test: add a test case for unusual charsets

Author: legendecas

test/snapshots/transform.test.js.snapshot

@@ -34,6 +34,14 @@ exports[`should perform transformation with source maps no filename 2`] = `
 "{\\"version\\":3,\\"sources\\":[\\"<anon>\\"],\\"sourcesContent\\":[\\"\\\\n    enum Foo {\\\\n        Bar = 7,\\\\n        Baz = 2,\\\\n    }\\\\n    output = Foo.Bar\\"],\\"names\\":[],\\"mappings\\":\\"AACI,IAAA,AAAK,6BAAA;;;WAAA;EAAA;AAIL\\"}"
 `;
 
+exports[`should perform transformation with source maps with uncommon chars 1`] = `
+"var Foo = /*#__PURE__*/ function(Foo) {\\n    Foo[Foo[\\"Bar\\"] = 7] = \\"Bar\\";\\n    Foo[Foo[\\"Baz\\"] = 2] = \\"Baz\\";\\n    return Foo;\\n}(Foo || {});\\noutput = 7;\\n"
+`;
+
+exports[`should perform transformation with source maps with uncommon chars 2`] = `
+"{\\"version\\":3,\\"sources\\":[\\"dir%20with $unusual\\\\\\"chars?'åß∂ƒ©∆¬…\`.cts\\"],\\"names\\":[],\\"mappings\\":\\"AACI,IAAA,AAAK,6BAAA;;;WAAA;EAAA;AAKL\\"}"
+`;
+
 exports[`should perform transformation without source maps 1`] = `
 "var Foo = /*#__PURE__*/ function(Foo) {\\n    Foo[Foo[\\"Bar\\"] = 7] = \\"Bar\\";\\n    Foo[Foo[\\"Baz\\"] = 2] = \\"Baz\\";\\n    return Foo;\\n}(Foo || {});\\noutput = 7;\\n"
 `;

test/transform.test.js

@@ -70,6 +70,26 @@ test("should perform transformation with source maps", (t) => {
 	assert.strictEqual(result, 7);
 });
 
+test("should perform transformation with source maps with uncommon chars", (t) => {
+	const tsCode = `
+    enum Foo {
+        Bar = 7,
+        Baz = 2,
+    }
+
+    output = Foo.Bar`;
+	const { code, map } = transformSync(tsCode, {
+		mode: "transform",
+		sourceMap: true,
+		filename: "dir%20with $unusual\"chars?'åß∂ƒ©∆¬…`.cts",
+	});
+
+	t.assert.snapshot(code);
+	t.assert.snapshot(map);
+	const result = vm.runInContext(code, vm.createContext());
+	assert.strictEqual(result, 7);
+});
+
 test("should perform transformation with source maps no filename", (t) => {
 	const tsCode = `
     enum Foo {