def test_min_change(self):
t = ast.Constant(True)
f = ast.Constant(False)
left = ast.LogicalOperator('or', t, f)
right = ast.LogicalOperator('and', t, f)
r = ast.LogicalOperator('or', left, right)
# First pass will only replace the left and right
# with constants, but will not cause 3 changes.
r = optimizer.optimize(r, max_pass=10, min_change=3)
assert isinstance(r, ast.LogicalOperator)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
def test_min_change(self):
t = ast.Constant(True)
f = ast.Constant(False)
left = ast.LogicalOperator('or', t, f)
right = ast.LogicalOperator('and', t, f)
r = ast.LogicalOperator('or', left, right)
# First pass will only replace the left and right
# with constants, but will not cause 3 changes.
r = optimizer.optimize(r, max_pass=10, min_change=3)
assert isinstance(r, ast.LogicalOperator)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
def test_no_pass(self):
"Should do nothing"
assert None == optimizer.optimize(None, max_pass=0, min_change=1)
def test_no_pass(self):
"Should do nothing"
assert None == optimizer.optimize(None, max_pass=0, min_change=1)
