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Add tests for syntax error messages that had no test coverage #153192

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Merged
serhiy-storchaka merged 1 commit into from
Jul 6, 2026
+27 −0
Merged

Add tests for syntax error messages that had no test coverage #153192

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3 changes: 3 additions & 0 deletions Lib/test/test_fstring.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1706,6 +1706,9 @@ def test_invalid_syntax_error_message(self):
with self.assertRaisesRegex(SyntaxError,
"f-string: expecting '=', or '!', or ':', or '}'"):
compile("f'{a $ b}'", "?", "exec")
with self.assertRaisesRegex(SyntaxError,
"f-string: expecting '!', or ':', or '}'"):
compile("f'{a=b}'", "?", "exec")

def test_with_two_commas_in_format_specifier(self):
error_msg = re.escape("Cannot specify ',' with ','.")
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10 changes: 10 additions & 0 deletions Lib/test/test_syntax.py
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Expand Up @@ -2238,6 +2238,16 @@
Traceback (most recent call last):
SyntaxError: only single target (not list) can be annotated
>>> 1: int
Traceback (most recent call last):
SyntaxError: illegal target for annotation
>>> -x: int = 1
Traceback (most recent call last):
SyntaxError: illegal target for annotation
>>> (x for x in y): int
Traceback (most recent call last):
SyntaxError: illegal target for annotation
# 'not' after operators:
>>> 3 + not 3
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14 changes: 14 additions & 0 deletions Lib/test/test_unpack_ex.py
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Expand Up @@ -355,6 +355,20 @@
^^^
SyntaxError: cannot use dict unpacking in a dictionary value
>>> (**a)
Traceback (most recent call last):
...
(**a)
^^
SyntaxError: cannot use dict unpacking here
>>> {**a for a in {1: 2}.items(): b}
Traceback (most recent call last):
...
{**a for a in {1: 2}.items(): b}
^^
SyntaxError: cannot use dict unpacking here
# Generator expression in function arguments
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