fix: allow passing an event name to the emitted method

Author: dobromir-hristov

src/vue-wrapper.ts

@@ -62,10 +62,10 @@ export class VueWrapper<T extends ComponentPublicInstance> {
     return true
   }
 
-  emitted(): Record<string, unknown[]> {
+  emitted(eventName?: string): Record<string, unknown[]> | undefined {
     // TODO Should we define this?
     // @ts-ignore
-    return this.vm.__emitted
+    return eventName ? this.vm.__emitted[eventName] : this.vm.__emitted
   }
 
   html() {

tests/emit.spec.ts

@@ -96,4 +96,29 @@ describe('emitted', () => {
     wrapper.find('button').trigger('click')
     expect(wrapper.emitted().parent[1]).toEqual(['foo', 'bar'])
   })
+
+  it('should allow passing the name of an event', () => {
+    const Component = defineComponent({
+      name: 'ContextEmit',
+
+      setup(props, ctx) {
+        return () =>
+          h('div', [
+            h('button', { onClick: () => ctx.emit('hello', 'foo', 'bar') })
+          ])
+      }
+    })
+    const wrapper = mount(Component)
+
+    // test what happens if you pass a none existent event
+    expect(wrapper.emitted('hello')).toEqual(undefined)
+
+    wrapper.find('button').trigger('click')
+    expect(wrapper.emitted('hello')[0]).toEqual(['foo', 'bar'])
+
+    wrapper.find('button').trigger('click')
+    expect(wrapper.emitted('hello')[1]).toEqual(['foo', 'bar'])
+
+    expect(wrapper.emitted('hello')).toHaveLength(2)
+  })
 })