is-a-dev/tests/pr.test.js

const t = require("ava");
const fs = require("fs-extra");
const path = require("path");

const PR_AUTHOR = process.env.PR_AUTHOR;
const MODIFIED_FILES = process.env.MODIFIED_FILES.split(" ");

const domainsPath = path.resolve("domains");
const headDomainsPath = path.resolve(`register-${process.env.RUN_ID}/domains`);

const admins = require("../util/administrators.json");

t("Modified JSON files must be owned by the PR author", (t) => {
    if(process.env.EVENT !== "pull_request") {
        t.pass();
        return;
    }

    MODIFIED_FILES.forEach((file) => {
        const modifiedDomain = fs.readJsonSync(path.join(domainsPath, file.substring(MODIFIED_FILES[i].lastIndexOf("/") + 1)));
        let currentDomain = null;

        try {
            currentDomain = fs.readJsonSync(path.join(headDomainsPath, file.substring(MODIFIED_FILES[i].lastIndexOf("/") + 1)));
        } catch {
            currentDomain = modifiedDomain;
        }

        t.true(
            currentDomain.owner.username === PR_AUTHOR || admins.includes(PR_AUTHOR),
            `${file}: Domain owner is ${domain.owner.username} but ${PR_AUTHOR} is the PR author`
        );
    });
});


t("New JSON files must be owned by the PR author", (t) => {
    if(process.env.EVENT !== "pull_request") {
        t.pass();
        return;
    }

    const newFiles = fs.readdirSync(domainsPath).filter((file) => !fs.readdirSync(headDomainsPath).includes(file.substring(MODIFIED_FILES[i].lastIndexOf("/") + 1)));

    newFiles.forEach((file) => {
        const domain = fs.readJsonSync(path.join(domainsPath, file.substring(MODIFIED_FILES[i].lastIndexOf("/") + 1)));

        t.true(
            domain.owner.username === PR_AUTHOR || admins.includes(PR_AUTHOR),
            `${file}: Domain owner is ${domain.owner.username} but ${PR_AUTHOR} is the PR author`
        );
    });
})