我正在尝试基于.json文件创建一些假对象。因此,我的项目的架构如下所示:
- MyProject
- app
---- src
-------- androidTest
------------ assets
---------------- FirstObject.json
---------------- SecondObject.json
------------ java
-------- main
-------- test
我正在使用Espresso进行测试,并且.json
文件assets
夹下有一些文件。
我的测试课看起来像这样:
@RunWith(AndroidJUnit4.class)
public class LocatingActivityTest
{
@Rule
public ActivityTestRule<BookingActivity> mActivityTestRule = new ActivityTestRule<>(BookingActivity.class);
private BookingActivity mBookingActivity;
@Before
public void setup()
{
mBookingActivity = mActivityTestRule.getActivity();
}
@Test
public void viewsMustBeVisible()
{
onView(withId(R.id.fab_booking)).perform(click());
onView(withId(R.id.booking_book_now)).check(matches(not(isEnabled())));
mBookingActivity.setTestBooking(BookingTest.getStandardFlight(),
MyServiceProvider.getServices1(mBookingActivity), // <= Problem
true,
MyServiceProvider.getServices2(mBookingActivity), // <= Problem
MyServiceProvider.getServices3(mBookingActivity)); // <= Problem
onView(withId(R.id.booking_book_now)).check(matches(isEnabled()));
onView(withId(R.id.booking_book_now)).perform(click());
onView(withId(R.id.text)).check(matches(isCompletelyDisplayed()));
onView(withId(R.id.sonarView)).check(matches(isCompletelyDisplayed()));
onView(withId(R.id.cancel_booking)).check(matches(isCompletelyDisplayed()));
}
}
问题出在我MyServiceProvider
班上:
public final class MyServiceProvider
{
public static List<FlightType> getServices1(Context context)
{
try
{
InputStream inputStream = context.getAssets().open("FlightTypes.json");
String jsonString = read(inputStream);
Log.e("XXX", "getServices1() => " + jsonString);
Type listType = new TypeToken<List<FlightType>>(){}.getType();
List<FlightType> flightTypeList = new Gson().fromJson(jsonString, listType);
return flightTypeList;
}
catch (IOException e)
{
e.printStackTrace();
}
return null;
}
private static String read(InputStream inputStream) throws IOException
{
StringWriter writer = new StringWriter();
IOUtils.copy(inputStream, writer, "UTF-8");
return writer.toString();
}
.
.
.
}
由于某些原因InputStream inputStream = context.getAssets().open("FlightTypes.json");
,无法打开json文件并引发异常。这是我的日志:
02-17 21:00:58.984 5686-5706/com.xxx.xxx W/System.err: java.io.FileNotFoundException: FlightTypes.json
02-17 21:00:58.984 5686-5706/com.xxx.xxx W/System.err: at android.content.res.AssetManager.openAsset(Native Method)
02-17 21:00:58.984 5686-5706/com.xxx.xxx W/System.err: at android.content.res.AssetManager.open(AssetManager.java:313)
02-17 21:00:58.984 5686-5706/com.xxx.xxx W/System.err: at android.content.res.AssetManager.open(AssetManager.java:287)
02-17 21:00:58.984 5686-5706/com.xxx.xxx W/System.err: at com.xxx.xxx.utility.MyServiceProvider.getServices1(MyServiceProvider.java:31)
不要将活动作为上下文传递。而是通过InstrumentationRegistry.getContext()
看看是否有帮助。
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