mirror of
https://github.com/jerryscript-project/jerryscript.git
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70 lines
2.0 KiB
JavaScript
70 lines
2.0 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.trim, 'length').configurable === false);
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assert(Object.getOwnPropertyDescriptor(String.prototype.trim, 'length').enumerable === false);
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assert(Object.getOwnPropertyDescriptor(String.prototype.trim, 'length').writable === false);
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assert(String.prototype.trim.length === 0);
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// check this value
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assert(String.prototype.trim.call(new String()) === "");
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assert(String.prototype.trim.call({}) === "[object Object]");
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// check undefined
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try {
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String.prototype.trim.call(undefined);
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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 null
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try {
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String.prototype.trim.call(null);
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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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// simple checks
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assert(" hello world".trim() === "hello world");
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assert("hello world ".trim() === "hello world");
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assert(" hello world ".trim() === "hello world");
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assert("\t hello world\n".trim() === "hello world");
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assert("\t\n hello world\t \n ".trim() === "hello world");
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assert("hello world\n \t\t".trim() === "hello world");
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assert(" hello world \\ ".trim() === "hello world \\");
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assert("**hello world**".trim() === "**hello world**");
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assert(" \t \n".trim() === "");
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assert(" ".trim() === "");
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assert("".trim() === "");
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// FIXME: add unicode tests when unicode support available
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