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Add tests for Array.prototype.includes

This commit is contained in:
Leonardo Balter 2016-05-17 17:24:13 -04:00 committed by Mike Pennisi
parent 2cf968cfad
commit c7f9b12cc4
26 changed files with 918 additions and 12 deletions
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32
test/built-ins/Array/prototype/Symbol.unscopables/value.js vendored
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@ -1,20 +1,23 @@
// Copyright (C) 2015 Mike Pennisi. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 22.1.3.31
esid: sec-array.prototype-@@unscopables
description: >
Initial value of `Symbol.unscopables` property
info: >
1. Let blackList be ObjectCreate(null).
2. Perform CreateDataProperty(blackList, "copyWithin", true).
3. Perform CreateDataProperty(blackList, "entries", true).
4. Perform CreateDataProperty(blackList, "fill", true).
5. Perform CreateDataProperty(blackList, "find", true).
6. Perform CreateDataProperty(blackList, "findIndex", true).
7. Perform CreateDataProperty(blackList, "keys", true).
8. Perform CreateDataProperty(blackList, "values", true).
9. Assert: Each of the above calls will return true.
10. Return blackList.
info: |
22.1.3.32 Array.prototype [ @@unscopables ]
1. Let unscopableList be ObjectCreate(null).
2. Perform CreateDataProperty(unscopableList, "copyWithin", true).
3. Perform CreateDataProperty(unscopableList, "entries", true).
4. Perform CreateDataProperty(unscopableList, "fill", true).
5. Perform CreateDataProperty(unscopableList, "find", true).
6. Perform CreateDataProperty(unscopableList, "findIndex", true).
7. Perform CreateDataProperty(unscopableList, "includes", true).
8. Perform CreateDataProperty(unscopableList, "keys", true).
9. Perform CreateDataProperty(unscopableList, "values", true).
10. Assert: Each of the above calls will return true.
11. Return unscopableList.
includes: [propertyHelper.js]
features: [Symbol.unscopables]
---*/
@ -48,6 +51,11 @@ verifyEnumerable(unscopables, 'findIndex');
verifyWritable(unscopables, 'findIndex');
verifyConfigurable(unscopables, 'findIndex');
assert.sameValue(unscopables.includes, true, '`includes` property value');
verifyEnumerable(unscopables, 'includes');
verifyWritable(unscopables, 'includes');
verifyConfigurable(unscopables, 'includes');
assert.sameValue(unscopables.keys, true, '`keys` property value');
verifyEnumerable(unscopables, 'keys');
verifyWritable(unscopables, 'keys');

23
test/built-ins/Array/prototype/includes/fromIndex-equal-or-greater-length-returns-false.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Return false if fromIndex >= ArrayLength
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
4. Let n be ? ToInteger(fromIndex). (If fromIndex is undefined, this step
produces the value 0.)
5. If n ≥ 0, then
a. Let k be n.
...
7. Repeat, while k < len
...
8. Return false.
---*/
var sample = [ 7, 7, 7, 7 ];
assert.sameValue(sample.includes(7, 4), false, "length");
assert.sameValue(sample.includes(7, 5), false, "length + 1");

34
test/built-ins/Array/prototype/includes/fromIndex-infinity.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: handle Infinity values for fromIndex
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
4. Let n be ? ToInteger(fromIndex). (If fromIndex is undefined, this step
produces the value 0.)
5. If n ≥ 0, then
a. Let k be n.
6. Else n < 0,
a. Let k be len + n.
b. If k < 0, let k be 0.
7. Repeat, while k < len
...
8. Return false.
---*/
var sample = [42, 43, 43, 41];
assert.sameValue(
sample.includes(43, Infinity),
false,
"includes(43, Infinity)"
);
assert.sameValue(
sample.includes(43, -Infinity),
true,
"includes(43, -Infinity)"
);

21
test/built-ins/Array/prototype/includes/fromIndex-minus-zero.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: -0 fromIndex becomes 0
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
5. If n ≥ 0, then
a. Let k be n.
...
7. Repeat, while k < len
...
---*/
var sample = [42, 43];
assert.sameValue(sample.includes(42, -0), true, "-0 [0]");
assert.sameValue(sample.includes(43, -0), true, "-0 [1]");
assert.sameValue(sample.includes(44, -0), false, "-0 [2]");

