def test_basic_recordwriter_write(self):
test_string = "hello world"
with self.EphemeralFile('r+') as fp:
rw = RecordWriter(fp)
rw.write(test_string)
fp.seek(0)
rr = RecordReader(fp)
assert rr.read() == test_string
def test_recordwriter_initializing(self):
for mode in ('a', 'r+', 'w'):
with self.EphemeralFile(mode) as fp:
try:
RecordWriter(fp)
except Exception as e:
assert False, (
"Failed to initialize RecordWriter in '%s' mode (exception: %s)" % (mode, e))
def test_recordwriter_framing(self):
test_string_1 = "hello world"
test_string_2 = "ahoy ahoy, bonjour"
with self.EphemeralFile('w') as fp:
fn = fp.name
rw = RecordWriter(fp)
rw.write(test_string_1)
rw.close()
with open(fn, 'a') as fpa:
rw = RecordWriter(fpa)
rw.write(test_string_2)
with open(fn) as fpr:
rr = RecordReader(fpr)
assert rr.read() == test_string_1
assert rr.read() == test_string_2
def test_basic_recordwriter_write():
test_string = "hello world"
with EphemeralFile('w') as fp:
fn = fp.name
rw = RecordWriter(fp)
rw.write(test_string)
rw.close()
with open(fn) as fpr:
rr = RecordReader(fpr)
assert rr.read() == test_string
def test_basic_recordwriter_write_synced_raises(self):
test_string = "hello world"
self.mox.StubOutWithMock(os, 'fsync')
with RecordioTestBase.EphemeralFile('r+') as fp:
os.fsync(fp.fileno()).AndRaise(OSError)
self.mox.ReplayAll()
rw = RecordWriter(FileLike(fp))
rw.set_sync(True)
rw.write(test_string)
fp.seek(0)
rr = RecordReader(fp)
assert rr.read() == test_string
def test_basic_recordreader_read(self):
test_string = "hello world"
with self.EphemeralFile('r') as fp:
fn = fp.name
rr = RecordReader(fp)
assert rr.read() is None
rr.close()
with open(fn, 'w') as fpw:
rw = RecordWriter(fpw)
rw.write(test_string)
with open(fn) as fpr:
rr = RecordReader(fpr)
assert rr.read() == test_string
def test_recordwriter_raises_on_readonly_file(self):
with self.EphemeralFile('r') as fp:
with pytest.raises(RecordIO.InvalidFileHandle):
RecordWriter(fp)
def test_raises_if_initialized_with_nil_filehandle(self):
with pytest.raises(RecordIO.InvalidFileHandle):
RecordWriter(None)
with pytest.raises(RecordIO.InvalidFileHandle):
RecordReader(None)
def test_recordwriter_works_with_write():
with EphemeralFile('w') as fp:
try:
RecordWriter(fp)
except:
assert False, 'Failed to initialize RecordWriter in r+ mode'
def test_raises_on_nonfile():
with pytest.raises(RecordIO.InvalidFileHandle):
RecordWriter('/tmp/poop')
with pytest.raises(RecordIO.InvalidFileHandle):
RecordReader('/tmp/poop')
