deps/v8/test/mjsunit/es6/string-includes.js

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  27
  28 assertEquals(1, String.prototype.includes.length);
  29
  30 var reString = "asdf[a-z]+(asdf)?";
  31 assertTrue(reString.includes("[a-z]+"));
  32 assertTrue(reString.includes("(asdf)?"));
  33
  34 // Random greek letters
  35 var twoByteString = "\u039a\u0391\u03a3\u03a3\u0395";
  36
  37 // Test single char pattern
  38 assertTrue(twoByteString.includes("\u039a"), "Lamda");
  39 assertTrue(twoByteString.includes("\u0391"), "Alpha");
  40 assertTrue(twoByteString.includes("\u03a3"), "First Sigma");
  41 assertTrue(twoByteString.includes("\u03a3",3), "Second Sigma");
  42 assertTrue(twoByteString.includes("\u0395"), "Epsilon");
  43 assertFalse(twoByteString.includes("\u0392"), "Not beta");
  44
  45 // Test multi-char pattern
  46 assertTrue(twoByteString.includes("\u039a\u0391"), "lambda Alpha");
  47 assertTrue(twoByteString.includes("\u0391\u03a3"), "Alpha Sigma");
  48 assertTrue(twoByteString.includes("\u03a3\u03a3"), "Sigma Sigma");
  49 assertTrue(twoByteString.includes("\u03a3\u0395"), "Sigma Epsilon");
  50
  51 assertFalse(twoByteString.includes("\u0391\u03a3\u0395"),
  52     "Not Alpha Sigma Epsilon");
  53
  54 //single char pattern
  55 assertTrue(twoByteString.includes("\u0395"));
  56
  57 assertThrows("String.prototype.includes.call(null, 'test')", TypeError);
  58 assertThrows("String.prototype.includes.call(null, null)", TypeError);
  59 assertThrows("String.prototype.includes.call(undefined, undefined)", TypeError);
  60
  61 assertThrows("String.prototype.includes.apply(null, ['test'])", TypeError);
  62 assertThrows("String.prototype.includes.apply(null, [null])", TypeError);
  63 assertThrows("String.prototype.includes.apply(undefined, [undefined])", TypeError);
  64
  65 var TEST_INPUT = [{
  66   msg: "Empty string", val: ""
  67 }, {
  68   msg: "Number 1234.34", val: 1234.34
  69 }, {
  70   msg: "Integer number 0", val: 0
  71 }, {
  72   msg: "Negative number -1", val: -1
  73 }, {
  74   msg: "Boolean true", val: true
  75 }, {
  76   msg: "Boolean false", val: false
  77 }, {
  78   msg: "Empty array []", val: []
  79 }, {
  80   msg: "Empty object {}", val: {}
  81 }, {
  82   msg: "Array of size 3", val: new Array(3)
  83 }];
  84
  85 var i = 0;
  86 var l = TEST_INPUT.length;
  87
  88 for (; i < l; i++) {
  89   var e = TEST_INPUT[i];
  90   var v = e.val;
  91   var s = String(v);
  92   assertTrue(s.includes(v), e.msg);
  93   assertTrue(String.prototype.includes.call(v, v), e.msg);
  94   assertTrue(String.prototype.includes.apply(v, [v]), e.msg);
  95 }
  96
  97 // Test cases found in FF
  98 assertTrue("abc".includes("a"));
  99 assertTrue("abc".includes("b"));
 100 assertTrue("abc".includes("abc"));
 101 assertTrue("abc".includes("bc"));
 102 assertFalse("abc".includes("d"));
 103 assertFalse("abc".includes("abcd"));
 104 assertFalse("abc".includes("ac"));
 105 assertTrue("abc".includes("abc", 0));
 106 assertTrue("abc".includes("bc", 0));
 107 assertFalse("abc".includes("de", 0));
 108 assertTrue("abc".includes("bc", 1));
 109 assertTrue("abc".includes("c", 1));
 110 assertFalse("abc".includes("a", 1));
 111 assertFalse("abc".includes("abc", 1));
 112 assertTrue("abc".includes("c", 2));
 113 assertFalse("abc".includes("d", 2));
 114 assertFalse("abc".includes("dcd", 2));
 115 assertFalse("abc".includes("a", 42));
 116 assertFalse("abc".includes("a", Infinity));
 117 assertTrue("abc".includes("ab", -43));
 118 assertFalse("abc".includes("cd", -42));
 119 assertTrue("abc".includes("ab", -Infinity));
 120 assertFalse("abc".includes("cd", -Infinity));
 121 assertTrue("abc".includes("ab", NaN));
 122 assertFalse("abc".includes("cd", NaN));
 123 assertFalse("xyzzy".includes("zy\0", 2));
 124
 125 var dots = Array(10000).join(".");
 126 assertFalse(dots.includes("\x01", 10000));
 127 assertFalse(dots.includes("\0", 10000));
 128
 129 var myobj = {
 130   toString: function () {
 131     return "abc";
 132   },
 133   includes: String.prototype.includes
 134 };
 135 assertTrue(myobj.includes("abc"));
 136 assertFalse(myobj.includes("cd"));
 137
 138 var gotStr = false;
 139 var gotPos = false;
 140 myobj = {
 141   toString: function () {
 142     assertFalse(gotPos);
 143     gotStr = true;
 144     return "xyz";
 145   },
 146   includes: String.prototype.includes
 147 };
 148
 149 assertEquals("foo[a-z]+(bar)?".includes("[a-z]+"), true);
 150 assertThrows("'foo[a-z]+(bar)?'.includes(/[a-z]+/)", TypeError);
 151 assertThrows("'foo/[a-z]+/(bar)?'.includes(/[a-z]+/)", TypeError);
 152 assertEquals("foo[a-z]+(bar)?".includes("(bar)?"), true);
 153 assertThrows("'foo[a-z]+(bar)?'.includes(/(bar)?/)", TypeError);
 154 assertThrows("'foo[a-z]+/(bar)?/'.includes(/(bar)?/)", TypeError);
 155
 156 assertThrows("String.prototype.includes.call({ 'toString': function() { " +
 157   "throw RangeError(); } }, /./)", RangeError);
 158 assertThrows("String.prototype.includes.call({ 'toString': function() { " +
 159   "return 'abc'; } }, /./)", TypeError);
 160
 161 assertThrows("String.prototype.includes.apply({ 'toString': function() { " +
 162   "throw RangeError(); } }, [/./])", RangeError);
 163 assertThrows("String.prototype.includes.apply({ 'toString': function() { " +
 164   "return 'abc'; } }, [/./])", TypeError);