mirror of https://github.com/vector-im/riot-web
90 lines
3.6 KiB
TypeScript
90 lines
3.6 KiB
TypeScript
/*
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Copyright 2024 The Matrix.org Foundation C.I.C.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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import { PhasedRolloutFeature } from "../../src/utils/PhasedRolloutFeature";
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describe("Test PhasedRolloutFeature", () => {
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function randomUserId() {
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const characters = "abcdefghijklmnopqrstuvwxyz0123456789.=_-/+";
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let result = "";
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const charactersLength = characters.length;
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const idLength = Math.floor(Math.random() * 15) + 6; // Random number between 6 and 20
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for (let i = 0; i < idLength; i++) {
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result += characters.charAt(Math.floor(Math.random() * charactersLength));
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}
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return "@" + result + ":matrix.org";
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}
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function randomDeviceId() {
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const characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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let result = "";
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const charactersLength = characters.length;
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for (let i = 0; i < 10; i++) {
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result += characters.charAt(Math.floor(Math.random() * charactersLength));
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}
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return result;
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}
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it("should only accept valid percentage", () => {
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expect(() => new PhasedRolloutFeature("test", 0.8)).toThrow();
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expect(() => new PhasedRolloutFeature("test", -1)).toThrow();
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expect(() => new PhasedRolloutFeature("test", 123)).toThrow();
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});
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it("should enable for all if percentage is 100", () => {
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const phasedRolloutFeature = new PhasedRolloutFeature("test", 100);
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for (let i = 0; i < 1000; i++) {
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expect(phasedRolloutFeature.isFeatureEnabled(randomUserId())).toBeTruthy();
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}
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});
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it("should not enable for anyone if percentage is 0", () => {
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const phasedRolloutFeature = new PhasedRolloutFeature("test", 0);
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for (let i = 0; i < 1000; i++) {
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expect(phasedRolloutFeature.isFeatureEnabled(randomUserId())).toBeFalsy();
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}
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});
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it("should enable for more users if percentage grows", () => {
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let rolloutPercentage = 0;
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let previousBatch: string[] = [];
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const allUsers = new Array(1000).fill(0).map(() => randomDeviceId());
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while (rolloutPercentage <= 90) {
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rolloutPercentage += 10;
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const nextRollout = new PhasedRolloutFeature("test", rolloutPercentage);
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const nextBatch = allUsers.filter((userId) => nextRollout.isFeatureEnabled(userId));
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expect(previousBatch.length).toBeLessThan(nextBatch.length);
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expect(previousBatch.every((user) => nextBatch.includes(user))).toBeTruthy();
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previousBatch = nextBatch;
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}
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});
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it("should distribute differently depending on the feature name", () => {
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const allUsers = new Array(1000).fill(0).map(() => randomUserId());
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const featureARollout = new PhasedRolloutFeature("FeatureA", 50);
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const featureBRollout = new PhasedRolloutFeature("FeatureB", 50);
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const featureAUsers = allUsers.filter((userId) => featureARollout.isFeatureEnabled(userId));
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const featureBUsers = allUsers.filter((userId) => featureBRollout.isFeatureEnabled(userId));
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expect(featureAUsers).not.toEqual(featureBUsers);
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});
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});
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