Coverage for tests / unit / parsers / test_prettier_parser.py: 100%

1"""Unit tests for prettier parser.""" 

2 

3from __future__ import annotations 

4 

5import pytest 

6from assertpy import assert_that 

7 

8from lintro.parsers.prettier.prettier_parser import parse_prettier_output 

9 

10 

11@pytest.mark.parametrize( 

12 "output", 

13 [ 

14 "", 

15 "Checking formatting...\nAll matched files use Prettier code style!", 

16 ], 

17 ids=["empty", "no_issues"], 

18) 

19def test_parse_prettier_output_returns_empty_for_no_issues(output: str) -> None: 

20 """Parse output with no issues returns empty list. 

21 

22 Args: 

23 output: The prettier output to parse. 

24 """ 

25 result = parse_prettier_output(output) 

26 assert_that(result).is_empty() 

27 

28 

29def test_parse_prettier_output_single_file_issue() -> None: 

30 """Parse single file with formatting issue.""" 

31 output = """Checking formatting... 

32[warn] src/main.js 

33[warn] Code style issues found in the above file. Run Prettier with --write to fix.""" 

34 result = parse_prettier_output(output) 

35 assert_that(result).is_length(1) 

36 assert_that(result[0].file).is_equal_to("src/main.js") 

37 assert_that(result[0].code).is_equal_to("FORMAT") 

38 assert_that(result[0].message).is_equal_to("Code style issues found") 

39 

40 

41def test_parse_prettier_output_multiple_file_issues() -> None: 

42 """Parse multiple files with formatting issues.""" 

43 output = """Checking formatting... 

44[warn] src/a.js 

45[warn] src/b.ts 

46[warn] src/c.json 

47[warn] Code style issues found in the above files. Run Prettier with --write to fix.""" 

48 result = parse_prettier_output(output) 

49 assert_that(result).is_length(3) 

50 assert_that(result[0].file).is_equal_to("src/a.js") 

51 assert_that(result[1].file).is_equal_to("src/b.ts") 

52 assert_that(result[2].file).is_equal_to("src/c.json") 

53 

54 

55def test_parse_prettier_output_ansi_escape_codes_stripped() -> None: 

56 """Strip ANSI escape codes from output.""" 

57 output = "[\x1b[33mwarn\x1b[39m] src/file.js" 

58 result = parse_prettier_output(output) 

59 assert_that(result).is_length(1) 

60 assert_that(result[0].file).is_equal_to("src/file.js") 

61 

62 

63def test_parse_prettier_output_ignores_code_style_message() -> None: 

64 """Ignore the 'Code style issues' summary line.""" 

65 output = """[warn] src/file.js 

66[warn] Code style issues found in the above file. Run Prettier with --write to fix.""" 

67 result = parse_prettier_output(output) 

68 assert_that(result).is_length(1) 

69 assert_that(result[0].file).is_equal_to("src/file.js") 

70 

71 

72def test_parse_prettier_output_blank_lines_ignored() -> None: 

73 """Blank lines are ignored.""" 

74 output = """[warn] src/a.js 

75 

76[warn] src/b.js""" 

77 result = parse_prettier_output(output) 

78 assert_that(result).is_length(2) 

79 

80 

81def test_parse_prettier_output_default_line_and_column() -> None: 

82 """Default line and column are 1.""" 

83 output = "[warn] src/file.js" 

84 result = parse_prettier_output(output) 

85 assert_that(result[0].line).is_equal_to(1) 

86 assert_that(result[0].column).is_equal_to(1) 

87 

88 

89def test_parse_prettier_output_non_warn_lines_ignored() -> None: 

90 """Lines not starting with [warn] are ignored.""" 

91 output = """Checking formatting... 

92[info] Some info message 

93[warn] src/file.js 

94All done!""" 

95 result = parse_prettier_output(output) 

96 assert_that(result).is_length(1)