43
test/built-ins/Array/prototype/includes/get-prop.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: get array-like indexed properties
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
...
includes: [compareArray.js]
features: [Proxy]
---*/
var calls;
var obj = {};
var p = new Proxy(obj, {
get: function(_, key) {
calls.push(key);
if (key === "length") {
return 4;
}
return key * 10;
}
});
calls = [];
assert.sameValue([].includes.call(p, 42), false);
assert(
compareArray(calls, ["length", "0", "1", "2", "3"]),
"loops through all indexes"
);
calls = [];
assert.sameValue([].includes.call(p, 10), true, "uses the returned value");
assert(compareArray(calls, ["length", "0", "1"]), "loops until value is found");

82
test/built-ins/Array/prototype/includes/length-boundaries.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: length boundaries from ToLength operation
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
2. Let len be ? ToLength(? Get(O, "length")).
...
7.1.15 ToLength ( argument )
1. Let len be ? ToInteger(argument).
2. If len ≤ +0, return +0.
3. If len is +∞, return 2**53-1.
4. Return min(len, 2**53-1).
---*/
var obj = {
"0": "a",
"1": "b",
"9007199254740990": "c", // 2 ** 53 - 2
"9007199254740991": "d", // 2 ** 53 - 1
"9007199254740992": "e", // 2 ** 53
};
obj.length = -0;
assert.sameValue([].includes.call(obj, "a"), false, "-0");
obj.length = -1;
assert.sameValue([].includes.call(obj, "a"), false, "-1");
obj.length = -0.1;
assert.sameValue([].includes.call(obj, "a"), false, "-0.1");
obj.length = -Infinity;
assert.sameValue([].includes.call(obj, "a"), false, "-Infinity");
var fromIndex = 9007199254740990;
obj.length = 9007199254740991;
assert.sameValue(
[].includes.call(obj, "c", fromIndex),
true,
"2**53-1, found value at 2**53-2"
);
obj.length = 9007199254740991;
assert.sameValue(
[].includes.call(obj, "d", fromIndex),
false,
"2**53-1, ignores indexes >= 2**53-1"
);
obj.length = 9007199254740992;
assert.sameValue(
[].includes.call(obj, "d", fromIndex),
false,
"2**53, ignores indexes >= 2**53-1"
);
obj.length = 9007199254740993;
assert.sameValue(
[].includes.call(obj, "d", fromIndex),
false,
"2**53+1, ignores indexes >= 2**53-1"
);
obj.length = Infinity;
assert.sameValue(
[].includes.call(obj, "c", fromIndex),
true,
"Infinity, found item"
);
assert.sameValue(
[].includes.call(obj, "d", fromIndex),
false,
"Infinity, ignores indexes >= 2**53-1"
);

27
test/built-ins/Array/prototype/includes/length-zero-returns-false.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Returns false if length is 0
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
2. Let len be ? ToLength(? Get(O, "length")).
3. If len is 0, return false.
...
---*/
var calls = 0;
var fromIndex = {
valueOf: function() {
calls++;
}
};
var sample = [];
assert.sameValue(sample.includes(0), false, "returns false");
assert.sameValue(sample.includes(), false, "returns false - no arg");
assert.sameValue(sample.includes(0, fromIndex), false, "using fromIndex");
assert.sameValue(calls, 0, "length is checked before ToInteger(fromIndex)");

29
test/built-ins/Array/prototype/includes/length.js vendored Executable file
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@ -0,0 +1,29 @@
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: >
Array.prototype.includes.length is 1.
info: |
Array.prototype.includes ( searchElement [ , fromIndex ] )
17 ECMAScript Standard Built-in Objects:
Every built-in Function object, including constructors, has a length
property whose value is an integer. Unless otherwise specified, this
value is equal to the largest number of named arguments shown in the
subclause headings for the function description, including optional
parameters. However, rest parameters shown using the form “...name”
are not included in the default argument count.
Unless otherwise specified, the length property of a built-in Function
object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
[[Configurable]]: true }.
includes: [propertyHelper.js]
---*/
assert.sameValue(Array.prototype.includes.length, 1);
verifyNotEnumerable(Array.prototype.includes, "length");
verifyNotWritable(Array.prototype.includes, "length");
verifyConfigurable(Array.prototype.includes, "length");

