test: js => ts (#39642)

tests/__mocks__/copy-to-clipboard.js

@@ -1,6 +0,0 @@
-function copy(str, options = {}) {
-  copy.lastStr = str;
-  copy.lastOptions = options;
-}
-
-export default copy;

tests/__mocks__/copy-to-clipboard.ts

@@ -0,0 +1,9 @@
+const copy: ((str?: string, options?: object) => void) & {
+  lastStr?: string;
+  lastOptions?: object;
+} = (str: string, options = {}) => {
+  copy.lastStr = str;
+  copy.lastOptions = options;
+};
+
+export default copy;

tests/__mocks__/rc-trigger.tsx

@@ -1,9 +1,12 @@
 import * as React from 'react';
 import Trigger from 'rc-trigger/lib/mock';
+import type { TriggerProps } from 'rc-trigger';
 import { TriggerMockContext } from '../shared/demoTestContext';
 
-export default React.forwardRef((props, ref) => {
+const ForwardTrigger = React.forwardRef<any, TriggerProps>((props, ref) => {
   const mergedPopupVisible = React.useContext(TriggerMockContext) ?? props.popupVisible;
-  global.triggerProps = props;
-  return <Trigger {...props} ref={ref} popupVisible={mergedPopupVisible} />;
+  (global as any).triggerProps = props;
+  return <Trigger {...props} ref={ref} popupVisible={mergedPopupVisible as boolean} />;
 });
+
+export default ForwardTrigger;

tests/__mocks__/rc-util/lib/Portal.ts

@@ -1,6 +1,8 @@
 import React from 'react';
 
-export default class Portal extends React.Component {
+class Portal extends React.Component<{ children?: React.ReactNode }> {
+  container: boolean;
+
   componentDidMount() {
     this.createContainer();
   }
@@ -18,3 +20,5 @@ export default class Portal extends React.Component {
     return null;
   }
 }
+
+export default Portal;