| 1 | // see: https://discordapp.com/channels/592103645835821068/592114487759470596/762270244566728704 |
| 2 | enum WireType { |
| 3 | varint = 0 |
| 4 | _64bit = 1 |
| 5 | length_prefixed = 2 |
| 6 | _32bit = 5 |
| 7 | } |
| 8 | |
| 9 | fn pack_wire_type(w WireType) u8 { |
| 10 | return u8(w) |
| 11 | } |
| 12 | |
| 13 | fn test_casting_an_enum_to_u8() { |
| 14 | x := WireType.length_prefixed |
| 15 | y := pack_wire_type(x) |
| 16 | assert 'x: ${x}' == 'x: length_prefixed' |
| 17 | assert 'y: ${y.hex()}' == 'y: 02' |
| 18 | } |
| 19 | |
| 20 | // |
| 21 | |
| 22 | fn test_casting_a_float_to_u8() { |
| 23 | x := 1.23 |
| 24 | b := u8(x) |
| 25 | assert 'x: ${x} | b: ${b.hex()}' == 'x: 1.23 | b: 01' |
| 26 | } |
| 27 | |
| 28 | fn test_casting_an_int_to_u8() { |
| 29 | x := 12 |
| 30 | b := u8(x) |
| 31 | assert 'x: ${x} | b: ${b.hex()}' == 'x: 12 | b: 0c' |
| 32 | } |
| 33 | |
| 34 | fn test_casting_a_bool_to_u8() { |
| 35 | x := true |
| 36 | b1 := u8(x) |
| 37 | assert 'x: ${x} | b: ${b1.hex()}' == 'x: true | b: 01' |
| 38 | y := false |
| 39 | b2 := u8(y) |
| 40 | assert 'y: ${y} | b: ${b2.hex()}' == 'y: false | b: 00' |
| 41 | } |
| 42 | |