Fix jest tests

Author: Frederic Collonval

tests/test-components/FileList.spec.tsx

@@ -12,7 +12,6 @@ jest.mock('@jupyterlab/apputils');
 describe('FileList', () => {
   const props: IFileListProps = {
     model: null,
-    refresh: async () => {},
     renderMime: null,
     stagedFiles: [],
     unstagedFiles: [],
@@ -100,7 +99,7 @@ describe('FileList', () => {
       // Mock identity look up
       const identity = jest
         .spyOn(GitExtension.prototype, 'config')
-        .mockImplementation((options, path) => {
+        .mockImplementation(options => {
           let response: Response = null;
           if (options === undefined) {
             response = new Response(
@@ -151,7 +150,7 @@ describe('FileList', () => {
       // Mock identity look up
       const identity = jest
         .spyOn(GitExtension.prototype, 'config')
-        .mockImplementation((options, path) => {
+        .mockImplementation(options => {
           let response: Response = null;
           if (options === undefined) {
             response = new Response(
@@ -202,7 +201,7 @@ describe('FileList', () => {
       // Mock identity look up
       const identity = jest
         .spyOn(GitExtension.prototype, 'config')
-        .mockImplementation((options, path) => {
+        .mockImplementation(options => {
           let response: Response = null;
           if (options === undefined) {
             response = new Response(

tests/test-components/HistorySideBar.spec.tsx

@@ -22,7 +22,6 @@ describe('HistorySideBar', () => {
     branches: [],
     isExpanded: true,
     model: null,
-    refresh: () => Promise.resolve(),
     renderMime: null
   };
   test('renders commit nodes when expanded', () => {

tests/test-components/PastCommitNode.spec.tsx

@@ -49,7 +49,6 @@ describe('PastCommitNode', () => {
   const branches: Git.IBranch[] = notMatchingBranches.concat(matchingBranches);
   const props: IPastCommitNodeProps = {
     model: null,
-    refresh: async () => {},
     pastCommit: {
       commit: '2414721b194453f058079d897d13c4e377f92dc6',
       author: 'author',