def testInvalidParam(self):
# startTime later than endTime:
startTimes = [35, 11]
endTimes = [30, 60]
self.assertConfigureFails(Slicer(), {
'startTimes': startTimes,
'endTimes': endTimes
})
self.assertConfigureFails(Slicer(), {'timeUnits': 'unknown'})
def slice(self, startTimes, endTimes):
nSlices = len(startTimes)
if nSlices != len(endTimes):
print("Test cannot be computed")
exit(1)
input = range(max(endTimes))
# expected values:
expected = []
orderedTimes = []
for i in range(nSlices):
time = (startTimes[i], endTimes[i])
orderedTimes.append(time)
orderedTimes = sorted(orderedTimes, lambda x, y: x[0] - y[0])
for i in range(nSlices):
expected.append(input[orderedTimes[i][0]:orderedTimes[i][1]])
gen = VectorInput(input)
slicer = Slicer(startTimes=startTimes,
endTimes=endTimes,
timeUnits="samples")
pool = Pool()
gen.data >> slicer.audio
slicer.frame >> (pool, "data")
run(gen)
result = pool['data']
self.assertEqual(len(result), len(expected))
for i in range(nSlices):
self.assertEqualVector(result[i], expected[i])
def Overflow(self):
self.assertConfigureFails(
Slicer(), {
'sampleRate': 44100,
'startTimes': [2147483649.0],
'endTimes': [2147483649.5],
'timeUnits': 'seconds'
})
def testOneSample(self):
startTimes = [0]
endTimes = [1.0 / 44100.0]
gen = VectorInput([1])
slicer = Slicer(startTimes=startTimes,
endTimes=endTimes,
timeUnits="seconds")
pool = Pool()
gen.data >> slicer.audio
slicer.frame >> (pool, "data")
run(gen)
self.assertEqualVector(pool['data'], [1])
def testEmpty(self):
startTimes = [0, 11]
endTimes = [30, 60]
gen = VectorInput([])
slicer = Slicer(startTimes=startTimes,
endTimes=endTimes,
timeUnits="samples")
pool = Pool()
gen.data >> slicer.audio
slicer.frame >> (pool, "data")
run(gen)
self.assertEqualVector(pool.descriptorNames(), [])
def testEndTimePastEof(self):
# no slices if times are beyond the input length:
startTimes = [0]
endTimes = [100]
gen = VectorInput([1])
slicer = Slicer(startTimes=startTimes,
endTimes=endTimes,
timeUnits="seconds")
pool = Pool()
gen.data >> slicer.audio
slicer.frame >> (pool, "data")
run(gen)
self.assertEqualVector(pool.descriptorNames(), [])
def testVeryLargeStartAndEndTimes(self):
# no slices if times are beyond the input length:
startTimes = [100]
endTimes = [101]
gen = VectorInput([1] * 50)
slicer = Slicer(startTimes=startTimes,
endTimes=endTimes,
timeUnits="samples")
pool = Pool()
gen.data >> slicer.audio
slicer.frame >> (pool, "data")
run(gen)
self.assertEqual(pool.descriptorNames(), [])
