saving

Author: raju-opti

lib/utils/event_emitter/event_emitter.spec.ts

@@ -0,0 +1,41 @@
+import { it, vi, expect } from 'vitest';
+
+import { EventEmitter } from './event_emitter';
+
+it('should call all registered listeners on emit event', () => {
+  const emitter = new EventEmitter<{ foo: number, bar: string }>();
+  const fooListener1 = vi.fn();
+  const fooListener2 = vi.fn();
+
+  emitter.on('foo', fooListener1);
+  emitter.on('foo', fooListener2);
+
+  const barListener1 = vi.fn();
+  const barListener2 = vi.fn();
+
+  emitter.on('bar', barListener1);
+  emitter.on('bar', barListener2);
+
+  emitter.emit('foo', 1);
+  expect(fooListener1).toHaveBeenCalledWith(1);
+  expect(fooListener2).toHaveBeenCalledWith(1);
+})
+
+// it('should remove listeners', () => {
+//   const emitter = new EventEmitter();
+//   const cb = jest.fn();
+//   emitter.on('foo', cb);
+//   emitter.off('foo', cb);
+//   emitter.emit('foo');
+//   expect(cb).not.toHaveBeenCalled();
+// })
+
+// it('should remove all listeners', () => {
+//   const emitter = new EventEmitter();
+//   const cb = jest.fn();
+//   emitter.on('foo', cb);
+//   emitter.on('foo', cb);
+//   emitter.off('foo');
+//   emitter.emit('foo');
+//   expect(cb).not.toHaveBeenCalled();
+// }

vitest.config.mts

@@ -4,9 +4,10 @@ export default defineConfig({
   test: {
     onConsoleLog: () => true,
     environment: 'happy-dom',
-    include: ['**/*.spec.ts'],
+    include: ['**/event_emitter.spec.ts'],
     typecheck: {
       tsconfig: 'tsconfig.spec.json',
+      exclude: ['**/index.react_native.spec.ts'],
     },
   },
 });