128 lines
2.2 KiB
Go
128 lines
2.2 KiB
Go
package packer
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import (
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"reflect"
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"testing"
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)
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// pack
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func TestPackSmallPositiveInts(t *testing.T) {
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got := PackInt(1)
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want := []byte{0x01}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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}
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func TestPackMultiBytePositiveInts(t *testing.T) {
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got := PackInt(63)
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want := []byte{0x3F}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = PackInt(64)
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want = []byte{0x80, 0x01}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = PackInt(65)
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want = []byte{0x81, 0x01}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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}
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func TestPackSmallNegativeInts(t *testing.T) {
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got := PackInt(-1)
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want := []byte{0x40}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = PackInt(-2)
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want = []byte{0x41}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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}
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func TestPackMultiByteNegativeInts(t *testing.T) {
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got := PackInt(-63)
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want := []byte{0x7E}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = PackInt(-64)
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want = []byte{0x7F}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = PackInt(-65)
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want = []byte{0xC0, 0x01}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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}
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// unpack
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func TestUnpackSmallPositiveInts(t *testing.T) {
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got := UnpackInt([]byte{0x01})
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want := 1
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = UnpackInt([]byte{0x02})
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want = 2
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = UnpackInt([]byte{0x03})
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want = 3
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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}
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func TestUnpackMultiBytePositiveInts(t *testing.T) {
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got := UnpackInt([]byte{0x3f})
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want := 63
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = UnpackInt([]byte{0x80, 0x01})
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want = 64
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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got = UnpackInt([]byte{0x81, 0x01})
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want = 65
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %v, wanted %v", got, want)
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}
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}
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