mirror of
https://github.com/c9s/bbgo.git
synced 2024-11-25 08:15:15 +00:00
124 lines
5.4 KiB
Go
124 lines
5.4 KiB
Go
package fixedpoint
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func Test_FormatString(t *testing.T) {
|
|
cases := []struct {
|
|
input string
|
|
prec int
|
|
expected string
|
|
}{
|
|
{input: "0.57", prec: 5, expected: "0.57000"},
|
|
{input: "-0.57", prec: 5, expected: "-0.57000"},
|
|
{input: "0.57123456", prec: 8, expected: "0.57123456"},
|
|
{input: "-0.57123456", prec: 8, expected: "-0.57123456"},
|
|
{input: "0.57123456", prec: 5, expected: "0.57123"},
|
|
{input: "-0.57123456", prec: 5, expected: "-0.57123"},
|
|
{input: "0.57123456", prec: 0, expected: "0"},
|
|
{input: "-0.57123456", prec: 0, expected: "0"},
|
|
{input: "0.57123456", prec: -1, expected: "0"},
|
|
{input: "-0.57123456", prec: -1, expected: "0"},
|
|
{input: "0.57123456", prec: -5, expected: "0"},
|
|
{input: "-0.57123456", prec: -5, expected: "0"},
|
|
{input: "0.57123456", prec: -9, expected: "0"},
|
|
{input: "-0.57123456", prec: -9, expected: "0"},
|
|
|
|
{input: "1.23456789", prec: 9, expected: "1.234567890"},
|
|
{input: "-1.23456789", prec: 9, expected: "-1.234567890"},
|
|
{input: "1.02345678", prec: 9, expected: "1.023456780"},
|
|
{input: "-1.02345678", prec: 9, expected: "-1.023456780"},
|
|
{input: "1.02345678", prec: 2, expected: "1.02"},
|
|
{input: "-1.02345678", prec: 2, expected: "-1.02"},
|
|
{input: "1.02345678", prec: 0, expected: "1"},
|
|
{input: "-1.02345678", prec: 0, expected: "-1"},
|
|
{input: "1.02345678", prec: -1, expected: "0"},
|
|
{input: "-1.02345678", prec: -1, expected: "0"},
|
|
{input: "1.02345678", prec: -10, expected: "0"},
|
|
{input: "-1.02345678", prec: -10, expected: "0"},
|
|
|
|
{input: "0.0001234", prec: 9, expected: "0.000123400"},
|
|
{input: "-0.0001234", prec: 9, expected: "-0.000123400"},
|
|
{input: "0.0001234", prec: 7, expected: "0.0001234"},
|
|
{input: "-0.0001234", prec: 7, expected: "-0.0001234"},
|
|
{input: "0.0001234", prec: 5, expected: "0.00012"},
|
|
{input: "-0.0001234", prec: 5, expected: "-0.00012"},
|
|
{input: "0.0001234", prec: 3, expected: "0.000"},
|
|
{input: "-0.0001234", prec: 3, expected: "0.000"},
|
|
{input: "0.0001234", prec: 2, expected: "0.00"},
|
|
{input: "-0.0001234", prec: 2, expected: "0.00"},
|
|
{input: "0.0001234", prec: 0, expected: "0"},
|
|
{input: "-0.0001234", prec: 0, expected: "0"},
|
|
{input: "0.00001234", prec: -1, expected: "0"},
|
|
{input: "-0.00001234", prec: -1, expected: "0"},
|
|
{input: "0.00001234", prec: -5, expected: "0"},
|
|
{input: "-0.00001234", prec: -5, expected: "0"},
|
|
{input: "0.00001234", prec: -9, expected: "0"},
|
|
{input: "-0.00001234", prec: -9, expected: "0"},
|
|
|
|
{input: "12.3456789", prec: 10, expected: "12.3456789000"},
|
|
{input: "-12.3456789", prec: 10, expected: "-12.3456789000"},
|
|
{input: "12.3456789", prec: 9, expected: "12.345678900"},
|
|
