Simple unit test for Android

I have accumulated many articles recentlyArticleIt hasn't been released yet. It's very late today. Let's write it here. Do not forget the notes of the articles to be sent!

As follows:
Google location, add tags!
SQLite database operations and Summary of data storage (SQLite, Bundel, sharedpreferences)

QR code encoding and decoding, zxing uses full resolution

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Now let's get down to the point. Here I will briefly talk about unit testing!

 

1. Create a test project:
Create an android test project
Select the project you want to test in test target.
2. Create a test class
Inherit activityinsrumentationtestcase2 <Helloworld> is the activity you want to test in the project.
Iii. Write TestCode
The method starts with test, such as testabc and testtank. Note the naming rules.

Code:

 

Code

Package Com. example. Android. test;

ImportAndroid. Test. activityinstrumentationtestcase2;
ImportAndroid. widget. textview;

ImportCom. example. Android. helloworld;

PublicClassHellotestExtendsActivityinstrumentationtestcase2<Helloworld>{

private helloworld mactivity; // the activity under test
private textview mview; /// the activity's textview (the only view)
private string resourcestring;

PublicHellotest (){
Super("Com. example. Android", Helloworld.Class);//Class

//Todo auto-generated constructor stub
}

@ Override
Protected Void Setup () Throws Exception {
Super . Setup ();
Mactivity = This . Getactivity (); // Obtains the activity instance of the class passed in by the constructor.
Mview = (Textview) mactivity
.Findviewbyid(com.example.android.r.id.txt ); // Get the view object in the helloworld project.
Resourcestring = Mactivity
. Getstring (COM. example. Android. R. String. Hello );
// Resourcestring = "tank ";
}
Public Void Testtext (){
Assertequals (resourcestring, (string) mview. gettext ()); // Whether the value of textview is the expected value (yes, actually)
}
Public Void Testpreconditions (){
Assertnotnull (mview ); // Judge whether it is null
}

}

Assert class encapsulates a lot of methods to provide our test use, you can view the source code, clear follow me a few articles have talked about in myeclipse to view the source code method http://www.cnblogs.com/tankaixiong/archive/2010/10/20/1856899.html
Method list: asserttrue (), assertfalse (), assertsame (), assertnull ()............

The test result is as follows: