text: load("test-common.js");
  
  try {
      assert(Math.cos(0) === 1);
      assert(Math.cos(null) === 1);
      assert(Math.cos('') === 1);
      assert(Math.cos([]) === 1);
      assert(Math.cos(Math.PI) === -1);
      assert(isNaN(Math.cos()));
      assert(isNaN(Math.cos(undefined)));
      assert(isNaN(Math.cos([1, 2, 3])));
      assert(isNaN(Math.cos({})));
      assert(isNaN(Math.cos("foo")));
  
      console.log("PASS");
  } catch (e) {
      console.log("FAIL: " + e);
  }
  