mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
113 lines
3.1 KiB
JavaScript
113 lines
3.1 KiB
JavaScript
// Copyright JS Foundation and other contributors, http://js.foundation
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// This test will not pass on FLOAT32 due to precision issues
|
|
|
|
var array = [54, undefined, "Lemon", -127];
|
|
|
|
var array1 = array.slice();
|
|
var array2 = array.slice("a", "3");
|
|
var array3 = array.slice(-2);
|
|
var array4 = array.slice(-12, undefined);
|
|
var array5 = array.slice(undefined, -3);
|
|
var array6 = array.slice(Infinity, NaN);
|
|
var array7 = array.slice(-Infinity, Infinity);
|
|
var array8 = array.slice(NaN, -Infinity);
|
|
|
|
assert (array1.length == 4);
|
|
assert (array1[0] == 54);
|
|
assert (array1[1] == undefined);
|
|
assert (array1[2] == "Lemon");
|
|
assert (array1[3] == -127);
|
|
|
|
assert (array2.length == 3);
|
|
assert (array2[0] == 54);
|
|
assert (array2[1] == undefined);
|
|
assert (array2[2] == "Lemon");
|
|
|
|
assert (array3.length == 2);
|
|
assert (array3[0] == "Lemon");
|
|
assert (array3[1] == -127);
|
|
|
|
assert (array4.length == 4);
|
|
assert (array4[0] == 54);
|
|
assert (array4[1] == undefined);
|
|
assert (array4[2] == "Lemon");
|
|
assert (array4[3] == -127);
|
|
|
|
assert (array5.length == 1);
|
|
assert (array5[0] == 54);
|
|
|
|
assert (array6.length == 0);
|
|
|
|
assert (array7.length == 4);
|
|
assert (array7[0] == 54);
|
|
assert (array7[1] == undefined);
|
|
assert (array7[2] == "Lemon");
|
|
assert (array7[3] == -127);
|
|
|
|
assert (array8.length == 0);
|
|
|
|
var array = [];
|
|
array[4294967293] = "foo";
|
|
array.length = 4294967295;
|
|
var result = array.slice(4294967293, -1)
|
|
assert(result.length === 1)
|
|
assert(result[0] === "foo")
|
|
|
|
array[0] = "bar";
|
|
var result = array.slice(-4294967295, -4294967294)
|
|
assert(result.length === 1)
|
|
assert(result[0] === "bar")
|
|
|
|
var array = [];
|
|
array[0] = "foo";
|
|
var result = array.slice(4294967296, 4294967297);
|
|
assert(result.length === 0);
|
|
|
|
array[4294967293] = "bar";
|
|
var result = array.slice(-4294967297, -4294967296);
|
|
assert(result.length === 0);
|
|
|
|
var arr = [1,2];
|
|
Array.prototype[0] = 3;
|
|
var newArr = arr.slice(0, 1);
|
|
delete Array.prototype[0];
|
|
assert(newArr.hasOwnProperty("0"));
|
|
assert(newArr[0] === 1);
|
|
|
|
// Checking behavior when unable to get length
|
|
var obj = { slice : Array.prototype.slice };
|
|
Object.defineProperty(obj, 'length', { 'get' : function () { throw new ReferenceError ("foo"); } });
|
|
|
|
try {
|
|
obj.slice(1, 2);
|
|
assert (false);
|
|
} catch (e) {
|
|
assert (e.message === "foo");
|
|
assert (e instanceof ReferenceError);
|
|
}
|
|
|
|
// Checking behavior when unable to get element
|
|
var obj = { length : 1, slice : Array.prototype.slice };
|
|
Object.defineProperty(obj, '0', { 'get' : function () { throw new ReferenceError ("foo"); } });
|
|
|
|
try {
|
|
obj.slice(0, 1);
|
|
assert (false);
|
|
} catch (e) {
|
|
assert (e.message === "foo");
|
|
assert (e instanceof ReferenceError);
|
|
}
|