// Copyright 2016 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Flags: --allow-natives-syntax // Ensure `Array.prototype.includes` functions correctly for numerous elements // kinds, and various exotic receiver types, // TODO(caitp): update kIterCount to a high enough number to trigger inlining, // once inlining this builtin is supported var kIterCount = 1; var kTests = { Array: { FAST_ELEMENTS() { var r = /foo/; var s = new String("bar"); var p = new Proxy({}, {}); var o = {}; var array = [r, s, p]; assertTrue(%HasFastObjectElements(array)); assertFalse(%HasFastHoleyElements(array)); for (var i = 0; i < kIterCount; ++i) { assertTrue(array.includes(p)); assertFalse(array.includes(o)); } }, FAST_HOLEY_ELEMENTS() { var r = /foo/; var p = new Proxy({}, {}); var o = {}; var array = [r, , p]; assertTrue(%HasFastObjectElements(array)); assertTrue(%HasFastHoleyElements(array)); for (var i = 0; i < kIterCount; ++i) { assertTrue(array.includes(p)); assertFalse(array.includes(o)); } }, FAST_SMI_ELEMENTS() { var array = [0, 88, 9999, 1, -5, 7]; assertTrue(%HasFastSmiElements(array)); assertFalse(%HasFastHoleyElements(array)); for (var i = 0; i < kIterCount; ++i) { assertTrue(array.includes(9999)); assertTrue(array.includes(-5)); assertFalse(array.includes(-5.00001)); assertFalse(array.includes(undefined)); assertFalse(array.includes(NaN)); } }, FAST_HOLEY_SMI_ELEMENTS() { var array = [49, , , 72, , , 67, -48]; assertTrue(%HasFastSmiElements(array)); assertTrue(%HasFastHoleyElements(array)); for (var i = 0; i < kIterCount; ++i) { assertTrue(array.includes(72)); assertTrue(array.includes(-48)); assertFalse(array.includes(72, 4)); assertTrue(array.includes(undefined)); assertFalse(array.includes(undefined, -2)); assertFalse(array.includes(NaN)); } }, FAST_DOUBLE_ELEMENTS() { var array = [7.00000001, -13000.89412, 73451.4124, 5824.48, 6.0000495, 48.3488, 44.0, 76.35, NaN, 78.4]; assertTrue(%HasFastDoubleElements(array)); assertFalse(%HasFastHoleyElements(array)); for (var i = 0; i < kIterCount; ++i) { assertTrue(array.includes(7.00000001)); assertFalse(array.includes(7.00000001, 2)); assertTrue(array.includes(NaN)); assertFalse(array.includes(NaN, -1)); assertTrue(array.includes(-13000.89412)); assertFalse(array.includes(-13000.89412, -2)); assertFalse(array.includes(undefined)); } }, FAST_HOLEY_DOUBLE_ELEMENTS() { var array = [7.00000001, -13000.89412, , 5824.48, , 48.3488, , NaN, , 78.4]; assertTrue(%HasFastDoubleElements(array)); assertTrue(%HasFastHoleyElements(array)); for (var i = 0; i < kIterCount; ++i) { assertTrue(array.includes(7.00000001)); assertFalse(array.includes(7.00000001, 2)); assertTrue(array.includes(NaN)); assertFalse(array.includes(NaN, -2)); assertTrue(array.includes(-13000.89412)); assertFalse(array.includes(-13000.89412, -2)); assertTrue(array.includes(undefined, -2)); assertFalse(array.includes(undefined, -1)); } }, DICTIONARY_ELEMENTS() { var array = []; Object.defineProperty(array, 4, { get() { return NaN; } }); Object.defineProperty(array, 7, { value: Function }); assertTrue(%HasDictionaryElements(array)); for (var i = 0; i < kIterCount; ++i) { assertTrue(array.includes(NaN)); assertFalse(array.includes(NaN, -3)); assertTrue(array.includes(Function)); assertTrue(array.includes(undefined)); assertFalse(array.includes(undefined, 7)); } }, }, Object: { FAST_ELEMENTS() { var r = /foo/; var s = new