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6 Articles match "Unit Testing"
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"Unit Testing"
| The Latest from Llewellyn Falco | MORE | | This (new) developers life Test Driven Development (TDD) A clearly stated problem, constant feedback, and regression about twice every minute! The journey of a Million lines starts with a single Unit Test.” Today I discovered the podcast “ This Developer’s Life ”. It’s a very differently crafted podcast. Very true to the style of "This American Life” that it’s name is borrowed from. It is more in a story telling venue, better production quality, not about API’s or even craftsmanship, but rather “common” themes to lives programmers. listened to Episode’s “ Play ” & “ Problems ”. No smaller. DevelopMentor Courses - Sunday, January 22, 2012 Test-Driven Cameras wish people had this same reaction to the idea of writing code without first writing tests (TDD). Tests give you the chance: To see what you are going to write, BEFORE you write it. If you haven’t already, here’s a great place to start learning to Test-Driven Development ? If you are already writing tests, here’s a free library to make test even easier to write? Unit Testing TDDI am getting old. The other day I was hanging around with my friend, Ike Ellis. He told me a story about his kids. The first question they asked was “Where is the picture?” DevelopMentor Courses - Wednesday, September 7, 2011 Theory Based Testing Most of us are familiar with classic unit testing. Today, I wanted to talk a about a different form of unit testing, that is much more powerful when it is possible. Theory based test take the normal form of Given A & B expect C and change it to Given A & B expect C theory This removal of the expected C, allows you to test MANY more cases, because you don't need to pre-plan the results for a given A & B I vBlogged my thoughts here: btw: if you are interested in attending an open spaces, check out Open Agile So Cal. 11, 2010 DevelopMentor Courses - Tuesday, September 14, 2010 | | The Best from Llewellyn Falco | MORE | | Test-Driven Cameras wish people had this same reaction to the idea of writing code without first writing tests (TDD). Tests give you the chance: To see what you are going to write, BEFORE you write it. If you haven’t already, here’s a great place to start learning to Test-Driven Development ? If you are already writing tests, here’s a free library to make test even easier to write? Unit Testing TDDI am getting old. The other day I was hanging around with my friend, Ike Ellis. He told me a story about his kids. The first question they asked was “Where is the picture?” DevelopMentor Courses - Wednesday, September 7, 2011 This (new) developers life Test Driven Development (TDD) A clearly stated problem, constant feedback, and regression about twice every minute! The journey of a Million lines starts with a single Unit Test.” Today I discovered the podcast “ This Developer’s Life ”. It’s a very differently crafted podcast. Very true to the style of "This American Life” that it’s name is borrowed from. It is more in a story telling venue, better production quality, not about API’s or even craftsmanship, but rather “common” themes to lives programmers. listened to Episode’s “ Play ” & “ Problems ”. No smaller. DevelopMentor Courses - Sunday, January 22, 2012 Theory Based Testing Most of us are familiar with classic unit testing. Today, I wanted to talk a about a different form of unit testing, that is much more powerful when it is possible. Theory based test take the normal form of Given A & B expect C and change it to Given A & B expect C theory This removal of the expected C, allows you to test MANY more cases, because you don't need to pre-plan the results for a given A & B I vBlogged my thoughts here: btw: if you are interested in attending an open spaces, check out Open Agile So Cal. 11, 2010 DevelopMentor Courses - Tuesday, September 14, 2010 | - Approval Tests (a pictures worth a 1000 tests)
Scenario 1 [Testing a User Interface] Core Concept : Component gui = createGui(); Approvals.approve(gui); This creates a snap shot of the gui: gui.received.png This passes if gui.received.png == gui.approved.png If you like the result, simply rename gui.received.png -> gui.approved.png and the test will pass. a picture is worth a 1000 tests”. Ever find that your unit tests aren’t giving you enough security? Ever find your tests test too many things and the maintenance required to change anything is actually reducing your agility? oh wait! Llewellyn Falco - Monday, October 13, 2008 - Mock Smells
Mocks let you test implementation. Since there are literally 1,000’s of way to program the exact same behavior, Unit tests that lock a particular implementation will actually in up “protecting” your code from being refactored. This smell tends to come up in newly written code, and is usually accompanied by the phrase “ anytime I want to change anything a bunch of tests break and I have to go and fix them”. Of course if your nose is prickling over some hard to test piece of code, grab your mocking framework. usually write my own mocks. agree with this. Llewellyn Falco - Saturday, January 16, 2010 - Locking down legacy code.
