add validator for truncate size option

momentohq · Nov 30, 2023 · cdd69c6 · cdd69c6
1 parent caaa8dc
commit cdd69c6
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/Sources/momento/internal/utils/Validators.swift b/Sources/momento/internal/utils/Validators.swift
@@ -56,6 +56,12 @@ internal func validateTtl(ttl: TimeInterval?) throws {
     }
 }
 
+internal func validateTruncateSize(size: Int?) throws {
+    if (size != nil && size! < 0) {
+        throw InvalidArgumentError(message: "size to truncate to must be a positive number")
+    }
+}
+
 internal func validateListSliceStartEnd(startIndex: Int?, endIndex: Int?) throws {
     if startIndex == nil || endIndex == nil {
         return