allow 'zero y-range delta' (#72)
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parent
7c3982fe3d
commit
2dc8482db3
4 changed files with 8 additions and 22 deletions
6
chart.go
6
chart.go
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@ -317,9 +317,6 @@ func (c Chart) checkRanges(xr, yr, yra Range) error {
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if math.IsNaN(yDelta) {
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return errors.New("nan y-range delta")
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}
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if yDelta == 0 {
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return errors.New("zero y-range delta")
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}
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if c.hasSecondarySeries() {
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yraDelta := yra.GetDelta()
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@ -329,9 +326,6 @@ func (c Chart) checkRanges(xr, yr, yra Range) error {
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if math.IsNaN(yraDelta) {
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return errors.New("nan secondary y-range delta")
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}
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if yraDelta == 0 {
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return errors.New("zero secondary y-range delta")
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}
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}
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return nil
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@ -443,22 +443,6 @@ func TestChartCheckRanges(t *testing.T) {
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assert.Nil(c.checkRanges(xr, yr, yra))
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}
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func TestChartCheckRangesFailure(t *testing.T) {
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assert := assert.New(t)
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c := Chart{
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Series: []Series{
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ContinuousSeries{
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XValues: []float64{1.0, 2.0},
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YValues: []float64{3.14, 3.14},
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},
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},
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}
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xr, yr, yra := c.getRanges()
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assert.NotNil(c.checkRanges(xr, yr, yra))
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}
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func TestChartCheckRangesWithRanges(t *testing.T) {
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assert := assert.New(t)
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@ -93,12 +93,18 @@ func (m mathUtil) GetRoundToForDelta(delta float64) float64 {
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// RoundUp rounds up to a given roundTo value.
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func (m mathUtil) RoundUp(value, roundTo float64) float64 {
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if roundTo < 0.000000000000001 {
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return value
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}
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d1 := math.Ceil(value / roundTo)
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return d1 * roundTo
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}
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// RoundDown rounds down to a given roundTo value.
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func (m mathUtil) RoundDown(value, roundTo float64) float64 {
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if roundTo < 0.000000000000001 {
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return value
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}
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d1 := math.Floor(value / roundTo)
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return d1 * roundTo
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}
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@ -78,6 +78,7 @@ func TestRoundUp(t *testing.T) {
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assert.Equal(0.5, Math.RoundUp(0.49, 0.1))
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assert.Equal(1.0, Math.RoundUp(0.51, 1.0))
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assert.Equal(0.4999, Math.RoundUp(0.49988, 0.0001))
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assert.Equal(0.123, Math.RoundUp(0.123, 0))
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}
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func TestRoundDown(t *testing.T) {
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@ -85,6 +86,7 @@ func TestRoundDown(t *testing.T) {
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assert.Equal(0.5, Math.RoundDown(0.51, 0.1))
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assert.Equal(1.0, Math.RoundDown(1.01, 1.0))
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assert.Equal(0.5001, Math.RoundDown(0.50011, 0.0001))
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assert.Equal(0.123, Math.RoundDown(0.123, 0))
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}
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func TestPercentDifference(t *testing.T) {
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