58 lines
1.0 KiB
Go
58 lines
1.0 KiB
Go
package chart
|
|
|
|
import (
|
|
"testing"
|
|
|
|
assert "github.com/blendlabs/go-assert"
|
|
)
|
|
|
|
func TestGenerateContinuousTicks(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
f, err := GetDefaultFont()
|
|
assert.Nil(err)
|
|
|
|
r, err := PNG(1024, 1024)
|
|
assert.Nil(err)
|
|
r.SetFont(f)
|
|
|
|
ra := &ContinuousRange{
|
|
Min: 0.0,
|
|
Max: 10.0,
|
|
Domain: 256,
|
|
}
|
|
|
|
vf := FloatValueFormatter
|
|
|
|
ticks := GenerateContinuousTicks(r, ra, false, Style{}, vf)
|
|
assert.NotEmpty(ticks)
|
|
assert.Len(ticks, 11)
|
|
assert.Equal(0.0, ticks[0].Value)
|
|
assert.Equal(10, ticks[len(ticks)-1].Value)
|
|
}
|
|
|
|
func TestGenerateContinuousTicksDescending(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
f, err := GetDefaultFont()
|
|
assert.Nil(err)
|
|
|
|
r, err := PNG(1024, 1024)
|
|
assert.Nil(err)
|
|
r.SetFont(f)
|
|
|
|
ra := &ContinuousRange{
|
|
Min: 10.0,
|
|
Max: 0.0,
|
|
Domain: 256,
|
|
}
|
|
|
|
vf := FloatValueFormatter
|
|
|
|
ticks := GenerateContinuousTicks(r, ra, false, Style{}, vf)
|
|
assert.NotEmpty(ticks)
|
|
assert.Len(ticks, 11)
|
|
assert.Equal(10.0, ticks[0].Value)
|
|
assert.Equal(0.0, ticks[len(ticks)-1].Value)
|
|
}
|