test(es/codegen): Add a JS test for ascii-only mode (#8519)

**Description:**

The issue was fixed by #8493, but it was not included in the latest release because of the wrong bump comment.

**Related issue:**

 - Closes #8491

crates/swc_ecma_codegen/src/tests.rs

@@ -945,6 +945,38 @@ fn emit_type_import_specifier() {
  assert_eq!(DebugUsingDisplay(out.trim()), DebugUsingDisplay(to.trim()),);
 }
 
+#[test]
+fn issue_8491_1() {
+ test_all(
+ "console.log({aób: 'ó'})",
+ r#"console.log({
+ "a\xf3b": "\xf3"
+});"#,
+ r#"console.log({"a\xf3b":"\xf3"})"#,
+ Config {
+ ascii_only: true,
+ target: EsVersion::Es5,
+ ..Default::default()
+ },
+ );
+}
+
+#[test]
+fn issue_8491_2() {
+ test_all(
+ "console.log({aób: 'ó'})",
+ r#"console.log({
+ "a\xf3b": "\xf3"
+});"#,
+ r#"console.log({"a\xf3b":"\xf3"})"#,
+ Config {
+ ascii_only: true,
+ target: EsVersion::Es2015,
+ ..Default::default()
+ },
+ );
+}
+
 #[testing::fixture("tests/str-lits/**/*.txt")]
 fn test_str_lit(input: PathBuf) {
  test_str_lit_inner(input)

node-swc/__tests__/transform/issue_8491_test.mjs

@@ -0,0 +1,36 @@
+import swc from "../../..";
+
+it("should transpile decorators", async () => {
+ const source = `const a = {aób: 'ó'}
+
+ console.log(a)`;
+
+ expect(
+ swc.transformSync(source, {
+ jsc: {
+ parser: {
+ syntax: "ecmascript",
+ jsx: false,
+ },
+ target: "es5",
+ loose: false,
+ minify: {
+ compress: true,
+ format: {
+ asciiOnly: true,
+ },
+ },
+ },
+ module: {
+ type: "es6",
+ },
+ minify: false,
+ isModule: true,
+ }).code
+ ).toMatchInlineSnapshot(`
+ "console.log({
+ "a\\xf3b": "\\xf3"
+ });
+ "
+ `);
+});