mirror of https://github.com/poanetwork/gecko.git
utils: Add tests for Packer.PackBytes & UnpackBytes
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@ -245,6 +245,53 @@ func TestPackerUnpackFixedBytes(t *testing.T) {
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}
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}
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func TestPackerPackBytes(t *testing.T) {
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p := Packer{MaxSize: 7}
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p.PackBytes([]byte("Ava"))
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if p.Errored() {
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t.Fatal(p.Err)
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}
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if size := len(p.Bytes); size != 7 {
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t.Fatalf("Packer.PackBytes wrote %d byte(s) but expected %d byte(s)", size, 7)
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}
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expected := []byte("\x00\x00\x00\x03Ava")
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if !bytes.Equal(p.Bytes, expected) {
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t.Fatalf("Packer.PackBytes wrote:\n%v\nExpected:\n%v", p.Bytes, expected)
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}
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p.PackBytes([]byte("Ava"))
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if !p.Errored() {
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t.Fatal("Packer.PackBytes did not fail when attempt was beyond p.MaxSize")
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}
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}
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func TestPackerUnpackBytes(t *testing.T) {
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var (
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p = Packer{Bytes: []byte("\x00\x00\x00\x03Ava")}
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actual = p.UnpackBytes()
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expected = []byte("Ava")
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expectedLen = 7
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackBytes unexpectedly raised %s", p.Err)
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} else if !bytes.Equal(actual, expected) {
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t.Fatalf("Packer.UnpackBytes returned %d, but expected %d", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackBytes left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackBytes()
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if !p.Errored() {
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t.Fatalf("Packer.UnpackBytes should have set error, due to attempted out of bounds read")
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} else if actual != nil {
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t.Fatalf("Packer.UnpackBytes returned %v, expected sentinal value %v", actual, nil)
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}
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}
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func TestPackerString(t *testing.T) {
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p := Packer{MaxSize: 5}
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