As discussed in Part 1, by segregating our focus on developing code that behaves as expected from the focus on developing code that will be well structured, we have achieved the ability to eliminate wasteful and error prone manual chores.
2024-03-11
Automated testing is a way to ensure you can repeatedly examine your code as you make changes by running a series of tests. Since these are automated, you have the ability to execute all tests with one programmatic call rather than hoping a developer runs all tests. This also allows the effort of writing tests […]
2023-10-15 (first published: 2023-02-22)
1,087 reads
Test-Driven Development (TDD) involves the repetition of a very short development cycle that begins with an initially-failing test that defines the required functionality, and ends with producing the minimum amount of code to pass that test, and finally refactoring the new code. Michael Sorens continues his introduction to TDD by implementing the first tests and introducing the topics of Test doubles; Test Runners, Constraints and Assertions.
2014-09-19
7,785 reads
Test-Driven Development (TDD) relies on the repetition of a very short development cycle starting from an initially failing automated test that defines the functionality that is required, and then producing the minimum amount of code to pass that test, and finally refactoring the new code.
2014-08-29
7,571 reads
Test-Driven Development (TDD) has a misleading name, because the objective is to design and specify that the system you are developing behaves in the ways that the customer expects, and to prove that it does so for the lifetime of the system. Michael Sorens starts an introduction to TDD that is more of a journey in six parts.
2014-07-31
9,842 reads
Test-driven development is often taught using simple examples, such as calculating the scores for a game of ten-pin bowling. Using the same practice effectively on a real code base isn’t as easy. This article covers some of the questions that arise when dealing with larger code bases and changing requirements.
2014-04-29
5,710 reads
By Steve Jones
“Don’t aim to have others like you; aim to have them respect you.” –...
If you work with data pipelines, SQL, notebooks, or machine learning models, a Mac...
By ChrisJenkins
Have you been thinking about migrating your reporting to Microsoft Fabric or Snowflake but...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
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In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 3;See possible answers