This repository takes a step-by-step approach for
exploring techinques to use in integration tests for
ASP.NET Core API projects using XUnit
and WebApplicationFactory (part of
Microsoft.AspNetCore.Mvc.Testing).
The 01-simple-api folder contains a solution that gets started
with a slightly-modified "weather forecast" minimal API and gets into
some testing - including a CustomApiFactory class that inherits
from WebApplicationFactory.
A blog post with explanations is available.
The 02-simple-api-with-sqlite and
03-simple-api-with-postgres folders add a controller
for "products" that has get many, get single, and create
methods that use a real database - SQLite and Postgres
respectively.
Both solutions show some always-refreshed data used in the "Development" environment: hard-coded in the SQLite flavor and then using Bogus in the Postgres version.
The important content is in the Test projects for each
solution - and both include a DatabaseFixture class
that establishes the database and some test data using
Bogus that is a little different than the "Development"
data mentioned above.
- The SQLite version uses an in-memory version of SQLite
- The Postgres version uses TestContainers with a Postgres to run a temporary Docker container for the postgres database that will only exist for the duration of the test and is then cleaned up.
The tests refer to the OriginalProducts that were
created during startup.