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-rw-r--r--lib/sqlalchemy/testing/assertions.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sqlalchemy/testing/assertions.py b/lib/sqlalchemy/testing/assertions.py
index d8038e225..819fedcc7 100644
--- a/lib/sqlalchemy/testing/assertions.py
+++ b/lib/sqlalchemy/testing/assertions.py
@@ -247,6 +247,10 @@ def le_(a, b, msg=None):
assert a <= b, msg or "%r != %r" % (a, b)
+def is_instance_of(a, b, msg=None):
+ assert isinstance(a, b), msg or "%r is not an instance of %r" % (a, b)
+
+
def is_true(a, msg=None):
is_(a, True, msg=msg)