feat: enhance fs mock with writeFile and mkdir implementations; update index.ts types

Author: hakatashi

__mocks__/fs.js

@@ -42,6 +42,13 @@ fs.promises.readFile = vi.fn((...args) => {
 	}
 });
 
+fs.promises.writeFile = vi.fn((...args) => {
+	const [file, data] = args;
+	const fullPath = Path.resolve(process.cwd(), file);
+	fs.virtualFiles[fullPath] = data;
+	return new Promise((resolve) => resolve());
+});
+
 fs.promises.readdir = vi.fn((...args) => {
 	const [path] = args;
 	const fullPath = Path.resolve(process.cwd(), path);
@@ -105,5 +112,13 @@ fs.writeFile = vi.fn((file, data, ...rest) => {
 	callback(null);
 });
 
+fs.mkdir = vi.fn((...args) => {
+	const [path, options, callback] = args;
+
+	// no-op
+
+	callback(null);
+});
+
 fs.default = fs;
 module.exports = fs;

achievements/__mocks__/index.ts

@@ -7,8 +7,8 @@ export const isUnlocked = () => false;
 export const increment = (user: string, name: string, value: number = 1) => {
 	console.log(`[achievements stub] ${user} increased ${name} by ${value}`);
 };
-export const get = (): any => null;
-export const set = (user: string, name: string, value: any) => {
+export const get = (): unknown => null;
+export const set = (user: string, name: string, value: unknown) => {
 	console.log(`[achievements stub] ${user} set ${name} = ${value}`);
 };
 export const lock = () => {};