Espresso android -- Evoke assert? (NOT a view assert)

Question

I'm looking to do a simple test. I just want my espresso test script to verify that I'm not on production. Bad things happen if I run a purchase on production, let alone lots them.. I know in Java you need to add a -ae to run assertions. Which doesn't seem to be as simple in an android espresso test. I'll be handing this code off to the testers so I really really need it to fail if it's on the production. (obviously I'll wrap it in an IF, but I want it to be more ugly -- you messed up -- kinda thing.)

public class PurchaseTest  extends BaseFooTest<HomeActivity> //ActivityInstrumentationTestCase2<LoginRegisterActivity>
{

final static String TAG = "PurchaseTest";
static final String PROD_URL = "https://api.foobar.com";
public PurchaseTest()
{
    super(HomeActivity.class);
}

public void test()
{

    System.out.println(fooApplication.hostUrl);
    assert fooApplication.hostUrl.equalsIgnoreCase(PROD_URL) == false;
    assert fooApplication.hostUrl.equalsIgnoreCase(PROD_URL) == true;
//       No assert! Not being read then!

}

////////////////////// boss mans code, that the class is extending, I don't think it matter, but included it incase the extends basefootest confused someone.

   public class BaseFooTest<T extends Activity> extends ActivityInstrumentationTestCase2
   {
   public BaseFooTest( Class<T> activityClass )
   {
       super( activityClass );
   }

   @Override
   public void setUp() throws Exception
   {
        super.setUp();
        getActivity();
        tryClickOk();
    }

    protected ViewAssertion isDisplayed()
    {
        return ViewAssertions.matches( ViewMatchers.isDisplayed() );
    }

    protected void tryClickOk()
    {
        try
        {
            onView( withText( "OK" ) ).perform( click() );
        }
        catch ( NoMatchingViewException e )
        {
        // Eat it
        // System.out.print( e );
        }

    }
}

`assertTrue` etc. are normally used in JUnit tests rather than plain java asserts. Any reason you don't want to use them? — Daniel Lubarov, Mar 14 '15 at 04:19
Nope, the intro to espresso didn't tell me to treat it like jUnit, so thats what I needed to know. Make it an answer and I'll vote it up. — StarWind0, Mar 16 '15 at 16:42

score 4 · Accepted Answer · edited May 23 '17 at 12:24

4

It's possible to enable keyword asserts, but it requires a manual step, and it would be unusual to use keyword asserts in test code.

It's best to use the JUnit methods (assertTrue, etc.) as you would in unit tests.

edited May 23 '17 at 12:24

Community

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answered Mar 16 '15 at 17:18

Daniel Lubarov

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Thank you ! I was wondering why, Kotlin, my `assert(condition) { "lazy message" }` would not halt the test when one of them fails !! – Mackovich Jul 07 '20 at 12:54

Espresso android -- Evoke assert? (NOT a view assert)

1 Answers1