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std/mem.zig: test writing u64 integers;

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kristopher tate 2018-08-23 09:03:02 +09:00
parent 4b68ef45af
commit e95345b3dc
1 changed files with 41 additions and 1 deletions
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42
std/mem.zig
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@ -679,10 +679,38 @@ test "testWriteInt" {
comptime testWriteIntImpl();
}
fn testWriteIntImpl() void {
var bytes: [4]u8 = undefined;
var bytes: [8]u8 = undefined;
writeInt(bytes[0..], u64(0x12345678CAFEBABE), builtin.Endian.Big);
assert(eql(u8, bytes, []u8{
0x12,
0x34,
0x56,
0x78,
0xCA,
0xFE,
0xBA,
0xBE,
}));
writeInt(bytes[0..], u64(0xBEBAFECA78563412), builtin.Endian.Little);
assert(eql(u8, bytes, []u8{
0x12,
0x34,
0x56,
0x78,
0xCA,
0xFE,
0xBA,
0xBE,
}));
writeInt(bytes[0..], u32(0x12345678), builtin.Endian.Big);
assert(eql(u8, bytes, []u8{
0x00,
0x00,
0x00,
0x00,
0x12,
0x34,
0x56,
@ -695,10 +723,18 @@ fn testWriteIntImpl() void {
0x34,
0x56,
0x78,
0x00,
0x00,
0x00,
0x00,
}));
writeInt(bytes[0..], u16(0x1234), builtin.Endian.Big);
assert(eql(u8, bytes, []u8{
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x12,
@ -711,6 +747,10 @@ fn testWriteIntImpl() void {
0x12,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
}));
}