diff --git a/unitTestStudy/src/androidTest/java/com/example/testing/testingexample/EspressoTest.java b/unitTestStudy/src/androidTest/java/com/example/testing/testingexample/EspressoTest.java
index 6734236..5a1180b 100644
--- a/unitTestStudy/src/androidTest/java/com/example/testing/testingexample/EspressoTest.java
+++ b/unitTestStudy/src/androidTest/java/com/example/testing/testingexample/EspressoTest.java
@@ -37,6 +37,7 @@ public EspressoTest() {
    * 这样写会多写代码,并且会出错.
    * 比如此例,输入太慢了,程序就执行了.
    */
+  @Test
   public void testSayHello() {
     onView(withId(R.id.editText)).perform(typeText(STRING_TO_BE_TYPED),
         closeSoftKeyboard()); //line 1
@@ -46,4 +47,4 @@ public void testSayHello() {
     String expectedText = "Hello, " + STRING_TO_BE_TYPED + "!";
     onView(withId(R.id.textView)).check(matches(withText(expectedText))); //line 3
   }
-}
\ No newline at end of file
+}