How to use proselint - 10 common examples

def test_multiple_matches(self):
        """Test that multiple matches are found correctly."""
        assert len(
            chk("""abc and abc are as easy as 123""",
                self.l, self.err, self.msg)) == 2
        assert len(
            chk("""ABC and abc are as easy as 123""",
                self.l, self.err, self.msg, ignore_case=True)) == 2
        assert chk(
            """abcabc are easy as 123""", self.l, self.err, self.msg) == []

def this_check(self):
        """Boilerplate."""
        return chk

def test_starting_with_lowercase_but_is_error(self):
        """Starting with lowercase but should be an error."""
        text = 'but I don\'t know what to say?'
        errors = but.check_dont_start_with_buts(text)
        assert_equals(len(errors), 1)

def test_starting_with_But_is_error(self):
        """Starting with but should be an error."""
        text = 'But I don\'t know what to say?'
        errors = but.check_dont_start_with_buts(text)
        assert_equals(len(errors), 1)

def test_but_in_middle_of_paragraph(self):
        """But in the middle of a sentence is ok."""
        text = 'I\'ve got nothing but nice things to say.'
        errors = but.check_dont_start_with_buts(text)
        assert_equals(len(errors), 0)

def test_but_after_a_newline(self):
        """But after a newline should be an error."""
        text = '\nBut what more.'
        errors = but.check_dont_start_with_buts(text)
        assert_equals(len(errors), 1)

def test_starts_with_valid_word(self):
        """Starting with a valid word is not an error."""
        text = 'Hello.'
        errors = but.check_dont_start_with_buts(text)
        assert_equals(len(errors), 0)

def test_but_after_a_newline_and_whitespace(self):
        """But after a newline and whitespace should be an error."""
        text = '\n But what more.'
        errors = but.check_dont_start_with_buts(text)
        assert_equals(len(errors), 1)

def test_butcher_is_ok(self):
        """Butcher is not an error, even though it has a But."""
        text = 'Butchers are ok.'
        errors = but.check_dont_start_with_buts(text)
        assert_equals(len(errors), 0)

def test_50_Cent_hyphenation(self):
        """Don't flag 50's when it refers to 50 Cent's manager."""
        text = """
            Dr. Dre suggested to 50's manager that he look into signing
            Eminem to the G-Unit record label.
        """
        errors = dates.check_decade_apostrophes_short(text)
        assert len(errors) == 0