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Should integration test use real database?
You MUST write a real integration test anyway First and foremost, an in-memory provider is a pale imitation for the real thing. Even with writing in-memory tests, we still absolutely wrote integration tests against a real database.
What is the difference between integration and system testing?
System testing is a testing level in which tests are performed to know if a complete build aligns with functional and nonfunctional requirements made for it. In contrast, Integration testing is a testing stage where two or more software units are joined and tested simultaneously.
How are integration tests done in.net core?
NET Core supports integration tests using a unit test framework with a test web host and an in-memory test server. This topic assumes a basic understanding of unit tests. If unfamiliar with test concepts, see the Unit Testing in .NET Core and .NET Standard topic and its linked content.
Do you need a database for integration tests?
Afterwards it can be cleared and used for another test run. Therefore, you do need dedicated test databases. Ideally this DB runs locally on your development machine, but managing them centrally would also work (might even be necessary if you have to comply with proprietary licenses).
Do you use unit tests in integration tests?
This is like testing that an electric socket has power, and testing that a plug has the correct shape, but not testing whether the device runs when you plug it into the socket. Unit tests are very useful to carefully test some component in isolation, but they are usually not suitable as a primary testing strategy.
How to setup connection string in integration tests?
Just setup a connection string in the app.config of your unit test project that points to the new DB instance. You can then use the initialisation and cleanup methods in your test class to create and delete the DB. The connection string is just the usual, e.g.