tests/stress/equals-masquerader.js

   1 function equalsNull(o) {
   2     return o == null;
   3 }
   4
   5 noInline(equalsNull);
   6
   7 function notEqualsNull(o) {
   8     return o != null;
   9 }
  10
  11 noInline(notEqualsNull);
  12
  13 function strictEqualsNull(o) {
  14     return o === null;
  15 }
  16
  17 noInline(strictEqualsNull);
  18
  19 function strictNotEqualsNull(o) {
  20     return o !== null;
  21 }
  22
  23 noInline(strictNotEqualsNull);
  24
  25 function equalsUndefined(o) {
  26     return o == void 0;
  27 }
  28
  29 noInline(equalsUndefined);
  30
  31 function notEqualsUndefined(o) {
  32     return o != void 0;
  33 }
  34
  35 noInline(notEqualsUndefined);
  36
  37 function strictEqualsUndefined(o) {
  38     return o === void 0;
  39 }
  40
  41 noInline(strictEqualsUndefined);
  42
  43 function strictNotEqualsUndefined(o) {
  44     return o !== void 0;
  45 }
  46
  47 noInline(strictNotEqualsNull);
  48
  49 function isFalsey(o) {
  50     return !o;
  51 }
  52
  53 noInline(isFalsey);
  54
  55 function test(func, iteration, object, outcome) {
  56     var result = func(object);
  57     if (result != outcome)
  58         throw new Error("Bad result: " + result + " on iteration " + iteration);
  59 }
  60
  61 for (var i = 0; i < 10000; ++i) {
  62     test(equalsNull, i, null, true);
  63     test(equalsNull, i, undefined, true);
  64     test(equalsNull, i, void 0, true);
  65     test(equalsNull, i, {}, false);
  66     test(equalsNull, i, makeMasquerader(), true);
  67 }
  68
  69 for (var i = 0; i < 10000; ++i) {
  70     test(notEqualsNull, i, null, false);
  71     test(notEqualsNull, i, undefined, false);
  72     test(notEqualsNull, i, void 0, false);
  73     test(notEqualsNull, i, {}, true);
  74     test(notEqualsNull, i, makeMasquerader(), false);
  75 }
  76
  77 for (var i = 0; i < 10000; ++i) {
  78     test(strictEqualsNull, i, null, true);
  79     test(strictEqualsNull, i, undefined, false);
  80     test(strictEqualsNull, i, void 0, false);
  81     test(strictEqualsNull, i, {}, false);
  82     test(strictEqualsNull, i, makeMasquerader(), false);
  83 }
  84
  85 for (var i = 0; i < 10000; ++i) {
  86     test(strictNotEqualsNull, i, null, false);
  87     test(strictNotEqualsNull, i, undefined, true);
  88     test(strictNotEqualsNull, i, void 0, true);
  89     test(strictNotEqualsNull, i, {}, true);
  90     test(strictNotEqualsNull, i, makeMasquerader(), true);
  91 }
  92
  93 for (var i = 0; i < 10000; ++i) {
  94     test(equalsUndefined, i, null, true);
  95     test(equalsUndefined, i, undefined, true);
  96     test(equalsUndefined, i, void 0, true);
  97     test(equalsUndefined, i, {}, false);
  98     test(equalsUndefined, i, makeMasquerader(), true);
  99 }
 100
 101 for (var i = 0; i < 10000; ++i) {
 102     test(notEqualsUndefined, i, null, false);
 103     test(notEqualsUndefined, i, undefined, false);
 104     test(notEqualsUndefined, i, void 0, false);
 105     test(notEqualsUndefined, i, {}, true);
 106     test(notEqualsUndefined, i, makeMasquerader(), false);
 107 }
 108
 109 for (var i = 0; i < 10000; ++i) {
 110     test(strictEqualsUndefined, i, null, false);
 111     test(strictEqualsUndefined, i, undefined, true);
 112     test(strictEqualsUndefined, i, void 0, true);
 113     test(strictEqualsUndefined, i, {}, false);
 114     test(strictEqualsUndefined, i, makeMasquerader(), false);
 115 }
 116
 117 for (var i = 0; i < 10000; ++i) {
 118     test(strictNotEqualsUndefined, i, null, true);
 119     test(strictNotEqualsUndefined, i, undefined, false);
 120     test(strictNotEqualsUndefined, i, void 0, false);
 121     test(strictNotEqualsUndefined, i, {}, true);
 122     test(strictNotEqualsUndefined, i, makeMasquerader(), true);
 123 }
 124
 125 for (var i = 0; i < 10000; ++i) {
 126     test(isFalsey, i, null, true);
 127     test(isFalsey, i, undefined, true);
 128     test(isFalsey, i, void 0, true);
 129     test(isFalsey, i, {}, false);
 130     test(isFalsey, i, makeMasquerader(), true);
 131 }