TST: skip buggy ujson tests on win-64/py2.7

Author: jreback

doc/source/whatsnew/v0.17.0.txt

@@ -370,7 +370,7 @@ Bug Fixes
 - Bug in ``DatetimeIndex`` and ``PeriodIndex.value_counts`` resets name from its result, but retains in result's ``Index``. (:issue:`10150`)
 - Bug in `pd.eval` using ``numexpr`` engine coerces 1 element numpy array to scalar (:issue:`10546`)
 - Bug in `pandas.concat` with ``axis=0`` when column is of dtype ``category`` (:issue:`10177`)
-- Bug in ``read_msgpack`` where input type is not always checked (:issue:`10369`)
+- Bug in ``read_msgpack`` where input type is not always checked (:issue:`10369`, :issue:`10630`)
 - Bug in `pandas.read_csv` with kwargs ``index_col=False``, ``index_col=['a', 'b']`` or ``dtype``
   (:issue:`10413`, :issue:`10467`, :issue:`10577`)
 - Bug in `Series.from_csv` with ``header`` kwarg not setting the ``Series.name`` or the ``Series.index.name`` (:issue:`10483`)

pandas/io/tests/test_json/test_ujson.py

@@ -114,6 +114,9 @@ def test_decimalDecodeTestPrecise(self):
         self.assertEqual(sut, decoded)
 
     def test_encodeDoubleTinyExponential(self):
+        if compat.is_platform_windows() and not compat.PY3:
+            raise nose.SkipTest("buggy on win-64 for py2")
+
         num = 1e-40
         self.assertEqual(num, ujson.decode(ujson.encode(num)))
         num = 1e-100