improve tests cleanup

Author: felixheck

test/cache.spec.js

@@ -2,7 +2,7 @@ const test = require('ava')
 const helpers = require('./_helpers')
 const cache = require('../src/cache')
 
-test.afterEach('reset cache', () => {
+test.afterEach.always('reset cache', () => {
   cache.reset()
 })
 

test/publicKey.spec.js

@@ -3,14 +3,14 @@ const helpers = require('./_helpers')
 const fixtures = require('./fixtures')
 const cache = require('../src/cache')
 
-test.afterEach('reset instances and prototypes', () => {
+test.afterEach.always('reset instances and prototypes', () => {
   cache.reset()
 })
 
 const publicKeyConfig = {
   realmUrl: fixtures.common.realmUrl,
   clientId: fixtures.common.clientId,
-  publicKey: fixtures.common.publicKey
+  publicKey: fixtures.common.publicKeyRsa
 }
 
 test.cb.serial('authentication does succeed', (t) => {

test/secret.spec.js

@@ -4,7 +4,7 @@ const helpers = require('./_helpers')
 const fixtures = require('./fixtures')
 const cache = require('../src/cache')
 
-test.afterEach('reset instances and prototypes', () => {
+test.afterEach.always('reset instances and prototypes', () => {
   cache.reset()
   nock.cleanAll()
 })