test/mjsunit/function-without-prototype.js

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// Tests that function does not have prototype.
function testPrototype(f) {
  assertFalse('prototype' in f);
  assertEquals(undefined, f.prototype);
  f.prototype = 42;
  assertEquals(42, f.prototype);
  assertTrue('prototype' in f);
}

// Tests that construction from function throws.
function testConstruction(name) {
  assertThrows("new " + name + "()");
  eval(name + ".prototype = 42;");
  assertThrows("new " + name + "()");
}

testPrototype(eval);
testPrototype(Array.prototype.push);
testPrototype(Function.prototype.call);
testPrototype(String.fromCharCode);
var date = new Date();
testPrototype(date.toString);

testConstruction("parseInt");
testConstruction("Function.prototype.apply");
var regexp = /abc/g;
testConstruction("regexp.test");