Refactor (#54)

* run `npm ci` instead of `npm install` for PR build

* bump version

* return Promise for test mock

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - run: |
-        npm install
+        npm ci
         npm run all
     - uses: coverallsapp/github-action@master
       with:

__tests__/main.test.ts

@@ -27,8 +27,8 @@ describe('run', () => {
           path.join(__dirname, 'testdata/audit/success.txt')
         ),
         status: 0,
-        run: (): void => {
+        run: (): Promise<void> => {
-          return
+          return Promise.resolve(void 0)
         },
         foundVulnerability: (): boolean => {
           return false
@@ -60,8 +60,8 @@ describe('run', () => {
           path.join(__dirname, 'testdata/audit/error.txt')
         ),
         status: 1,
-        run: (): void => {
+        run: (): Promise<void> => {
-          return
+          return Promise.resolve(void 0)
         },
         foundVulnerability: (): boolean => {
           return true

package.json

@@ -1,6 +1,6 @@
 {
   "name": "npm-audit-action",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "private": true,
   "description": "GitHub Action to run `npm audit`",
   "main": "lib/main.js",