使用Espresso进行UI测试

 1 package com.example.lenovo.uitest;
 2 
 3 import android.support.test.rule.ActivityTestRule;
 4 import android.support.test.runner.AndroidJUnit4;
 5 import android.test.suitebuilder.annotation.LargeTest;
 6 
 7 import org.junit.Rule;
 8 import org.junit.Test;
 9 import org.junit.runner.RunWith;
10 
11 import static android.support.test.espresso.Espresso.onView;
12 import static android.support.test.espresso.action.ViewActions.click;
13 import static android.support.test.espresso.action.ViewActions.closeSoftKeyboard;
14 import static android.support.test.espresso.action.ViewActions.typeText;
15 import static android.support.test.espresso.assertion.ViewAssertions.matches;
16 import static android.support.test.espresso.matcher.ViewMatchers.withId;
17 import static android.support.test.espresso.matcher.ViewMatchers.withText;
18 
19 
20 @RunWith(AndroidJUnit4.class)
21 @LargeTest
22 public class MainActivityInstrumentedTest {
23     private static final String STRING_To_Be_TYPED = "Jason";
24     @Rule
25     public ActivityTestRule<MainActivity> mainActivityTestRule = new ActivityTestRule<MainActivity>(MainActivity.class);
26 
27     @Test
28     public void sayhello() {
29         onView(withId(R.id.editText)).perform(typeText(STRING_To_Be_TYPED), closeSoftKeyboard());
30         onView(withText("say hello")).perform(click());
31         String expectedText = "Hello," + STRING_To_Be_TYPED + "!";
32         onView(withId(R.id.textView)).check(matches(withText(expectedText)));
33 
34     }
35 }
点击测试类右击选择运行，若测试通过，出现：