quality: web debt batch (tests runner, FireContainer, rate-limit, maps, i18n)

Independent-of-prod quality debt from PENDIENTE.md §2:

- test: migrate broken Jest -> meteortesting:mocha. Tests rewritten to chai +
  Meteor 3 async APIs, moved to test/server/ (server-only). test/server/
  00-setup.test.js re-runs the collection2/accounts init that `meteor test`
  skips (no server/main.js). New comments method + mediaAnalyzers coverage.
  Dropped rest.test.js (removed meteor/http; covered by smoke/). 36 passing.
- fix: scope FireContainer read by the URL _id on the archive route instead of
  a selector-less FiresCollection.findOne() (imports/ui/pages/Fires/Fires.js).
- feat: rate-limit abusable publications via rateLimitSubscriptions (fireFrom*
  and comments.forReference 5/1000ms; geo subs 10/1000ms).
- perf: append loading=async to the Google Maps loader URL (Gkeys.js).
- deps: meteor-accounts-t9n 2.0 -> 2.6 (no gl build -> keep gl->es fallback,
  documented); add 3 missing gl/common.json keys (0 missing now).
- deps: drop jest/babel/enzyme, add chai.

test/server/tweets.test.js

@@ -0,0 +1,51 @@
+/* eslint-env mocha */
+/* eslint-disable func-names, prefer-arrow-callback */
+/* eslint-disable import/no-absolute-path */
+
+import { expect } from 'chai';
+import { composeIberiaTweet } from '/imports/api/ActiveFires/server/tweetFiresInZone';
+
+const tr = (stats) => {
+  const keys = Object.keys(stats);
+  const newStats = [];
+  keys.map((key) => {
+    newStats[key] = { count: stats[key] };
+  });
+  return newStats;
+};
+
+describe('compose tweets of fires', () => {
+  it('No fires', () => {
+    expect(composeIberiaTweet(0, { })).to.equal('');
+  });
+
+  it('a fire in a zone', () => {
+    expect(composeIberiaTweet(1, tr({ Asturias: 1 }))).to.equal('Un #fuego activo en #Asturias');
+  });
+
+  it('some fires in a zone', () => {
+    expect(composeIberiaTweet(4, tr({ Asturias: 4 }))).to.equal('4 #fuegos activos en #Asturias');
+  });
+
+  it('some fires in two zones', () => {
+    expect(composeIberiaTweet(5, tr({ Asturias: 1, Madrid: 4 }))).to.equal('Un #fuego activo en #Asturias y otros 4 en #Madrid');
+  });
+
+  it('some fires in some zones', () => {
+    expect(composeIberiaTweet(8, tr({ Catalunya: 3, Asturias: 1, Madrid: 4 }))).to.equal('3 #fuegos activos en #Catalunya, otro en #Asturias y otros 4 en #Madrid');
+  });
+
+  it('other fires in some zones', () => {
+    expect(composeIberiaTweet(6, tr({ Catalunya: 1, Asturias: 1, Madrid: 4 }))).to.equal('Un #fuego activo en #Catalunya, otro en #Asturias y otros 4 en #Madrid');
+  });
+
+  it('other fires in two zones', () => {
+    expect(composeIberiaTweet(2, tr({ Catalunya: 1, Asturias: 1 }))).to.equal('Un #fuego activo en #Catalunya y otro en #Asturias');
+  });
+
+  it('many fires in many zones', () => {
+    expect(composeIberiaTweet(11, tr({
+      Cataluña: 3, Cantabria: 1, Andalucia: 4, Galicia: 1, Madrid: 2
+    }))).to.equal('3 #fuegos activos en #Cataluña, otro en #Cantabria, otros 4 en #Andalucia, otro en #Galicia y otros 2 en #Madrid');
+  });
+});