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import pytest
class AbstractPipeTests:
def test_pipe_exclusive(self, fs, fs_target):
fs.pipe_file(fs_target, b"data")
assert fs.cat_file(fs_target) == b"data"
with pytest.raises(FileExistsError):
fs.pipe_file(fs_target, b"data", mode="create")
fs.pipe_file(fs_target, b"new data", mode="overwrite")
assert fs.cat_file(fs_target) == b"new data"
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