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Merged
hauntsaninja merged 1 commit into from
Mar 11, 2023
Merged

gh-101821: Cover ast.main function #101822

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gh-101821: Cover ast.main function
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@sobolevn
sobolevn committed Feb 12, 2023
commit a5821a9b83b40f9089e627d99560b6e82615b39b
20 changes: 20 additions & 0 deletions Lib/test/test_ast.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
from textwrap import dedent

from test import support
from test.support import os_helper, script_helper
from test.support.ast_helper import ASTTestMixin

def to_tuple(t):
Expand Down Expand Up @@ -2564,6 +2565,25 @@ def test_subinterpreter(self):
self.assertEqual(res, 0)


class ASTMainTests(unittest.TestCase):
# Tests `ast.main()` function.

def test_cli_file_input(self):
code = "print(1, 2, 3)"
expected = ast.dump(ast.parse(code), indent=3)

with os_helper.temp_dir() as tmp_dir:
filename = os.path.join(tmp_dir, "test_module.py")
with open(filename, 'w', encoding='utf-8') as f:
f.write(code)
res, _ = script_helper.run_python_until_end("-m", "ast", filename)

self.assertEqual(res.err, b"")
self.assertEqual(expected.splitlines(),
res.out.decode("utf8").splitlines())
self.assertEqual(res.rc, 0)


def main():
if __name__ != '__main__':
return
Expand Down