[MVC.Testing] Fix NullReferenceException #62231
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Fix `NullReferenceException` accessing `Services` in a web application using top-level programs. Fixes dotnet#62224.
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Pull Request Overview
This PR fixes a NullReferenceException in WebApplicationFactory.Services by updating the service resolution logic and adding tests for minimal and real server scenarios.
- Removed an unused using directive in RealServerWithDynamicPortIntegrationTests.cs.
- Added integration tests for minimal-backed and real server scenarios.
- Updated the Services getter in WebApplicationFactory.cs to handle potential null values.
Reviewed Changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| src/Mvc/test/Mvc.FunctionalTests/RealServerWithDynamicPortIntegrationTests.cs | Removed an unused using directive. |
| src/Mvc/test/Mvc.FunctionalTests/RealServerUsingMinimalBackedIntegrationTests.cs | Added minimal-backed integration tests including service resolution. |
| src/Mvc/test/Mvc.FunctionalTests/RealServerBackedIntegrationTests.cs | Removed redundant base address assignment and added a test for resolving services. |
| src/Mvc/test/Mvc.FunctionalTests/KestrelBasedWebApplicationFactoryForMinimal.cs | Introduced a new web application factory utilizing a dynamically assigned port. |
| src/Mvc/Mvc.Testing/src/WebApplicationFactory.cs | Updated the Services getter to fallback to _host.Services when _webHost is null. |
captainsafia
reviewed
Jun 4, 2025
captainsafia
approved these changes
Jun 4, 2025
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Fix NullReferenceException from WebApplicationFactory.Services
Fix
NullReferenceExceptionfromWebApplicationFactory.Services.Description
Fix
NullReferenceExceptionaccessingServicesin a web application using top-level programs and add tests.Fixes #62224