Testing D database calls code for regression

[aberba]

On Friday, 16 March 2018 at 21:15:33 UTC, H. S. Teoh wrote:
> On Fri, Mar 16, 2018 at 08:17:49PM +0000, aberba via 
> Digitalmars-d-learn wrote:
>> [...]
>
> The usual way I do this is to decouple the code from the real 
> database backend by templatizing the database driver.  Then in 
> my unittest I can instantiate the template with a mock database 
> driver that only implements the bare minimum to run the test.
>
> [...]

Mocking a fake database can also be huge pain. Especially when 
something like transactions and prepared statements are involved.

Imagine testing your mock for introduced by future extension.