File size: 8,811 Bytes
9b5db35 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 |
from typing import Tuple
import ast
class AssertNormalizerPython:
def normalize_assert(self, stmt: str, mask_str: bool = False) -> str:
try:
tree = ast.parse(stmt)
except SyntaxError:
return stmt
if not tree.body or not isinstance(tree.body[0], (ast.Assert, ast.Expr)):
return stmt
node = tree.body[0]
cps = []
# assert ... ===
if isinstance(node, ast.Assert):
if isinstance(node.test, ast.Compare):
left = self._expr_to_str(node.test.left, mask_str)
comps = [self._expr_to_str(comp, mask_str) for comp in node.test.comparators]
ops = node.test.ops
length = min(len(comps), len(ops))
for i in range(length):
cps.append({'left': left, 'op': ops[i], 'right': comps[i]})
left = comps[i]
elif type(node.test) == ast.UnaryOp:
if type(node.test.op) == ast.Not:
test_str = self._expr_to_str(node.test.operand, mask_str)
cps.append({'left': test_str, 'op': ast.Not(), 'right': ''})
else:
test_str = self._expr_to_str(node.test, mask_str)
cps.append({'left': test_str, 'op': '', 'right': ''})
elif type(node.test) == ast.BoolOp:
left = self._expr_to_str(node.test.values[0], mask_str)
right = self._expr_to_str(node.test.values[1], mask_str)
cps.append({'left': left, 'op': node.test.op, 'right': right})
else:
test_str = self._expr_to_str(node.test, mask_str)
cps.append({'left': test_str, 'op': '', 'right': ''})
# unittest
if isinstance(node, ast.Expr) and isinstance(node.value, ast.Call):
call = node.value
method = self._get_method_name(call.func)
if not method:
return stmt
args = [self._expr_to_str(a, mask_str) for a in call.args]
# === assertTrue / assertFalse / assertIsNone / assertIsNotNone ===
if method in ["assertTrue", "assertFalse", "assertIsNone", "assertIsNotNone"]:
target = args[-1] if len(args) > 0 else "?"
if method == "assertTrue":
cps.append({'left': target, 'op': ast.Is(), 'right': 'True'})
elif method == "assertFalse":
cps.append({'left': target, 'op': ast.IsNot(), 'right': 'True'})
elif method == "assertIsNone":
cps.append({'left': target, 'op': ast.Is(), 'right': 'None'})
elif method == "assertIsNotNone":
cps.append({'left': target, 'op': ast.IsNot(), 'right': 'None'})
# === assertEqual / assertNotEqual ===
elif method == 'assertEqual':
cps.append({'left': args[0], 'op': ast.Eq(), 'right': args[1]})
elif method == 'assertNotEqual':
cps.append({'left': args[0], 'op': ast.NotEq(), 'right': args[1]})
# === assertIs / assertIsNot ===
elif method == 'assertIs':
cps.append({'left': args[0], 'op': ast.Is(), 'right': args[1]})
elif method == 'assertIsNot':
cps.append({'left': args[0], 'op': ast.IsNot(), 'right': args[1]})
# === assertIn / assertNotIn ===
elif method == 'assertIn':
cps.append({'left': args[0], 'op': ast.In(), 'right': args[1]})
elif method == 'assertNotIn':
cps.append({'left': args[0], 'op': ast.In(), 'right': args[1]})
# === assertAlmostEqual ===
elif method == 'assertAlmostEqual':
cps.append({'left': args[0], 'op': ast.Eq(), 'right': args[1]})
# Final result
str_cps = []
for cp in cps:
left, op, right = cp['left'], cp['op'], cp['right']
if left == 'False':
left = 'True'
op = self._not_op(op)
if right == 'False':
right = 'True'
op = self._not_op(op)
if left > right:
rv, rvop = self._reverse_op(op)
if rv:
str_cps.append(f'{right} {rvop} {left}')
else:
str_cps.append(f"{left} {self._op_to_str(op)} {right}")
else:
str_cps.append(f"{left} {self._op_to_str(op)} {right}")
str_cps = sorted(str_cps)
