Add explicit tests based on examples in issue #52.

test_natsort/test_fake_fastnumbers.py

@@ -78,6 +78,8 @@ def test_fast_float_converts_float_string_to_float_example():
     assert isnan(fast_float('nan'))
     assert isnan(fast_float('+nan'))
     assert isnan(fast_float('-NaN'))
+    assert fast_float('۱۲.۱۲') == 12.12
+    assert fast_float('-۱۲.۱۲') == -12.12
 
 
 @given(floats(allow_nan=False))
@@ -117,6 +119,8 @@ def test_fast_int_leaves_float_string_as_is(x):
 def test_fast_int_converts_int_string_to_int_example():
     assert fast_int('-45') == -45
     assert fast_int('+45') == 45
+    assert fast_int('۱۲') == 12
+    assert fast_int('-۱۲') == -12
 
 
 @given(integers())

test_natsort/test_natsorted.py

@@ -280,3 +280,13 @@ def test_natsorted_sorts_an_odd_collection_of_string():
                             'apple', 'banana', 'corn', '~~~~~~']
     assert natsorted(a, alg=ns.NUMAFTER) == ['Apple', 'Banana', 'Corn',
                                              'apple', 'banana', 'corn', '~~~~~~', '73', '5039']
+
+
+def test_natsorted_sorts_mixed_ascii_and_non_ascii_numbers():
+    a = ['1st street', '10th street', '2nd street', '2 street', '1 street', '1street',
+         '11 street', 'street 2', 'street 1', 'Street 11', '۲ street', '۱ street', '۱street',
+         '۱۲street', '۱۱ street', 'street ۲', 'street ۱', 'street ۱', 'street ۱۲', 'street ۱۱']
+    expected = ['1 street', '۱ street', '1st street', '1street', '۱street', '2 street', '۲ street',
+                '2nd street', '10th street', '11 street', '۱۱ street', '۱۲street', 'street 1',
+                'street ۱', 'street ۱', 'street 2', 'street ۲', 'Street 11', 'street ۱۱', 'street ۱۲']
+    assert natsorted(a, alg=ns.IGNORECASE) == expected