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fix(last-n-limits): crash on undefined

This commit is contained in:
paweldomas 2020-08-04 08:16:00 -05:00 committed by Saúl Ibarra Corretgé
parent b3b561f27a
commit 4adaa6f1fd
2 changed files with 8 additions and 1 deletions
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4
react/features/base/lastn/functions.js
View File

@ -40,6 +40,10 @@ export function validateLastNLimits(lastNLimits) {
* of participants or {@code undefined} otherwise. * of participants or {@code undefined} otherwise.
*/ */
export function limitLastN(participantsCount, lastNLimits) { export function limitLastN(participantsCount, lastNLimits) {
if (!lastNLimits || !lastNLimits.keys) {
return undefined;
}
let selectedLimit; let selectedLimit;
for (const participantsN of lastNLimits.keys()) { for (const participantsN of lastNLimits.keys()) {

5
react/features/base/lastn/functions.test.js
View File

@ -1,6 +1,9 @@
import { limitLastN, validateLastNLimits } from './functions'; import { limitLastN, validateLastNLimits } from './functions';
describe('limitsLastN', () => { describe('limitLastN', () => {
it('handles undefined mapping', () => {
expect(limitLastN(0, undefined)).toBe(undefined);
});
describe('when a correct limit mapping is given', () => { describe('when a correct limit mapping is given', () => {
const limits = new Map(); const limits = new Map();