go-chart/yaxis_test.go

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package chart
import (
"testing"
"github.com/blendlabs/go-assert"
)
func TestYAxisGetTicks(t *testing.T) {
assert := assert.New(t)
r, err := PNG(1024, 1024)
assert.Nil(err)
f, err := GetDefaultFont()
assert.Nil(err)
ya := YAxis{}
yr := &ContinuousRange{Min: 10, Max: 100, Domain: 1024}
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styleDefaults := Style{
Font: f,
FontSize: 10.0,
}
vf := FloatValueFormatter
ticks := ya.GetTicks(r, yr, styleDefaults, vf)
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assert.Len(ticks, 32)
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}
func TestYAxisGetTicksWithUserDefaults(t *testing.T) {
assert := assert.New(t)
r, err := PNG(1024, 1024)
assert.Nil(err)
f, err := GetDefaultFont()
assert.Nil(err)
ya := YAxis{
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Ticks: []Tick{{Value: 1.0, Label: "1.0"}},
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}
yr := &ContinuousRange{Min: 10, Max: 100, Domain: 1024}
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styleDefaults := Style{
Font: f,
FontSize: 10.0,
}
vf := FloatValueFormatter
ticks := ya.GetTicks(r, yr, styleDefaults, vf)
assert.Len(ticks, 1)
}
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func TestYAxisMeasure(t *testing.T) {
assert := assert.New(t)
f, err := GetDefaultFont()
assert.Nil(err)
style := Style{
Font: f,
FontSize: 10.0,
}
r, err := PNG(100, 100)
assert.Nil(err)
ticks := []Tick{{Value: 1.0, Label: "1.0"}, {Value: 2.0, Label: "2.0"}, {Value: 3.0, Label: "3.0"}}
ya := YAxis{}
yab := ya.Measure(r, NewBox(0, 0, 100, 100), &ContinuousRange{Min: 1.0, Max: 3.0, Domain: 100}, style, ticks)
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assert.Equal(32, yab.Width())
assert.Equal(110, yab.Height())
}
func TestYAxisSecondaryMeasure(t *testing.T) {
assert := assert.New(t)
f, err := GetDefaultFont()
assert.Nil(err)
style := Style{
Font: f,
FontSize: 10.0,
}
r, err := PNG(100, 100)
assert.Nil(err)
ticks := []Tick{{Value: 1.0, Label: "1.0"}, {Value: 2.0, Label: "2.0"}, {Value: 3.0, Label: "3.0"}}
ya := YAxis{AxisType: YAxisSecondary}
yab := ya.Measure(r, NewBox(0, 0, 100, 100), &ContinuousRange{Min: 1.0, Max: 3.0, Domain: 100}, style, ticks)
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assert.Equal(32, yab.Width())
assert.Equal(110, yab.Height())
}