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Testing logs with Serilog

This project contains a demo app for the How to test logging when using Microsoft.Extensions.Logging guide.

This app is an ASP.NET web api and a test project that shows how to use MELT and Serilog to test logging in integration tests.

How to run

  • Open the TestingLogsWithSerilog.sln which can be found at src/guides/serilog/TestingLogsWithSerilog.
  • Run the tests. Both tests should pass.

Notes

  • SerilogConfigurationExtensions.cs shows an example setup of the Serilog logger. This is used on the Program.cs as part of building the IHostBuilder.
  • The DemoTests1.cs test shows how to do test your logging in integration tests when using Serilog as your logging framework. The DemoTests2.cs test is the same as DemoTest1 but it uses a custom WebApplicationFactory, which is something you might require depending on your scenario.
  • The tests in DemoTest1 and DemoTest2 can NOT run in parallel. This is because the Serilog logger is setup on a static global property. That's why both test classes are marked with a Collection attribute. In xUnit that's how you control the parallelism of running tests.