test_indexing.py 文件源码

def test_reindex(self):

        identity = self.series.reindex(self.series.index)

        # __array_interface__ is not defined for older numpies
        # and on some pythons
        try:
            self.assertTrue(np.may_share_memory(self.series.index,
                                                identity.index))
        except (AttributeError):
            pass

        self.assertTrue(identity.index.is_(self.series.index))
        self.assertTrue(identity.index.identical(self.series.index))

        subIndex = self.series.index[10:20]
        subSeries = self.series.reindex(subIndex)

        for idx, val in compat.iteritems(subSeries):
            self.assertEqual(val, self.series[idx])

        subIndex2 = self.ts.index[10:20]
        subTS = self.ts.reindex(subIndex2)

        for idx, val in compat.iteritems(subTS):
            self.assertEqual(val, self.ts[idx])
        stuffSeries = self.ts.reindex(subIndex)

        self.assertTrue(np.isnan(stuffSeries).all())

        # This is extremely important for the Cython code to not screw up
        nonContigIndex = self.ts.index[::2]
        subNonContig = self.ts.reindex(nonContigIndex)
        for idx, val in compat.iteritems(subNonContig):
            self.assertEqual(val, self.ts[idx])

        # return a copy the same index here
        result = self.ts.reindex()
        self.assertFalse((result is self.ts))