✅ Add test using faked-promise

package.json

@@ -39,6 +39,7 @@
     "codecov": "^3.0.0",
     "eslint": "^4.16.0",
     "eslint-config-posva": "^1.3.2",
+    "faked-promise": "^1.0.0",
     "jest": "^22.1.4",
     "vue": "^2.5.13",
     "vue-jest": "^2.0.0",

test/index.spec.js

@@ -1,13 +1,13 @@
 import { mount } from '@vue/test-utils'
+import fakePromise from 'faked-promise'
 import Helper from './utils/Helper'
 
-const tick = () => new Promise(resolve => setImmediate(resolve))
+const tick = () => new Promise(resolve => setTimeout(resolve, 0))
 
-describe('Tweezing', () => {
-  let wrapper
-  let promise
-  beforeEach(() => {
-    promise = Promise.resolve('foo')
+describe('Promised', () => {
+  let wrapper, promise, resolve, reject
+  beforeEach(async () => {
+    [promise, resolve, reject] = await fakePromise()
     wrapper = mount(Helper, {
       propsData: {
         promise,
@@ -16,7 +16,18 @@ describe('Tweezing', () => {
   })
 
   test('displays a loading screen waiting for the promise', async () => {
+    expect(wrapper.text()).toBe('loading')
+  })
+
+  test('displays the resolved value once resolved', async () => {
+    resolve('foo')
+    await tick()
+    expect(wrapper.text()).toBe('foo')
+  })
+
+  test('displays an error if rejected', async () => {
+    reject(new Error('hello'))
     await tick()
-    console.log(wrapper.text())
+    expect(wrapper.text()).toBe('hello')
   })
 })

yarn.lock

@@ -1470,6 +1470,10 @@ extsprintf@^1.2.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
 
+faked-promise@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/faked-promise/-/faked-promise-1.0.0.tgz#5b7e93c422be46d9bdd1f8ae1293cb709ca352c0"
+
 fast-deep-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"