Copilot commented on code in PR #34547:
URL: https://github.com/apache/beam/pull/34547#discussion_r2029872547
##########
sdks/python/apache_beam/io/textio_test.py:
##########
@@ -192,6 +194,37 @@ def _run_read_test(
read_data = list(source.read(range_tracker))
self.assertCountEqual(expected_data, read_data)
+ @unittest.skipIf(platform.system() == 'Windows', 'Skipping on Windows')
+ def test_read_from_text_file_pattern_with_dot_slash(self):
+ cwd = os.getcwd()
+ expected = ['abc', 'de']
+ with TempDir() as temp_dir:
+ temp_dir.create_temp_file(suffix='.txt', lines=[b'a', b'b', b'c'])
+ temp_dir.create_temp_file(suffix='.txt', lines=[b'd', b'e'])
+
+ os.chdir(temp_dir.get_path())
+ with TestPipeline() as p:
+ dot_slash = p | 'ReadDotSlash' >> ReadFromText('./*.txt')
+ no_dot_slash = p | 'ReadNoSlash' >> ReadFromText('*.txt')
+
+ assert_that(dot_slash, equal_to(expected))
+ assert_that(no_dot_slash, equal_to(expected))
+ os.chdir(cwd)
+
Review Comment:
Consider using a try-finally block to ensure os.chdir(cwd) is executed even
if an exception is raised during pipeline execution, so that the working
directory is always restored.
```suggestion
try:
with TestPipeline() as p:
dot_slash = p | 'ReadDotSlash' >> ReadFromText('./*.txt')
no_dot_slash = p | 'ReadNoSlash' >> ReadFromText('*.txt')
assert_that(dot_slash, equal_to(expected))
assert_that(no_dot_slash, equal_to(expected))
finally:
os.chdir(cwd)
```
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