def test_file(self) -> None:
p = StdPath("test").with_streams(
filein=OpenBytesIO(b"hello world"), fileout=OpenBytesIO()
)
assert p.read_text() == "hello world"
p.write_text("hello mars")
assert p.fileout.read() == b"hello mars"
def test_stdin(self) -> None:
p = StdPath("-").with_streams(
stdin=io.BytesIO(b" hello\n world\n"), stdout=io.BytesIO()
)
assert p.is_file()
assert p.read_text() == "hello\nworld\n"
p.write_text("hello\nmars\n")
p.stdout.seek(0)
assert p.stdout.read() == b" hello\n mars\n"