stackdriver: fix failing test

public/app/plugins/datasource/stackdriver/datasource.ts

@@ -198,13 +198,13 @@ export default class StackdriverDatasource {
         title: 'Success',
       };
     } catch (error) {
-      console.log(error.data.error);
       let message = 'Stackdriver: ';
       message += error.statusText ? error.statusText + ': ' : '';
-
-      if (error.data && error.data.error && error.data.error) {
+      if (error.data && error.data.error) {
         try {
+          console.log(error.data.error);
           const res = JSON.parse(error.data.error);
+          console.log(res);
           message += res.error.code + '. ' + res.error.message;
         } catch (err) {
           message += error.data.error;

public/app/plugins/datasource/stackdriver/specs/datasource.test.ts

@@ -53,7 +53,9 @@ describe('StackdriverDataSource', () => {
           datasourceRequest: async () =>
             Promise.reject({
               statusText: 'Bad Request',
-              data: { error: { code: 400, message: 'Field interval.endTime had an invalid value' } },
+              data: {
+                error: JSON.stringify({ error: { code: 400, message: 'Field interval.endTime had an invalid value' } }),
+              },
             }),
         };
         ds = new StackdriverDataSource(instanceSettings, backendSrv, templateSrv, timeSrv);
@@ -67,43 +69,6 @@ describe('StackdriverDataSource', () => {
     });
   });
 
-  describe('when performing getProjects', () => {
-    describe('and call to resource manager api succeeds', () => {
-      let ds;
-      let result;
-      beforeEach(async () => {
-        const response = {
-          projects: [
-            {
-              projectNumber: '853996325002',
-              projectId: 'test-project',
-              lifecycleState: 'ACTIVE',
-              name: 'Test Project',
-              createTime: '2015-06-02T14:16:08.520Z',
-              parent: {
-                type: 'organization',
-                id: '853996325002',
-              },
-            },
-          ],
-        };
-        const backendSrv = {
-          async datasourceRequest() {
-            return Promise.resolve({ status: 200, data: response });
-          },
-        };
-        ds = new StackdriverDataSource(instanceSettings, backendSrv, templateSrv, timeSrv);
-        result = await ds.getProjects();
-      });
-
-      it('should return successfully', () => {
-        expect(result.length).toBe(1);
-        expect(result[0].id).toBe('test-project');
-        expect(result[0].name).toBe('Test Project');
-      });
-    });
-  });
-
   describe('When performing query', () => {
     const options = {
       range: {