26
test/built-ins/Array/prototype/includes/name.js vendored Executable file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: >
Array.prototype.includes.name is "includes".
info: |
Array.prototype.includes (searchElement [ , fromIndex ] )
17 ECMAScript Standard Built-in Objects:
Every built-in Function object, including constructors, that is not
identified as an anonymous function has a name property whose value
is a String.
Unless otherwise specified, the name property of a built-in Function
object, if it exists, has the attributes { [[Writable]]: false,
[[Enumerable]]: false, [[Configurable]]: true }.
includes: [propertyHelper.js]
---*/
assert.sameValue(Array.prototype.includes.name, "includes");
verifyNotEnumerable(Array.prototype.includes, "name");
verifyNotWritable(Array.prototype.includes, "name");
verifyConfigurable(Array.prototype.includes, "name");

19
test/built-ins/Array/prototype/includes/no-arg.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: no argument searches for a undefined value
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
b. If SameValueZero(searchElement, elementK) is true, return true.
c. Increase k by 1.
...
---*/
assert.sameValue([0].includes(), false, "[0].includes()");
assert.sameValue([undefined].includes(), true, "[undefined].includes()");

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test/built-ins/Array/prototype/includes/prop-desc.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: >
"includes" property of Array.prototype
info: |
ES6 section 17: Every other data property described in clauses 18 through 26
and in Annex B.2 has the attributes { [[Writable]]: true,
[[Enumerable]]: false, [[Configurable]]: true } unless otherwise specified.
includes: [propertyHelper.js]
---*/
verifyNotEnumerable(Array.prototype, "includes");
verifyWritable(Array.prototype, "includes");
verifyConfigurable(Array.prototype, "includes");

25
test/built-ins/Array/prototype/includes/return-abrupt-get-length.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Return abrupt from Get(O, "length")
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
2. Let len be ? ToLength(? Get(O, "length")).
...
---*/
var obj = {};
Object.defineProperty(obj, "length", {
get: function() {
throw new Test262Error();
}
});
assert.throws(Test262Error, function() {
[].includes.call(obj, 7);
});

38
test/built-ins/Array/prototype/includes/return-abrupt-get-prop.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Return abrupt getting index properties
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
...
---*/
var stopped = 0;
var obj = {
length: 3
};
Object.defineProperty(obj, "1", {
get: function() {
throw new Test262Error();
}
});
Object.defineProperty(obj, "2", {
get: function() {
stopped++;
}
});
assert.throws(Test262Error, function() {
[].includes.call(obj, 7);
});
assert.sameValue(stopped, 0, "It stops the loop after the abrupt completion");

23
test/built-ins/Array/prototype/includes/return-abrupt-tointeger-fromindex-symbol.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Return abrupt from ToInteger(fromIndex) - using symbol
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
4. Let n be ? ToInteger(fromIndex). (If fromIndex is undefined, this step
produces the value 0.)
...
features: [Symbol]
---*/
var fromIndex = Symbol("1");
var sample = [7];
assert.throws(TypeError, function() {
sample.includes(7, fromIndex);
});

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test/built-ins/Array/prototype/includes/return-abrupt-tointeger-fromindex.js vendored Normal file
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@ -0,0 +1,26 @@
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Return abrupt from ToInteger(fromIndex)
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
4. Let n be ? ToInteger(fromIndex). (If fromIndex is undefined, this step
produces the value 0.)
...
---*/
var fromIndex = {
valueOf: function() {
throw new Test262Error();
}
};
var sample = [7];
assert.throws(Test262Error, function() {
sample.includes(7, fromIndex);
});

22
test/built-ins/Array/prototype/includes/return-abrupt-tonumber-length-symbol.js vendored Normal file
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@ -0,0 +1,22 @@
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Return abrupt from ToNumber(symbol "length")
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
2. Let len be ? ToLength(? Get(O, "length")).
...
features: [Symbol]
---*/
var obj = {
length: Symbol("1")
};
assert.throws(TypeError, function() {
[].includes.call(obj, 7);
});

