How to perform android unit testing

How to perform android unit testing

 
 

1. Add the following to menifest. xml:
   

   <Application>Add:
   

   <Uses-library Android: Name = "android. Test. Runner"/>
   

   <Application>Join outside:
   

   <Uses-Permission Android: Name = "android. Permission. run_instrumentation"/>
   

   <Instrumentation Android: Name = "android. Test. instrumentationtestrunner" Android: targetpackage = "name. feisky. Android. test"
   

   Android: Label = "test for my app"/>
   

2. Write unit test code: it must inherit from androidtestcase class
   

   Package name. feisky. Android. test;
   

    
    

   Import Android. Test. androidtestcase;
   

   Import JUnit. Framework. Assert;
   

    
    

   Public class mytest extends androidtestcase {
   

   Private Static final string tag = "mytest ";
   

    
    

   Public void testsave () throws throwable
   

   {
   

   Int I = 4 + 8;
   

   Assert. assertequals (5, I );
   

   }
   

    
    

   Public void testsomethingelse () throws throwable {
   

   Assert. asserttrue (1 + 1 = 12 );
   

   }
   

    
    

   }
   

3. Run the test
   

   IntellijMedium:
   

   
   

    
    

   
   

   In eclipse: Right-click Run as Android JUnit Test
   

   
   

   Command line tool:
   

   ADB shell am instrument-W name. feisky. Android. Test/Android. Test. instrumentationtestrunner
   

    
    

You can also create a test project for testing.

 
 

1. New>Project>Android>Android test project.
   
   

1. Add test case class
   
   

   Add a new class and set the base class to Android. Test. activityinstrumentationtestcase2
   

2. Add Constructor
   

   Add setup () method, which initializes variables and test environments before all tests.
   

   
   @ Override
   

   Protected
   Void setup ()
   Throws
   Exception
   {
   

   Super. Setup ();
   

   Mactivity =
   This. getactivity ();
   

   Mview =
   (Textview) mactivity. findviewbyid (COM. example. helloandroid. R. Id. textview );
   

   Resourcestring = mactivity. getstring (COM. example. helloandroid. R. String. Hello );
   

   }
   

3. Add the testpreconditions () method, check the initialization environment, and only execute once
   

   Public
   Void testpreconditions ()
   {
   

   Assertnotnull (mview );
   

   }
   

4. Add Unit Test
   

   
   Public
   Void testtext ()
   {
   

   Assertequals (resourcestring, (string) mview. gettext ());
   

   }
   

5. Test Run as...> Android JUnit Test