String("bar"); var p = new Proxy({}, {}); var o = {}; var object = { 0: r, 1: s, 2: p, length: 3 }; assertTrue(%HasFastObjectElements(object)); // TODO(caitp): JSObjects always seem to start with FAST_HOLEY_ELEMENTS // assertFalse(%HasFastHoleyElements(object)); for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call(object, p)); assertFalse(Array.prototype.includes.call(object, o)); } }, FAST_HOLEY_ELEMENTS() { var r = /foo/; var p = new Proxy({}, {}); var o = {}; var object = { 0: r, 2: p, length: 3 }; assertTrue(%HasFastObjectElements(object)); assertTrue(%HasFastHoleyElements(object)); for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call(object, p)); assertFalse(Array.prototype.includes.call(object, o)); } }, FAST_SMI_ELEMENTS() { var object = { 0: 0, 1: 88, 2: 9999, 3: 1, 4: -5, 5: 7, length: 6 }; // TODO(caitp): JSObjects always seem to start with FAST_HOLEY_ELEMENTS // assertTrue(%HasFastSmiElements(object)); // assertFalse(%HasFastHoleyElements(object)); for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call(object, 9999)); assertTrue(Array.prototype.includes.call(object, -5)); assertFalse(Array.prototype.includes.call(object, -5.00001)); assertFalse(Array.prototype.includes.call(object, undefined)); assertFalse(Array.prototype.includes.call(object, NaN)); } }, FAST_HOLEY_SMI_ELEMENTS() { var object = { 0: 49, 3: 72, 6: 67, 7: -48, length: 8 }; // TODO(caitp): JSObjects always seem to start with FAST_HOLEY_ELEMENTS // assertTrue(%HasFastSmiElements(object)); // assertTrue(%HasFastHoleyElements(object)); for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call(object, 72)); assertTrue(Array.prototype.includes.call(object, -48)); assertFalse(Array.prototype.includes.call(object, 72, 4)); assertTrue(Array.prototype.includes.call(object, undefined)); assertFalse(Array.prototype.includes.call(object, undefined, -2)); assertFalse(Array.prototype.includes.call(object, NaN)); } }, FAST_DOUBLE_ELEMENTS() { var object = { 0: 7.00000001, 1: -13000.89412, 2: 73451.4124, 3: 5824.48, 4: 6.0000495, 5: 48.3488, 6: 44.0, 7: 76.35, 8: NaN, 9: 78.4, length: 10 }; // TODO(caitp): JSObjects always seem to start with FAST_HOLEY_ELEMENTS // assertTrue(%HasFastDoubleElements(object)); // assertFalse(%HasFastHoleyElements(object)); for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call(object, 7.00000001)); assertFalse(Array.prototype.includes.call(object, 7.00000001, 2)); assertTrue(Array.prototype.includes.call(object, NaN)); assertFalse(Array.prototype.includes.call(object, NaN, -1)); assertTrue(Array.prototype.includes.call(object, -13000.89412)); assertFalse(Array.prototype.includes.call(object, -13000.89412, -2)); assertFalse(Array.prototype.includes.call(object, undefined)); } }, FAST_HOLEY_DOUBLE_ELEMENTS() { var object = { 0: 7.00000001, 1: -13000.89412, 3: 5824.48, 5: 48.3488, 7: NaN, 9: 78.4, length: 10 }; // TODO(caitp): JSObjects always seem to start with FAST_HOLEY_ELEMENTS // assertTrue(%HasFastDoubleElements(object)); // assertTrue(%HasFastHoleyElements(object)); for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call(object, 7.00000001)); assertFalse(Array.prototype.includes.call(object, 7.00000001, 