adapt bookshop for openSAP course

packages/bookshop/tests/utils.js

@@ -0,0 +1,23 @@
+const cds = require('@sap/cds/lib/cds')
+const run = require('@sap/cds/bin/run')
+
+let testServer
+const cwd = process.cwd()
+
+const setup = (model, done) => {
+  cds.once('listening', ({ server }) => {
+    testServer = server
+    done()
+  })
+  run([model], { 'in-memory?': true })
+}
+
+const close = done => {
+  testServer.close(done)
+  process.chdir(cwd)
+}
+
+module.exports = {
+  setup,
+  close
+}