![]() ![]() Demos are usually not time-limited (like Trial software) but the functionality is limited. In some cases, all the functionality is disabled until the license is purchased. Demoĭemo programs have a limited functionality for free, but charge for an advanced set of features or for the removal of advertisements from the program's interfaces. In some cases, ads may be show to the users. Basically, a product is offered Free to Play (Freemium) and the user can decide if he wants to pay the money (Premium) for additional features, services, virtual or physical goods that expand the functionality of the game. This license is commonly used for video games and it allows users to download and play the game for free. ![]() There are many different open source licenses but they all must comply with the Open Source Definition - in brief: the software can be freely used, modified and shared. Programs released under this license can be used at no cost for both personal and commercial purposes. Open Source software is software with source code that anyone can inspect, modify or enhance. Freeware products can be used free of charge for both personal and professional (commercial use). Freeware programs can be downloaded used free of charge and without any time limitations. Why use: import static .* What is the name of. ĥ4 Questions about JUnit 3 What are the 2 forms of every assert( )? ![]() Create a tool to perform tests and manage output.ġ1 JUnit does it! public class StackTest. The test code is mostly redundant "boiler plate" code. Would you write these tests for a real application? No way. Purse purse = new Purse(2) // can hold 2 coins // test insert and isFull methods boolean result = purse.insert( new Coin( 10 ) ) if ( ! result ) out.println("ERROR: insert failed") if ( purse.isFull() ) out.println("ERROR: full") balance = purse.getBalance( ) if ( balance != 10 ) out.println("ERROR: balance is wrong" ) if ( purse.withdraw(5) != null ) out.println("ERROR: withdraw is wrong") if ( purse.withdraw(10) = null ) out.println("ERROR: couldn't withdraw 10 Baht") ĩ Too Much Coding! A lot of code for a simple test. Purse + Purse( capacity ) + getCapacity( ) : int + getBalance( ) : int + isFull( ) : boolean + insert( Coin ) : boolean + withdraw( amount ) : Coin + count( ) : int insert returns true if coin is inserted. capacity is the number of coins (any type) that purse can hold You can insert and withdraw coins within capacity. It has a capacity that is fixed when the purse is created. Test continually! When To Test? - Test while you are writing the source code - Retest whenever you modify the source code Design Test Codeĭiscover & fix a defect early is much cheaper (100X) than to fix it after code is integrated. Confidence to make changes.Īgile Development philosophy Test early. Then write code that passes the tests Increase satisfaction. Test-driven development: write tests first. Validate software: does it match the specification? Programmers often recreate an error (that was already fixed) when they modify code. Prevent re-introduction of old errors (regression errors). Testing finds more errors than debugging. Saves time! Testing is faster than fixing "bugs".Ģ. Software testing is critical! Testing the specification Unit Testing - test one class Integration Testing - test components and application Acceptance Testing Usability Testing. Presentation on theme: "Unit Testing with JUnit"- Presentation transcript:
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