test: add cjs tests

jest.config.cjs.ts

@@ -0,0 +1,23 @@
+import type { Config } from '@jest/types'
+
+// see https://jestjs.io/docs/ecmascript-modules
+
+// Sync object
+const config: Config.InitialOptions = {
+  verbose: true,
+  testMatch: [
+    '**/__tests__/**/*.+(ts|tsx|js)',
+    '**/?(*.)+(spec|test).+(ts|tsx|js)',
+  ],
+  moduleDirectories: [
+    'node_modules',
+    'src',
+  ],
+  moduleFileExtensions: ['ts', 'js'],
+  extensionsToTreatAsEsm: ['.ts'],
+  transform: {
+    '^.+\\.ts$': 'ts-jest',
+  },
+}
+
+export default config

package.json

@@ -23,7 +23,8 @@
 	"bugs": "https://github.com/iconify/collections-json/issues",
 	"scripts": {
 		"build": "rimraf dist && tsup src/index.ts --format cjs,esm --dts",
-		"test": "yarn build && jest --clearCache && cross-env NODE_OPTIONS=--experimental-vm-modules npx jest"
+		"test-esm": "yarn build && jest --clearCache && cross-env NODE_OPTIONS=--experimental-vm-modules npx jest --config=jest.config.esm.ts",
+		"test-cjs": "yarn build && jest --clearCache && jest --config=jest.config.cjs.ts"
 	},
 	"dependencies": {
 		"upath": "^2.0.1"

src/locate.test.ts

@@ -6,7 +6,7 @@ const cwd = process.cwd()
 describe('locate', () => {
   test('mdi resolves the json collection', () => {
     const received = locate('mdi') as string
-    const expected = resolve(cwd, 'json/', 'mdi.json').replace(/\\/g, '/')
+    const expected = resolve(cwd, 'json', 'mdi.json').replace(/\\/g, '/')
     expect(received).toBe(expected)
   })
 })