Function jsonPathGet

tests/contract/contract_test.go:535–575

── JSON path evaluator ─────────────────────────────────────────── jsonPathGet resolves dot-notation paths like "agents[0].email" or "agents.length".

(obj map[string]interface{}, path string)

// jsonPathGet resolves dot-notation paths like "agents[0].email" or "agents.length".
func jsonPathGet(obj map[string]interface{}, path string) (interface{}, bool) {
	parts := strings.Split(path, ".")
	var current interface{} = obj

	for _, part := range parts {
		if part == "length" {
			arr, ok := current.([]interface{})
			if !ok {
				return nil, false
			}
			return len(arr), true
		}

		if idx := strings.Index(part, "["); idx != -1 {
			name := part[:idx]
			idxStr := part[idx+1 : len(part)-1]
			arrIdx, _ := strconv.Atoi(idxStr)

			m, ok := current.(map[string]interface{})
			if !ok {
				return nil, false
			}
			arr, ok := m[name].([]interface{})
			if !ok || arrIdx >= len(arr) {
				return nil, false
			}
			current = arr[arrIdx]
		} else {
			m, ok := current.(map[string]interface{})
			if !ok {
				return nil, false
			}
			val, exists := m[part]
			if !exists {
				return nil, false
			}
			current = val
		}
	}
	return current, true
}

// valuesEqual compares a JSON-decoded value with a YAML-decoded expected value,
// handling cross-type numeric comparison (JSON float64 vs YAML int).