CSE2410 Fall 2014 Bounce

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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

assertEquals("ab", "a" + "b", "ll");

assertEquals("12", "1" + "2", "dd");

assertEquals("123", "1" + "2" + "3", "ddd");

assertEquals("123", 1 + "2" + "3", "ndd");

assertEquals("123", "1" + 2 + "3", "dnd");

assertEquals("123", "1" + "2" + 3, "ddn");

assertEquals("123", "1" + 2 + 3, "dnn");

assertEquals("123", 1 + "2" + 3, "ndn");

assertEquals("33", 1 + 2 + "3", "nnd");

var x = "1";

assertEquals("12", x + 2, "vn");

assertEquals("12", x + "2", "vd");

assertEquals("21", 2 + x, "nv");

assertEquals("21", "2" + x, "dv");

var y = "2";

assertEquals("12", x + y, "vdvd");

x = 1;

assertEquals("12", x + y, "vnvd");

y = 2;

assertEquals(3, x + y, "vnvn");

x = "1";

assertEquals("12", x + y, "vdvn");

y = "2";

assertEquals("12", x + y, "vdvd2");

(function(x, y) {

  var z = "3";

  var w = "4";

  assertEquals("11", x + x, "xx");

  assertEquals("12", x + y, "xy");

  assertEquals("13", x + z, "xz");

  assertEquals("14", x + w, "xw");

  assertEquals("21", y + x, "yx");

  assertEquals("22", y + y, "yy");

  assertEquals("23", y + z, "yz");

  assertEquals("24", y + w, "yw");

  assertEquals("31", z + x, "zx");

  assertEquals("32", z + y, "zy");

  assertEquals("33", z + z, "zz");

  assertEquals("34", z + w, "zw");

  assertEquals("41", w + x, "wx");

  assertEquals("42", w + y, "wy");

  assertEquals("43", w + z, "wz");

  assertEquals("44", w + w, "ww");

  (function(){x = 1; z = 3;})();

  assertEquals(2, x + x, "x'x");

  assertEquals("12", x + y, "x'y");

  assertEquals(4, x + z, "x'z'");

  assertEquals("14", x + w, "x'w");

  assertEquals("21", y + x, "yx'");

  assertEquals("22", y + y, "yy");

  assertEquals("23", y + z, "yz'");

  assertEquals("24", y + w, "yw");

  assertEquals(4, z + x, "z'x'");

  assertEquals("32", z + y, "z'y");

  assertEquals(6, z + z, "z'z'");

  assertEquals("34", z + w, "z'w");

  assertEquals("41", w + x, "wx'");

  assertEquals("42", w + y, "wy");

  assertEquals("43", w + z, "wz'");

  assertEquals("44", w + w, "ww");

})("1", "2");

assertEquals("142", "1" + new Number(42), "sN");

assertEquals("421", new Number(42) + "1", "Ns");

assertEquals(84, new Number(42) + new Number(42), "NN");

assertEquals("142", "1" + new String("42"), "sS");

assertEquals("421", new String("42") + "1", "Ss");

assertEquals("142", "1" + new String("42"), "sS");

assertEquals("4242", new String("42") + new String("42"), "SS");

assertEquals("1true", "1" + true, "sb");

assertEquals("true1", true + "1", "bs");

assertEquals(2, true + true, "bs");

assertEquals("1true", "1" + new Boolean(true), "sB");

assertEquals("true1", new Boolean(true) + "1", "Bs");

assertEquals(2, new Boolean(true) + new Boolean(true), "Bs");

assertEquals("1undefined", "1" + void 0, "sv");

assertEquals("undefined1", (void 0)  + "1", "vs");

assertTrue(isNaN(void 0 + void 0), "vv");

assertEquals("1null", "1" + null, "su");

assertEquals("null1", null + "1", "us");

assertEquals(0, null + null, "uu");

(function (i) {

  // Check that incoming frames are merged correctly.

  var x;

  var y;

  var z;

  var w;

  switch (i) {

  case 1: x = 42; y = "stry"; z = "strz"; w = 42; break;

  default: x = "strx", y = 42; z = "strz"; w = 42; break;

  }

  var resxx = x + x;

  var resxy = x + y;

  var resxz = x + z;

  var resxw = x + w;

  var resyx = y + x;

  var resyy = y + y;

  var resyz = y + z;

  var resyw = y + w;

  var reszx = z + x;

  var reszy = z + y;

  var reszz = z + z;

  var reszw = z + w;

  var reswx = w + x;

  var reswy = w + y;

  var reswz = w + z;

  var resww = w + w;

  assertEquals(84, resxx, "swxx");

  assertEquals("42stry", resxy, "swxy");

  assertEquals("42strz", resxz, "swxz");

  assertEquals(84, resxw, "swxw");

  assertEquals("stry42", resyx, "swyx");

  assertEquals("strystry", resyy, "swyy");

  assertEquals("strystrz", resyz, "swyz");

  assertEquals("stry42", resyw, "swyw");

  assertEquals("strz42", reszx, "swzx");

  assertEquals("strzstry", reszy, "swzy");

  assertEquals("strzstrz", reszz, "swzz");

  assertEquals("strz42", reszw, "swzw");

  assertEquals(84, reswx, "swwx");

  assertEquals("42stry", reswy, "swwy");

  assertEquals("42strz", reswz, "swwz");

  assertEquals(84, resww, "swww");

})(1);