| /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* Any copyright is dedicated to the Public Domain. |
| * http://creativecommons.org/licenses/publicdomain/ */ |
| |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = 911147; |
| var summary = 'Array.prototype.fill'; |
| |
| print(BUGNUMBER + ": " + summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| assertEq(typeof [].fill, 'function'); |
| assertEq([].fill.length, 1); |
| |
| // Default values for arguments and absolute values for negative start and end |
| // arguments are resolved correctly. |
| assertDeepEq([].fill(1), []); |
| assertDeepEq([1,1,1].fill(2), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, 1), [1,2,2]); |
| assertDeepEq([1,1,1].fill(2, 1, 2), [1,2,1]); |
| assertDeepEq([1,1,1].fill(2, -2), [1,2,2]); |
| assertDeepEq([1,1,1].fill(2, -2, -1), [1,2,1]); |
| assertDeepEq([1,1,1].fill(2, undefined), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, undefined, undefined), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, 1, undefined), [1,2,2]); |
| assertDeepEq([1,1,1].fill(2, undefined, 1), [2,1,1]); |
| assertDeepEq([1,1,1].fill(2, 2, 1), [1,1,1]); |
| assertDeepEq([1,1,1].fill(2, -1, 1), [1,1,1]); |
| assertDeepEq([1,1,1].fill(2, -2, 1), [1,1,1]); |
| assertDeepEq([1,1,1].fill(2, 1, -2), [1,1,1]); |
| assertDeepEq([1,1,1].fill(2, 0.1), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, 0.9), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, 1.1), [1,2,2]); |
| assertDeepEq([1,1,1].fill(2, 0.1, 0.9), [1,1,1]); |
| assertDeepEq([1,1,1].fill(2, 0.1, 1.9), [2,1,1]); |
| assertDeepEq([1,1,1].fill(2, 0.1, 1.9), [2,1,1]); |
| assertDeepEq([1,1,1].fill(2, -0), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, 0, -0), [1,1,1]); |
| assertDeepEq([1,1,1].fill(2, NaN), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, 0, NaN), [1,1,1]); |
| assertDeepEq([1,1,1].fill(2, false), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, true), [1,2,2]); |
| assertDeepEq([1,1,1].fill(2, "0"), [2,2,2]); |
| assertDeepEq([1,1,1].fill(2, "1"), [1,2,2]); |
| assertDeepEq([1,1,1].fill(2, "-2"), [1,2,2]); |
| assertDeepEq([1,1,1].fill(2, "-2", "-1"), [1,2,1]); |
| assertDeepEq([1,1,1].fill(2, {valueOf: ()=>1}), [1,2,2]); |
| assertDeepEq([1,1,1].fill(2, 0, {valueOf: ()=>1}), [2,1,1]); |
| |
| // fill works generically for objects, too. |
| assertDeepEq([].fill.call({length: 2}, 2), {0: 2, 1: 2, length: 2}); |
| |
| var setterCalled = false; |
| var objWithSetter = {set "0"(val) { setterCalled = true}, length: 1}; |
| [].fill.call(objWithSetter, 2); |
| assertEq(setterCalled, true); |
| |
| var setHandlerCallCount = 0; |
| var proxy = new Proxy({length: 3}, {set(t, i, v, r) { setHandlerCallCount++; return true; }}); |
| [].fill.call(proxy, 2); |
| assertEq(setHandlerCallCount, 3); |
| |
| var valueOfCallCount = 0; |
| var typedArray = new Uint8ClampedArray(3); |
| [].fill.call(typedArray, {valueOf: function() {valueOfCallCount++; return 2000;}}); |
| assertEq(valueOfCallCount, 3); |
| assertEq(typedArray[0], 0xff); |
| |
| // All remaining cases should throw. |
| var objWithGetterOnly = {get "0"() {return 1;}, length: 1}; |
| |
| var objWithReadOnlyProp = {length: 1}; |
| Object.defineProperty(objWithReadOnlyProp, 0, {value: 1, writable: false}); |
| |
| var objWithNonconfigurableProp = {length: 1}; |
| Object.defineProperty(objWithNonconfigurableProp, 0, {value: 1, configurable: false}); |
| |
| var frozenObj = {length: 1}; |
| Object.freeze(frozenObj); |
| |
| var frozenArray = [1, 1, 1]; |
| Object.freeze(frozenArray); |
| |
| assertThrowsInstanceOf(() => [].fill.call(objWithGetterOnly, 2), TypeError); |
| assertThrowsInstanceOf(() => [].fill.call(objWithReadOnlyProp, 2), TypeError); |
| assertThrowsInstanceOf(() => [].fill.call(objWithNonconfigurableProp, 2), TypeError); |
| assertThrowsInstanceOf(() => [].fill.call(frozenObj, 2), TypeError); |
| assertThrowsInstanceOf(() => [].fill.call(frozenArray, 2), TypeError); |
| assertThrowsInstanceOf(() => [].fill.call("111", 2), TypeError); |
| assertThrowsInstanceOf(() => [].fill.call(null, 2), TypeError); |
| assertThrowsInstanceOf(() => [].fill.call(undefined, 2), TypeError); |
| |
| if (typeof reportCompare === "function") |
| reportCompare(true, true); |