def test_open_rw(self):
with fatfs.open(f"/{self._filename()}", "w") as f:
f.write(bytearray(b"test"))
with fatfs.open(f"/{self._filename()}", "r") as f:
b = bytearray(100)
r = f.read(b)
self.assertEqual(r, 4)
self.assertEqual(bytes(b[:4]), b"test")
def test_truncate(self):
with fatfs.open(f"/{self._filename()}", "w") as f:
f.write(bytearray(b"test" * 100))
s = fatfs.stat(f"/{self._filename()}")
self.assertEqual(s, (400, "----a", self._filename()))
with fatfs.open(f"/{self._filename()}", "a") as f:
f.seek(111)
f.truncate()
s = fatfs.stat(f"/{self._filename()}")
self.assertEqual(s, (111, "----a", self._filename()))
def test_open_a(self):
with fatfs.open(f"/{self._filename()}", "w") as f:
f.write(bytearray(b"test" * 200))
with fatfs.open(f"{self._filename()}", "a") as f:
f.seek(800)
f.write(bytearray(b"TEST" * 200))
with fatfs.open(f"/{self._filename()}", "r") as f:
b = bytearray(2000)
r = f.read(b)
self.assertEqual(r, 1600)
self.assertEqual(bytes(b[:1600]), b"test" * 200 + b"TEST" * 200)
def test_listdir(self):
fatfs.mkdir(f"/{self._dirname()}")
with fatfs.open(f"{self._filename()}", "w") as f:
f.write(bytearray(b"test"))
with fatfs.open(f"/{self._dirname()}/{self._filename('2')}", "w") as f:
f.write(bytearray(b"testtest"))
l = [e for e in fatfs.listdir("/")]
self.assertEqual(
l, [(0, "---d-", self._dirname()), (4, "----a", self._filename())]
)
l = [e for e in fatfs.listdir(f"/{self._dirname()}")]
self.assertEqual(l, [(8, "----a", self._filename("2"))])
def test_seek(self):
with fatfs.open(f"/{self._filename()}", "w+") as f:
f.write(bytearray(b"test" * 10))
f.seek(2)
b = bytearray(8)
r = f.read(b)
self.assertEqual(r, 8)
self.assertEqual(bytes(b[:8]), b"sttestte")
def test_unlink(self):
fatfs.mkdir(f"/{self._dirname()}")
with fatfs.open(f"/{self._filename()}", "w") as f:
f.write(bytearray(b"test"))
s = fatfs.stat(f"/{self._dirname()}")
self.assertEqual(s, (0, "---d-", self._dirname()))
s = fatfs.stat(f"/{self._filename()}")
self.assertEqual(s, (4, "----a", self._filename()))
fatfs.unlink(f"/{self._dirname()}")
fatfs.unlink(f"/{self._filename()}")
with self.assertRaises(fatfs.FatFSError):
fatfs.stat(f"/{self._dirname()}")
with self.assertRaises(fatfs.FatFSError):
self.assertRaises(fatfs.stat(f"/{self._filename()}"))
def test_unlink(self):
fatfs.mkdir("/%s" % self._dirname())
with fatfs.open("/%s" % self._filename(), "w") as f:
f.write(bytearray(b"test"))
s = fatfs.stat("/%s" % self._dirname())
self.assertEqual(s, (0, "---d-", self._dirname()))
s = fatfs.stat("/%s" % self._filename())
self.assertEqual(s, (4, "----a", self._filename()))
fatfs.unlink("/%s" % self._dirname())
fatfs.unlink("/%s" % self._filename())
with self.assertRaises(OSError):
fatfs.stat("/%s" % self._dirname())
with self.assertRaises(OSError):
self.assertRaises(fatfs.stat("/%s" % self._filename()))
