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test: 类正则对象 replace 期望改抛 TypeError 对齐 IsRegExp 传播

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彭俊皓
2026-09-22 03:05:35 +00:00
parent f632119cab
commit a74044a26e
1 changed files with 7 additions and 21 deletions
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crates/oxide_vm/tests/builtins_string_tests.rs
+7 -21
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@@ -552,32 +552,18 @@ fn string_replace_regex_proto_subclass_fallback() {
#[test]
fn string_replace_regex_proto_subclass_custom_tostring() {
// 判别性回归：自定义 toString 命中源串的类正则对象，replace/replaceAll
// 均按 ToString 文本替换（不返回原串、不抛 TypeError），两入口对称。
// 的 IsRegExp 判定经 GetMethod(@@match) 调默认 @@match——非 RegExp receiver
// 抛 TypeError 原样传播，不降级为 ToString 文本替换，两入口对称（node 同形）。
let mut vm = Vm::new();
let s = eval(
&mut vm,
for src in [
"var sp = Object.create(RegExp.prototype); sp.toString = function(){ return 'X' }; 'aXb'.replace(sp, 'Y')",
)
.unwrap();
assert_eq!(to_str(&vm, s), "aYb");
let s = eval(
&mut vm,
"var sp = Object.create(RegExp.prototype); sp.toString = function(){ return 'X' }; 'aXb'.replaceAll(sp, 'Y')",
)
.unwrap();
assert_eq!(to_str(&vm, s), "aYb");
let s = eval(
&mut vm,
"var sp = Object.create(RegExp.prototype); sp.toString = function(){ return 'X' }; 'aXb'.replace(sp, function(){ return 'Z' })",
)
.unwrap();
assert_eq!(to_str(&vm, s), "aZb");
let s = eval(
&mut vm,
"var sp = Object.create(RegExp.prototype); sp.toString = function(){ return 'X' }; 'aXb'.replaceAll(sp, function(){ return 'Z' })",
)
.unwrap();
assert_eq!(to_str(&vm, s), "aZb");
] {
let err = eval(&mut vm, src).unwrap_err();
assert!(err.contains("TypeError"), "{src} 应抛 TypeError，实际: {err}");
}
}
#[test]