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test/built-ins/Array/prototype/includes/return-abrupt-tonumber-length.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Return abrupt from ToNumber("length")
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
2. Let len be ? ToLength(? Get(O, "length")).
...
---*/
var obj1 = {
length: {
valueOf: function() {
throw new Test262Error();
}
}
};
var obj2 = {
length: {
toString: function() {
throw new Test262Error();
}
}
};
assert.throws(Test262Error, function() {
[].includes.call(obj1);
}, "valueOf");
assert.throws(Test262Error, function() {
[].includes.call(obj2);
}, "toString");

27
test/built-ins/Array/prototype/includes/samevaluezero.js vendored Normal file
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@ -0,0 +1,27 @@
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: search element is compared using SameValueZero
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
b. If SameValueZero(searchElement, elementK) is true, return true.
c. Increase k by 1.
...
---*/
var sample = [42, 0, 1, NaN];
assert.sameValue(sample.includes("42"), false, "'42'");
assert.sameValue(sample.includes([42]), false, "[42]");
assert.sameValue(sample.includes(42.0), true, "42.0");
assert.sameValue(sample.includes(-0), true, "-0");
assert.sameValue(sample.includes(true), false, "true");
assert.sameValue(sample.includes(false), false, "false");
assert.sameValue(sample.includes(null), false, "null");
assert.sameValue(sample.includes(""), false, "empty string");
assert.sameValue(sample.includes(NaN), true, "NaN");

41
test/built-ins/Array/prototype/includes/search-found-returns-true.js vendored Normal file
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@ -0,0 +1,41 @@
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: returns true for found index
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
5. If n ≥ 0, then
a. Let k be n.
6. Else n < 0,
a. Let k be len + n.
b. If k < 0, let k be 0.
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
b. If SameValueZero(searchElement, elementK) is true, return true.
c. Increase k by 1.
...
features: [Symbol]
---*/
var symbol = Symbol("1");
var obj = {};
var array = [];
var sample = [42, "test262", null, undefined, true, false, 0, -1, "", symbol, obj, array];
assert.sameValue(sample.includes(42), true, "42");
assert.sameValue(sample.includes("test262"), true, "'test262'");
assert.sameValue(sample.includes(null), true, "null");
assert.sameValue(sample.includes(undefined), true, "undefined");
assert.sameValue(sample.includes(true), true, "true");
assert.sameValue(sample.includes(false), true, "false");
assert.sameValue(sample.includes(0), true, "0");
assert.sameValue(sample.includes(-1), true, "-1");
assert.sameValue(sample.includes(""), true, "the empty string");
assert.sameValue(sample.includes(symbol), true, "symbol");
assert.sameValue(sample.includes(obj), true, "obj");
assert.sameValue(sample.includes(array), true, "array");

41
test/built-ins/Array/prototype/includes/search-not-found-returns-false.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: returns false if the element is not found
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
5. If n ≥ 0, then
a. Let k be n.
6. Else n < 0,
a. Let k be len + n.
b. If k < 0, let k be 0.
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
b. If SameValueZero(searchElement, elementK) is true, return true.
c. Increase k by 1.
8. Return false.
features: [Symbol]
---*/
assert.sameValue([42].includes(43), false, "43");
assert.sameValue(["test262"].includes("test"), false, "string");
assert.sameValue([0, "test262", undefined].includes(""), false, "the empty string");
assert.sameValue(["true", false].includes(true), false, "true");
assert.sameValue(["", true].includes(false), false, "false");
assert.sameValue([undefined, false, 0, 1].includes(null), false, "null");
assert.sameValue([null].includes(undefined), false, "undefined");
assert.sameValue([Symbol("1")].includes(Symbol("1")), false, "symbol");
assert.sameValue([{}].includes({}), false, "object");
assert.sameValue([[]].includes([]), false, "array");
var sample = [42];
assert.sameValue(sample.includes(sample), false, "this");

