def test_equality_rewrite_diff_static(self):
"Test an equality rewrite with different static values"
l = ast.Literal('foo')
s = ast.Literal('"test"')
s.static = True
s.static_val = "test"
s1 = ast.Literal('"other"')
s1.static = True
s1.static_val = "other"
cmp1 = ast.CompareOperator('=', l, s)
cmp2 = ast.CompareOperator('=', l, s1)
or1 = ast.LogicalOperator('or', cmp1, cmp2)
# Rewrite foo = "test" as True
# Left should be True, right should be False
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
# Rewrite foo = "test" as False
# Left should be False, right should be same
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, False)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert ASTPattern(cmp2).matches(r.right)
# Rewrite foo = "other" as True
# Left should be False, right should be True
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert isinstance(r.right, ast.Constant)
assert r.right.value == True
# Rewrite foo = "other" as False
# Left should be same, right should be False
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, False)
assert ASTPattern(cmp1).matches(r.left)
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
def test_equality_rewrite_diff_static(self):
"Test an equality rewrite with different static values"
l = ast.Literal('foo')
s = ast.Literal('"test"')
s.static = True
s.static_val = "test"
s1 = ast.Literal('"other"')
s1.static = True
s1.static_val = "other"
cmp1 = ast.CompareOperator('=', l, s)
cmp2 = ast.CompareOperator('=', l, s1)
or1 = ast.LogicalOperator('or', cmp1, cmp2)
# Rewrite foo = "test" as True
# Left should be True, right should be False
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
# Rewrite foo = "test" as False
# Left should be False, right should be same
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, False)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert ASTPattern(cmp2).matches(r.right)
# Rewrite foo = "other" as True
# Left should be False, right should be True
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert isinstance(r.right, ast.Constant)
assert r.right.value == True
# Rewrite foo = "other" as False
# Left should be same, right should be False
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, False)
assert ASTPattern(cmp1).matches(r.left)
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
def test_equality_rewrite_static(self):
"Test an equality rewrite with static values"
l = ast.Literal('foo')
s = ast.Literal('"test"')
s.static = True
s.static_val = "test"
cmp1 = ast.CompareOperator('=', l, s)
cmp2 = ast.CompareOperator('!=', l, s)
or1 = ast.LogicalOperator('or', cmp1, cmp2)
# Rewrite foo = "test" as True
# Left should be True, right should be False
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
# Rewrite foo = "test" as False
# Left should be False, right should be True
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, False)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert isinstance(r.right, ast.Constant)
assert r.right.value == True
# Rewrite foo != "test" as True
# Left should be False, right should be True
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert isinstance(r.right, ast.Constant)
assert r.right.value == True
# Rewrite foo != "test" as False
# Left should be False, right should be True
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, False)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
def test_equality_rewrite_static(self):
"Test an equality rewrite with static values"
l = ast.Literal('foo')
s = ast.Literal('"test"')
s.static = True
s.static_val = "test"
cmp1 = ast.CompareOperator('=', l, s)
cmp2 = ast.CompareOperator('!=', l, s)
or1 = ast.LogicalOperator('or', cmp1, cmp2)
# Rewrite foo = "test" as True
# Left should be True, right should be False
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
# Rewrite foo = "test" as False
# Left should be False, right should be True
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, False)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert isinstance(r.right, ast.Constant)
assert r.right.value == True
# Rewrite foo != "test" as True
# Left should be False, right should be True
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert isinstance(r.right, ast.Constant)
assert r.right.value == True
# Rewrite foo != "test" as False
# Left should be False, right should be True
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, False)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
def test_equality_rewrite_literals(self):
"Test an equality rewrite with different literals"
l = ast.Literal('foo')
v = ast.Literal('bar')
v2 = ast.Literal('baz')
cmp1 = ast.CompareOperator('=', l, v)
cmp2 = ast.CompareOperator('=', l, v2)
or1 = ast.LogicalOperator('or', cmp1, cmp2)
# Rewrite foo = bar as True
# Left should be True, right should be unchanged
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert ASTPattern(cmp2).matches(r.right)
# Rewrite foo = bar as False
# Left should be False, right should be same
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, False)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert ASTPattern(cmp2).matches(r.right)
# Rewrite foo = baz as True
# Left should be same, right should be True
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, True)
assert ASTPattern(cmp1).matches(r.left)
assert isinstance(r.right, ast.Constant)
assert r.right.value == True
# Rewrite foo = baz as False
# Left should be same, right should be False
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, False)
assert ASTPattern(cmp1).matches(r.left)
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
def test_equality_rewrite_literals(self):
"Test an equality rewrite with different literals"
l = ast.Literal('foo')
v = ast.Literal('bar')
v2 = ast.Literal('baz')
cmp1 = ast.CompareOperator('=', l, v)
cmp2 = ast.CompareOperator('=', l, v2)
or1 = ast.LogicalOperator('or', cmp1, cmp2)
# Rewrite foo = bar as True
# Left should be True, right should be unchanged
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, True)
assert isinstance(r.left, ast.Constant)
assert r.left.value == True
assert ASTPattern(cmp2).matches(r.right)
# Rewrite foo = bar as False
# Left should be False, right should be same
name = merge.node_name(cmp1, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp1, False)
assert isinstance(r.left, ast.Constant)
assert r.left.value == False
assert ASTPattern(cmp2).matches(r.right)
# Rewrite foo = baz as True
# Left should be same, right should be True
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, True)
assert ASTPattern(cmp1).matches(r.left)
assert isinstance(r.right, ast.Constant)
assert r.right.value == True
# Rewrite foo = baz as False
# Left should be same, right should be False
name = merge.node_name(cmp2, True)
r = compare.equality_rewrite(ast.dup(or1), name, cmp2, False)
assert ASTPattern(cmp1).matches(r.left)
assert isinstance(r.right, ast.Constant)
assert r.right.value == False
