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Code Issues Releases Wiki Activity

Added polyfill tests

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This commit is contained in:
Oliver foster 2019-12-19 11:46:15 +00:00
parent cad365b53e
commit b74bb0caa2
1 changed files with 18 additions and 0 deletions
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18
test/unit/utils.js
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@ -94,11 +94,22 @@ test('map', (t) => {
const result = map([1,2], (value) => value+2);
t.is(result[0], 3);
t.is(result[1], 4);
const original = Array.prototype.map;
delete Array.prototype.map;
const polyfillResult = map([1,2], (value) => value+2);
Array.prototype.map = original;
t.is(polyfillResult[0], 3);
t.is(polyfillResult[1], 4);
});
test('find', (t) => {
const result = find([1,2], (value) => value==2);
t.is(result, 2);
const original = Array.prototype.find;
delete Array.prototype.find;
const polyfillResult = find([1,2], (value) => value==2);
Array.prototype.find = original;
t.is(polyfillResult, 2);
});
test('assign', (t) => {
@ -106,6 +117,13 @@ test('assign', (t) => {
t.is(result['a'], 1);
t.is(result['b'], 2);
t.is(result['c'], 3);
const original = Object.assign;
delete Object.assign;
const polyfillResult = assign({}, { a: 1 }, { b: 1 }, { b: 2, c: 3 });
Object.assign = original;
t.is(polyfillResult['a'], 1);
t.is(polyfillResult['b'], 2);
t.is(polyfillResult['c'], 3);
});
test('getBrowserAlias', (t) => {