432         let num = deserialize_u32(&[0; 0], "");  in deserializing_u32s()  localVariable
433         expect!(num.is_err(), "We need an array of exactly 4 bytes for a u32");  in deserializing_u32s()
434         let num = deserialize_u32(&[0; 3], "");  in deserializing_u32s()  localVariable
435         expect!(num.is_err(), "We need an array of exactly 4 bytes for a u32");  in deserializing_u32s()
436         let num = deserialize_u32(&[0; 5], "");  in deserializing_u32s()  localVariable
437         expect!(num.is_err(), "We need an array of exactly 4 bytes for a u32");  in deserializing_u32s()
438         let num = deserialize_u32(&[0; 4], "").unwrap();  in deserializing_u32s()  localVariable
439         expect_eq!(num, 0, "recovered number should be 0");  in deserializing_u32s()
440         let num = deserialize_u32(&[0xff; 4], "").unwrap();  in deserializing_u32s()  localVariable
441         expect_eq!(num, 0xffffffff, "recovered number should be 0xffffffff");  in deserializing_u32s()
442         let num = deserialize_u32(&[1, 0, 0, 0], "").unwrap();  in deserializing_u32s()  localVariable
443         expect_eq!(num, 1, "recovered number should be 1");  in deserializing_u32s()
444         let num = deserialize_u32(&[0x78, 0x56, 0x34, 0x12], "").unwrap();  in deserializing_u32s()  localVariable
445         expect_eq!(num, 0x12345678, "recovered number should be 0x12345678");  in deserializing_u32s()