51
test/built-ins/Array/prototype/includes/sparse.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Searches all indexes from a sparse array
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
5. If n ≥ 0, then
a. Let k be n.
6. Else n < 0,
a. Let k be len + n.
b. If k < 0, let k be 0.
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
b. If SameValueZero(searchElement, elementK) is true, return true.
c. Increase k by 1.
...
---*/
assert.sameValue(
[ , , , ].includes(undefined),
true,
"[ , , , ].includes(undefined)"
);
assert.sameValue(
[ , , , 42, ].includes(undefined, 4),
false,
"[ , , , 42, ].includes(undefined, 4)"
);
var sample = [ , , , 42, , ];
assert.sameValue(
sample.includes(undefined),
true,
"sample.includes(undefined)"
);
assert.sameValue(
sample.includes(undefined, 4),
true,
"sample.includes(undefined, 4)"
);
assert.sameValue(
sample.includes(42, 3),
true,
"sample.includes(42, 3)"
);

23
test/built-ins/Array/prototype/includes/this-is-not-object.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 22.2.3.14
esid: sec-array.prototype.includes
description: >
Throws a TypeError exception when `this` cannot be coerced to Object
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
1. Let O be ? ToObject(this value).
...
---*/
var includes = Array.prototype.includes;
assert.throws(TypeError, function() {
includes.call(undefined, 42);
}, "this is undefined");
assert.throws(TypeError, function() {
includes.call(null, 42);
}, "this is null");

52
test/built-ins/Array/prototype/includes/tointeger-fromindex.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: get the integer value from fromIndex
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
4. Let n be ? ToInteger(fromIndex). (If fromIndex is undefined, this step
produces the value 0.)
5. If n ≥ 0, then
a. Let k be n.
...
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
b. If SameValueZero(searchElement, elementK) is true, return true.
c. Increase k by 1.
8. Return false.
---*/
var obj = {
valueOf: function() {
return 1;
}
};
var sample = [42, 43];
assert.sameValue(sample.includes(42, "1"), false, "string [0]");
assert.sameValue(sample.includes(43, "1"), true, "string [1]");
assert.sameValue(sample.includes(42, true), false, "true [0]");
assert.sameValue(sample.includes(43, true), true, "true [1]");
assert.sameValue(sample.includes(42, false), true, "false [0]");
assert.sameValue(sample.includes(43, false), true, "false [1]");
assert.sameValue(sample.includes(42, NaN), true, "NaN [0]");
assert.sameValue(sample.includes(43, NaN), true, "NaN [1]");
assert.sameValue(sample.includes(42, null), true, "null [0]");
assert.sameValue(sample.includes(43, null), true, "null [1]");
assert.sameValue(sample.includes(42, undefined), true, "undefined [0]");
assert.sameValue(sample.includes(43, undefined), true, "undefined [1]");
assert.sameValue(sample.includes(42, null), true, "null [0]");
assert.sameValue(sample.includes(43, null), true, "null [1]");
assert.sameValue(sample.includes(42, obj), false, "object [0]");
assert.sameValue(sample.includes(43, obj), true, "object [1]");

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test/built-ins/Array/prototype/includes/tolength-length.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: length value coerced on ToLength
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
2. Let len be ? ToLength(? Get(O, "length")).
...
7.1.15 ToLength ( argument )
1. Let len be ? ToInteger(argument).
2. If len ≤ +0, return +0.
3. If len is +∞, return 253-1.
4. Return min(len, 253-1).
---*/
var obj = {
"0": "a",
"1": "b"
};
obj.length = 0.1;
assert.sameValue([].includes.call(obj, "a"), false, "0.1");
obj.length = 0.99;
assert.sameValue([].includes.call(obj, "a"), false, "0.99");
obj.length = 1.00001;
assert.sameValue([].includes.call(obj, "a"), true, "1.00001");
obj.length = 1.1;
assert.sameValue([].includes.call(obj, "a"), true, "1.1");
obj.length = "0";
assert.sameValue([].includes.call(obj, "a"), false, "string '0'");
obj.length = "1";
assert.sameValue([].includes.call(obj, "a"), true, "string '1', item found");
obj.length = "1";
assert.sameValue([].includes.call(obj, "b"), false, "string '1', item not found");
obj.length = "2";
assert.sameValue([].includes.call(obj, "b"), true, "string '2', item found");
obj.length = "";
assert.sameValue([].includes.call(obj, "a"), false, "the empty string");
obj.length = undefined;
assert.sameValue([].includes.call(obj, "a"), false, "undefined");
obj.length = NaN;
assert.sameValue([].includes.call(obj, "a"), false, "NaN");
obj.length = [];
assert.sameValue([].includes.call(obj, "a"), false, "[]");
obj.length = [1];
assert.sameValue([].includes.call(obj, "a"), true, "[1]");
obj.length = null;
assert.sameValue([].includes.call(obj, "a"), false, "null");
obj.length = false;
assert.sameValue([].includes.call(obj, "a"), false, "false");
obj.length = true;
assert.sameValue([].includes.call(obj, "a"), true, "true");
obj.length = { valueOf: function() { return 2; } };
assert.sameValue([].includes.call(obj, "b"), true, "ordinary object.valueOf");
obj.length = { toString: function() { return 2; } };
assert.sameValue([].includes.call(obj, "b"), true, "ordinary object.toString");

