circuitpython/tests/io/file_seek.py
David Lechner 3dc324d3f1 tests: Format all Python code with black, except tests in basics subdir.
This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.
2020-03-30 13:21:58 +11:00

35 lines
560 B
Python

f = open("io/data/file1", "rb")
print(f.seek(6))
print(f.read(5))
print(f.tell())
print(f.seek(0, 1))
print(f.read(4))
print(f.tell())
print(f.seek(-6, 2))
print(f.read(20))
print(f.tell())
print(f.seek(0, 0))
print(f.read(5))
print(f.tell())
f.close()
# test text mode
f = open("io/data/file1", "rt")
print(f.seek(6))
print(f.read(5))
print(f.tell())
f.close()
# seek closed file
f = open("io/data/file1", "r")
f.close()
try:
f.seek(1)
except (OSError, ValueError):
# CPy raises ValueError, uPy raises OSError
print("OSError or ValueError")