Android JUnit Test Framework
Last Update:2015-07-18
Source: Internet
Author: User
<span id="Label3"></p><p><p>To unit test an application:</p></p><p><p>Using the JUnit test framework is a must-have technology for regular Android Development. Components can be obtained in junit to simulate the correctness of sending events and detecting program Processing.</p></p><p><p>1. Configure the instruction set and function library:</p></p><p><p>(1) Configuring the instruction set, specifying the application to be tested</p></p><p><p>You need to add Instrumentationtestrunner to the instrumentation in Androidmanifest.xml and specify the package name to Test.</p></p><p><p>Code is added in Androidmanifest.xml:</p></p><p><p><instrumentation android:targetpackage= "com.example.firstdemo" android:name= " Android.test.InstrumentationTestRunner "></instrumentation></p></p><p><p>(2) Configuration Function Library</p></p><p><p>Add <uses-library android:name= "android.test.runner"/> in application</p></p><p><p>(3) adding Junit's jar Package</p></p><p><p>Project Right-click-->build Path-->add library-->junit-->junit4--> OK</p></p><p><p>2. Write the unit test code (select the method name to test, right-click "Run as" ... "Android Junit Test")</p></p><p><p>Example Code:</p></p><pre><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">class</span></span>Testpersondb<span style="color: #0000ff;"><span style="color: #0000ff;">extends</span></span><span style="color: #000000;"><span style="color: #000000;">androidtestcase{</span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">testcreatedb () {personsqliteopenhelper Helper</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">Personsqliteopenhelper (getcontext ()); Sqlitedatabase DB</span></span>=<span style="color: #000000;"><span style="color: #000000;">Helper.getwritabledatabase (); } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">testadd () {PersonDao2 DAO</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">PersonDao2 (getcontext ());</span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">dao.add ("wangwu", "123",);</span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">dao.add ("zhangsan", "321", "a");</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">Long</span></span>num=8900000000000l<span style="color: #000000;"><span style="color: #000000;">; Random Random</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">Random (); </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> for</span>(<span style="color: #0000ff;"><span style="color: #0000ff;">int</span></span>i = 0; I < 50; i++<span style="color: #000000;"><span style="color: #000000;">) {dao.add (</span></span>"wangwu" +i, num+i+ "", random.nextint (5000<span style="color: #000000;"><span style="color: #000000;">)); } } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">testfind () {PersonDao2 DAO</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">PersonDao2 (getcontext ()); </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Boolean</span></span>Result=dao.find ("wangwu"<span style="color: #000000;"><span style="color: #000000;">); Assertequals (</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">true</span></span>, result);<span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">Assertion: The expected value is true, the true value is the result</span></span><span style="color: #000000;"><span style="color: #000000;"> } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">update () {PersonDao2 DAO</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">PersonDao2 (getcontext ()); Dao.update (</span></span>"wangwu", "321"<span style="color: #000000;"><span style="color: #000000;">); } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">delete () {PersonDao2 DAO</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">PersonDao2 (getcontext ()); Dao.delete (</span></span>"wangwu"<span style="color: #000000;"><span style="color: #000000;">); } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">findAll () {PersonDao2 DAO</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">PersonDao2 (getcontext ()); List</span></span><Person> persons=<span style="color: #000000;"><span style="color: #000000;">Dao.findall (); </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> for</span><span style="color: #000000;"><span style="color: #000000;">(person Person:persons) {System.out.println (person.tostring ()); } } </span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">Bank transfer in a transactional way</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">testtransaction () {personsqliteopenhelper Helper</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span><span style="color: #000000;"><span style="color: #000000;">Personsqliteopenhelper (getcontext ()); Sqlitedatabase DB</span></span>=<span style="color: #000000;"><span style="color: #000000;">Helper.getwritabledatabase (); Db.begintransaction (); </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Try</span></span><span style="color: #000000;"><span style="color: #000000;"> { </span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">These two execution codes are either successful</span> or Unsuccessful.</span>Db.execsql ("update person set account=account-1000 where name=?",<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span>object[]{"zhangsan"<span style="color: #000000;"><span style="color: #000000;">}); Db.execsql (</span></span>"update person set account=account+1000 where name=?",<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span>object[]{"wangwu"<span style="color: #000000;"><span style="color: #000000;">}); </span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">Mark database transaction execution succeeds, default execution is failed, data is not commit,</span> rollback</span><span style="color: #000000;"><span style="color: #000000;">db.settransactionsuccessful (); } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">finally</span></span><span style="color: #000000;"><span style="color: #000000;">{db.endtransaction (); Db.close (); } }}</span></span></pre><p><p></p></p><p><p>Android JUnit Test Framework</p></p></span>
