Index: gc_core/py/lang_core/tests_core.py
==================================================================
--- gc_core/py/lang_core/tests_core.py
+++ gc_core/py/lang_core/tests_core.py
@@ -62,10 +62,11 @@
     def setUpClass (cls):
         gc_engine.load()
         cls._zError = re.compile(r"\{\{.*?\}\}")
         cls._zRuleEnd = re.compile(r"_a\d+_\d+$")
         cls._aTestedRules = set()
+        cls._oSpellChecker = gc_engine.getSpellChecker()
 
     def test_parse (self):
         zOption = re.compile("^__([a-zA-Z0-9]+)__ ")
         spHere, _ = os.path.split(__file__)
         spfParsingTest = os.path.join(spHere, "gc_test.txt")
@@ -142,17 +143,19 @@
             sListErr += "    * {sLineId} / {sRuleId}  at  {nStart}:{nEnd}\n".format(**dErr)
             lAllSugg.append("|".join(dErr["aSuggestions"]))
             self._aTestedRules.add(dErr["sRuleId"].rstrip("0123456789"))
             # test messages
             if False:
-                aMsgErrs = gc_engine.parse(purgeMessage(dErr["sMessage"]))
-                if aMsgErrs or "<start>" in dErr["sMessage"] or "<end>" in dErr["sMessage"]:
-                    aSelectedErrs = [ dMsgErr  for dMsgErr in sorted(aMsgErrs, key=lambda d: d["nStart"])  if self._zRuleEnd.sub("", dMsgErr["sRuleId"]) != self._zRuleEnd.sub("", dErr["sRuleId"]) ]
-                    if aSelectedErrs:
-                        print("\n# Error in: <" + dErr["sMessage"] + ">\n    " + dErr["sLineId"] + " / " + dErr["sRuleId"])
-                        for dMsgErr in aSelectedErrs:
-                            print("        error: {sLineId} / {sRuleId}  at  {nStart}:{nEnd}".format(**dMsgErr))
+                aGramErrs = gc_engine.parse(purgeMessage(dErr["sMessage"]))
+                aGramErrs = [ dMsgErr  for dMsgErr in sorted(aGramErrs, key=lambda d: d["nStart"])  if self._zRuleEnd.sub("", dMsgErr["sRuleId"]) != self._zRuleEnd.sub("", dErr["sRuleId"]) ]
+                aSpellErrs = self._oSpellChecker.parseParagraph(re.sub("‹\\w+›", lambda m: " " * len(m.group(0)), dErr["sMessage"]))
+                if aGramErrs or aSpellErrs or "<start>" in dErr["sMessage"] or "<end>" in dErr["sMessage"]:
+                    print("\n# Error in: <" + dErr["sMessage"] + ">\n    " + dErr["sLineId"] + " / " + dErr["sRuleId"])
+                    for dMsgErr in aGramErrs:
+                        print("        error: {sLineId} / {sRuleId}  at  {nStart}:{nEnd}".format(**dMsgErr))
+                    for dMsgErr in aSpellErrs:
+                        print("        spelling mistake: <{sValue}>  at {nStart}:{nEnd}".format(**dMsgErr))
         return sRes, sListErr, "|||".join(lAllSugg)
 
     def _getExpectedErrors (self, sLine):
         sRes = " " * len(sLine)
         for i, m in enumerate(self._zError.finditer(sLine)):