From d43b1a875b5124d2a9be5577a56454dfa5a6a092 Mon Sep 17 00:00:00 2001
From: Liza K <liza.katz@elastic.co>
Date: Mon, 2 Sep 2019 12:20:49 +0300
Subject: [PATCH] Mock lodash debounce to avoid test instability
 https://github.com/facebook/jest/issues/3465

---
 .../loader/embedded_visualize_handler.test.ts | 23 +++++++++++++------
 1 file changed, 16 insertions(+), 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
index ba809ae86d7d6a..2cd06fa2dd98f3 100644
--- 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, AggConfig } from '../../vis';
 import { VisResponseData } from './types';
-
 import { Inspector } from '../../inspector';
 import { EmbeddedVisualizeHandler } from './embedded_visualize_handler';
 
@@ -48,6 +48,15 @@ describe('EmbeddedVisualizeHandler', () => {
   beforeEach(() => {
     jest.clearAllMocks();
 
+    jest.spyOn(_, 'debounce').mockImplementation(
+      // @ts-ignore
+      (f: Function) => {
+        // @ts-ignore
+        f.cancel = () => {};
+        return f;
+      }
+    );
+
     dataLoaderParams = {
       aggs: [] as AggConfig[],
       filters: undefined,
@@ -152,9 +161,9 @@ 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 });
     });
@@ -162,9 +171,9 @@ describe('EmbeddedVisualizeHandler', () => {
     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 });
     });
@@ -172,9 +181,9 @@ describe('EmbeddedVisualizeHandler', () => {
     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 });
     });