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package metro
import (
"encoding/binary"
"testing"
)
var key63 = []byte("012345678901234567890123456789012345678901234567890123456789012")
func Test64(t *testing.T) {
tests := []struct {
seed uint64
want []byte
}{
{0, []byte{0x6B, 0x75, 0x3D, 0xAE, 0x06, 0x70, 0x4B, 0xAD}},
{1, []byte{0x3B, 0x0D, 0x48, 0x1C, 0xF4, 0xB9, 0xB8, 0xDF}},
}
for _, tt := range tests {
want := binary.LittleEndian.Uint64(tt.want)
if got := Hash64(key63, tt.seed); got != want {
t.Errorf("Hash64(%q, %d)=%x, want %x\n", key63, tt.seed, got, want)
}
}
}
func Test128(t *testing.T) {
tests := []struct {
seed uint64
want []byte
}{
{0, []byte{0xC7, 0x7C, 0xE2, 0xBF, 0xA4, 0xED, 0x9F, 0x9B, 0x05, 0x48, 0xB2, 0xAC, 0x50, 0x74, 0xA2, 0x97}},
{1, []byte{0x45, 0xA3, 0xCD, 0xB8, 0x38, 0x19, 0x9D, 0x7F, 0xBD, 0xD6, 0x8D, 0x86, 0x7A, 0x14, 0xEC, 0xEF}},
}
for _, tt := range tests {
wanta := binary.LittleEndian.Uint64(tt.want)
wantb := binary.LittleEndian.Uint64(tt.want[8:])
if gota, gotb := Hash128(key63, tt.seed); gota != wanta || gotb != wantb {
t.Errorf("Hash128d(%q, %d)=(%x, %x), want (%x, %x)\n", key63, tt.seed, gota, gotb, wanta, wantb)
}
}
}
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