def test_disconnect(self):
"""disconnect breaks all connections and allows parts to be reused"""
aseqfunc1 = ComposableSeq(input_types="sequences",
output_types="sequences")
aseqfunc2 = ComposableSeq(input_types="sequences",
output_types="sequences")
aseqfunc3 = ComposableSeq(input_types="sequences",
output_types="sequences")
comb = aseqfunc1 + aseqfunc2 + aseqfunc3
comb.disconnect()
self.assertEqual(aseqfunc1.input, None)
self.assertEqual(aseqfunc1.output, None)
self.assertEqual(aseqfunc3.input, None)
self.assertEqual(aseqfunc3.output, None)
# should be able to compose a new one now
comb2 = aseqfunc1 + aseqfunc3
def test_composables_once(self):
"""composables can only be used in a single composition"""
aseqfunc1 = ComposableSeq(input_types="sequences",
output_types="sequences")
aseqfunc2 = ComposableSeq(input_types="sequences",
output_types="sequences")
comb = aseqfunc1 + aseqfunc2
with self.assertRaises(AssertionError):
aseqfunc3 = ComposableSeq(input_types="sequences",
output_types="sequences")
comb2 = aseqfunc1 + aseqfunc3
# the other order
with self.assertRaises(AssertionError):
aseqfunc3 = ComposableSeq(input_types="sequences",
output_types="sequences")
comb2 = aseqfunc3 + aseqfunc2
def test_composable_to_self(self):
"""this should raise a ValueError"""
app1 = ComposableSeq(input_types="sequences", output_types="sequences")
with self.assertRaises(ValueError):
_ = app1 + app1