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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: Searches using fromIndex
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
5. If n ≥ 0, then
a. Let k be n.
6. Else n < 0,
a. Let k be len + n.
b. If k < 0, let k be 0.
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
b. If SameValueZero(searchElement, elementK) is true, return true.
c. Increase k by 1.
...
---*/
var sample = ["a", "b", "c"];
assert.sameValue(sample.includes("a", 0), true, "includes('a', 0)");
assert.sameValue(sample.includes("a", 1), false, "includes('a', 1)");
assert.sameValue(sample.includes("a", 2), false, "includes('a', 2)");
assert.sameValue(sample.includes("b", 0), true, "includes('b', 0)");
assert.sameValue(sample.includes("b", 1), true, "includes('b', 1)");
assert.sameValue(sample.includes("b", 2), false, "includes('b', 2)");
assert.sameValue(sample.includes("c", 0), true, "includes('c', 0)");
assert.sameValue(sample.includes("c", 1), true, "includes('c', 1)");
assert.sameValue(sample.includes("c", 2), true, "includes('c', 2)");
assert.sameValue(sample.includes("a", -1), false, "includes('a', -1)");
assert.sameValue(sample.includes("a", -2), false, "includes('a', -2)");
assert.sameValue(sample.includes("a", -3), true, "includes('a', -3)");
assert.sameValue(sample.includes("a", -4), true, "includes('a', -4)");
assert.sameValue(sample.includes("b", -1), false, "includes('b', -1)");
assert.sameValue(sample.includes("b", -2), true, "includes('b', -2)");
assert.sameValue(sample.includes("b", -3), true, "includes('b', -3)");
assert.sameValue(sample.includes("b", -4), true, "includes('b', -4)");
assert.sameValue(sample.includes("c", -1), true, "includes('c', -1)");
assert.sameValue(sample.includes("c", -2), true, "includes('c', -2)");
assert.sameValue(sample.includes("c", -3), true, "includes('c', -3)");
assert.sameValue(sample.includes("c", -4), true, "includes('c', -4)");

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test/built-ins/Array/prototype/includes/values-are-not-cached.js vendored Normal file
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.includes
description: indexed values are not cached
info: |
22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] )
...
7. Repeat, while k < len
a. Let elementK be the result of ? Get(O, ! ToString(k)).
...
includes: [compareArray.js]
---*/
function getCleanObj() {
var obj = {};
Object.defineProperty(obj, "length", {
get: function() {
Object.defineProperty(obj, "0", {
get: function() {
obj[1] = "ecma262";
obj[2] = "cake";
return "tc39";
}
});
return 2;
}
});
return obj;
}
var obj;
obj = getCleanObj();
assert.sameValue([].includes.call(obj, "tc39"), true, "'tc39' is true");
obj = getCleanObj();
assert.sameValue([].includes.call(obj, "ecma262"), true, "'ecma262' is true");
obj = getCleanObj();
assert.sameValue([].includes.call(obj, "cake"), false, "'cake' is false");
assert.sameValue(obj[2], "cake", "'2' is set");