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package sys_test
import (
"runtime/internal/sys"
"testing"
)
func TestCtz64(t *testing.T) {
for i := uint(0); i <= 64; i++ {
x := uint64(5) << i
if got := sys.Ctz64(x); got != uint64(i) {
t.Errorf("Ctz64(%d)=%d, want %d", x, got, i)
}
}
}
func TestCtz32(t *testing.T) {
for i := uint(0); i <= 32; i++ {
x := uint32(5) << i
if got := sys.Ctz32(x); got != uint32(i) {
t.Errorf("Ctz32(%d)=%d, want %d", x, got, i)
}
}
}
func TestCtz16(t *testing.T) {
for i := uint(0); i <= 16; i++ {
x := uint16(5) << i
if got := sys.Ctz16(x); got != uint16(i) {
t.Errorf("Ctz16(%d)=%d, want %d", x, got, i)
}
}
}
func TestCtz8(t *testing.T) {
for i := uint(0); i <= 8; i++ {
x := uint8(5) << i
if got := sys.Ctz8(x); got != uint8(i) {
t.Errorf("Ctz8(%d)=%d, want %d", x, got, i)
}
}
}
func TestBswap64(t *testing.T) {
x := uint64(0x1122334455667788)
y := sys.Bswap64(x)
if y != 0x8877665544332211 {
t.Errorf("Bswap(%x)=%x, want 0x8877665544332211", x, y)
}
}
func TestBswap32(t *testing.T) {
x := uint32(0x11223344)
y := sys.Bswap32(x)
if y != 0x44332211 {
t.Errorf("Bswap(%x)=%x, want 0x44332211", x, y)
}
}
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