Created ServersService test

src/servers/reducers/selectedServer.js

@@ -1,5 +1,5 @@
 import ShlinkApiClient from '../../api/ShlinkApiClient';
-import ServersService from '../../servers/services/ServersService';
+import serversService from '../../servers/services/ServersService';
 import { resetShortUrlParams } from '../../short-urls/reducers/shortUrlsListParams'
 import { curry } from 'ramda';
 
@@ -21,10 +21,10 @@ export default function reducer(state = defaultState, action) {
 
 export const resetSelectedServer = () => ({ type: RESET_SELECTED_SERVER });
 
-export const _selectServer = (ShlinkApiClient, ServersService, serverId) => dispatch => {
+export const _selectServer = (ShlinkApiClient, serversService, serverId) => dispatch => {
   dispatch(resetShortUrlParams());
 
-  const selectedServer = ServersService.findServerById(serverId);
+  const selectedServer = serversService.findServerById(serverId);
   ShlinkApiClient.setConfig(selectedServer);
 
   dispatch({
@@ -32,4 +32,4 @@ export const _selectServer = (ShlinkApiClient, ServersService, serverId) => disp
     selectedServer
   })
 };
-export const selectServer = curry(_selectServer)(ShlinkApiClient, ServersService);
+export const selectServer = curry(_selectServer)(ShlinkApiClient, serversService);

src/servers/reducers/server.js

@@ -1,4 +1,4 @@
-import ServersService from '../services/ServersService';
+import serversService from '../services/ServersService';
 import { curry } from 'ramda';
 
 export const FETCH_SERVERS = 'shlink/servers/FETCH_SERVERS';
@@ -12,26 +12,26 @@ export default function reducer(state = {}, action) {
   }
 }
 
-export const _listServers = ServersService => ({
+export const _listServers = serversService => ({
   type: FETCH_SERVERS,
-  servers: ServersService.listServers(),
+  servers: serversService.listServers(),
 });
-export const listServers = () => _listServers(ServersService);
+export const listServers = () => _listServers(serversService);
 
-export const _createServer = (ServersService, server) => {
-  ServersService.createServer(server);
-  return _listServers(ServersService);
+export const _createServer = (serversService, server) => {
+  serversService.createServer(server);
+  return _listServers(serversService);
 };
-export const createServer = curry(_createServer)(ServersService);
+export const createServer = curry(_createServer)(serversService);
 
-export const _deleteServer = (ServersService, server) => {
-  ServersService.deleteServer(server);
-  return _listServers(ServersService);
+export const _deleteServer = (serversService, server) => {
+  serversService.deleteServer(server);
+  return _listServers(serversService);
 };
-export const deleteServer = curry(_deleteServer)(ServersService);
+export const deleteServer = curry(_deleteServer)(serversService);
 
-export const _createServers = (ServersService, servers) => {
-  ServersService.createServers(servers);
-  return _listServers(ServersService);
+export const _createServers = (serversService, servers) => {
+  serversService.createServers(servers);
+  return _listServers(serversService);
 };
-export const createServers = curry(_createServers)(ServersService);
+export const createServers = curry(_createServers)(serversService);

src/servers/services/ServersService.js

@@ -30,4 +30,5 @@ export class ServersService {
     );
 }
 
-export default new ServersService(Storage);
+const serversService = new ServersService(Storage);
+export default serversService;

test/servers/services/ServersService.test.js

@@ -0,0 +1,112 @@
+import { ServersService } from '../../../src/servers/services/ServersService';
+import sinon from 'sinon';
+import { last } from 'ramda';
+
+describe('ServersService', () => {
+  const servers = {
+    abc123: { id: 'abc123' },
+    def456: { id: 'def456' },
+  };
+  const createStorageMock = returnValue => ({
+    set: sinon.fake(),
+    get: sinon.fake.returns(returnValue),
+  });
+
+  describe('listServers', () => {
+    it('returns an empty object when servers are not found in storage', () => {
+      const storageMock = createStorageMock();
+      const service = new ServersService(storageMock);
+
+      const result = service.listServers();
+
+      expect(result).toEqual({});
+      expect(storageMock.get.callCount).toEqual(1);
+      expect(storageMock.set.callCount).toEqual(0);
+    });
+
+    it('returns value from storage when found', () => {
+      const storageMock = createStorageMock(servers);
+      const service = new ServersService(storageMock);
+
+      const result = service.listServers();
+
+      expect(result).toEqual(servers);
+      expect(storageMock.get.callCount).toEqual(1);
+      expect(storageMock.set.callCount).toEqual(0);
+    });
+  });
+
+  describe('findServerById', () => {
+    it('returns undefined when requested server is not found', () => {
+      const storageMock = createStorageMock(servers);
+      const service = new ServersService(storageMock);
+
+      const result = service.findServerById('ghi789');
+
+      expect(result).toBeUndefined();
+      expect(storageMock.get.callCount).toEqual(1);
+      expect(storageMock.set.callCount).toEqual(0);
+    });
+
+    it('returns server from list when found', () => {
+      const storageMock = createStorageMock(servers);
+      const service = new ServersService(storageMock);
+
+      const result = service.findServerById('abc123');
+
+      expect(result).toEqual({ id: 'abc123' });
+      expect(storageMock.get.callCount).toEqual(1);
+      expect(storageMock.set.callCount).toEqual(0);
+    });
+  });
+
+  describe('createServer', () => {
+    it('adds one server to the list', () => {
+      const storageMock = createStorageMock(servers);
+      const service = new ServersService(storageMock);
+
+      service.createServer({ id: 'ghi789' });
+
+      expect(storageMock.get.callCount).toEqual(1);
+      expect(storageMock.set.callCount).toEqual(1);
+      expect(last(storageMock.set.lastCall.args)).toEqual({
+        abc123: { id: 'abc123' },
+        def456: { id: 'def456' },
+        ghi789: { id: 'ghi789' },
+      });
+    });
+  });
+
+  describe('createServers', () => {
+    it('adds multiple servers to the list', () => {
+      const storageMock = createStorageMock(servers);
+      const service = new ServersService(storageMock);
+
+      service.createServers([{ id: 'ghi789' }, { id: 'jkl123' }]);
+
+      expect(storageMock.get.callCount).toEqual(1);
+      expect(storageMock.set.callCount).toEqual(1);
+      expect(last(storageMock.set.lastCall.args)).toEqual({
+        abc123: { id: 'abc123' },
+        def456: { id: 'def456' },
+        ghi789: { id: 'ghi789' },
+        jkl123: { id: 'jkl123' },
+      });
+    });
+  });
+
+  describe('deleteServer', () => {
+    it('removes one server from the list', () => {
+      const storageMock = createStorageMock(servers);
+      const service = new ServersService(storageMock);
+
+      service.deleteServer({ id: 'abc123' });
+
+      expect(storageMock.get.callCount).toEqual(1);
+      expect(storageMock.set.callCount).toEqual(1);
+      expect(last(storageMock.set.lastCall.args)).toEqual({
+        def456: { id: 'def456' },
+      });
+    });
+  });
+});