2)); assertTrue(Array.prototype.includes.call(object, NaN)); assertFalse(Array.prototype.includes.call(object, NaN, -2)); assertTrue(Array.prototype.includes.call(object, -13000.89412)); assertFalse(Array.prototype.includes.call(object, -13000.89412, -2)); assertTrue(Array.prototype.includes.call(object, undefined, -2)); assertFalse(Array.prototype.includes.call(object, undefined, -1)); } }, DICTIONARY_ELEMENTS() { var object = { length: 8 }; Object.defineProperty(object, 4, { get() { return NaN; } }); Object.defineProperty(object, 7, { value: Function }); assertTrue(%HasDictionaryElements(object)); for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call(object, NaN)); assertFalse(Array.prototype.includes.call(object, NaN, -3)); assertTrue(Array.prototype.includes.call(object, Function)); assertTrue(Array.prototype.includes.call(object, undefined)); assertFalse(Array.prototype.includes.call(object, undefined, 7)); } (function prototypeModifiedDuringAccessor() { function O() { return { __proto__: {}, get 0() { this.__proto__.__proto__ = { get 1() { this[2] = "c"; return "b"; } }; return "a"; }, length: 3 }; } // Switch to slow path when first accessor modifies the prototype assertTrue(Array.prototype.includes.call(O(), "a")); assertTrue(Array.prototype.includes.call(O(), "b")); assertTrue(Array.prototype.includes.call(O(), "c")); // Avoid switching to slow path due to avoiding the accessor assertFalse(Array.prototype.includes.call(O(), "c", 2)); assertFalse(Array.prototype.includes.call(O(), "b", 1)); assertTrue(Array.prototype.includes.call(O(), undefined, 1)); }); }, }, String: { FAST_STRING_ELEMENTS() { for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call("froyo", "y")); assertFalse(Array.prototype.includes.call("froyo", "y", -1)); assertTrue(Array.prototype.includes.call("froyo", "y", -2)); assertFalse(Array.prototype.includes.call("froyo", NaN)); assertFalse(Array.prototype.includes.call("froyo", undefined)); } }, SLOW_STRING_ELEMENTS() { var string = new String("froyo"); // Never accessible from A.p.includes as 'length' is not configurable Object.defineProperty(string, 34, { value: NaN }); Object.defineProperty(string, 12, { get() { return "nope" } }); for (var i = 0; i < kIterCount; ++i) { assertTrue(Array.prototype.includes.call("froyo", "y")); assertFalse(Array.prototype.includes.call("froyo", "y", -1)); assertTrue(Array.prototype.includes.call("froyo", "y", -2)); assertFalse(Array.prototype.includes.call(string, NaN)); assertFalse(Array.prototype.includes.call(string, undefined)); assertFalse(Array.prototype.includes.call(string, "nope")); } }, }, Arguments: { FAST_SLOPPY_ARGUMENTS_ELEMENTS() { var args = (function(a, b) { return arguments; })("foo", NaN, "bar"); assertTrue(%HasSloppyArgumentsElements(args)); for (var i = 0; i < kIterCount; ++i) { assertFalse(Array.prototype.includes.call(args, undefined)); assertTrue(Array.prototype.includes.call(args, NaN)); assertFalse(Array.prototype.includes.call(args, NaN, -1)); assertTrue(Array.prototype.includes.call(args, "bar", -1)); } }, SLOW_SLOPPY_ARGUMENTS_ELEMENTS() { var args = (function(a, a) { return arguments; })("foo", NaN, "bar"); Object.defineProperty(args, 3, { get() { return "silver"; } }); Object.defineProperty(args, "length", { value: 4 }); assertTrue(%HasSloppyArgumentsElements(args)); for (var i = 0; i < kIterCount; ++i) { assertFalse(Array.prototype.includes.call(args, undefined)); assertTrue(Array.prototype.includes.call(args, NaN)); assertFalse(Array.prototype.includes.call(args, NaN, -2)); assertTrue(Array.prototype.includes.call(args, "bar", -2)); assertTrue(Array.prototype.includes.call(args, "silver", -1)); } } }, TypedArray: { Int8Array() { var array = new Int8Array([-129, 128, NaN /* 0 */, +0 /* 0 */, -0 /* 0 */, +Infinity /* 0 */, -Infinity /* 0 */, 255 /* -1 */, 127 /* 127 */, -255 /* 1 */]); assertFalse(Array.prototype.includes.call(array, -129)); assertFalse(Array.prototype.includes.call(array, 128)); assertTrue(Array.prototype.includes.call(array, 0, 2)); assertTrue(Array.prototype.includes.call(array, 0, 3)); assertTrue(Array.prototype.includes.call(array, 0, 4)); assertTrue(Array.prototype.includes.call(array, 0, 5)); assertTrue(Array.prototype.includes.call(array, 0, 6)); assertFalse(Array.prototype.includes.call(array, 0, 7)); assertTrue(Array.prototype.includes.call(array, -1, 7)); assertFalse(Array.prototype.includes.call(array, -1, 8)); assertTrue(Array.prototype.includes.call(array, 127, 8)); assertFalse(Array.prototype.includes.call(array, 127, 9)); assertTrue(Array.prototype.includes.call(array, 1, 9)); }, Detached_Int8Array() { var array = new Int8Array(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, Uint8Array() { var array = new Uint8Array([-1, 256, NaN /* 0 */, +0 /* 0 */, -0 /* 0 */, +Infinity /* 0 */, -Infinity /* 0 */, 255 /* 255 */, 257 /* 1 */, -128 /* 128 */, -2 /* 254 */]); assertFalse(Array.prototype.includes.call(array, -1)); assertFalse(Array.prototype.includes.call(array, 256)); assertTrue(Array.prototype.includes.call(array, 0, 2)); assertTrue(Array.prototype.includes.call(array, 0, 3)); assertTrue(Array.prototype.includes.call(array, 0, 4)); assertTrue(Array.prototype.includes.call(array, 0, 5)); assertTrue(Array.prototype.includes.call(array, 0, 6)); assertFalse(Array.prototype.includes.call(array, 0, 7)); assertTrue(Array.prototype.includes.call(array, 255, 7)); assertFalse(Array.prototype.includes.call(array, 255, 8)); assertTrue(Array.prototype.includes.call(array, 1, 8)); assertFalse(Array.prototype.includes.call(array, 1, 9)); assertTrue(Array.prototype.includes.call(array, 128, 9)); assertFalse(Array.prototype.includes.call(array, 128, 10)); assertTrue(Array.prototype.includes.call(array, 254, 10)); }, Detached_Uint8Array() { var array = new Uint8Array(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, Uint8ClampedArray() { var array = new Uint8ClampedArray([-1 /* 0 */, NaN /* 0 */, 256 /* 255 */, 127.6 /* 128 */, 127.4 /* 127 */, 121.5 /* 122 */, 124.5 /* 124 */]); assertFalse(Array.prototype.includes.call(array, -1)); assertFalse(Array.prototype.includes.call(array, 256)); assertTrue(Array.prototype.includes.call(array, 0)); assertTrue(Array.prototype.includes.call(array, 0, 1)); assertTrue(Array.prototype.includes.call(array, 255, 2)); assertTrue(Array.prototype.includes.call(array, 128, 3)); assertFalse(Array.prototype.includes.call(array, 128, 4)); assertTrue(Array.prototype.includes.call(array, 127, 4)); assertFalse(Array.prototype.includes.call(array, 127, 5)); assertTrue(Array.prototype.includes.call(array, 122, 5)); assertFalse(Array.prototype.includes.call(array, 122, 6)); assertTrue(Array.prototype.includes.call(array, 124, 6)); }, Detached_Uint8ClampedArray() { var array = new Uint8ClampedArray(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, Int16Array() { var array = new Int16Array([-32769, 32768, NaN /* 0 */, Infinity /* 0 */, -Infinity /* 0 */, -0 /* 0 */, +0 /* 0 */, 