浓咖啡动态微调试验

Question

我正在尝试测试动态生成的Spinner.我能够点击微调器然后我需要从列表中选择一个显示给定文本的选项(我从hierarchyviewer中发现PopupWindow显示但是无法获得所需的文本,这是在屏幕外) .微调器使用自定义对象的ArrayAdapter(下面的代码),

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Spinner mySpinner = (Spinner) findViewById(R.id.my_spinner);
        List<MyValue> list = Arrays.asList(
                new MyValue("One", "1"),
                new MyValue("Two", "2"),
                new MyValue("Three", "3"),
                new MyValue("Four", "4"),
                new MyValue("Five", "5"),
                new MyValue("Six", "6"),
                new MyValue("Seven", "7"),
                new MyValue("Eight", "8"),
                new MyValue("Nine", "9"),
                new MyValue("Ten", "10"),
                new MyValue("Eleven", "11"),
                new MyValue("Twelve", "12"),
                new MyValue("Thirteen", "13"),
                new MyValue("Fourteen", "14"),
                new MyValue("Fifteen", "15"),
                new MyValue("Sixteen", "16"),
                new MyValue("Seventeen", "17"),
                new MyValue("Eighteen", "18"),
                new MyValue("Nineteen", "19"),
                new MyValue("Twenty", "20"),
                new MyValue("Twenty One", "21")
        );

        final ArrayAdapter<MyValue> adapter = new ArrayAdapter<>(this,
                R.layout.dropdown_selected_item,
                list);
        mySpinner.setAdapter(adapter);
        mySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                Log.d("MySpinnerTest", "current = " + adapter.getItem(position));
            }
            @Override
            public void onNothingSelected(AdapterView<?> parent) {}
        });
    }

    public class MyValue {
        String name;
        String code;

        public MyValue(String name, String code) {
            this.name = name;
            this.code = code;
        }

        @Override
        public String toString() {
            return name;
        }
    }
}

我试过onData(withSpinnerText("Twenty")).perform(click())但得到一个PerformException,我试图找出如何匹配基于给定文本的正确视图,在微调器弹出窗口,但无法弄清楚如何做到这一点.

任何帮助将不胜感激.

TIA

Answer 1

找到了一种方法来做到这一点，因此发布了我自己问题的答案。

我必须为我的对象创建一个自定义匹配器，然后将其与onData()

public static Matcher<Object> withMyValue(final String expectedName) {
    return new BoundedMatcher<Object, MyValue>(MyValue.class) {

        @Override
        public void describeTo(Description description) {
            description.appendText("with expectedName: " + expectedName);
        }

        @Override
        protected boolean matchesSafely(MyValue myValue) {
            return myValue.getName().equalsIgnoreCase(expectedName);
        }
    };
}

然后可以用作（单击微调器显示下拉列表后）

onData(withMyValue(field.name)).perform(click());