diff --git a/app/test/test_bug551_DingZeYu.py b/app/test/test_bug551_DingZeYu.py
deleted file mode 100644
index 799a562..0000000
--- a/app/test/test_bug551_DingZeYu.py
+++ /dev/null
@@ -1,26 +0,0 @@
-import time
-import pytest
-from selenium import webdriver
-from selenium.webdriver import ActionChains
-from selenium.webdriver.common.by import By
-
-
-def test_bug551():
-    driver = webdriver.Edge()
-    driver.maximize_window()
-    driver.get("http://127.0.0.1:5000/")
-
-    driver.find_element(By.CSS_SELECTOR, 'a[href="/login"]').click()
-    driver.find_element(By.CLASS_NAME, 'username').send_keys('dzy')
-    driver.find_element(By.CLASS_NAME, 'password').send_keys('123456')
-    driver.find_element(By.CLASS_NAME, 'btn').click()
-
-    article = driver.find_element(By.ID, 'article')
-    actions = ActionChains(driver)
-
-    actions.move_to_element(article)
-    actions.click_and_hold()
-    actions.move_by_offset(450, 200)
-    actions.release()
-    actions.perform()
-    time.sleep(5)