+++ /dev/null
-from typing import List, Tuple
-
-from black.trans import iter_fexpr_spans
-
-
-def test_fexpr_spans() -> None:
- def check(
- string: str, expected_spans: List[Tuple[int, int]], expected_slices: List[str]
- ) -> None:
- spans = list(iter_fexpr_spans(string))
-
- # Checking slices isn't strictly necessary, but it's easier to verify at
- # a glance than only spans
- assert len(spans) == len(expected_slices)
- for (i, j), slice in zip(spans, expected_slices):
- assert 0 <= i <= j <= len(string)
- assert string[i:j] == slice
-
- assert spans == expected_spans
-
- # Most of these test cases omit the leading 'f' and leading / closing quotes
- # for convenience
- # Some additional property-based tests can be found in
- # https://github.com/psf/black/pull/2654#issuecomment-981411748
- check("""{var}""", [(0, 5)], ["{var}"])
- check("""f'{var}'""", [(2, 7)], ["{var}"])
- check("""f'{1 + f() + 2 + "asdf"}'""", [(2, 24)], ["""{1 + f() + 2 + "asdf"}"""])
- check("""text {var} text""", [(5, 10)], ["{var}"])
- check("""text {{ {var} }} text""", [(8, 13)], ["{var}"])
- check("""{a} {b} {c}""", [(0, 3), (4, 7), (8, 11)], ["{a}", "{b}", "{c}"])
- check("""f'{a} {b} {c}'""", [(2, 5), (6, 9), (10, 13)], ["{a}", "{b}", "{c}"])
- check("""{ {} }""", [(0, 6)], ["{ {} }"])
- check("""{ {{}} }""", [(0, 8)], ["{ {{}} }"])
- check("""{ {{{}}} }""", [(0, 10)], ["{ {{{}}} }"])
- check("""{{ {{{}}} }}""", [(5, 7)], ["{}"])
- check("""{{ {{{var}}} }}""", [(5, 10)], ["{var}"])
- check("""{f"{0}"}""", [(0, 8)], ["""{f"{0}"}"""])
- check("""{"'"}""", [(0, 5)], ["""{"'"}"""])
- check("""{"{"}""", [(0, 5)], ["""{"{"}"""])
- check("""{"}"}""", [(0, 5)], ["""{"}"}"""])
- check("""{"{{"}""", [(0, 6)], ["""{"{{"}"""])
- check("""{''' '''}""", [(0, 9)], ["""{''' '''}"""])
- check("""{'''{'''}""", [(0, 9)], ["""{'''{'''}"""])
- check("""{''' {'{ '''}""", [(0, 13)], ["""{''' {'{ '''}"""])
- check(
- '''f\'\'\'-{f"""*{f"+{f'.{x}.'}+"}*"""}-'y\\'\'\'\'''',
- [(5, 33)],
- ['''{f"""*{f"+{f'.{x}.'}+"}*"""}'''],
- )
- check(r"""{}{""", [(0, 2)], ["{}"])
- check("""f"{'{'''''''''}\"""", [(2, 15)], ["{'{'''''''''}"])