- handle parameter sets that aren't correctly formed, so that

for example an exception object made within a test suite can
still repr (error seen in Keystone)

2 files changed, 5 insertions, 1 deletions

diff --git a/lib/sqlalchemy/testing/__init__.py b/lib/sqlalchemy/testing/__init__.py
index a2663b810..f4a23d238 100644
--- a/lib/sqlalchemy/testing/__init__.py
+++ b/lib/sqlalchemy/testing/__init__.py
@@ -22,7 +22,7 @@ from .assertions import emits_warning, emits_warning_on, uses_deprecated, \
     eq_, ne_, le_, is_, is_not_, startswith_, assert_raises, \
     assert_raises_message, AssertsCompiledSQL, ComparesTables, \
     AssertsExecutionResults, expect_deprecated, expect_warnings, \
-    in_, not_in_, eq_ignore_whitespace
+    in_, not_in_, eq_ignore_whitespace, eq_regex
 
 from .util import run_as_contextmanager, rowset, fail, \
     provide_metadata, adict, force_drop_names, \
diff --git a/lib/sqlalchemy/testing/assertions.py b/lib/sqlalchemy/testing/assertions.py
index 21f9f68fb..ea50c0738 100644
--- a/lib/sqlalchemy/testing/assertions.py
+++ b/lib/sqlalchemy/testing/assertions.py
@@ -204,6 +204,10 @@ def _assert_no_stray_pool_connections():
         _STRAY_CONNECTION_FAILURES = 0
 
 
+def eq_regex(a, b, msg=None):
+    assert re.match(b, a), msg or "%r !~ %r" % (a, b)
+
+
 def eq_(a, b, msg=None):
     """Assert a == b, with repr messaging on failure."""
     assert a == b, msg or "%r != %r" % (a, b)