postgres text array quoting

With the attached testcase I get the following error:

$ nosetests tests.store.postgres:PostgresStoreTest.test_list_text_variable
F
======================================================================
FAIL: test_list_text_variable (tests.store.postgres.PostgresStoreTest)
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Traceback (most recent call last):
  File "/Users/me/Projects/storm/tests/mocker.py", line 102, in test_method_wrapper
    result = test_method()
  File "/Users/me/Projects/storm/tests/store/postgres.py", line 193, in test_list_text_variable
    self.assertEquals(result.get_one(), (expected,))
AssertionError: ([u'{"quote": "\\\\""}', u'{"backslash": "\\\\\\\\"}'],) != ([u'{"quote": "\\""}', u'{"backslash": "\\\\"}'],)

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Ran 1 test in 0.125s

FAILED (failures=1)