refactor: log screenshot paths and add unit test (#574)

comparadise-utils/jest.config.ts

@@ -0,0 +1,3 @@
+import config from '../jest.config';
+
+export default config;

comparadise-utils/package.json

@@ -31,6 +31,7 @@
   "scripts": {
     "build": "tsup",
     "postbuild": "echo \"require('./dist/match-screenshot');\" > commands.js",
-    "prepack": "bun run build"
+    "prepack": "bun run build",
+    "test": "jest"
   }
 }

comparadise-utils/screenshots.ts

@@ -10,6 +10,7 @@ import { createImageFileName } from './files';
  */
 export function baseExists(path: string) {
   const fileName = createImageFileName(path, 'base');
+  console.log('Checking if base image exists at:', fileName);
   const exists = fs.existsSync(fileName);
 
   if (!exists) {

comparadise-utils/test/screenshots.test.ts

@@ -0,0 +1,15 @@
+import { baseExists } from '../screenshots';
+import { existsSync } from 'fs';
+import { expect } from '@jest/globals';
+
+jest.mock('fs');
+
+describe('screenshots', () => {
+  it('should take a screenshot', () => {
+    (existsSync as jest.Mock).mockReturnValue(true);
+    const path = 'path/to/file';
+    const result = baseExists(path);
+    expect(result).toBe(true);
+    expect(existsSync).toHaveBeenCalledWith(`${path}/base.png`);
+  });
+});

comparadise-utils/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "extends": "../tsconfig.json",
   "compilerOptions": {
-    "types": ["cypress"]
+    "types": ["cypress", "jest"]
   },
   "include": ["./**/*", "../reset.d.ts"]
 }