Moved ethutil => common

1 files changed, 156 insertions, 0 deletions

diff --git a/common/rlp_test.go b/common/rlp_test.go
new file mode 100644
index 000000000..16a3553d7
--- /dev/null
+++ b/common/rlp_test.go
@@ -0,0 +1,156 @@
+package common
+
+import (
+	"bytes"
+	"math/big"
+	"reflect"
+	"testing"
+)
+
+func TestNonInterfaceSlice(t *testing.T) {
+	vala := []string{"value1", "value2", "value3"}
+	valb := []interface{}{"value1", "value2", "value3"}
+	resa := Encode(vala)
+	resb := Encode(valb)
+	if !bytes.Equal(resa, resb) {
+		t.Errorf("expected []string & []interface{} to be equal")
+	}
+}
+
+func TestRlpValueEncoding(t *testing.T) {
+	val := EmptyValue()
+	val.AppendList().Append(1).Append(2).Append(3)
+	val.Append("4").AppendList().Append(5)
+
+	res := val.Encode()
+	exp := Encode([]interface{}{[]interface{}{1, 2, 3}, "4", []interface{}{5}})
+	if bytes.Compare(res, exp) != 0 {
+		t.Errorf("expected %q, got %q", res, exp)
+	}
+}
+
+func TestValueSlice(t *testing.T) {
+	val := []interface{}{
+		"value1",
+		"valeu2",
+		"value3",
+	}
+
+	value := NewValue(val)
+	splitVal := value.SliceFrom(1)
+
+	if splitVal.Len() != 2 {
+		t.Error("SliceFrom: Expected len", 2, "got", splitVal.Len())
+	}
+
+	splitVal = value.SliceTo(2)
+	if splitVal.Len() != 2 {
+		t.Error("SliceTo: Expected len", 2, "got", splitVal.Len())
+	}
+
+	splitVal = value.SliceFromTo(1, 3)
+	if splitVal.Len() != 2 {
+		t.Error("SliceFromTo: Expected len", 2, "got", splitVal.Len())
+	}
+}
+
+func TestLargeData(t *testing.T) {
+	data := make([]byte, 100000)
+	enc := Encode(data)
+	value := NewValue(enc)
+	value.Decode()
+
+	if value.Len() != len(data) {
+		t.Error("Expected data to be", len(data), "got", value.Len())
+	}
+}
+
+func TestValue(t *testing.T) {
+	value := NewValueFromBytes([]byte("\xcd\x83dog\x83god\x83cat\x01"))
+	if value.Get(0).Str() != "dog" {
+		t.Errorf("expected '%v', got '%v'", value.Get(0).Str(), "dog")
+	}
+
+	if value.Get(3).Uint() != 1 {
+		t.Errorf("expected '%v', got '%v'", value.Get(3).Uint(), 1)
+	}
+}
+
+func TestEncode(t *testing.T) {
+	strRes := "\x83dog"
+	bytes := Encode("dog")
+
+	str := string(bytes)
+	if str != strRes {
+		t.Errorf("Expected %q, got %q", strRes, str)
+	}
+
+	sliceRes := "\xcc\x83dog\x83god\x83cat"
+	strs := []interface{}{"dog", "god", "cat"}
+	bytes = Encode(strs)
+	slice := string(bytes)
+	if slice != sliceRes {
+		t.Error("Expected %q, got %q", sliceRes, slice)
+	}
+
+	intRes := "\x82\x04\x00"
+	bytes = Encode(1024)
+	if string(bytes) != intRes {
+		t.Errorf("Expected %q, got %q", intRes, bytes)
+	}
+}
+
+func TestDecode(t *testing.T) {
+	single := []byte("\x01")
+	b, _ := Decode(single, 0)
+
+	if b.(uint8) != 1 {
+		t.Errorf("Expected 1, got %q", b)
+	}
+
+	str := []byte("\x83dog")
+	b, _ = Decode(str, 0)
+	if bytes.Compare(b.([]byte), []byte("dog")) != 0 {
+		t.Errorf("Expected dog, got %q", b)
+	}
+
+	slice := []byte("\xcc\x83dog\x83god\x83cat")
+	res := []interface{}{"dog", "god", "cat"}
+	b, _ = Decode(slice, 0)
+	if reflect.DeepEqual(b, res) {
+		t.Errorf("Expected %q, got %q", res, b)
+	}
+}
+
+func TestEncodeDecodeBigInt(t *testing.T) {
+	bigInt := big.NewInt(1391787038)
+	encoded := Encode(bigInt)
+
+	value := NewValueFromBytes(encoded)
+	if value.BigInt().Cmp(bigInt) != 0 {
+		t.Errorf("Expected %v, got %v", bigInt, value.BigInt())
+	}
+}
+
+func TestEncodeDecodeBytes(t *testing.T) {
+	b := NewValue([]interface{}{[]byte{1, 2, 3, 4, 5}, byte(6)})
+	val := NewValueFromBytes(b.Encode())
+	if !b.Cmp(val) {
+		t.Errorf("Expected %v, got %v", val, b)
+	}
+}
+
+func TestEncodeZero(t *testing.T) {
+	b := NewValue(0).Encode()
+	exp := []byte{0xc0}
+	if bytes.Compare(b, exp) == 0 {
+		t.Error("Expected", exp, "got", b)
+	}
+}
+
+func BenchmarkEncodeDecode(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		bytes := Encode([]interface{}{"dog", "god", "cat"})
+		Decode(bytes, 0)
+	}
+}