def test_handles_args_in_either_order(self):
""" It shouldn't matter whether we pass the "higher" string as the first or second param. """
low = "aaaaa"
high = "zzzzz"
mid1 = _mid_string(low, high)
mid2 = _mid_string(low, high)
self.assertEqual(mid1, mid2)
self.assertTrue(low < mid1 < high)
def test_handles_args_in_either_order(self):
"""It shouldn't matter whether we pass the "higher" string as the first or second param."""
low = "aaaaa"
high = "zzzzz"
mid1 = _mid_string(low, high)
mid2 = _mid_string(low, high)
self.assertEqual(mid1, mid2)
self.assertTrue(low < mid1 < high)
def test_handles_strings_of_different_lengths(self):
""" Strings of different lengths should return another of a length mid way between """
start = "aaa"
end = "zzzzzzzzzzzzz"
mid = _mid_string(start, end)
self.assertTrue(start < mid < end)
def test_slightly_less_basic_behaviour(self):
start = "aaaaaaaaaaaa"
end = "z"
mid_low_apprx = "l"
mid_high_apprx = "n"
result = _mid_string(start, end)
self.assertTrue(mid_low_apprx < result < mid_high_apprx)
def test_handles_strings_of_different_lengths(self):
""" Strings of different lengths should return another of a length mid way between """
start = "aaa"
end = "zzzzzzzzzzzzz"
mid = _mid_string(start, end)
self.assertTrue(start < mid < end)
def test_slightly_less_basic_behaviour(self):
start = "aaaaaaaaaaaa"
end = "z"
mid_low_apprx = "l"
mid_high_apprx = "n"
result = _mid_string(start, end)
self.assertTrue(mid_low_apprx < result < mid_high_apprx)
def test_does_not_return_string_starting_with_double_underscore(self):
""" A string that starts with a double underscore is not a valid Datastore key and so
should not be returned.
"""
# The true mid point between this start and end combination is a double underscore
start = "^^"
end = "``"
result = _mid_string(start, end)
self.assertNotEqual(result, "__")
def test_does_not_return_string_starting_with_double_underscore(self):
""" A string that starts with a double underscore is not a valid Datastore key and so
should not be returned.
"""
# The true mid point between this start and end combination is a double underscore
start = "^^"
end = "``"
result = _mid_string(start, end)
self.assertNotEqual(result, "__")
def test_handles_unicode(self):
""" It should be able to do comparisions on non-ascii strings. """
start = u"aaa£¢$›😇"
end = u"zzz🤡"
mid = _mid_string(start, end)
self.assertTrue(start < mid < end)
def test_basic_behaviour(self):
""" Test finding the midpoint between two string in an obvious case. """
start = "a"
end = "c"
self.assertEqual(_mid_string(start, end), "b")
def test_handles_unicode(self):
""" It should be able to do comparisions on non-ascii strings. """
start = u"aaa£¢$›😇"
end = u"zzz🤡"
mid = _mid_string(start, end)
self.assertTrue(start < mid < end)
def test_basic_behaviour(self):
""" Test finding the midpoint between two string in an obvious case. """
start = "a"
end = "c"
self.assertEqual(_mid_string(start, end), "b")