Treat ValidationContext as required in validation resolver APIs #61854
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Pull Request Overview
This pull request improves validation logic by ensuring that a ValidationContext is initialized when it is not pre-populated, thereby tolerating a null context during validation.
- Initializes ValidationContext in ValidateAsync methods for parameters, properties, and types
- Removes Debug.Assert statements that assumed a non-null context
- Adds comprehensive unit tests to verify the new behavior
Reviewed Changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| src/Http/Http.Abstractions/test/Validation/ValidatableTypeInfoTests.cs | Adds new tests to verify error handling and successful validation with uninitialized ValidationContext |
| src/Http/Http.Abstractions/test/Validation/ValidatableParameterInfoTests.cs | Introduces tests for required parameters where ValidationContext is initialized during validation |
| src/Http/Http.Abstractions/src/Validation/ValidatableTypeInfo.cs | Removes Debug.Assert and initializes ValidationContext with a fallback display name |
| src/Http/Http.Abstractions/src/Validation/ValidatablePropertyInfo.cs | Removes redundant Debug.Assert and adds contextual initialization of ValidationContext |
| src/Http/Http.Abstractions/src/Validation/ValidatableParameterInfo.cs | Removes Debug.Assert and ensures a non-null value for ValidationContext initialization |
BrennanConroy
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May 9, 2025
src/Http/Http.Abstractions/test/Validation/ValidatableParameterInfoTests.cs
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src/Http/Http.Abstractions/src/Validation/ValidatableTypeInfo.cs
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| // ValidationContext requires a non-null value although the invocation pattern that we use | ||
| // calls `GetValidationResult` and passes the value there. `GetValidationResult` tolerates | ||
| // null values so we only need to set a non-null value to the ValidationContext here. | ||
| context.ValidationContext ??= new ValidationContext(value ?? new object(), displayName: DisplayName, serviceProvider: null, items: null); |
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Can we avoid allocating a new value each time in the case we don't need one?
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Oh yeah, like only newing up in the getter?
src/Http/Http.Abstractions/src/Validation/ValidatableParameterInfo.cs
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BrennanConroy
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This pull request improves the validation logic in the
Microsoft.AspNetCore.Http.Validationnamespace by ensuring that aValidationContextis a required property.Fixes #61738
This pull request introduces several updates to the validation framework in
Microsoft.AspNetCore.Http, focusing on improving type safety, simplifying validation logic, and enhancing test coverage. The key changes include making theValidationContextproperty inValidateContextrequired, removing redundantDebug.Assertstatements, and updating tests to align with the newValidateContextinitialization pattern.Validation Framework Updates:
ValidationContextProperty Update:ValidationContextproperty inValidateContextis now marked asrequired, ensuring it is always initialized. Additional documentation and examples have been added to clarify its usage. ([[1]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-b16fffb7593a94827187c81633f618740d0315cafe67c1ad148e74ee73d48369L19-R36),[[2]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-c25699c95b8367fb6f1c1c20b4566b5f15479fae809d04f1aee4faef7e36c883L27-R27))ValidationContextinitialization in tests has been updated to use object initializers, improving readability and consistency. ([[1]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-f089fa164925b2123ac8f2eb82a21c16006c355262f84596e6cbf32a0ab25a43L44-R53),[[2]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-f089fa164925b2123ac8f2eb82a21c16006c355262f84596e6cbf32a0ab25a43L99-R111),[[3]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-f089fa164925b2123ac8f2eb82a21c16006c355262f84596e6cbf32a0ab25a43R143-L159), and others)Simplification of Validation Logic:
Debug.Assertstatements that checked for the presence ofValidationContext, as this is now enforced by therequiredmodifier. ([[1]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-688f42bea373bd51787ca8ee43ca3a6456beba2ccf638189bc4d64a549627401L63-L64),[[2]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-c3a66d105b9c639c52f0ac3f111af08016219a354b470f31322b068cfadab37cL64-L65),[[3]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-4747a7dd84b487cb53a7e83e9402dac63077283371409e02b324106251c36d5bL48))Createmethod inValidationEndpointFilterFactoryto initializeValidateContextlazily, reducing unnecessary object creation. ([[1]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-5d39135cbdf8958ffced3a56b7d0b970c302cb2c24d32b8672b1c9c9c004c187L46-R46),[[2]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-5d39135cbdf8958ffced3a56b7d0b970c302cb2c24d32b8672b1c9c9c004c187L60-R81))Test Enhancements:
ValidatableTypeInfoTeststo reflect the newValidateContextinitialization pattern, ensuring consistency and improved maintainability. ([[1]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-f089fa164925b2123ac8f2eb82a21c16006c355262f84596e6cbf32a0ab25a43L308-L313),[[2]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-f089fa164925b2123ac8f2eb82a21c16006c355262f84596e6cbf32a0ab25a43R346-L362),[[3]](https://github.com/dotnet/aspnetcore/pull/61854/files#diff-f089fa164925b2123ac8f2eb82a21c16006c355262f84596e6cbf32a0ab25a43R381-L398), and others)