CODEWITHSUNDEEP
androidrobolectricandroid-testing
user2545386
user2545386

Reputation: 457

About Robolectric.When I have object not init in an activity, how can I test that activity?

When I write like this MyActivity activity = Robolectric.setupActivity(MyActivity.class);

It always throw like this:

java.lang.NullPointerException
    at com.printer.ui.activity.MyActivity.initView(MyActivity.java:309)
    at com.ui.activity.MyActivity.onCreate(MyActivity.java:114)

That line is like this: 

fileTextView.setText(AppUtil.getFileNameNoEx(AppConfig.printFile.getName()));

And AppConfig.printFile is null,how can I test that activity?

Upvotes: 2

Views: 117

Answers (1)

Eugen Martynov
Eugen Martynov

Reputation: 20140

So quick fix for your test do:

AppConfig.printFile = new File();
MyActivity activity = Robolectric.setupActivity(MyActivity.class);

The proper fix would be passing the path in activity intent:

public class MyActivity {
   public static final String FILE_PATH = "FILE_PATH";

   public void onCreate(Bundle bundle) {
      super.onCreate(bundle);

      String path = getIntent().getStringExtra(FILE_PATH);
      ...
   } 
   ...
}

Intent myActivityIntent = new Intent(this, MyActivity.class);
intent.putExtra(MyActivity.FILE_PATH, "path");
startActivity(intent);

Also try to avoid statics as much as possible http://www.endran.nl/blog/death-to-statics/

Upvotes: 1

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