89 lines
1.6 KiB
Go
89 lines
1.6 KiB
Go
package chart
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import (
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"testing"
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"github.com/blendlabs/go-assert"
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)
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func TestYAxisGetTickCount(t *testing.T) {
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assert := assert.New(t)
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r, err := PNG(1024, 1024)
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assert.Nil(err)
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f, err := GetDefaultFont()
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assert.Nil(err)
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ya := YAxis{}
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yr := Range{Min: 10, Max: 100, Domain: 1024}
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styleDefaults := Style{
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Font: f,
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FontSize: 10.0,
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}
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vf := FloatValueFormatter
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count := ya.getTickCount(r, yr, styleDefaults, vf)
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assert.Equal(34, count)
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}
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func TestYAxisGetTickStep(t *testing.T) {
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assert := assert.New(t)
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r, err := PNG(1024, 1024)
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assert.Nil(err)
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f, err := GetDefaultFont()
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assert.Nil(err)
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ya := YAxis{}
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yr := Range{Min: 10, Max: 100, Domain: 1024}
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styleDefaults := Style{
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Font: f,
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FontSize: 10.0,
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}
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vf := FloatValueFormatter
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step := ya.getTickStep(r, yr, styleDefaults, vf)
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assert.Equal(yr.Delta()/34.0, step)
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}
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func TestYAxisGetTicks(t *testing.T) {
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assert := assert.New(t)
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r, err := PNG(1024, 1024)
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assert.Nil(err)
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f, err := GetDefaultFont()
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assert.Nil(err)
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ya := YAxis{}
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yr := Range{Min: 10, Max: 100, Domain: 1024}
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styleDefaults := Style{
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Font: f,
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FontSize: 10.0,
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}
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vf := FloatValueFormatter
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ticks := ya.GetTicks(r, yr, styleDefaults, vf)
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assert.Len(ticks, 35)
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}
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func TestYAxisGetTicksWithUserDefaults(t *testing.T) {
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assert := assert.New(t)
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r, err := PNG(1024, 1024)
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assert.Nil(err)
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f, err := GetDefaultFont()
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assert.Nil(err)
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ya := YAxis{
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Ticks: []Tick{Tick{Value: 1.0, Label: "1.0"}},
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}
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yr := Range{Min: 10, Max: 100, Domain: 1024}
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styleDefaults := Style{
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Font: f,
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FontSize: 10.0,
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}
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vf := FloatValueFormatter
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ticks := ya.GetTicks(r, yr, styleDefaults, vf)
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assert.Len(ticks, 1)
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}
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