package chart import ( "testing" assert "github.com/blend/go-sdk/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: 0.0, Max: 10.0, Domain: 256, Descending: true, } 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(9.0, ticks[1].Value) assert.Equal(1.0, ticks[len(ticks)-2].Value) assert.Equal(0.0, ticks[len(ticks)-1].Value) }