mirror of
https://github.com/jerryscript-project/jerryscript.git
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72 lines
2.1 KiB
JavaScript
72 lines
2.1 KiB
JavaScript
// Copyright JS Foundation and other contributors, http://js.foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// This test will not pass on FLOAT32 due to precision issues
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var obj = {};
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var array = ["foo", 19, "bar", obj, "foo", 29, "baz"];
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var index = array.lastIndexOf("foo");
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assert(index === 4);
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assert(array[index] === "foo");
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assert(array.lastIndexOf("foo", 3) === 0);
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assert(array.lastIndexOf("foo", -8) === -1);
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var index = array.lastIndexOf("baz");
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assert(index === 6);
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assert(array[index] === "baz");
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assert(array.lastIndexOf("baz", -2) === -1);
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var index = array.lastIndexOf(obj);
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assert(index === 3);
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assert(array[index] === obj);
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assert(array.lastIndexOf("foo", NaN) === 0);
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assert(array.lastIndexOf("foo", Infinity) === 4);
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assert(array.lastIndexOf("foo", -Infinity) === -1);
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var arr = [];
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arr[4294967294] = "foo";
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assert(arr.lastIndexOf("foo", -1) === 4294967294)
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var arr = [1,2];
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assert(arr.lastIndexOf(2, undefined) === -1);
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assert(arr.lastIndexOf(2) === 1);
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// Checking behavior when unable to get length
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var obj = { lastIndexOf : Array.prototype.lastIndexOf}
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Object.defineProperty(obj, 'length', { 'get' : function () { throw new ReferenceError ("foo"); } });
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try {
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obj.lastIndexOf("bar");
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assert(false);
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} catch (e) {
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assert(e.message === "foo");
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assert(e instanceof ReferenceError);
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}
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// Checking behavior when unable to get element
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var obj = { lastIndexOf : Array.prototype.lastIndexOf, length : 1}
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Object.defineProperty(obj, '0', { 'get' : function () { throw new ReferenceError ("foo"); } });
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try {
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obj.lastIndexOf("bar");
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assert(false);
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} catch (e) {
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assert(e.message === "foo");
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assert(e instanceof ReferenceError);
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}
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