neoneo-go/pkg/util/fixed8_test.go
fyrchik 1d9045877c Add JSON unmarshallers for numeric types from util (#83)
Uint160, Uint256, Fixed8 now have UnmarshalJSON method.
2018-05-09 07:20:16 +02:00

57 lines
1.4 KiB
Go

package util
import (
"encoding/json"
"testing"
"github.com/stretchr/testify/assert"
)
func TestNewFixed8(t *testing.T) {
values := []int{9000, 100000000, 5, 10945}
for _, val := range values {
assert.Equal(t, Fixed8(val*decimals), NewFixed8(val))
assert.Equal(t, int64(val), NewFixed8(val).Value())
}
}
func TestFixed8DecodeString(t *testing.T) {
// Fixed8DecodeString works correctly with integers
ivalues := []string{"9000", "100000000", "5", "10945"}
for _, val := range ivalues {
n, err := Fixed8DecodeString(val)
assert.Nil(t, err)
assert.Equal(t, val, n.String())
}
// Fixed8DecodeString parses number with maximal precision
val := "123456789.12345678"
n, err := Fixed8DecodeString(val)
assert.Nil(t, err)
assert.Equal(t, Fixed8(12345678912345678), n)
// Fixed8DecodeString parses number with non-maximal precision
val = "901.2341"
n, err = Fixed8DecodeString(val)
assert.Nil(t, err)
assert.Equal(t, Fixed8(90123410000), n)
}
func TestFixed8UnmarshalJSON(t *testing.T) {
fl := float64(123.45)
str := "123.45"
expected, _ := Fixed8DecodeString(str)
// UnmarshalJSON should decode floats
var u1 Fixed8
s, _ := json.Marshal(fl)
assert.Nil(t, json.Unmarshal(s, &u1))
assert.Equal(t, expected, u1)
// UnmarshalJSON should decode strings
var u2 Fixed8
s, _ = json.Marshal(str)
assert.Nil(t, json.Unmarshal(s, &u2))
assert.Equal(t, expected, u2)
}