System.Text.Json Assertions for JsonNode, JsonElement, etc.#4179

Merged

thomhurst merged 10 commits intomainfrom

feature/json-assertions

Dec 28, 2025

Commits on Dec 28, 2025

feat(assertions): add JsonDiffHelper for path-to-difference error messages
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feat(assertions): add JsonElement type checking assertions
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feat(assertions): add JsonElement property assertions
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feat(assertions): add JsonElement deep equality assertions for .NET 9+

thomhurst
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claude
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feat(assertions): add JsonNode assertions with equality for .NET 8+
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fix(assertions): add path-based error messages for JsonNode equality

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feat(assertions): add JsonArray count and empty assertions

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feat(assertions): add string JSON validation assertions

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chore: update public API snapshots for JSON assertions

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claude
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feat(assertions): remove JSON assertions design and implementation plan documents
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