fix refresh interval test

Author: huozhi

test/use-swr.test.tsx

@@ -543,41 +543,41 @@ describe('useSWR - refresh', () => {
       return new Promise(res => setTimeout(res, 150))
     })
     expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 2"`)
+    fireEvent.click(container.firstElementChild)
     await act(() => {
-      fireEvent.click(container.firstElementChild)
       // it will clear 200ms timer and setup a new 300ms timer
       return new Promise(res => setTimeout(res, 200))
     })
-    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 2"`)
+    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 3"`)
     await act(() => {
       return new Promise(res => setTimeout(res, 110))
     })
-    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 3"`)
+    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 4"`)
     await act(() => {
       // wait for new 300ms timer
       return new Promise(res => setTimeout(res, 310))
     })
-    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 4"`)
+    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 5"`)
+    fireEvent.click(container.firstElementChild)
     await act(() => {
-      fireEvent.click(container.firstElementChild)
       // it will clear 300ms timer and setup a new 400ms timer
       return new Promise(res => setTimeout(res, 300))
     })
-    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 4"`)
+    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 6"`)
     await act(() => {
       return new Promise(res => setTimeout(res, 110))
     })
-    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 5"`)
+    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 7"`)
+    fireEvent.click(container.firstElementChild)
     await act(() => {
-      fireEvent.click(container.firstElementChild)
       // it will clear 400ms timer and stop
       return new Promise(res => setTimeout(res, 110))
     })
-    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 5"`)
+    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 7"`)
     await act(() => {
       return new Promise(res => setTimeout(res, 110))
     })
-    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 5"`)
+    expect(container.firstChild.textContent).toMatchInlineSnapshot(`"count: 7"`)
   })
 
   it('should update data upon interval changes -- changes happened during revalidate', async () => {