refactor(test): move helper functions for tests

Author: posva

test/helpers/index.js

@@ -1,2 +1,53 @@
-export * from './wait-for-update'
+import Vue from 'vue'
+
+Vue.config.productionTip = false
+export { Vue }
+
 export * from './mock'
+
+export function spyUnbind (ref) {
+  const spy = jest.fn()
+  const onSnapshot = ref.onSnapshot.bind(ref)
+  ref.onSnapshot = fn => {
+    const unbind = onSnapshot(fn)
+    return () => {
+      spy()
+      unbind()
+    }
+  }
+  return spy
+}
+
+export function spyOnSnapshot (ref) {
+  const onSnapshot = ref.onSnapshot.bind(ref)
+  return (ref.onSnapshot = jest.fn((...args) => onSnapshot(...args)))
+}
+
+export function spyOnSnapshotCallback (ref) {
+  const onSnapshot = ref.onSnapshot.bind(ref)
+  const spy = jest.fn()
+  ref.onSnapshot = fn => onSnapshot((...args) => {
+    spy()
+    fn(...args)
+  })
+  return spy
+}
+
+// This makes sure some tests fail by delaying callbacks
+export function delayUpdate (ref, time = 0) {
+  const onSnapshot = ref.onSnapshot.bind(ref)
+  ref.onSnapshot = fn => onSnapshot(async (...args) => {
+    await delay(time)
+    fn(...args)
+  })
+}
+
+export function tick () {
+  return new Promise((resolve, reject) => {
+    Vue.nextTick(resolve)
+  })
+}
+
+export function delay (time) {
+  return new Promise(resolve => setTimeout(resolve, time))
+}

test/helpers/wait-for-update.js

@@ -3,6 +3,7 @@ import {
   db,
   tick,
   delay,
+  delayUpdate,
   Vue
 } from './helpers'
 
@@ -26,15 +27,6 @@ beforeEach(async () => {
   await tick()
 })
 
-// This makes sure some tests fail by delaying callbacks
-function delayUpdate (ref, time = 0) {
-  const onSnapshot = ref.onSnapshot.bind(ref)
-  ref.onSnapshot = fn => onSnapshot(async (...args) => {
-    await delay(time)
-    fn(...args)
-  })
-}
-
 test('binds refs on collections', async () => {
   await vm.$bind('items', collection)
 

test/refs-collections.spec.js

@@ -3,6 +3,9 @@ import {
   db,
   tick,
   delay,
+  spyUnbind,
+  spyOnSnapshot,
+  spyOnSnapshotCallback,
   Vue
 } from './helpers'
 
@@ -40,34 +43,6 @@ beforeEach(async () => {
   await delay(5)
 })
 
-function spyUnbind (ref) {
-  const spy = jest.fn()
-  const onSnapshot = ref.onSnapshot.bind(ref)
-  ref.onSnapshot = fn => {
-    const unbind = onSnapshot(fn)
-    return () => {
-      spy()
-      unbind()
-    }
-  }
-  return spy
-}
-
-function spyOnSnapshot (ref) {
-  const onSnapshot = ref.onSnapshot.bind(ref)
-  return (ref.onSnapshot = jest.fn((...args) => onSnapshot(...args)))
-}
-
-function spyOnSnapshotCallback (ref) {
-  const onSnapshot = ref.onSnapshot.bind(ref)
-  const spy = jest.fn()
-  ref.onSnapshot = fn => onSnapshot((...args) => {
-    spy()
-    fn(...args)
-  })
-  return spy
-}
-
 test('binds refs on documents', async () => {
   // create an empty doc and update using the ref instead of plain data
   const c = collection.doc()