【发布时间】：2026-01-13 18:10:01
【问题描述】：
我正在 android studio 中制作应用程序。对于这个项目，我必须进行多个单元测试。但我不知道我可以对这个应用程序进行什么单元测试。我真的在单元测试方面苦苦挣扎，所以如果有人可以帮助我，或者想出一些我可以在我的项目中实现的单元测试，我将不胜感激。它是一个带有列表视图的应用程序，可以从 Web 服务中检索数据。
代码：
public class MainActivity extends AppCompatActivity {
ListView listView;
ArrayAdapter<String> adapter;
String[] data;
String[] waarde;
String[] hoog;
String[] laag;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = findViewById(R.id.listview);
StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().permitNetwork().build());
getData();
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(MainActivity.this, Showdata.class);
intent.putExtra("teeltbed", listView.getItemAtPosition(position).toString());
startActivity(intent);
}
});
}
private void getData()
{
String getData = null;
String dbResult = "empty";
dbConnect database = new dbConnect(this);
try{
String query = "SELECT * FROM Lamp";
getData = "?query=" + URLEncoder.encode(query, "UTF-8");
//data += "&username=" + URLEncoder.encode(userName, "UTF-8");
String link = "http://10.247.240.53/kas/lampen.php";
dbResult = database.execute(link).get();
}
catch (Exception e){
}
try{
JSONObject jsonObject = new JSONObject(dbResult);
JSONArray array = jsonObject.getJSONArray("Lamp");
waarde = new String[array.length()];
data = new String[array.length()];
hoog = new String[array.length()];
laag = new String[array.length()];
for (int i = 0; i < array.length(); i++)
{
jsonObject = array.getJSONObject(i);
data[i] = jsonObject.getString("teeltbed");
waarde[i] = "A: " + jsonObject.getString("waarde") + " %";
hoog[i] = "H: " + jsonObject.getString("hoog") + " W/m2";
laag[i] = "L: " + jsonObject.getString("laag") + " W/m2";
}
listView.setAdapter(new dataListAdapter(data, waarde, hoog, laag));
}
catch (Exception e)
{
e.printStackTrace();
}
}
class dataListAdapter extends BaseAdapter{
String[] data, waarde;
dataListAdapter(){
data = null;
waarde = null;
}
public dataListAdapter(String[] sdata, String[]swaarde, String[]shoog, String[]slaag)
{
data = sdata;
waarde = swaarde;
hoog = shoog;
laag = slaag;
}
public int getCount()
{
return data.length;
}
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
public View getView (int position, View convertView, ViewGroup parent)
{
LayoutInflater inflater = getLayoutInflater();
View row;
row = inflater.inflate(R.layout.layout_list, parent, false);
TextView t1, t2, t3, t4;
t1 = (TextView) row.findViewById(R.id.list_item);
t2 = (TextView) row.findViewById(R.id.list_item2);
t3 = (TextView) row.findViewById(R.id.list_item3);
t4 = (TextView) row.findViewById(R.id.list_item4);
t1.setText(data[position]);
t2.setText(waarde[position]);
t3.setText(hoog[position]);
t4.setText(laag[position]);
return (row);
}
}
class Sproeier
{
public int TeeltBed;
public String Stand;
public double Actueel;
public double Hoog;
public double Laag;
public void Sproeier()
{
int teeltbed;
double hoog;
double laag;
}
}
class Lamp {
}
public static class ScadaWebservice
{
}
class Kas
{
public void kas()
{
}
}
}
【问题讨论】：
-
经常对已编写的代码进行改进单元测试会导致“我无法对此进行单元测试”。首先用单元测试编写的代码是可测试的，因为它们会暴露钩子来创建测试。对于 Android UI 测试，您可以查看 developer.android.com/training/testing/fundamentals
-
单元测试只能在纯 java 类上实现（它不应包含任何与 android 相关的东西），因为您需要采用任何设计模式，因为 adnroid 架构组件也建议......我们有 mvvm 和mvp 你可以在 github 上查看 android blue prints 并查看 mvp 和 mvvm 的示例，它们也有单元和 espresso 测试用例
标签： java android unit-testing testing