mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
0511091e8a
Since the project is now hosted at the JS Foundation we can move to unified copyright notices for the project. Starting with this commit all future contributions to the project should only carry the following copyright notice (except for third-party code which requires copyright information to be preserved): "Copyright JS Foundation and other contributors, http://js.foundation" (without the quotes) This avoids cluttering the codebase with contributor-specific copyright notices which have a higher maintenance overhead and tend to get outdated quickly. Also dropping the year from the copyright notices helps to avoid yearly code changes just to update the copyright notices. Note that each contributor still retains full copyright ownership of his/her contributions and the respective authorship is tracked very accurately via Git. JerryScript-DCO-1.0-Signed-off-by: Tilmann Scheller t.scheller@samsung.com
139 lines
3.6 KiB
JavaScript
139 lines
3.6 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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// check properties
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assert(Object.getOwnPropertyDescriptor(String.prototype.substr, 'length').configurable === false);
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assert(Object.getOwnPropertyDescriptor(String.prototype.substr, 'length').enumerable === false);
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assert(Object.getOwnPropertyDescriptor(String.prototype.substr, 'length').writable === false);
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assert(String.prototype.substr.length === 2);
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assert(String.prototype.substr.call(new String()) === "");
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assert(String.prototype.substr.call({}) === "[object Object]");
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// check this is undefined
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try {
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String.prototype.substr.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 this is null
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try {
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String.prototype.substr.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!".substr(0, 11) === "Hello world");
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assert("Hello world!".substr(11, 0) === "");
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assert("Hello world!".substr(0, 12) === "Hello world!");
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assert("Hello world!".substr(12, 0) === "");
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// check NaN
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assert("Hello world!".substr(NaN, 12) === "Hello world!");
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// check NaN
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assert("Hello world!".substr(2, NaN) === "");
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// check end undefined
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assert("Hello world!".substr(2, undefined) === "llo world!");
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// check negative
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assert("Hello world!".substr(-1,8) === "!");
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// check negative
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assert("Hello\tworld!".substr(5,-8) === "");
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// check negative
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assert("Hello world!".substr(-1,-8) === "");
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// check ranges
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assert("Hello world!".substr(-1,10000) === "!");
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assert("Hello world!".substr(10000,1000000) === "");
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assert("Hello world!".substr(100000,1) === "");
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// check both undefined
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assert("Hello world!".substr(undefined, undefined) === "Hello world!");
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var undef_var;
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assert("Hello world!".substr(undef_var, undef_var) === "Hello world!");
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// check integer conversion
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assert("Hello world!".substr(undefined, 5) === "Hello");
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assert("Hello world!".substr(undefined, "bar") === "");
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assert("Hello world!".substr(2, true) === "l");
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assert("Hello world!".substr(2, false) === "");
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assert("Hello world!".substr(5, obj) === " world!");
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// check other objects
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var obj = { substr : String.prototype.substr }
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obj.toString = function() {
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return "Iam";
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}
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assert(obj.substr(0,1) === "I");
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obj.toString = function() {
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throw new ReferenceError ("foo");
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};
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try {
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assert(obj.substr(100000,1));
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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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// check coercible - undefined
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try {
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assert(true.substr() === "");
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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.substr.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.substr.call(true, 0, 1) === "t");
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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.substr.call(test_object, 0, 7) === "[object");
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// check coercible - Number
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assert(String.prototype.substr.call(123, 0, 3) === "123");
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