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tests: rlp encoding test #91

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merged 2 commits into from
Aug 24, 2021
Merged

tests: rlp encoding test #91

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f4f427a
tests: add rlp encoding test
holiman Aug 24, 2021
d4ac8b3
tests: fix deepsource 'issues'
holiman Aug 24, 2021
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37 changes: 25 additions & 12 deletions conversion_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -109,7 +109,7 @@ func TestToBig(t *testing.T) {
}
}

func benchmarkSetFromBig(bench *testing.B, b *big.Int) Int {
func benchSetFromBig(bench *testing.B, b *big.Int) Int {
var f Int
for i := 0; i < bench.N; i++ {
f.SetFromBig(b)
Expand All @@ -119,22 +119,22 @@ func benchmarkSetFromBig(bench *testing.B, b *big.Int) Int {

func BenchmarkSetFromBig(bench *testing.B) {
param1 := big.NewInt(0xff)
bench.Run("1word", func(bench *testing.B) { benchmarkSetFromBig(bench, param1) })
bench.Run("1word", func(bench *testing.B) { benchSetFromBig(bench, param1) })

param2 := new(big.Int).Lsh(param1, 64)
bench.Run("2words", func(bench *testing.B) { benchmarkSetFromBig(bench, param2) })
bench.Run("2words", func(bench *testing.B) { benchSetFromBig(bench, param2) })

param3 := new(big.Int).Lsh(param2, 64)
bench.Run("3words", func(bench *testing.B) { benchmarkSetFromBig(bench, param3) })
bench.Run("3words", func(bench *testing.B) { benchSetFromBig(bench, param3) })

param4 := new(big.Int).Lsh(param3, 64)
bench.Run("4words", func(bench *testing.B) { benchmarkSetFromBig(bench, param4) })
bench.Run("4words", func(bench *testing.B) { benchSetFromBig(bench, param4) })

param5 := new(big.Int).Lsh(param4, 64)
bench.Run("overflow", func(bench *testing.B) { benchmarkSetFromBig(bench, param5) })
bench.Run("overflow", func(bench *testing.B) { benchSetFromBig(bench, param5) })
}

func benchmarkToBig(bench *testing.B, f *Int) *big.Int {
func benchToBig(bench *testing.B, f *Int) *big.Int {
var b *big.Int
for i := 0; i < bench.N; i++ {
b = f.ToBig()
Expand All @@ -144,16 +144,16 @@ func benchmarkToBig(bench *testing.B, f *Int) *big.Int {

func BenchmarkToBig(bench *testing.B) {
param1 := new(Int).SetUint64(0xff)
bench.Run("1word", func(bench *testing.B) { benchmarkToBig(bench, param1) })
bench.Run("1word", func(bench *testing.B) { benchToBig(bench, param1) })

param2 := new(Int).Lsh(param1, 64)
bench.Run("2words", func(bench *testing.B) { benchmarkToBig(bench, param2) })
bench.Run("2words", func(bench *testing.B) { benchToBig(bench, param2) })

param3 := new(Int).Lsh(param2, 64)
bench.Run("3words", func(bench *testing.B) { benchmarkToBig(bench, param3) })
bench.Run("3words", func(bench *testing.B) { benchToBig(bench, param3) })

param4 := new(Int).Lsh(param3, 64)
bench.Run("4words", func(bench *testing.B) { benchmarkToBig(bench, param4) })
bench.Run("4words", func(bench *testing.B) { benchToBig(bench, param4) })
}

func TestFormat(t *testing.T) {
Expand Down Expand Up @@ -555,11 +555,24 @@ func TestRlpEncode(t *testing.T) {
t.Fatalf("testcase %d got:\n%x\nexp:%x\n", i, got, exp)
}
}
// And test nil
{
var z *Int
var b bytes.Buffer
w := bufio.NewWriter(&b)
if err := z.EncodeRLP(w); err != nil {
t.Fatal(err)
}
w.Flush()
if got, exp := b.Bytes(), hex2Bytes("80"); !bytes.Equal(got, exp) {
t.Fatalf("nil-test got:\n%x\nexp:%x\n", got, exp)
}
}
}

type nilWriter struct{}

func (n2 *nilWriter) Write(p []byte) (n int, err error) {
func (*nilWriter) Write(p []byte) (n int, err error) {
return len(p), nil
}

Expand Down