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69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
package fixedpoint
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func Test_FormatString(t *testing.T) {
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assert := assert.New(t)
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t.Run("0.57 with prec = 5, expected 0.57", func(t *testing.T) {
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v := MustNewFromString("0.57")
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s := v.FormatString(5)
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assert.Equal("0.57000", s)
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})
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t.Run("0.57123456 with prec = 5, expected 0.57123", func(t *testing.T) {
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v := MustNewFromString("0.57123456")
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s := v.FormatString(5)
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assert.Equal("0.57123", s)
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})
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t.Run("1.23456789 with prec = 9, expected 1.23456789", func(t *testing.T) {
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v := MustNewFromString("1.23456789")
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s := v.FormatString(9)
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assert.Equal("1.234567890", s)
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})
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t.Run("1.02345678 with prec = 9, expected 1.02345678", func(t *testing.T) {
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v := MustNewFromString("1.02345678")
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s := v.FormatString(9)
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assert.Equal("1.023456780", s)
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})
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t.Run("-0.57 with prec = 5, expected -0.57", func(t *testing.T) {
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v := MustNewFromString("-0.57")
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s := v.FormatString(5)
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assert.Equal("-0.57000", s)
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})
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t.Run("-1.23456789 with prec = 9, expected 1.23456789", func(t *testing.T) {
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v := MustNewFromString("-1.23456789")
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s := v.FormatString(9)
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assert.Equal("-1.234567890", s)
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})
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t.Run("-0.00001234 with prec = 3, expected = 0.000", func(t *testing.T) {
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v := MustNewFromString("-0.0001234")
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s := v.FormatString(3)
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assert.Equal("0.000", s)
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})
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// comment out negative precision for dnum testing
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/*
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t.Run("12.3456789 with prec = -1, expected 10", func(t *testing.T) {
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v := MustNewFromString("12.3456789")
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s := v.FormatString(-1)
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assert.Equal("10", s)
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})
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t.Run("12.3456789 with prec = -3, expected = 0", func(t *testing.T) {
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v := MustNewFromString("12.3456789")
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s := v.FormatString(-2)
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assert.Equal("0", s)
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})
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*/
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}
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