mirror of
https://github.com/jerryscript-project/jerryscript.git
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102 lines
3.3 KiB
JavaScript
102 lines
3.3 KiB
JavaScript
// Copyright 2015 Samsung Electronics Co., Ltd.
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// Copyright 2015 University of Szeged.
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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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// check properties
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assert(Object.getOwnPropertyDescriptor(String.prototype.lastIndexOf, 'length').configurable === false);
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assert(Object.getOwnPropertyDescriptor(String.prototype.lastIndexOf, 'length').enumerable === false);
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assert(Object.getOwnPropertyDescriptor(String.prototype.lastIndexOf, 'length').writable === false);
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assert(String.prototype.lastIndexOf.length === 1);
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// simple checks
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assert("Hello welcome, welcome to the universe.".lastIndexOf("welcome") === 15);
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assert("Hello world, welcome to the universe.".lastIndexOf("Hello world, welcome to the universe.") === 0);
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assert("Hello welcome, welcome to the universe.".lastIndexOf("welcome", 5) === -1);
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assert("Hello welcome, welcome to the universe.".lastIndexOf("welcome", -100) == -1);
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assert("Hello welcome, welcome to the universe.".lastIndexOf("welcome", 15) === 15);
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assert("Hello welcome, welcome to the universe o.".lastIndexOf("o", 10) === 10);
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assert("Hello welcome, welcome to the universe o.".lastIndexOf("o", 25) === 24);
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assert("Helloooo woooorld".lastIndexOf("oooo", 6) === 4);
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// check empty string
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assert(String.prototype.lastIndexOf.call(new String()) === -1);
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assert(String.prototype.lastIndexOf.call("Hello world, welcome to the universe.","") === 37);
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assert(String.prototype.lastIndexOf.call("","") === 0);
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// check NaN
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assert("Hello world, welcome to the universe.".lastIndexOf(NaN) === -1);
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assert("Hello world, welcome to the universe.".lastIndexOf("o", NaN) === 22);
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// check Object
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assert(String.prototype.lastIndexOf.call({}) === -1);
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// check +-Inf
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assert("hello world!".lastIndexOf("world", -Infinity) === -1);
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assert("hello world!".lastIndexOf("world", Infinity) === 6);
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// check numbers
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assert("hello world!".lastIndexOf(-1) === -1);
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assert("hello 0 world!".lastIndexOf(-0) === 6);
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// check undefined
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assert("hello world!".lastIndexOf(undefined) === -1);
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var undefined_var;
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assert("Hello world, welcome to the universe.".lastIndexOf("welcome", undefined_var) === 13);
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// check booleans
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assert("true".lastIndexOf(true, false) === 0);
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// check coercible - undefined
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try {
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assert(String.prototype.lastIndexOf.call(undefined) === -1);
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assert(false);
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} catch(e) {
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assert(e instanceof TypeError);
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}
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// check coercible - null
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try {
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assert(String.prototype.lastIndexOf.call(null, 0) === -1);
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assert(false);
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} catch (e) {
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assert(e instanceof TypeError);
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}
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// check coercible - Boolean
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assert(String.prototype.lastIndexOf.call(true, "e") === 3);
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assert(String.prototype.lastIndexOf.call(false, "e") === 4);
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// check coercible - Object
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var test_object = {firstName:"John", lastName:"Doe"};
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assert(String.prototype.lastIndexOf.call(test_object, "Obj") === 8);
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// check coercible - Number
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assert(String.prototype.lastIndexOf.call(123, "2") === 1);
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