So let’s look at the situation where we have a block of code that’s run, but not unit tested. o = calculateSomething(a,b); } now let’s say we wanted to refactor calculateSomething, but it’s dangerous to do that, since we aren’t sure the tests will assert against the changes we might make. For example the test testSomeBlock() { new SomeObject().someBlock(); Theory based testing. There are many great examples that look like someBlock() {. Even if the code coverage is 100%, that doesn’t guarantee that the asserts are 100%. 1) ‘peel’ the function. Case 2. Case 3. Llewellyn Falco - Wednesday, September 24, 2008 %>
102 Articles match "Unit Testing"
See all articles with
"Unit Testing"
| The Latest from DevelopMentor | MORE | | Testing triangles, pyramids and circles, and UAT 'A few months ago Markus Gartner introduced me to the Testing Triangle, or Testing Pyramid. It looks like this: If you Google you will find a few slightly different version and some go by the name of Testing Pyramid. This triangle is actually pretty similar to a diagram I’ve been drawing for a while when I do Agile training: But it occurs to me the triangle should be pushed to the side, and when you do that you can add some axis which add more information: At the base the, Unit Tests, there are lots and lots of tests and they typically execute in milliseconds. Allan Kelly's Blog - Friday, May 24, 2013 Unit testing code depending on the ASP.NET #WebApi HttpClient 'In a previous post I showed how to unit test an ASP.NET WebAPI Controller. Assuming for a moment the client part is also written in C# we should test that as well. Testing the BooksClient class. If we want to test this class we need to pass in an HttpClient object. This might not sound like a big deal but as this class doesn’t implement an interface we can’t use most of the standard mocking frameworks like Moq to replace the HttpClient with a test fake. Testing the GetBooks() function. test is pretty simple. Testing am HTTP POST action. The Problem Solver - Monday, May 20, 2013 Unit testing a ASP.NET WebAPI controller Testing a simple ApiController that gets data Suppose we have the following ASP.NET WebAPI Controller with two Get methods, the first returns the complete list of books and the second returns the book with the requested ID. Testing the Get() method. The Get() method that returns all books is easy enough to test. Testing the Get(id) method. Testing for getting with an invalid ID is equally simple: 1: [TestMethod]. Testing an HTTP PUT operation. Testing an update using an HTTP put is just as simple as a testing a get action. 8: 9: }. 11: {. The Problem Solver - Sunday, May 12, 2013 | -
| The Best from DevelopMentor | MORE | - Significant Advances in Unit Testing Windows Workflow
This post describes a unit testing library for testing Windows Workflow Foundations. Rather it's a library that can be used in conjunction with any of these testing frameworks. Download the library with sample test project here: Kennedy.WorkflowTesting.zip (216 KB). First a Little History: Last September I posted this teaser entitled Unit Testing Coming to a Workflow Near You. In that previous post, I highlighted what I could determine to be the current state-of-the-art with regard to unit testing workflows, circa September 2008. Michael C. Kennedy's Weblog - Sunday, January 18, 2009 - Article: Avoiding 5 Common Pitfalls in Unit Testing
Llewellyn Falco and I recently wrote an article for DevelopMentor's Developments newsletter entitled Avoiding 5 Common Pitfalls in Unit Testing. Avoiding 5 Common Pitfalls in Unit Testing. When I started out with unit tests, I was enthralled with the promise of ease and security that they would bring to my projects. In practice, however, the theory of sustainable software through unit tests started to break down. Unit Tests have become more trouble than they are worth.". When tests would stop working, we just ignored them. Michael C. Kennedy's Weblog - Thursday, August 6, 2009 - Unit Testing Coming to a Workflow Near You
[Update: See the follow up post "Significant Advances in Unit Testing Windows Workflow" ]. However you won't find very much support for Test Driven Development (TDD) or unit testing in general. In fact the architecture that makes Windows Workflow powerful (strict separation of workflow, activities, and the host for example) really gets in the way of unit tests. There has been some work done on unit testing Windows Workflows. Here's some links: Unit Testing Activities with Windows Workflow Foundation by Ron Jacobs. Michael C. Kennedy's Weblog - Tuesday, September 30, 2008 - TDD Invades Space Invaders
As a follow-up to our " Avoiding 5 Common Pitfalls in Unit Testing " article we did a webcast where we took a problem from the audience and solved it live and unrehearsed on stage. The thing to remember is that all of this was done for the sole purpose of creating a recipe for a scenario we could test. Create a new test project. We made it to step 4 during our presentation (download code below) and estimate another 15 minutes would have had the whole scenario done, tested, and well-factored. Tags: DevelopMentor Screencasts Talks Unit Testing Michael C. Kennedy's Weblog - Wednesday, October 28, 2009 - Test-Driven Cameras
wish people had this same reaction to the idea of writing code without first writing tests (TDD). Tests give you the chance: To see what you are going to write, BEFORE you write it. If you haven’t already, here’s a great place to start learning to Test-Driven Development ? If you are already writing tests, here’s a free library to make test even easier to write? Unit Testing TDDI am getting old. The other day I was hanging around with my friend, Ike Ellis. He told me a story about his kids. The first question they asked was “Where is the picture?” DevelopMentor Courses - Wednesday, September 7, 2011 %>
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