如何编写需要Android上下文的集成测试？

Question

For example, testing input/output to an image file. To create the file, the following code is used (summary):

 File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
 File image = File.createTempFile("tempImage",".jpg",storageDir);
 mCurrentPhotoPath = image.getAbsolutePath();
 mCurrentPhotoURI = FileProvider.getUriForFile(this,"com.example.android.fileprovider",image);
 File photoFile = image;

When I try to write an integration test using this code to create a file, I have issues with the getExternalFilesDir and this (which is a context). How can I effectively test without having an activity or context to pass? Can I generate one?

Answer 1

在工具测试中， InstrumentationRegistry.getTargetContext()返回要测试的程序包的Context 。