test: added support for .svelte.js test files

Author: marekdedic

packages/eslint-plugin-svelte/tests/utils/utils.ts

@@ -193,7 +193,9 @@ function* itrListupInput(rootDir: string): IterableIterator<string> {
 			continue;
 		}
 		const abs = path.join(rootDir, filename);
-		const baseFileName = path.basename(filename, path.extname(filename));
+		const baseName = path.basename(filename);
+		const fileNameSuffix = baseName.match(/\.svelte\.(?:j|t)s$/u) ? baseName.slice(baseName.length - 10) : path.extname(filename);
+		const baseFileName = baseName.slice(0, baseName.length - fileNameSuffix.length);
 		if (baseFileName.endsWith('input') || baseFileName.startsWith('+')) {
 			yield abs;
 		} else if (fs.statSync(abs).isDirectory()) {
@@ -350,7 +352,7 @@ function getConfig(ruleName: string, inputFile: string) {
 }
 
 function getRequirements(inputFile: string): Record<string, string> {
-	let requirementsFile: string = inputFile.replace(/(input|\+.+)\.[a-z]+$/u, 'requirements.json');
+	let requirementsFile: string = inputFile.replace(/(input|\+.+)(?:\.[a-z]+)+$/u, 'requirements.json');
 	if (!fs.existsSync(requirementsFile)) {
 		requirementsFile = path.join(path.dirname(inputFile), '_requirements.json');
 	}