cypress-load-balancer/dist/mjs/src/plugin.js

A simple load balancer for Cypress tests.

import fs from "node:fs";
import utils from "./utils";
export default function addCypressLoadBalancerPlugin(on, testingType) {
    on("after:run", (results) => {
        if (results.status === "failed") {
            console.error("cypress-load-balancer", "Cypress failed to execute, so load balancing is skipped");
        }
        else {
            const cypressRunResult = results;
            //Prep load balancing file if not existing and read it
            utils.initializeLoadBalancingFiles();
            const loadBalancingMap = JSON.parse(fs.readFileSync(utils.MAIN_LOAD_BALANCING_MAP_FILE_PATH).toString());
            for (const run of cypressRunResult.runs) {
                // @ts-expect-error THe Cypress config type for PublicConfig is wrong
                testingType = (cypressRunResult.config?.testingType || testingType);
                const fileName = run.spec.relative;
                utils.createNewEntry(loadBalancingMap, testingType, fileName);
                utils.updateFileStats(loadBalancingMap, testingType, fileName, run.stats.duration);
            }
            //Overwrite original load balancing file
            utils.saveMapFile(loadBalancingMap);
            utils.DEBUG("Updated load balancing map with new file averages");
        }
    });
}