def test_custom_hash_preimage_parsing_error_missing_comma():
output = DummyOutput()
n_collisions = 10
preimage = 'x = 5 y = 10, z = 30'
custom_hash.options['n_collisions'] = n_collisions
custom_hash.options['variable_width'] = 32
custom_hash.options['target_type'] = 'preimage'
custom_hash.options['preimage'] = preimage
custom_hash.options['hash'] = '+ * x y z'
with pytest.raises(ValueError):
custom_hash.run(output)
def test_custom_hash_malformed_hash():
output = DummyOutput()
n_collisions = 10
image = 0
custom_hash.options['n_collisions'] = n_collisions
custom_hash.options['variable_width'] = 32
custom_hash.options['target_type'] = 'image'
custom_hash.options['image'] = image
custom_hash.options['hash'] = '+ * x y z q'
with pytest.raises(AssertionError):
custom_hash.run(output)
def test_custom_hash_unknown_variable():
output = DummyOutput()
n_collisions = 10
preimage = 'x = 5, y = 10, z = 30'
custom_hash.options['n_collisions'] = n_collisions
custom_hash.options['variable_width'] = 32
custom_hash.options['target_type'] = 'preimage'
custom_hash.options['preimage'] = preimage
custom_hash.options['hash'] = '+ * x y q'
with pytest.raises(ValueError):
custom_hash.run(output)
def test_custom_hash():
output = DummyOutput()
n_collisions = 10
image = 0
custom_hash.options['n_collisions'] = n_collisions
custom_hash.options['variable_width'] = 32
custom_hash.options['target_type'] = 'image'
custom_hash.options['image'] = image
custom_hash.options['hash'] = '+ * x y z'
custom_hash.run(output)
assert len(output) == n_collisions
for i in output:
assert hash_function(int(i[i[2]].as_long()),
int(i[i[1]].as_long()),
int(i[i[0]].as_long())) == image