diff --git a/docs/intro.rst b/docs/intro.rst
index 12f67d7e..d474c864 100644
--- a/docs/intro.rst
+++ b/docs/intro.rst
@@ -405,8 +405,8 @@ This is the current list of error and warning codes:
 **(*)** In the default configuration, the checks **E121**, **E123**, **E126**,
 **E133**, **E226**, **E241**, **E242**, **E704** and **W503** are ignored because
 they are not rules unanimously accepted, and `PEP 8`_ does not enforce them.  The
-check **E133** is mutually exclusive with check **E123**.  Use switch ``--hang-
-closing`` to report **E133** instead of **E123**.
+check **E133** is mutually exclusive with check **E123**.  Use switch 
+``--hang-closing`` to report **E133** instead of **E123**.
 
 **(^)** These checks can be disabled at the line level using the ``# noqa``
 special comment.  This possibility should be reserved for special cases.
diff --git a/testsuite/E12.py b/testsuite/E12.py
index a995c955..746ea0c9 100644
--- a/testsuite/E12.py
+++ b/testsuite/E12.py
@@ -373,4 +373,12 @@ def example_issue254():
 
 print(a
 , end=' ')
+#: E133:3:1 --hang-closing
+a = [
+    12
+]
+#: Okay --hang-closing
+a = [
+    12
+    ]
 #:
diff --git a/testsuite/support.py b/testsuite/support.py
index 003f181b..2b1f7a01 100644
--- a/testsuite/support.py
+++ b/testsuite/support.py
@@ -146,6 +146,21 @@ def init_tests(pep8style):
     report = pep8style.init_report(TestReport)
     runner = pep8style.input_file
 
+    def set_hang_closing_option(pep8style, codes):
+        """Set hang-closing option if present in the test codes.
+
+        (mutates pep8style)
+
+        Usage in test:
+        #: E133:3:1 --hang-closing
+        or
+        #: Okay --hang-closing
+
+        """
+        pep8style.options.hang_closing = '--hang-closing' in codes
+        codes = [c for c in codes if c != '--hang-closing']
+        return codes
+
     def run_tests(filename):
         """Run all the tests from a file."""
         lines = readlines(filename) + ['#:\n']
@@ -162,6 +177,9 @@ def run_tests(filename):
             if codes and index:
                 if 'noeol' in codes:
                     testcase[-1] = testcase[-1].rstrip('\n')
+
+                codes = set_hang_closing_option(pep8style, codes)
+
                 codes = [c for c in codes
                          if c not in ('Okay', 'noeol')]
                 # Run the checker