def test_duallinker_straightforward():
x, y, z = inputs()
e = add(mul(x, y), mul(y, z)) # add and mul are correct in C and in Python
lnk = DualLinker(checker=_my_checker).accept(FunctionGraph([x, y, z], [e]))
fn = lnk.make_function()
res = fn(7.2, 1.5, 3.0)
assert res == 15.3
def test_not(self):
x, y, z = ints("xyz")
fn = DualLinker().accept(FunctionGraph([x, y], [invert(x)])).make_function()
for a, b in ((0, 1), (0, 0), (1, 0), (1, 1)):
assert fn(a, b) == ~a, (a,)
x, y, z = ints("xyz")
fn = DualLinker().accept(FunctionGraph([x, y], [~x])).make_function()
for a, b in ((0, 1), (0, 0), (1, 0), (1, 1)):
assert fn(a, b) == ~a, (a,)
def test_and(self):
x, y, z = ints("xyz")
fn = DualLinker().accept(FunctionGraph([x, y], [and_(x, y)])).make_function()
for a, b in ((0, 1), (0, 0), (1, 0), (1, 1)):
assert fn(a, b) == (a & b), (a, b)
x, y, z = ints("xyz")
fn = DualLinker().accept(FunctionGraph([x, y], [x & y])).make_function()
for a, b in ((0, 1), (0, 0), (1, 0), (1, 1)):
assert fn(a, b) == (a & b), (a, b)
def test_straightforward(self):
x, y, z = floats("xyz")
e = mul(add(x, y), true_div(x, y))
C = Composite([x, y], [e])
c = C.make_node(x, y)
# print c.c_code(['x', 'y'], ['z'], dict(id = 0))
g = FunctionGraph([x, y], [c.out])
fn = DualLinker().accept(g).make_function()
assert fn(1.0, 2.0) == 1.5
def test_with_constants(self):
x, y, z = floats("xyz")
e = mul(add(70.0, y), true_div(x, y))
C = Composite([x, y], [e])
c = C.make_node(x, y)
assert "70.0" in c.op.c_code(c, "dummy", ["x", "y"], ["z"], dict(id=0))
# print c.c_code(['x', 'y'], ['z'], dict(id = 0))
g = FunctionGraph([x, y], [c.out])
fn = DualLinker().accept(g).make_function()
assert fn(1.0, 2.0) == 36.0
def test_many_outputs(self):
x, y, z = floats("xyz")
e0 = x + y + z
e1 = x + y * z
e2 = x / y
C = Composite([x, y, z], [e0, e1, e2])
c = C.make_node(x, y, z)
# print c.c_code(['x', 'y', 'z'], ['out0', 'out1', 'out2'], dict(id = 0))
g = FunctionGraph([x, y, z], c.outputs)
fn = DualLinker().accept(g).make_function()
assert fn(1.0, 2.0, 3.0) == [6.0, 7.0, 0.5]
def test_duallinker_mismatch():
x, y, z = inputs()
# bad_sub is correct in C but erroneous in Python
e = bad_sub(mul(x, y), mul(y, z))
g = FunctionGraph([x, y, z], [e])
lnk = DualLinker(checker=_my_checker).accept(g)
fn = lnk.make_function()
# good
assert CLinker().accept(g).make_function()(1.0, 2.0, 3.0) == -4.0
# good
assert OpWiseCLinker().accept(g).make_function()(1.0, 2.0, 3.0) == -4.0
# (purposely) wrong
assert PerformLinker().accept(g).make_function()(1.0, 2.0, 3.0) == -10.0
with pytest.raises(MyExc):
# this runs OpWiseCLinker and PerformLinker in parallel and feeds
# variables of matching operations to _my_checker to verify that they
# are the same.
fn(1.0, 2.0, 3.0)
def test_composite_printing(self):
x, y, z = floats("xyz")
e0 = x + y + z
e1 = x + y * z
e2 = x / y
e3 = x // 5
e4 = -x
e5 = x - y
e6 = x**y + (-z)
e7 = x % 3
C = Composite([x, y, z], [e0, e1, e2, e3, e4, e5, e6, e7])
c = C.make_node(x, y, z)
g = FunctionGraph([x, y, z], c.outputs)
DualLinker().accept(g).make_function()
assert str(g) == ("FunctionGraph(*1 -> Composite{((i0 + i1) + i2),"
" (i0 + (i1 * i2)), (i0 / i1), "
"(i0 // ScalarConstant{5}), "
"(-i0), (i0 - i1), ((i0 ** i1) + (-i2)),"
" (i0 % ScalarConstant{3})}(x, y, z), "
"*1::1, *1::2, *1::3, *1::4, *1::5, *1::6, *1::7)")
def test_mul_add_true():
x, y, z = floats("xyz")
e = mul(add(x, y), true_div(x, y))
g = FunctionGraph([x, y], [e])
fn = DualLinker().accept(g).make_function()
assert fn(1.0, 2.0) == 1.5
def test_xor(self):
x, y, z = ints("xyz")
fn = DualLinker().accept(FunctionGraph([x, y],
[x ^ y])).make_function()
for a, b in ((0, 1), (0, 0), (1, 0), (1, 1)):
assert fn(a, b) == (a ^ b), (a, b)
def test_neq(self):
x, y, z = floats("xyz")
fn = DualLinker().accept(FunctionGraph([x, y],
[neq(x, y)])).make_function()
for a, b in ((3.0, 9), (3, 0.9), (3, 3)):
assert fn(a, b) == (a != b)