Dave Lloyd www.ObjectSharp.com/Blogs/Dave www.ObjectSharp.com/Blogs/Dave Unit Testing in the Real World.

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Presentation transcript:

Dave Lloyd Unit Testing in the Real World

Anatomy of a Test Fixture Beware of the.VSMDI Using the.testrunconfig Expected Exceptions Data Driven Tests Mock Objects Ignore & Inconclusive Test Driven Development Static Code Analysis and Code Coverage

Test Class and Test Method TestContext Property

Meta Data for Test Manager Must have VS for Testers or Team Suite Not a part of VS for Developers Don’t Merge this file! To add tests to a Team Build you need this file

Creating and using your own Deployment Code Coverage Setup and Cleanup Batch Files

ExpectedException Attribute Validate the correct Exception was raised

DataSource Attribute Execute a test using test data

The Crash Test Dummies of Unit Testing Simulated Object Same Interface as the Real Object Why Create a Mock Object Real one doesn’t exist yet Difficult to produce within a test

Ignore Tell VSTS to ignore a test Assert.Inconclusive Show test in test results with message Reminder of an Inconclusive Test

Available in C# The Process Write a Test Execute and see it fail Write the code Execute the test and see it pass Smart Tag allowing you to Generate a method Stub in the code being tested

Blogs on TDD: James Newkirk - blogs.msdn.com/jamesnewkirk Brian Marick - Jonathan de Halleux - Jose Almeida - blogs.msdn.com/josealmeida/ Scott Densmore – blogs.msdn.com/scottdensmore Code Project - TestDriven.com - Books: Test-Driven Development in Microsoft.Net By James W. Newkirk & Alexei A. Vorontsov Test Driven Development: A Practical Guide By David Astels Test Driven Development: by Example By Kent Beck

Unit Testing in the Real World Dave Lloyd Partner, ObjectSharp Consulting

Assert CollectionAssert To Compare Collections of Objects StringAssert To Compare Strings

UnitTestAssertException Base Exception AssertFailesException Thrown when an Assertion Fails AssertInconclusiveException Test is not complete InternalTestFailureException Internal failure for a test

Unit Testing in the Real World Dave Lloyd