upgrade ava and remove babel

package.json

@@ -5,14 +5,15 @@
 		"node": "^20",
 		"npm": "^10"
 	},
+	"type": "module",
 	"scripts": {
 		"prepare": "husky install",
 		"precommit": "lint-staged",
 		"dev": "tsx scripts/build.ts --dev",
 		"build:css": "tailwindcss -i ./src/content/globals.css -o ./dist/content.css --minify",
 		"build:ext": "webpack --mode=production",
 		"build": "tsx scripts/build.ts",
-		"test": "cross-env BABEL_ENV=testing ava",
+		"test": "ava",
 		"lint": "biome check .",
 		"release:amo": "web-ext-submit --source-dir dist",
 		"release:cws": "chrome-webstore-upload upload --source=dist --auto-publish",
@@ -48,17 +49,7 @@
 		"@tsconfig/node20": "^20.1.2",
 		"@types/node": "^20.11.5",
 		"autoprefixer": "^10.4.16",
-		"ava": "^0.25.0",
-		"babel-core": "^6.26.0",
-		"babel-loader": "^7.1.3",
-		"babel-plugin-transform-class-properties": "^6.24.1",
-		"babel-plugin-transform-object-rest-spread": "^6.26.0",
-		"babel-plugin-transform-react-jsx": "^6.24.1",
-		"babel-polyfill": "^6.26.0",
-		"babel-preset-env": "^1.6.1",
-		"babel-preset-react": "^6.24.1",
-		"babel-register": "^6.26.0",
-		"browser-env": "^3.2.5",
+		"ava": "^6.0.1",
 		"chokidar": "^3.5.3",
 		"chrome-webstore-upload-cli": "^2.0.1",
 		"cross-env": "^5.1.5",
@@ -84,26 +75,7 @@
 	},
 	"ava": {
 		"require": [
-			"babel-register",
-			"babel-polyfill",
-			"./test/helpers/setup-browser-env.js"
-		],
-		"babel": {
-			"plugins": [
-				"transform-react-jsx"
-			]
-		}
-	},
-	"babel": {
-		"env": {
-			"testing": {
-				"presets": [
-					"env"
-				],
-				"plugins": [
-					"transform-object-rest-spread"
-				]
-			}
-		}
+			"./test/_setup.js"
+		]
 	}
 }

src/content/helpers/elo.js

@@ -1,7 +1,7 @@
-import isNumber from "lodash/isNumber";
-import round from "lodash/round";
+import isNumber from "lodash/isNumber.js";
+import round from "lodash/round.js";
 import mem from "mem";
-import { getMatchmakingQueue } from "./faceit-api";
+import { getMatchmakingQueue } from "./faceit-api.js";
 
 export function normalizeElo(elo) {
 	return Number(elo.replace(",", ""));

src/content/helpers/faceit-api.js

@@ -1,11 +1,11 @@
 import camelcaseKeys from "camelcase-keys";
-import format from "date-fns/format";
+import format from "date-fns/format/index.js";
 import Cookies from "js-cookie";
 import pMemoize from "p-memoize";
 import browser from "webextension-polyfill";
-import { ACTION_FETCH_FACEIT_API } from "../../shared/constants";
-import { isSupportedGame } from "./games";
-import { mapAverageStatsMemoized, mapTotalStatsMemoized } from "./stats";
+import { ACTION_FETCH_FACEIT_API } from "../../shared/constants.js";
+import { isSupportedGame } from "./games.js";
+import { mapAverageStatsMemoized, mapTotalStatsMemoized } from "./stats.js";
 
 export const CACHE_TIME = 600000;
 

src/content/helpers/pages.js

@@ -1,4 +1,4 @@
-import { getCurrentPath } from "./location";
+import { getCurrentPath } from "./location.js";
 
 export const isRoomOverview = (path) =>
 	/room\/.+-.+-.+-.+$/.test(path || getCurrentPath());

test/_setup.js

@@ -0,0 +1,3 @@
+global.location = new URL("https://www.faceit.com");
+
+global.chrome = null;

test/elo.js

@@ -2,7 +2,7 @@ import test from "ava";
 import {
 	estimateRatingChange,
 	predictRatingChange,
-} from "../src/content/helpers/elo";
+} from "../src/content/helpers/elo.js";
 
 test("estimateRatingChange", (t) => {
 	t.deepEqual(estimateRatingChange(2000, 2000), {

test/pages.js

@@ -1,5 +1,5 @@
 import test from "ava";
-import * as pages from "../src/content/helpers/pages";
+import * as pages from "../src/content/helpers/pages.js";
 
 test("isRoomOverview", (t) => {
 	const path = "en/csgo/room/466ece1d-9f16-4b64-aa2d-826c60bc022f";

test/stats.js

@@ -1,5 +1,8 @@
 import test from "ava";
-import { mapAverageStats, mapTotalStats } from "../src/content/helpers/stats";
+import {
+	mapAverageStats,
+	mapTotalStats,
+} from "../src/content/helpers/stats.js";
 
 test("mapTotalStats", (t) => {
 	const stats = {