def test_truncate_adds(self):
u = uuid.uuid1()
d = reporting.DataBuffer(self.TEST_DIR)
for i in xrange(0, 20):
d.add('/test', {
'uuid': u,
'Readings': [{
'ReadingTime': i,
'Reading': i
}]
})
rv = d.read()
self.assertEqual(len(rv['/test']['Readings']), 10)
self.assertEqual(rv['/test']['Readings'][0]['Reading'], 0)
for i in xrange(20, 30):
d.add('/test', {
'uuid': u,
'Readings': [{
'ReadingTime': i,
'Reading': i
}]
})
rv = d.read() # should be the next 10 since we overwrite
self.assertEqual(len(rv['/test']['Readings']), 10)
self.assertEqual(rv['/test']['Readings'][0]['Reading'], 10)
d.truncate(
tspec
) # this doesn't do anything b/c we overwrote it in the circular buffer
rv, tspec = d.read() # should be the next 10
self.assertEqual(len(rv['/test']['Readings']), 10)
self.assertEqual(rv['/test']['Readings'][0]['Reading'], 10)
d.truncate(tspec)
rv, tspec = d.read() # read past the end
self.assertEqual(len(rv['/test']['Readings']), 10)
self.assertEqual(rv['/test']['Readings'][0]['Reading'], 20)
d.truncate(tspec)
rv, tspec = d.read() # read past the end
self.assertEqual(len(rv), 0)
del d
def test_truncate(self):
u = uuid.uuid1()
d = reporting.DataBuffer(self.TEST_DIR)
for i in xrange(0, 20):
d.add('/test', {
'uuid': u,
'Readings': [{
'ReadingTime': i,
'Reading': i
}]
})
rv = d.read()
print len(d)
self.assertEqual(len(rv['/test']['Readings']), 20)
d.truncate(tspec)
self.assertEqual(len(d), 19)
del d
def test_maxsize(self):
u = uuid.uuid1()
d = reporting.DataBuffer(10)
for i in xrange(0, 20):
d.add('/test', {
'uuid': u,
'Readings': [{
'ReadingTime': i,
'Reading': i
}]
})
rv = d.read()
self.assertEqual(len(rv['/test']['Readings']), 10)
rv = d.read()
self.assertEqual(len(rv['/test']['Readings']), 10)
for i in xrange(10, 20):
self.assertEqual(rv['/test']['Readings'][i - 10]['ReadingTime'], i)
self.assertEqual(rv['/test']['Readings'][i - 10]['Reading'], i)
del d
def test_partialread(self):
u = uuid.uuid1()
d = reporting.DataBuffer(self.TEST_DIR)
for i in xrange(0, 20):
d.add('/test', {
'uuid': u,
'Readings': [{
'ReadingTime': i,
'Reading': i
}]
})
# make sure we don't mutate the object while doing this...
rv = d.read()
self.assertEqual(len(rv['/test']['Readings']), 20)
rv = d.read()
self.assertEqual(len(rv['/test']['Readings']), 20)
del d
def test_metadata_split(self):
u = uuid.uuid1()
d = reporting.DataBuffer(self.TEST_DIR)
for i in xrange(0, 20):
d.add('/test', {
'uuid': u,
'Readings': [{
'ReadingTime': i,
'Reading': i
}]
})
d.add('/test', {'uuid': u, 'Metadata': {'Extra': {'foo': 'bar'}}})
rv = d.read()
d.truncate()
for i in xrange(0, 20):
d.add('/test', {
'uuid': u,
'Readings': [{
'ReadingTime': i,
'Reading': i
}]
})
rv = d.read()
def test_onestream(self):
u = uuid.uuid1()
d = reporting.DataBuffer(self.TEST_DIR)
for i in xrange(0, 20):
d.add('/test', {
'uuid': u,
'Readings': [{
'ReadingTime': i,
'Reading': i
}]
})
rv = d.read()
self.assertEqual(len(rv), 1)
self.assertTrue('/test' in rv)
val = rv['/test']
self.assertTrue('uuid' in val)
self.assertTrue('Readings' in val)
self.assertTrue(val['uuid'] == u)
self.assertEqual(len(val['Readings']), 20)
for i in xrange(0, 20):
self.assertEqual(val['Readings'][i]['ReadingTime'], i)
self.assertEqual(val['Readings'][i]['Reading'], i)
del d