package chart import ( "testing" "github.com/blendlabs/go-assert" ) func TestRangeTranslate(t *testing.T) { assert := assert.New(t) values := []float64{1.0, 2.0, 2.5, 2.7, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0} r := ContinuousRange{Domain: 1000} r.Min, r.Max = Math.MinAndMax(values...) // delta = ~7.0 // value = ~5.0 // domain = ~1000 // 5/8 * 1000 ~= assert.Equal(0, r.Translate(1.0)) assert.Equal(1000, r.Translate(8.0)) assert.Equal(572, r.Translate(5.0)) }