def test_hierarchy_loc_to_iloc_a(self):
groups = Index(('A', 'B', 'C'))
dates = IndexDate.from_date_range('2018-01-01', '2018-01-04')
observations = Index(('x', 'y'))
lvl2a = IndexLevel(index=observations)
lvl2b = IndexLevel(index=observations, offset=2)
lvl2c = IndexLevel(index=observations, offset=4)
lvl2d = IndexLevel(index=observations, offset=6)
lvl2_targets = ArrayGO((lvl2a, lvl2b, lvl2c, lvl2d))
lvl1a = IndexLevel(index=dates, targets=lvl2_targets, offset=0)
lvl1b = IndexLevel(index=dates,
targets=lvl2_targets,
offset=len(lvl1a))
lvl1c = IndexLevel(index=dates,
targets=lvl2_targets,
offset=len(lvl1a) * 2)
# we need as many targets as len(index)
lvl0 = IndexLevel(index=groups, targets=ArrayGO((lvl1a, lvl1b, lvl1c)))
self.assertEqual(len(lvl2a), 2)
self.assertEqual(len(lvl1a), 8)
self.assertEqual(len(lvl0), 24)
self.assertEqual(list(lvl2a.depths()), [1])
self.assertEqual(list(lvl1a.depths()), [2, 2, 2, 2])
self.assertEqual(list(lvl0.depths()),
[3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3])
ih = IndexHierarchy(lvl0)
self.assertEqual(len(ih), 24)
post = ih.loc_to_iloc(HLoc[['A', 'B', 'C'],
slice('2018-01-01', '2018-01-04'),
['x', 'y']])
# this will break if we recognize this can be a slice
self.assertEqual(post, list(range(len(ih))))
post = ih.loc_to_iloc(HLoc[['A', 'B', 'C'],
slice('2018-01-01', '2018-01-04'), 'x'])
self.assertEqual(post, list(range(0, len(ih), 2)))
post = ih.loc_to_iloc(HLoc['C', '2018-01-03', 'y'])
self.assertEqual(post, 21)
post = ih.loc_to_iloc(HLoc['B', '2018-01-03':, 'y'])
self.assertEqual(post, [13, 15])
post = ih.loc_to_iloc(HLoc[['B', 'C'], '2018-01-03'])
self.assertEqual(post, [12, 13, 20, 21])
post = ih.loc_to_iloc(HLoc[['A', 'C'], :, 'y'])
self.assertEqual(post, [1, 3, 5, 7, 17, 19, 21, 23])
post = ih.loc_to_iloc(HLoc[['A', 'C'], :, 'x'])
self.assertEqual(post, [0, 2, 4, 6, 16, 18, 20, 22])
def test_index_level_dtypes_all_a(self) -> None:
level0 = IndexLevel(index=Index(('a', 'b')), targets=None)
post = tuple(level0.dtypes_iter())
self.assertEqual(post[0], np.dtype('<U1'))
self.assertEqual(len(post), 1)
self.assertEqual(level0.depth, next(level0.depths()))
