Android test raw resource

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I have the following folder structure in Android Studio:

??? androidTest
?   ??? java
?   ??? res
?   ??? raw
?   ??? test_file
??? main
??? java
??? res
??? raw
  
??? app_file

I’m trying to access the test_file resource which exists in the raw folder of the androidTest elements. Here’s the code inside a Robotium test case that inherits from ActivityInstrumentationTestCase2:

InputStream is = this.getInstrumentation()
.getContext()
.getResources()
.openRawResource(R.raw.test_file);

Android Studio throws a reference error since the resource cannot be found. The exact error is “Cannot resolve symbol test_file”.

How can I reference this resource form a test case, which exists on the androidTest resources bundle?

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By default your androidTest project will include your app’s R class, but androidTest’s resources will be generated into a separate file. Make sure you import the R class from your test project:

import com.your.package.test.R;
[..]
getInstrumentation
().getContext().getResources().openRawResource(R.raw.test_file);

You can also directly reference the test project’s R class:

getInstrumentation().getContext().getResources().openRawResource(com.your.package.test.R.raw.test_file);
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