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7/19/2026
Bulk-validating JSON test cases against a CSV schema with JSONPath (jsonpath-plus)

Bulk-validating JSON test cases against a CSV schema with JSONPath (jsonpath-plus)

Short summary

A walkthrough of a JSON Expected Value Validator tool that lets you define JSONPath-based validation rules in a CSV and apply them across multiple JSON test cases simultaneously. The tool supports four comparison modes (exact, unordered, contains, length_only) and handles CSV escaping for JSONPath filter expressions with embedded quotes. Built on jsonpath-plus with path normalization and a shared CSV utility.

  • •Define validation rules as CSV rows with JSONPath, expected type, required flag, and comparison mode
  • •Four comparison modes: exact, unordered (default), contains, and length_only for flexible API testing
  • •CSV escaping for JSONPath filters with embedded quotes was the hardest part — shared utility prevents silent corruption

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