>
-    <td><del>cell21</del></td>
-    <td></td>
-    <td>cell23<br/>cell23 line2<br/>cell23 <strong>line3</strong></td>
-  </tr>
-  <tr>
-    <td>cell31</td>
-    <td>cell32<br/>cell32 line2</td>
-    <td>cell33</td>
-  </tr>
-</table>
-EXPECTED
+    RAW
+    expected = <<~EXPECTED
+      <p>This is a table with line breaks:</p>
 
+      <table>
+        <tr>
+          <td>cell11<br />continued</td>
+          <td>cell12</td>
+          <td></td>
+        </tr>
+        <tr>
+          <td><del>cell21</del></td>
+          <td></td>
+          <td>cell23<br/>cell23 line2<br/>cell23 <strong>line3</strong></td>
+        </tr>
+        <tr>
+          <td>cell31</td>
+          <td>cell32<br/>cell32 line2</td>
+          <td>cell33</td>
+        </tr>
+      </table>
+    EXPECTED
     assert_equal expected.gsub(%r{\s+}, ''), to_html(raw).gsub(%r{\s+}, '')
   end