test(vitest): Migrate karma to vitest

Migrate all tests to be ran on vitest

Ref naver#3681

package.json

@@ -39,9 +39,8 @@
 		"lint": "eslint",
 		"format": "dprint fmt",
 		"loc": "cloc --by-file src",
-		"test": "node --max-old-space-size=3072 ./node_modules/karma/bin/karma start ./karma.conf.cjs",
-		"test:chrome": "cross-env TEST_TYPE=chrome npm test",
-		"coverage": "cross-env TEST_TYPE=coverage npm test",
+		"test": "vitest",
+		"coverage": "vitest run",
 		"coveralls": "cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js",
 		"jsdoc": "node ./config/jsdoc.js",
 		"jsdoc:cmd": "jsdoc -c jsdoc.json",
@@ -114,12 +113,14 @@
 		"@semantic-release/git": "^10.0.1",
 		"@semantic-release/npm": "^12.0.1",
 		"@semantic-release/release-notes-generator": "^14.0.1",
-		"@types/chai": "^4.3.16",
+		"@testing-library/dom": "^10.4.0",
+		"@testing-library/react": "^16.0.0",
 		"@types/d3": "^7.4.3",
-		"@types/mocha": "^10.0.7",
 		"@types/sinon": "^17.0.3",
+		"@vitest/browser": "^2.0.5",
+		"@vitest/coverage-istanbul": "^2.0.5",
+		"@vitest/ui": "^2.0.5",
 		"better-docs": "^2.7.3",
-		"chai": "^4.3.10",
 		"clean-webpack-plugin": "^4.0.0",
 		"cloc": "^2.11.0",
 		"core-js": "^3.37.1",
@@ -134,43 +135,28 @@
 		"dprint": "^0.47.2",
 		"esbuild-loader": "^4.2.2",
 		"eslint": "^9.8.0",
-		"eslint-config-naver": "^2.1.0",
 		"eslint-plugin-import": "^2.29.1",
 		"eslint-plugin-jsdoc": "^48.9.2",
-		"exports-loader": "^5.0.0",
-		"hammer-simulator": "0.0.1",
 		"husky": "^9.1.4",
-		"istanbul-instrumenter-loader": "^3.0.1",
-		"istanbul-lib-instrument": "^6.0.3",
 		"jsdoc": "^4.0.3",
-		"karma": "^6.4.4",
-		"karma-chai": "^0.1.0",
-		"karma-chrome-launcher": "^3.2.0",
-		"karma-coverage-istanbul-reporter": "^3.0.3",
-		"karma-mocha": "^2.0.1",
-		"karma-mocha-reporter": "^2.2.3",
-		"karma-scss-preprocessor": "^4.0.0",
-		"karma-sinon": "^1.0.5",
-		"karma-sourcemap-loader": "^0.4.0",
-		"karma-webpack": "^5.0.1",
 		"lint-staged": "^15.2.7",
-		"lite-fixture": "^1.0.2",
 		"mini-css-extract-plugin": "^2.9.0",
-		"mocha": "^10.7.0",
 		"node-sass": "^9.0.0",
 		"regenerator-runtime": "^0.14.1",
 		"rollup": "^4.19.1",
 		"rollup-plugin-delete": "^2.0.0",
+		"sass": "^1.77.8",
 		"sass-loader": "^16.0.0",
 		"semantic-release": "^24.0.0",
 		"simulant": "^0.2.2",
 		"sinon": "^18.0.0",
 		"string-replace-loader": "^3.1.0",
 		"style-loader": "^4.0.0",
-		"taffydb": "^2.7.3",
 		"tslib": "^2.6.3",
 		"typescript": "5.5.4",
 		"typescript-eslint": "^7.18.0",
+		"vitest": "^2.0.5",
+		"webdriverio": "^8.39.1",
 		"webpack": "^5.93.0",
 		"webpack-bundle-analyzer": "^4.10.2",
 		"webpack-clean": "^1.2.5",

src/ChartInternal/internals/scale.ts

@@ -20,7 +20,7 @@ import type {IDataRow, IGridData} from "../data/IData";
  * @returns {d3.scaleLinear|d3.scaleTime} scale
  * @private
  */
-export function getScale(type = "linear", min, max): any {
+export function getScale<T = IDataRow["x"]>(type = "linear", min?: T, max?: T): any {
 	const scale = ({
 		linear: d3ScaleLinear,
 		log: d3ScaleSymlog,

src/module/browser.ts

@@ -26,7 +26,7 @@ function getGlobal() {
  * @returns {Array} fallback object array
  * @private
  */
-function getFallback(w) {
+export function getFallback(w?) {
 	const hasRAF = typeof w?.requestAnimationFrame === "function" &&
 		typeof w?.cancelAnimationFrame === "function";
 	const hasRIC = typeof w?.requestIdleCallback === "function" &&

src/module/util.ts

@@ -532,8 +532,8 @@ function getCssRules(styleSheets: any[]) {
  */
 function getScrollPosition(node: HTMLElement) {
 	return {
-		x: (window.pageXOffset ?? window.scrollX ?? 0) + node.scrollLeft ?? 0,
-		y: (window.pageYOffset ?? window.scrollY ?? 0) + node.scrollTop ?? 0
+		x: (window.pageXOffset ?? window.scrollX ?? 0) + (node.scrollLeft ?? 0),
+		y: (window.pageYOffset ?? window.scrollY ?? 0) + (node.scrollTop ?? 0)
 	};
 }
 

src/module/worker.ts

@@ -41,7 +41,7 @@ function getObjectURL(fn: Function, depsFn?: Function[]): string {
  * @returns {object} WebWorker instance
  * @private
  */
-function getWorker(src) {
+export function getWorker(src) {
 	const worker = new window.Worker(src);
 
 	// handle error