0x7FFFF /* -1 */, 30000 /* 30000 */, 300000 /* -27680 */]); assertFalse(Array.prototype.includes.call(array, -32769)); assertFalse(Array.prototype.includes.call(array, 32768)); assertTrue(Array.prototype.includes.call(array, 0, 2)); assertTrue(Array.prototype.includes.call(array, 0, 3)); assertTrue(Array.prototype.includes.call(array, 0, 4)); assertTrue(Array.prototype.includes.call(array, 0, 5)); assertTrue(Array.prototype.includes.call(array, 0, 6)); assertFalse(Array.prototype.includes.call(array, 0, 7)); assertTrue(Array.prototype.includes.call(array, -1, 7)); assertFalse(Array.prototype.includes.call(array, -1, 8)); assertTrue(Array.prototype.includes.call(array, 30000, 8)); assertFalse(Array.prototype.includes.call(array, 30000, 9)); assertTrue(Array.prototype.includes.call(array, -27680, 9)); }, Detached_Int16Array() { var array = new Int16Array(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, Uint16Array() { var array = new Uint16Array([-1, 65536, NaN /* 0 */, Infinity /* 0 */, -Infinity /* 0 */, -0 /* 0 */, +0 /* 0 */, 0x7FFFF /* 65535 */, 300000 /* 37856 */, 3000000 /* 50880 */]); assertFalse(Array.prototype.includes.call(array, -1)); assertFalse(Array.prototype.includes.call(array, 65536)); assertTrue(Array.prototype.includes.call(array, 0, 2)); assertTrue(Array.prototype.includes.call(array, 0, 3)); assertTrue(Array.prototype.includes.call(array, 0, 4)); assertTrue(Array.prototype.includes.call(array, 0, 5)); assertTrue(Array.prototype.includes.call(array, 0, 6)); assertFalse(Array.prototype.includes.call(array, 0, 7)); assertTrue(Array.prototype.includes.call(array, 65535, 7)); assertFalse(Array.prototype.includes.call(array, 65535, 8)); assertTrue(Array.prototype.includes.call(array, 37856, 8)); assertFalse(Array.prototype.includes.call(array, 37856, 9)); assertTrue(Array.prototype.includes.call(array, 50880, 9)); }, Detached_Uint16Array() { var array = new Uint16Array(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, Int32Array() { var array = new Int32Array([-2147483649, 2147483648, NaN /* 0 */, Infinity /* 0 */, -Infinity /* 0 */, -0 /* 0 */, +0 /* 0 */, 0x7FFFFFFFF /* -1 */, 4294968064 /* 768 */, 4294959447 /* -7849 */]); assertFalse(Array.prototype.includes.call(array, -2147483649)); assertFalse(Array.prototype.includes.call(array, 2147483648)); assertTrue(Array.prototype.includes.call(array, 0.0, 2)); assertTrue(Array.prototype.includes.call(array, 0.0, 3)); assertTrue(Array.prototype.includes.call(array, 0, 4)); assertTrue(Array.prototype.includes.call(array, 0, 5)); assertTrue(Array.prototype.includes.call(array, 0.0, 6)); assertFalse(Array.prototype.includes.call(array, 0.0, 7)); assertTrue(Array.prototype.includes.call(array, -1, 7)); assertFalse(Array.prototype.includes.call(array, -1, 8)); assertTrue(Array.prototype.includes.call(array, 768, 8)); assertFalse(Array.prototype.includes.call(array, 768, 9)); assertTrue(Array.prototype.includes.call(array, -7849, 9)); }, Detached_Int32Array() { var array = new Int32Array(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, Uint32Array() { var array = new Uint32Array([-1, 4294967296, NaN /* 0 */, Infinity /* 0 */, -Infinity /* 0 */, -0 /* 0 */, +0 /* 0 */, 0x7FFFFFFFF /* 4294967295 */, 4294968064 /* 768 */, 4295079447 /* 112151 */]); assertFalse(Array.prototype.includes.call(array, -1)); assertFalse(Array.prototype.includes.call(array, 