Fix tests to run with mocha (#389)

test/fiori.test.js

@@ -1,9 +1,10 @@
 const cds = require('@sap/cds/lib')
-const { GET, expect, axios } = cds.test ('@capire/fiori', '--with-mocks')
-axios.defaults.auth = { username: 'alice', password: 'admin' }
 
 describe('cap/samples - Fiori APIs - v2', () => {
 
+  const { GET, expect, axios } = cds.test ('@capire/fiori', '--with-mocks')
+  axios.defaults.auth = { username: 'alice', password: 'admin' }
+
   it('serves $metadata documents in v2', async () => {
     const { headers, data } = await GET `/v2/browse/$metadata`
     expect(headers).to.contain({