def test_no_edge_cases(self):
expected = r'[text](http://example\.com)'
actual = hyperlink('text', 'http://example.com')
assert expected == actual
def test_parentheses_in_url(self):
expected = r'[text](http://example\.com/Some\_\(thing\))'
actual = hyperlink('text', 'http://example.com/Some_(thing)')
assert expected == actual
def test_square_brackets_in_url(self):
expected = r'[text](http://example\.com/Some\_\[thing\])'
actual = hyperlink('text', 'http://example.com/Some_[thing]')
assert expected == actual
def test_parentheses_in_text(self):
expected = r'[text \(thing\)](http://example\.com)'
actual = hyperlink('text (thing)', 'http://example.com')
assert expected == actual
def test_square_brackets_in_text(self):
expected = r'[\]text\[](http://example\.com)'
actual = hyperlink(']text[', 'http://example.com')
assert expected == actual