package util import ( "encoding/hex" "testing" "github.com/CityOfZion/neo-go/pkg/io" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) func TestUint256UnmarshalJSON(t *testing.T) { str := "f037308fa0ab18155bccfc08485468c112409ea5064595699e98c545f245f32d" expected, err := Uint256DecodeStringLE(str) require.NoError(t, err) // UnmarshalJSON decodes hex-strings var u1, u2 Uint256 require.NoError(t, u1.UnmarshalJSON([]byte(`"`+str+`"`))) assert.True(t, expected.Equals(u1)) s, err := expected.MarshalJSON() require.NoError(t, err) // UnmarshalJSON decodes hex-strings prefixed by 0x require.NoError(t, u2.UnmarshalJSON(s)) assert.True(t, expected.Equals(u1)) // UnmarshalJSON does not accepts numbers assert.Error(t, u2.UnmarshalJSON([]byte("123"))) } func TestUint256DecodeString(t *testing.T) { hexStr := "f037308fa0ab18155bccfc08485468c112409ea5064595699e98c545f245f32d" val, err := Uint256DecodeStringLE(hexStr) require.NoError(t, err) assert.Equal(t, hexStr, val.StringLE()) bs, err := hex.DecodeString(hexStr) require.NoError(t, err) val1, err := Uint256DecodeBytesBE(bs) assert.NoError(t, err) assert.Equal(t, hexStr, val1.String()) assert.Equal(t, val, val1.Reverse()) _, err = Uint256DecodeStringLE(hexStr[1:]) assert.Error(t, err) hexStr = "zzz7308fa0ab18155bccfc08485468c112409ea5064595699e98c545f245f32d" _, err = Uint256DecodeStringLE(hexStr) assert.Error(t, err) } func TestUint256DecodeBytes(t *testing.T) { hexStr := "f037308fa0ab18155bccfc08485468c112409ea5064595699e98c545f245f32d" b, err := hex.DecodeString(hexStr) require.NoError(t, err) val, err := Uint256DecodeBytesLE(b) require.NoError(t, err) assert.Equal(t, hexStr, val.StringLE()) _, err = Uint256DecodeBytesBE(b[1:]) assert.Error(t, err) } func TestUInt256Equals(t *testing.T) { a := "f037308fa0ab18155bccfc08485468c112409ea5064595699e98c545f245f32d" b := "e287c5b29a1b66092be6803c59c765308ac20287e1b4977fd399da5fc8f66ab5" ua, err := Uint256DecodeStringLE(a) require.NoError(t, err) ub, err := Uint256DecodeStringLE(b) require.NoError(t, err) assert.False(t, ua.Equals(ub), "%s and %s cannot be equal", ua, ub) assert.True(t, ua.Equals(ua), "%s and %s must be equal", ua, ua) assert.Zero(t, ua.CompareTo(ua), "%s and %s must be equal", ua, ua) } func TestUint256_Serializable(t *testing.T) { a := Uint256{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, } w := io.NewBufBinWriter() a.EncodeBinary(w.BinWriter) require.NoError(t, w.Err) var b Uint256 r := io.NewBinReaderFromBuf(w.Bytes()) b.DecodeBinary(r) require.Equal(t, a, b) }