mirror of
https://github.com/pjh456/OxideJS.git
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88 lines
3.6 KiB
Rust
88 lines
3.6 KiB
Rust
//! test262 宿主对象 `$262` 的最小绑定验证：对象存在、`global` 指向当前 realm
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//! 全局、evalScript 可执行、未实现方法抛能力缺失错误。
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use std::sync::Arc;
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use oxide_compiler::compiler::Compiler;
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use oxide_parser::Allocator;
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use oxide_vm::vm::Vm;
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/// 单测辅助：源串 → 结果串（字符串值解包实际内容，运行错误以 `vm error: ...` 呈现）。
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fn eval(source: &str) -> String {
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let allocator = Allocator::default();
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let program = match oxide_parser::parse(&allocator, source) {
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Ok(p) => p,
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Err(e) => return format!("parse error: {}", e[0].message),
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};
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let module = match Compiler::new().compile(&program) {
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Ok(m) => m,
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Err(e) => return format!("compile error: {e}"),
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};
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let mut vm = Vm::new();
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match vm.run(&Arc::new(module)) {
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Ok(result) => vm.lookup_str(result).unwrap_or_else(|| format!("{result}")),
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Err(e) => format!("vm error: {e}"),
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}
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}
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/// `$262` 作为编译期已知全局绑定：typeof 为 object，`global` 即 globalThis。
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#[test]
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fn host_object_exists_and_exposes_global() {
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assert_eq!(eval("typeof $262"), "object");
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assert_eq!(eval("$262.global === globalThis"), "true");
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}
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/// `$262` 方法面：evalScript/gc 为可调用函数。
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#[test]
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fn host_methods_are_callable() {
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assert_eq!(eval("typeof $262.evalScript"), "function");
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assert_eq!(eval("typeof $262.gc"), "function");
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assert_eq!(eval("typeof $262.detachArrayBuffer"), "function");
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assert_eq!(eval("typeof $262.createRealm"), "function");
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}
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/// evalScript 以普通脚本执行并返回完成值：末条语句的正常完成值；顶层
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/// `return` 在 Script goal 下是编译期 SyntaxError。
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#[test]
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fn eval_script_runs_code_and_returns_value() {
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// 普通脚本语义：顶层语句的正常完成值即脚本完成值（var 声明语句本身完成值为
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// undefined，末条表达式语句 `y` 完成值为 1）。
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assert_eq!(eval("$262.evalScript('var y = 1; y')"), "1");
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// Script goal 顶层 return 非法：编译期错误转 JS 层可捕获的 SyntaxError。
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let r = eval("try { $262.evalScript('return 40 + 2'); 'no-throw' } catch (e) { e.name }");
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assert_eq!(r, "SyntaxError");
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}
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/// evalScript 编译失败转 SyntaxError（可由 JS catch 捕获）。
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#[test]
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fn eval_script_syntax_error_is_catchable() {
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let r = eval("try { $262.evalScript('if (') ; 'no-throw' } catch (e) { e.name }");
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assert_eq!(r, "SyntaxError");
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}
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/// 未实现方法抛能力缺失错误（消息带 `not supported`），不抛 ReferenceError。
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#[test]
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fn unsupported_methods_throw_not_supported() {
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let r = eval("try { $262.createRealm(); 'no-throw' } catch (e) { e.name + ':' + e.message }");
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assert!(r.contains("TypeError"), "期望 TypeError，实际 {r}");
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assert!(r.contains("not supported"), "期望能力缺失消息，实际 {r}");
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let r = eval("try { $262.agent(); 'no-throw' } catch (e) { e.name + ':' + e.message }");
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assert!(r.contains("TypeError"), "期望 TypeError，实际 {r}");
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}
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/// `detachArrayBuffer` 真实现钉：detach 后 `detached` 访问器读 true、
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/// 非 ArrayBuffer 实参抛 TypeError。
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#[test]
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fn detach_array_buffer_detaches() {
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assert_eq!(eval("var ab = new ArrayBuffer(8); $262.detachArrayBuffer(ab); ab.detached"), "true");
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let r = eval("try { $262.detachArrayBuffer(1); 'no-throw' } catch (e) { e.name }");
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assert_eq!(r, "TypeError");
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}
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/// `$262.gc()` 触发一次 session 回收且不抛错。
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#[test]
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fn gc_runs_without_error() {
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assert_eq!(eval("$262.gc(); 'ok'"), "ok");
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}
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