(t *testing.T)
| 10 | ) |
| 11 | |
| 12 | func TestIntEndianness(t *testing.T) { |
| 13 | modulo := big.NewInt(65535) |
| 14 | var v int64 = 65500 |
| 15 | // Let's assume it is bigendian and test that |
| 16 | i := new(Int).Init64(v, modulo) |
| 17 | assert.Equal(t, i.BO, BigEndian) |
| 18 | |
| 19 | buff1, err := i.MarshalBinary() |
| 20 | assert.Nil(t, err) |
| 21 | i.BO = BigEndian |
| 22 | buff2, err := i.MarshalBinary() |
| 23 | assert.Nil(t, err) |
| 24 | assert.Equal(t, buff1, buff2) |
| 25 | |
| 26 | // Let's change endianness and check the result |
| 27 | i.BO = LittleEndian |
| 28 | buff3, err := i.MarshalBinary() |
| 29 | assert.Nil(t, err) |
| 30 | assert.NotEqual(t, buff2, buff3) |
| 31 | |
| 32 | // let's try LittleEndian function |
| 33 | buff4 := i.LittleEndian(0, 32) |
| 34 | assert.Equal(t, buff3, buff4) |
| 35 | // set endianess but using littleendian should not change anything |
| 36 | i.BO = BigEndian |
| 37 | assert.Equal(t, buff4, i.LittleEndian(0, 32)) |
| 38 | |
| 39 | // Try to reconstruct the int from the buffer |
| 40 | i = new(Int).Init64(v, modulo) |
| 41 | i2 := NewInt64(0, modulo) |
| 42 | buff, _ := i.MarshalBinary() |
| 43 | assert.Nil(t, i2.UnmarshalBinary(buff)) |
| 44 | assert.True(t, i.Equal(i2)) |
| 45 | |
| 46 | i.BO = LittleEndian |
| 47 | buff, _ = i.MarshalBinary() |
| 48 | i2.BO = LittleEndian |
| 49 | assert.Nil(t, i2.UnmarshalBinary(buff)) |
| 50 | assert.True(t, i.Equal(i2)) |
| 51 | |
| 52 | i2.BO = BigEndian |
| 53 | assert.Nil(t, i2.UnmarshalBinary(buff)) |
| 54 | assert.False(t, i.Equal(i2)) |
| 55 | } |
| 56 | func TestIntEndianBytes(t *testing.T) { |
| 57 | modulo, err := hex.DecodeString("1000") |
| 58 | moduloI := new(big.Int).SetBytes(modulo) |
nothing calls this directly
no test coverage detected