def test_empty_in_str(self):
in_str = ""
find = "asdf"
replace = "qqq"
expected = ""
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)
def test_empty_replace(self):
in_str = "My string bla"
find = "My "
replace = ""
expected = "string bla"
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)
def test_joint(self):
in_str = "oldoldold oldold"
find = "old"
replace = "new"
expected = "newnewnew newnew"
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)
def test_no_spaces(self):
in_str = "abcdabvgabcqwsabcabc"
find = "abc"
replace = "123456789"
expected = "123456789dabvg123456789qws123456789123456789"
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)
def test_nothing_to_replace(self):
in_str = "My string bla bla"
find = "not contained"
replace = "some string"
expected = in_str
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)
def test_overlapping(self):
in_str = "AAAAA"
find = "AA"
replace = "NEW"
expected = "NEWNEWA"
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)
def test_replace_multiple_bigger_with_smaller(self):
in_str = "string my string bla"
find = "string"
replace = "bla"
expected = "bla my bla bla"
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)
def test_replace_multiple_smaller_with_bigger(self):
in_str = "My string My bla My My"
find = "My"
replace = "Your"
expected = "Your string Your bla Your Your"
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)
def test_replace_smaller_with_bigger(self):
in_str = "My string bla"
find = "My"
replace = "Your"
expected = "Your string bla"
actual = str_replace(in_str, find, replace)
self.assertEqual(expected, actual)