#MainTest

'界面设计'

………

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Hello Word"

android:id="@+id/textView"

android:textSize="20dp"/>

<EditText

android:hint="Enter your name here"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/editText"

android:textSize="20dp"

android:layout_below="@+id/textView"

android:layout_alignParentRight="true"

android:layout_alignParentEnd="true" />

<Button

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="Say Hello"

android:id="@+id^tton"

android:textSize="50dp"

android:layout_marginTop="67dp"

android:layout_below="@+id/editText"

android:layout_alignParentRight="true"

android:layout_alignParentEnd="true" />

………

'界面代码'

………

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

private TextView textView;

private EditText editText;

private Button button;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);textView= (TextView) findViewById(R.id.textView);

editText= (EditText) findViewById(R.id.editText);

button= (Button) findViewById(R.id.button);

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

editText.setText(textView.getText().toString());

}

});

}

………

'代码测试'

………

package com.example.administrator.main;

import android.app.Activity;

import android.test.ActivityTestCase;

import junit.framework.TestCase;

import java.text.RuleBasedCollator;

/**

* Created by Administrator on 2017/3/16

*/

public class MainActivityTest extends TestCase {

private static final String STRING_TO_BE_TYPED="Peter";

public ActivityTestCaseRule<MainActivity> mainActivityRule=new ActivityTestRule<>(MainActivity);

public void sayhello() {

onView(withId(R.id.editText)).perform(typeText(STRING_TO_BE_TYPED)).closeSoftKeyboard;

String expectedText="Hello,"+STRING_TO_BE_TYPED+"!";

onView(withId(R.Id.textView)).check(matches(withText(expectedText)));

}

}