test: update minimifier tests

Author: armano2

crates/oxc_minifier/src/peephole/fold_constants.rs

@@ -1380,7 +1380,7 @@ mod test {
     fn test_fold_logical_op2() {
         fold("x = function(){} && x", "x=x");
         fold("x = true && function(){}", "x=function(){}");
-        fold("x = [(function(){alert(x)})()] && x", "x=((function(){alert(x)})(),x)");
+        fold("x = [(function(){alert(x)})()] && x", "x=(alert(x), x)");
     }
 
     #[test]

crates/oxc_minifier/tests/peephole/esbuild.rs

@@ -1297,11 +1297,11 @@ fn test_flatten_values() {
     test("(function() {})()", "");
     test("(function*() {})()", "");
     test("(async function() {})()", "");
-    test("(function() { a() })()", "(function() { a();})();");
+    test("(function() { a() })()", "a();");
     test("(function*() { a() })()", "(function* () { a();})();");
     test("(async function() { a() })()", "(async function() { a();})();");
     test("(() => x)()", "x;");
-    test("/* @__PURE__ */ (() => x)()", "");
+    test("/* @__PURE__ */ (() => x)()", "x;");
     test("/* @__PURE__ */ (() => x)(y, z)", "y, z;");
     test("_ = `a${x}b${y}c`", "_ = `a${x}b${y}c`;");
     test("_ = `a${x}b${'y'}c`", "_ = `a${x}byc`;");

crates/oxc_minifier/tests/peephole/inline_single_use_variable.rs

@@ -226,20 +226,20 @@ fn test_inline_single_use_variable() {
     // cannot be compressed to `function wrapper() { var foo; globalThis[console.log(foo)] = (() => { foo = 1 })() }`
     test(
         "function wrapper() { var foo; var bar = (() => { foo = 1 })(); globalThis[console.log(foo)] = bar }",
-        "function wrapper() { var foo, bar = (() => { foo = 1 })(); globalThis[console.log(foo)] = bar }",
+        "function wrapper() { var foo, bar = (foo = 1, void 0); globalThis[console.log(foo)] = bar }",
     );
     // cannot be compressed to `function wrapper() { let foo; return foo.bar = (() => { foo = {} })(), foo }`
     test(
         "function wrapper() { let foo; const bar = (() => { foo = {} })(); foo.bar = bar; return foo }",
-        "function wrapper() { let foo, bar = (() => { foo = {} })(); return foo.bar = bar, foo }",
+        "function wrapper() { let foo, bar = (foo = {}, void 0); return foo.bar = void 0, foo }",
     );
     test(
         "function wrapper() { let foo = {}; const bar = (() => { console.log() })(); foo.bar = bar; return foo }",
-        "function wrapper() { let foo = {}; return foo.bar = (() => { console.log() })(), foo }",
+        "function wrapper() { let foo = {}, bar = (console.log(), void 0); return foo.bar = void 0, foo; }",
     );
     test(
         "function wrapper() { const bar = (() => { console.log() })(); this.bar = bar; return this }",
-        "function wrapper() { return this.bar = (() => { console.log() })(), this }",
+        "function wrapper() { let bar = (console.log(), void 0); return this.bar = void 0, this; }",
     );
 }
 

crates/oxc_minifier/tests/peephole/merge_assignments_to_declarations.rs

@@ -36,7 +36,7 @@ fn merge_assignments_to_declarations_let() {
     test("let a, b; a = c(); b = d()", "let a, b; a = c(), b = d()"); // same as above
     test("let a, b; a = b", "let a, b; a = void 0"); // `let a = b, b` will cause TDZ error
     test_same("let a; a = foo(a)"); // `let a = foo(a)` will cause TDZ error
-    test_same("let a; a = (() => a)()"); // `let a = (() => a)()` will cause TDZ error
+    test("let a; a = (() => a)()", "let a; a = a;"); // `let a = (() => a)()` will cause TDZ error
     test("let a; a = () => a", "let a = () => a");
 }
 

crates/oxc_minifier/tests/peephole/obscure_edge_cases.rs

@@ -533,7 +533,7 @@ fn test_esm_module_patterns() {
     );
 
     // ESM with IIFE patterns
-    test("export default (() => { return 1 + 2; })();", "export default (() => 3)();");
+    test("export default (() => { return 1 + 2; })();", "export default 3;");
     test(
         "export default (async () => { return await fetchData(); })();",
         "export default (async () => await fetchData())();",