Index: packages/Python/lldbsuite/test/functionalities/completion/TestCompletion.py
===================================================================
--- packages/Python/lldbsuite/test/functionalities/completion/TestCompletion.py
+++ packages/Python/lldbsuite/test/functionalities/completion/TestCompletion.py
@@ -273,8 +273,8 @@
             if turn_off_re_match:
                 self.expect(
                     compare_string, msg=COMPLETION_MSG(
-                        str_input, p), exe=False, substrs=[p])
+                        str_input, p, match_strings), exe=False, substrs=[p])
             else:
                 self.expect(
                     compare_string, msg=COMPLETION_MSG(
-                        str_input, p), exe=False, patterns=[p])
+                        str_input, p, match_strings), exe=False, patterns=[p])
Index: packages/Python/lldbsuite/test/lldbtest.py
===================================================================
--- packages/Python/lldbsuite/test/lldbtest.py
+++ packages/Python/lldbsuite/test/lldbtest.py
@@ -184,9 +184,9 @@
     return "Command '%s' returns successfully" % str
 
 
-def COMPLETION_MSG(str_before, str_after):
+def COMPLETION_MSG(str_before, str_after, completions):
     '''A generic message generator for the completion mechanism.'''
-    return "'%s' successfully completes to '%s'" % (str_before, str_after)
+    return "'%s' successfully completes to '%s', but completions were:\n%s" % (str_before, str_after, "\n".join(completions))
 
 
 def EXP_MSG(str, actual, exe):