Providing test data for SharedPreferences for Robolectric

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Found out how – seems so obvious now!

For those who are interested, you just get the sharedPreferences, and populate it with the required data.

SharedPreferences sharedPreferences = ShadowPreferenceManager.getDefaultSharedPreferences(Robolectric.application.getApplicationContext());
sharedPreferences.edit().putString("testId", "12345").commit();

If you have a custom SharedPreferences, you should be able to do this (haven’t really tested properly, but should also work)

SharedPreferences sharedPreferences = Robolectric.application.getSharedPreferences("you_custom_pref_name", Context.MODE_PRIVATE);
sharedPreferences.edit().putString("testId", "12345").commit();

Hope this has helped someone 🙂

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