tests: extract mocks into separate module

src/datasource-zabbix/specs/datasource.spec.js

@@ -1,4 +1,5 @@
 import _ from 'lodash';
+import mocks from '../../test-setup/mocks';
 import { Datasource } from "../module";
 import { zabbixTemplateFormat } from "../datasource";
 
@@ -17,15 +18,11 @@ describe('ZabbixDatasource', () => {
         dbConnectionEnable: false
       }
     };
-    ctx.templateSrv = {};
-    ctx.backendSrv = {
-      datasourceRequest: jest.fn()
-    };
-    ctx.datasourceSrv = {};
-    ctx.zabbixAlertingSrv = {
-      setPanelAlertState: jest.fn(),
-      removeZabbixThreshold: jest.fn(),
-    };
+
+    ctx.templateSrv = mocks.templateSrvMock;
+    ctx.backendSrv = mocks.backendSrvMock;
+    ctx.datasourceSrv = mocks.datasourceSrvMock;
+    ctx.zabbixAlertingSrv = mocks.zabbixAlertingSrvMock;
 
     ctx.ds = new Datasource(ctx.instanceSettings, ctx.templateSrv, ctx.backendSrv, ctx.datasourceSrv, ctx.zabbixAlertingSrv);
   });

src/datasource-zabbix/specs/dbConnector.test.js

@@ -1,16 +1,12 @@
+import mocks from '../../test-setup/mocks';
 import DBConnector from '../zabbix/connectors/dbConnector';
 
 describe('DBConnector', () => {
   let ctx = {};
-  const backendSrvMock = {};
-  const datasourceSrvMock = {
-    loadDatasource: jest.fn().mockResolvedValue(
-      { id: 42, name: 'foo', meta: {} }
-    ),
-    getAll: jest.fn().mockReturnValue([
-      { id: 42, name: 'foo' }
-    ])
-  };
+  const backendSrv = mocks.backendSrvMock;
+  const datasourceSrv = mocks.datasourceSrvMock;
+  datasourceSrv.loadDatasource.mockResolvedValue({ id: 42, name: 'foo', meta: {} });
+  datasourceSrv.getAll.mockReturnValue([{ id: 42, name: 'foo' }]);
 
   describe('When init DB connector', () => {
     beforeEach(() => {
@@ -24,28 +20,28 @@ describe('DBConnector', () => {
       ctx.options = {
         datasourceName: 'bar'
       };
-      const dbConnector = new DBConnector(ctx.options, backendSrvMock, datasourceSrvMock);
+      const dbConnector = new DBConnector(ctx.options, backendSrv, datasourceSrv);
       dbConnector.loadDBDataSource();
-      expect(datasourceSrvMock.getAll).not.toHaveBeenCalled();
-      expect(datasourceSrvMock.loadDatasource).toHaveBeenCalledWith('bar');
+      expect(datasourceSrv.getAll).not.toHaveBeenCalled();
+      expect(datasourceSrv.loadDatasource).toHaveBeenCalledWith('bar');
     });
 
     it('should load datasource by id if name not present', () => {
-      const dbConnector = new DBConnector(ctx.options, backendSrvMock, datasourceSrvMock);
+      const dbConnector = new DBConnector(ctx.options, backendSrv, datasourceSrv);
       dbConnector.loadDBDataSource();
-      expect(datasourceSrvMock.getAll).toHaveBeenCalled();
-      expect(datasourceSrvMock.loadDatasource).toHaveBeenCalledWith('foo');
+      expect(datasourceSrv.getAll).toHaveBeenCalled();
+      expect(datasourceSrv.loadDatasource).toHaveBeenCalledWith('foo');
     });
 
     it('should throw error if no name and id specified', () => {
       ctx.options = {};
-      const dbConnector = new DBConnector(ctx.options, backendSrvMock, datasourceSrvMock);
+      const dbConnector = new DBConnector(ctx.options, backendSrv, datasourceSrv);
       return expect(dbConnector.loadDBDataSource()).rejects.toBe('SQL Data Source name should be specified');
     });
 
     it('should throw error if datasource with given id is not found', () => {
       ctx.options.datasourceId = 45;
-      const dbConnector = new DBConnector(ctx.options, backendSrvMock, datasourceSrvMock);
+      const dbConnector = new DBConnector(ctx.options, backendSrv, datasourceSrv);
       return expect(dbConnector.loadDBDataSource()).rejects.toBe('SQL Data Source with ID 45 not found');
     });
   });

src/test-setup/mocks.js

@@ -0,0 +1,26 @@
+export let templateSrvMock = {
+  replace: jest.fn().mockImplementation(query => query)
+};
+
+export let backendSrvMock = {
+  datasourceRequest: jest.fn()
+};
+
+export let datasourceSrvMock = {
+  loadDatasource: jest.fn(),
+  getAll: jest.fn()
+};
+
+export let zabbixAlertingSrvMock = {
+  setPanelAlertState: jest.fn(),
+  removeZabbixThreshold: jest.fn(),
+};
+
+const defaultExports = {
+  templateSrvMock,
+  backendSrvMock,
+  datasourceSrvMock,
+  zabbixAlertingSrvMock
+};
+
+export default defaultExports;