var f = Function("a", "b", "return a + b;"); assertEq(f.toString(), "function anonymous(a,b\n) {\nreturn a + b;\n}"); assertEq(f.toSource(), "(function anonymous(a,b\n) {\nreturn a + b;\n})"); assertEq(decompileFunction(f), f.toString()); f = Function("a", "...rest", "return rest[42] + b;"); assertEq(f.toString(), "function anonymous(a,...rest\n) {\nreturn rest[42] + b;\n}"); assertEq(f.toSource(), "(function anonymous(a,...rest\n) {\nreturn rest[42] + b;\n})") assertEq(decompileFunction(f), f.toString()); f = Function(""); assertEq(f.toString(), "function anonymous(\n) {\n\n}"); f = Function("", "(abc)"); assertEq(f.toString(), "function anonymous(\n) {\n(abc)\n}"); f = Function("", "return function (a,b) a + b;")(); assertEq(f.toString(), "function (a,b) a + b");