Mock lodash debounce to avoid test instability (#44592) (#44627)

jestjs/jest#3465
elastic · Sep 3, 2019 · 752eaea · 752eaea
1 parent ff674a6
commit 752eaea
Showing 1 changed file with 16 additions and 7 deletions.
diff --git a/src/legacy/ui/public/visualize/loader/embedded_visualize_handler.test.ts b/src/legacy/ui/public/visualize/loader/embedded_visualize_handler.test.ts
@@ -18,11 +18,11 @@
  */
 import { mockDataLoaderFetch, timefilter } from './embedded_visualize_handler.test.mocks';
 
+import _ from 'lodash';
 // @ts-ignore
 import MockState from '../../../../../fixtures/mock_state';
 import { RequestHandlerParams, Vis } from '../../vis';
 import { VisResponseData } from './types';
-
 import { Inspector } from '../../inspector';
 import { EmbeddedVisualizeHandler } from './embedded_visualize_handler';
 import { AggConfigs } from 'ui/vis/agg_configs';
@@ -49,6 +49,15 @@ describe('EmbeddedVisualizeHandler', () => {
   beforeEach(() => {
     jest.clearAllMocks();
 
+    jest.spyOn(_, 'debounce').mockImplementation(
+      // @ts-ignore
+      (f: Function) => {
+        // @ts-ignore
+        f.cancel = () => {};
+        return f;
+      }
+    );
+
     dataLoaderParams = {
       aggs: ([] as any) as AggConfigs,
       filters: undefined,
@@ -153,29 +162,29 @@ describe('EmbeddedVisualizeHandler', () => {
     it('should call dataLoader.render with updated timeRange', () => {
       const params = { timeRange: { foo: 'bar' } };
       handler.update(params);
-      jest.runAllTimers();
       expect(mockDataLoaderFetch).toHaveBeenCalled();
-      const { abortSignal, ...otherParams } = mockDataLoaderFetch.mock.calls[0][0];
+      const callIndex = mockDataLoaderFetch.mock.calls.length - 1;
+      const { abortSignal, ...otherParams } = mockDataLoaderFetch.mock.calls[callIndex][0];
       expect(abortSignal).toBeInstanceOf(AbortSignal);
       expect(otherParams).toEqual({ ...dataLoaderParams, ...params });
     });
 
     it('should call dataLoader.render with updated filters', () => {
       const params = { filters: [{ meta: { disabled: false } }] };
       handler.update(params);
-      jest.runAllTimers();
       expect(mockDataLoaderFetch).toHaveBeenCalled();
-      const { abortSignal, ...otherParams } = mockDataLoaderFetch.mock.calls[0][0];
+      const callIndex = mockDataLoaderFetch.mock.calls.length - 1;
+      const { abortSignal, ...otherParams } = mockDataLoaderFetch.mock.calls[callIndex][0];
       expect(abortSignal).toBeInstanceOf(AbortSignal);
       expect(otherParams).toEqual({ ...dataLoaderParams, ...params });
     });
 
     it('should call dataLoader.render with updated query', () => {
       const params = { query: { foo: 'bar' } };
       handler.update(params);
-      jest.runAllTimers();
       expect(mockDataLoaderFetch).toHaveBeenCalled();
-      const { abortSignal, ...otherParams } = mockDataLoaderFetch.mock.calls[0][0];
+      const callIndex = mockDataLoaderFetch.mock.calls.length - 1;
+      const { abortSignal, ...otherParams } = mockDataLoaderFetch.mock.calls[callIndex][0];
       expect(abortSignal).toBeInstanceOf(AbortSignal);
       expect(otherParams).toEqual({ ...dataLoaderParams, ...params });
     });