def test_str_coverage():
"""Just a coverage test for __str__ and __repr__
Doesn't check that they take particular values since that could change
easily.
"""
g = Graph()
p = Parameter(g)
p.name = 'param'
objects = [g, Apply([], g), p, Parameter(g), Constant(0), Constant(g)]
for o in objects:
str(o)
repr(o)
o.debug.debug_name
def test_graph():
"""Construct a small graph.
Note that this graph is strictly speaking nonsensical, because it doesn't
use any actual primitive operations.
"""
g = Graph()
x = Parameter(g)
assert x.value is PARAMETER
one = Constant(1)
add = Constant('add')
return_ = Constant('return')
value = Apply([add, x, one], g)
return_ = Apply([return_, value], g)
g.return_ = return_
g.parameters.append(x)
def test_graph_output():
g = Graph()
with pytest.raises(Exception):
print(g.output)
one = Constant(1)
g.output = one
assert g.output is one
assert (isinstance(g.return_, Apply) and len(g.return_.inputs) == 2
and isinstance(g.return_.inputs[0], Constant)
and g.return_.inputs[0].value is primops.return_
and g.return_.inputs[1] is one)
old_return = g.return_
two = Constant(2)
g.output = two
assert g.return_ is old_return
assert g.return_.inputs[1] is two
def test_graph():
"""Construct a small graph.
Note that this graph is strictly speaking nonsensical, because it doesn't
use any actual primitive operations.
"""
g = Graph()
x = Parameter(g)
assert x.value is PARAMETER
one = Constant(1)
add = Constant("add")
return_ = Constant("return")
value = Apply([add, x, one], g)
return_ = Apply([return_, value], g)
g.return_ = return_
g.parameters.append(x)
assert g.abstract is None
g.parameters[0].abstract = 123
assert g.abstract is None
g.parameters[0].abstract = None
g.return_.abstract = 456
assert g.abstract is None
g.parameters[0].abstract = 123
assert g.abstract == AbstractFunctionUnique([123], 456)
def test_incoming():
in0 = Constant(0)
value = Apply([in0], Graph())
assert list(value.incoming) == [in0]
assert list(in0.incoming) == []