return ' && '.join(str_cps)
def _get_method_name(self, func):
if isinstance(func, ast.Attribute):
return func.attr
elif isinstance(func, ast.Name):
return func.id
else:
return None
def _expr_to_str(self, expr, mask_str: bool):
if isinstance(expr, ast.Constant):
if isinstance(expr.value, str):
return '"STR"' if mask_str else repr(expr.value)
return repr(expr.value)
elif isinstance(expr, ast.Name):
return expr.id
elif isinstance(expr, ast.Attribute):
return f"{self._expr_to_str(expr.value, mask_str)}.{expr.attr}"
elif isinstance(expr, ast.Call):
func_str = self._expr_to_str(expr.func, mask_str)
args_str = ",".join(self._expr_to_str(a, mask_str) for a in expr.args)
return f"{func_str}({args_str})"
elif isinstance(expr, ast.Compare):
left = self._expr_to_str(expr.left, mask_str)
ops = " ".join(self._op_to_str(op) for op in expr.ops)
rights = " ".join(self._expr_to_str(c, mask_str) for c in expr.comparators)
return f"{left} {ops} {rights}"
elif isinstance(expr, ast.BinOp):
left = self._expr_to_str(expr.left, mask_str)
right = self._expr_to_str(expr.right, mask_str)
op = self._op_to_str(expr.op)
return f"{left} {op} {right}"
elif isinstance(expr, ast.UnaryOp):
op = self._op_to_str(expr.op)
operand = self._expr_to_str(expr.operand, mask_str)
return f"{op}{operand}"
else:
return ast.unparse(expr) if hasattr(ast, "unparse") else str(expr)
def _op_to_str(self, op):
return {
ast.Add: "+", ast.Sub: "-", ast.Mult: "*", ast.Div: "/", ast.Mod: "%",
ast.Eq: "==", ast.NotEq: "!=", ast.Gt: ">", ast.GtE: ">=", ast.Lt: "<", ast.LtE: "<=",
ast.Is: "is", ast.IsNot: "is not", ast.In: "in", ast.NotIn: "not in",
ast.And: "and", ast.Or: "or", ast.Not: "not ", ast.USub: "-", ast.UAdd: "+",
}.get(type(op), str(op))
def _not_op(self, op):
if type(op) is ast.NotEq:
return ast.Eq()
elif type(op) is ast.Eq:
return ast.NotEq()
elif type(op) is ast.Is:
return ast.IsNot()
elif type(op) is ast.IsNot:
return ast.Is()
else:
return op
def _reverse_op(self, op) -> Tuple:
if type(op) in {ast.Eq, ast.NotEq, ast.Gt, ast.GtE, ast.Lt, ast.LtE, ast.Is, ast.IsNot, ast.And, ast.Or}:
return True, {
ast.Eq: "==", ast.NotEq: "!=", ast.Gt: "<", ast.GtE: "<=", ast.Lt: ">", ast.LtE: ">=",
ast.Is: "is", ast.IsNot: "is not",
ast.And: "and", ast.Or: "or"
}.get(type(op), "?")
return False, self._op_to_str(op)
def _normalize_symmetric(self, a, b, op):
terms = sorted([a.strip(), b.strip()])
return f"{terms[0]} {op} {terms[1]}"
def _is_logical_expr(self, expr):
return isinstance(expr, (ast.Compare, ast.BoolOp, ast.UnaryOp, ast.BinOp, ast.Call))
def is_python_assert_same(assert_stmt1: str, assert_stmt2: str, mask_str: bool = False) -> bool:
try:
norm_a = AssertNormalizerPython().normalize_assert(assert_stmt1, mask_str)
norm_b = AssertNormalizerPython().normalize_assert(assert_stmt2, mask_str)
except Exception:
return False
return norm_a == norm_b
if __name__ == '__main__':
# Same
assert is_python_assert_same("assert a == b", "assert b == a # Comment")
assert is_python_assert_same("assert True is x", "assert x is True")
assert is_python_assert_same("self.assertEquals(a, b)", "self.assertEquals(b, a)")
assert is_python_assert_same("self.assertTrue(x)", "assert x is True")
assert is_python_assert_same("self.assertFalse(x)", "assert x is False")
assert is_python_assert_same("assert a > 0", "assert 0 < a")
# Not Same
assert not is_python_assert_same("assert a > 0", "assert a == 0")
assert not is_python_assert_same("assert a == b", "assert a is b")
|