| Path : /var/www/html/infraai.ai/frontend/node_modules/string.prototype.trimstart/test/ |
|
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| Current File : /var/www/html/infraai.ai/frontend/node_modules/string.prototype.trimstart/test/shimmed.js |
'use strict';
require('../auto');
var runTests = require('./tests');
var test = require('tape');
var defineProperties = require('define-properties');
var callBind = require('call-bind');
var isEnumerable = Object.prototype.propertyIsEnumerable;
var functionsHaveNames = require('functions-have-names')();
test('shimmed', function (t) {
t.equal(String.prototype.trimStart.length, 0, 'String#trimStart has a length of 0');
t.test('Function name', { skip: !functionsHaveNames }, function (st) {
st.equal((/^(?:trimLeft|trimStart)$/).test(String.prototype.trimStart.name), true, 'String#trimStart has name "trimLeft" or "trimStart"');
st.end();
});
t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) {
et.equal(false, isEnumerable.call(String.prototype, 'trimStart'), 'String#trimStart is not enumerable');
et.end();
});
var supportsStrictMode = (function () { return typeof this === 'undefined'; }());
t.test('bad string/this value', { skip: !supportsStrictMode }, function (st) {
st['throws'](function () { return String.prototype.trimStart.call(undefined, 'a'); }, TypeError, 'undefined is not an object');
st['throws'](function () { return String.prototype.trimStart.call(null, 'a'); }, TypeError, 'null is not an object');
st.end();
});
runTests(callBind(String.prototype.trimStart), t);
t.end();
});