packagecom.yidianling.ydl_pay;importorg.junit.Test;importstaticorg.junit.Assert.*;/** * Example local unit test, which will execute on the development machine (host). * * @see <a href="http://d.android.com/tools/testing">Testing documentation</a> */publicclassExampleUnitTest{@Testpublicvoidaddition_isCorrect(){assertEquals(4,2+2);}}