{input: "-12.3456789", prec: 9, expected: "-12.345678900"},
|
|
{input: "12.3456789", prec: 7, expected: "12.3456789"},
|
|
{input: "-12.3456789", prec: 7, expected: "-12.3456789"},
|
|
{input: "12.3456789", prec: 5, expected: "12.34567"},
|
|
{input: "-12.3456789", prec: 5, expected: "-12.34567"},
|
|
{input: "12.3456789", prec: 1, expected: "12.3"},
|
|
{input: "-12.3456789", prec: 1, expected: "-12.3"},
|
|
{input: "12.3456789", prec: 0, expected: "12"},
|
|
{input: "-12.3456789", prec: 0, expected: "-12"},
|
|
{input: "12.3456789", prec: -1, expected: "10"},
|
|
{input: "-12.3456789", prec: -1, expected: "-10"},
|
|
{input: "12.3456789", prec: -2, expected: "0"},
|
|
{input: "-12.3456789", prec: -2, expected: "0"},
|
|
{input: "12.3456789", prec: -3, expected: "0"},
|
|
{input: "-12.3456789", prec: -3, expected: "0"},
|
|
|
|
{input: "12345678.9", prec: 10, expected: "12345678.9000000000"},
|
|
{input: "-12345678.9", prec: 10, expected: "-12345678.9000000000"},
|
|
{input: "12345678.9", prec: 3, expected: "12345678.900"},
|
|
{input: "-12345678.9", prec: 3, expected: "-12345678.900"},
|
|
{input: "12345678.9", prec: 1, expected: "12345678.9"},
|
|
{input: "-12345678.9", prec: 1, expected: "-12345678.9"},
|
|
{input: "12345678.9", prec: 0, expected: "12345678"},
|
|
{input: "-12345678.9", prec: 0, expected: "-12345678"},
|
|
{input: "12345678.9", prec: -2, expected: "12345600"},
|
|
{input: "-12345678.9", prec: -2, expected: "-12345600"},
|
|
{input: "12345678.9", prec: -5, expected: "12300000"},
|
|
{input: "-12345678.9", prec: -5, expected: "-12300000"},
|
|
{input: "12345678.9", prec: -7, expected: "10000000"},
|
|
{input: "-12345678.9", prec: -7, expected: "-10000000"},
|
|
{input: "12345678.9", prec: -8, expected: "0"},
|
|
{input: "-12345678.9", prec: -8, expected: "0"},
|
|
{input: "12345678.9", prec: -10, expected: "0"},
|
|
{input: "-12345678.9", prec: -10, expected: "0"},
|
|
|
|
{input: "123000", prec: 7, expected: "123000.0000000"},
|
|
{input: "-123000", prec: 7, expected: "-123000.0000000"},
|
|
{input: "123000", prec: 2, expected: "123000.00"},
|
|
{input: "-123000", prec: 2, expected: "-123000.00"},
|
|
{input: "123000", prec: 0, expected: "123000"},
|
|
{input: "-123000", prec: 0, expected: "-123000"},
|
|
{input: "123000", prec: -1, expected: "123000"},
|
|
{input: "-123000", prec: -1, expected: "-123000"},
|
|
{input: "123000", prec: -5, expected: "100000"},
|
|
{input: "-123000", prec: -5, expected: "-100000"},
|
|
{input: "123000", prec: -6, expected: "0"},
|
|
{input: "-123000", prec: -6, expected: "0"},
|
|
{input: "123000", prec: -8, expected: "0"},
|
|
{input: "-123000", prec: -8, expected: "0"},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
t.Run(fmt.Sprintf("%s with prec = %d, expected %s", c.input, c.prec, c.expected), func(t *testing.T) {
|
|
v := MustNewFromString(c.input)
|
|
s := v.FormatString(c.prec)
|
|
assert.Equal(t, c.expected, s)
|
|
})
|
|
}
|
|
} |