[coreclr] fix string runtimeconfig.json values#10669
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jonathanpeppers merged 3 commits intomainfrom Jan 8, 2026
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`prop.Value.GetRawText ()` returns a string value `foo` as `"foo"`. Let's instead switch on `JsonValueKind` and handle each type appropriately. The existing `AppContextTests` should verify this when we enable the `RuntimeConfig` category.
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Pull request overview
This PR fixes a bug in RuntimePropertiesParser where JSON string values from runtimeconfig.json were being parsed with surrounding quotes (e.g., "foo" instead of foo) due to using GetRawText() for all value types. The fix switches on JsonValueKind to handle each JSON type appropriately, and enables the RuntimeConfig test category to verify the fix.
Key Changes:
- Implemented
GetJsonValueAsString()helper method that properly handles String, Boolean, Number, Object, Array, Null, and Undefined JSON types - Enabled
RuntimeConfigtest category for CoreCLR builds to activateAppContextTests - Fixed null value handling by skipping properties with null/undefined values
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
src/Xamarin.Android.Build.Tasks/Utilities/RuntimePropertiesParser.cs |
Added GetJsonValueAsString() method to properly convert JSON values to strings based on their JsonValueKind, fixing the string value parsing bug |
tests/Mono.Android-Tests/Mono.Android-Tests/Mono.Android.NET-Tests.csproj |
Removed RuntimeConfig from the excluded test categories for CoreCLR, enabling AppContextTests to verify the fix |
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Two failures are known flaky, being addressed in other PRs: 
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jonathanpeppers
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Jan 21, 2026
`prop.Value.GetRawText ()` returns a string value `foo` as `"foo"`. Let's instead switch on `JsonValueKind` and handle each type appropriately. The existing `AppContextTests` should verify this when we enable the `RuntimeConfig` category.
jonathanpeppers
added a commit
that referenced
this pull request
Jan 21, 2026
`prop.Value.GetRawText ()` returns a string value `foo` as `"foo"`. Let's instead switch on `JsonValueKind` and handle each type appropriately. The existing `AppContextTests` should verify this when we enable the `RuntimeConfig` category.
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prop.Value.GetRawText ()returns a string valuefooas"foo".Let's instead switch on
JsonValueKindand handle each type appropriately.The existing
AppContextTestsshould verify this when we enable theRuntimeConfigcategory.