Add initial tests

Author: jeremydw

.github/workflows/test.yml

@@ -0,0 +1,26 @@
+name: 'Run tests'
+
+on: [push]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: |
+            ~/.npm
+            **/node_modules
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+      - name: Run tests
+        run: |
+                npm install --dev
+                npm run test

src/server.test.ts

@@ -0,0 +1,14 @@
+import * as server from './server';
+
+import {ExecutionContext} from 'ava';
+import test from 'ava';
+
+test('Test parseHostname', (t: ExecutionContext) => {
+  t.deepEqual(
+    server.parseHostname('sitename-refname-dot-fileset2-dot-appid.appspot.com'),
+    {
+      siteId: 'sitename',
+      branchOrRef: 'refname',
+    }
+  );
+});

src/server.ts

@@ -1,6 +1,8 @@
+import * as fsPath from 'path';
+
 import {Datastore} from '@google-cloud/datastore';
 import {GoogleAuth} from 'google-auth-library';
-import * as fsPath from 'path';
+
 import express = require('express');
 import httpProxy = require('http-proxy');
 
@@ -48,7 +50,7 @@ const getManifest = async (siteId: string, branchOrRef: string) => {
   // }
 };
 
-const parseHostname = (hostname: string) => {
+export function parseHostname(hostname: string) {
   // TODO: Make this more robust
   if (hostname.includes('-dot-')) {
     const prefix = hostname.split('-dot-fileset2-')[0];
@@ -63,7 +65,7 @@ const parseHostname = (hostname: string) => {
       branchOrRef: '',
     };
   }
-};
+}
 
 export function createApp(siteId: string, branchOrRef: string) {
   console.log(`Starting server for site: ${siteId} @ ${branchOrRef}`);
@@ -82,6 +84,7 @@ export function createApp(siteId: string, branchOrRef: string) {
 
     const manifest = await getManifest(requestSiteId, requestBranchOrRef);
     if (!manifest || !manifest.paths) {
+      console.log(`Site: ${requestSiteId}, Ref: ${requestBranchOrRef}`);
       res
         .status(404)
         .sendFile(