[#1526] Fix failing FileNode test

Author: catarak

client/modules/IDE/components/FileNode.jsx

@@ -264,6 +264,7 @@ export class FileNode extends React.Component {
               aria-label={this.state.updatedName}
               className="sidebar__file-item-name"
               onClick={this.handleFileClick}
+              data-testid="file-name"
             >
               <FileName name={this.state.updatedName} />
             </button>

client/modules/IDE/components/FileNode.test.jsx

@@ -13,7 +13,7 @@ describe('<FileNode />', () => {
   };
 
   const expectFileNameToBe = async (expectedName) => {
-    const name = screen.getByLabelText(/Name/i);
+    const name = screen.getByTestId('file-name');
     await waitFor(() => within(name).queryByText(expectedName));
   };