[temp] Attempt at Never tests

Author: dimitribouniol

Tests/WebPushTests/NeverTests.swift

@@ -17,6 +17,28 @@ import Testing
 @Suite("Never Tests")
 struct NeverTests {
     @Test func retroactiveCodableWorks() async throws {
+//        struct CustomEncoder: Encoder {
+//            var codingPath: [any CodingKey] = []
+//            var userInfo: [CodingUserInfoKey : Any] = [:]
+//            
+//            func container<Key>(keyedBy type: Key.Type) -> KeyedEncodingContainer<Key> where Key : CodingKey {
+//                fatalError()
+//            }
+//            
+//            func unkeyedContainer() -> any UnkeyedEncodingContainer {
+//                fatalError()
+//            }
+//            
+//            func singleValueContainer() -> any SingleValueEncodingContainer {
+//                fatalError()
+//            }
+//        }
+//        
+//        struct DummyNever: Encodable {}
+//        
+//        let encodeFunction = unsafeBitCast(Never.encode, to: type(of: DummyNever.encode))
+//        try encodeFunction(DummyNever())(CustomEncoder())
+        
         #expect(throws: DecodingError.self, performing: {
             try JSONDecoder().decode(Never.self, from: Data("null".utf8))
         })