4294967296)); assertTrue(Array.prototype.includes.call(array, 0.0, 2)); assertTrue(Array.prototype.includes.call(array, 0.0, 3)); assertTrue(Array.prototype.includes.call(array, 0, 4)); assertTrue(Array.prototype.includes.call(array, 0, 5)); assertTrue(Array.prototype.includes.call(array, 0.0, 6)); assertFalse(Array.prototype.includes.call(array, 0.0, 7)); assertTrue(Array.prototype.includes.call(array, 4294967295, 7)); assertFalse(Array.prototype.includes.call(array, 4294967295, 8)); assertTrue(Array.prototype.includes.call(array, 768, 8)); assertFalse(Array.prototype.includes.call(array, 768, 9)); assertTrue(Array.prototype.includes.call(array, 112151, 9)); }, Detached_Uint32Array() { var array = new Uint32Array(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, Float32Array() { var array = new Float32Array([-1, 4294967296, NaN, Infinity /* 0 */, -Infinity /* 0 */, -0 /* 0 */, +0 /* 0 */, 0x7FFFFFFFF /* 34359738368.0 */, -4294968064 /* -4294968320.0 */, 4295079447 /* 4295079424.0 */]); assertTrue(Array.prototype.includes.call(array, -1.0)); assertTrue(Array.prototype.includes.call(array, 4294967296)); assertTrue(Array.prototype.includes.call(array, NaN, 2)); assertTrue(Array.prototype.includes.call(array, Infinity, 3)); assertTrue(Array.prototype.includes.call(array, -Infinity, 4)); assertTrue(Array.prototype.includes.call(array, 0, 5)); assertTrue(Array.prototype.includes.call(array, 0, 6)); assertFalse(Array.prototype.includes.call(array, 0.0, 7)); assertTrue(Array.prototype.includes.call(array, 34359738368.0, 7)); assertFalse(Array.prototype.includes.call(array, 34359738368.0, 8)); assertTrue(Array.prototype.includes.call(array, -4294968320.0, 8)); assertFalse(Array.prototype.includes.call(array, -4294968320.0, 9)); assertTrue(Array.prototype.includes.call(array, 4295079424.0, 9)); }, Detached_Float32Array() { var array = new Float32Array(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, Float64Array() { var array = new Float64Array([-1, 4294967296, NaN, Infinity /* 0 */, -Infinity /* 0 */, -0 /* 0 */, +0 /* 0 */, 0x7FFFFFFFF /* 34359738367.0 */, -4294968064 /* -4294968064.0 */, 4295079447 /* 4295079447.0 */]); assertTrue(Array.prototype.includes.call(array, -1.0)); assertTrue(Array.prototype.includes.call(array, 4294967296)); assertTrue(Array.prototype.includes.call(array, NaN, 2)); assertTrue(Array.prototype.includes.call(array, Infinity, 3)); assertTrue(Array.prototype.includes.call(array, -Infinity, 4)); assertTrue(Array.prototype.includes.call(array, 0, 5)); assertTrue(Array.prototype.includes.call(array, 0, 6)); assertFalse(Array.prototype.includes.call(array, 0.0, 7)); assertTrue(Array.prototype.includes.call(array, 34359738367.0, 7)); assertFalse(Array.prototype.includes.call(array, 34359738367.0, 8)); assertTrue(Array.prototype.includes.call(array, -4294968064.0, 8)); assertFalse(Array.prototype.includes.call(array, -4294968064.0, 9)); assertTrue(Array.prototype.includes.call(array, 4295079447.0, 9)); }, Detached_Float64Array() { var array = new Float32Array(10); %ArrayBufferNeuter(array.buffer); assertFalse(Array.prototype.includes.call(array, 0)); assertFalse(Array.prototype.includes.call(array, 0, 10)); }, } }; function runSuites(suites) { Object.keys(suites).forEach(suite => runSuite(suites[suite])); function runSuite(suite) { Object.keys(suite).forEach(test => suite[test]()); } } runSuites(kTests);