adding tests.
This commit is contained in:
Will Charczuk
parent
92e758cc0d
commit
149bc3ad5d
2 changed files with 161 additions and 7 deletions
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@ -3,8 +3,6 @@ package chart
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import (
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"math"
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"time"
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"github.com/wcharczuk/go-chart"
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)
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// CreateContinuousSeriesLastValueLabel returns a (1) value annotation series.
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@ -13,9 +11,9 @@ func CreateContinuousSeriesLastValueLabel(name string, xvalues, yvalues []float6
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Name: name,
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Style: Style{
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Show: true,
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StrokeColor: chart.GetDefaultSeriesStrokeColor(0),
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StrokeColor: GetDefaultSeriesStrokeColor(0),
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},
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Annotations: []chart.Annotation{
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Annotations: []Annotation{
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Annotation{
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X: xvalues[len(xvalues)-1],
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Y: yvalues[len(yvalues)-1],
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@ -31,11 +29,11 @@ func CreateTimeSeriesLastValueLabel(name string, xvalues []time.Time, yvalues []
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Name: name,
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Style: Style{
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Show: true,
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StrokeColor: chart.GetDefaultSeriesStrokeColor(0),
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StrokeColor: GetDefaultSeriesStrokeColor(0),
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},
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Annotations: []chart.Annotation{
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Annotations: []Annotation{
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Annotation{
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X: xvalues[len(xvalues)-1],
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X: float64(xvalues[len(xvalues)-1].Unix()),
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Y: yvalues[len(yvalues)-1],
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Label: valueFormatter(yvalues[len(yvalues)-1]),
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},
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156
annotation_series_test.go
Normal file
156
annotation_series_test.go
Normal file
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@ -0,0 +1,156 @@
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package chart
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import (
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"image/color"
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"testing"
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"time"
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"github.com/blendlabs/go-assert"
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"github.com/wcharczuk/go-chart/drawing"
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)
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func TestCreateContinuousSeriesLastValueLabel(t *testing.T) {
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assert := assert.New(t)
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as := CreateContinuousSeriesLastValueLabel("test", []float64{1, 2, 3}, []float64{4, 5, 6}, FloatValueFormatter)
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assert.Equal("test", as.GetName())
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assert.False(as.GetStyle().IsZero())
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assert.True(as.GetStyle().Show)
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assert.NotEmpty(as.Annotations)
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assert.Equal(3.0, as.Annotations[0].X)
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assert.Equal(6.0, as.Annotations[0].Y)
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assert.Equal("6.00", as.Annotations[0].Label)
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}
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func TestCreateTimeSeriesLastValueLabel(t *testing.T) {
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assert := assert.New(t)
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d := time.Now().AddDate(0, 0, -1)
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as := CreateTimeSeriesLastValueLabel("test", []time.Time{
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time.Now().AddDate(0, 0, -3),
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time.Now().AddDate(0, 0, -2),
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d,
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}, []float64{4, 5, 6}, FloatValueFormatter)
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assert.Equal("test", as.GetName())
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assert.False(as.GetStyle().IsZero())
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assert.True(as.GetStyle().Show)
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assert.NotEmpty(as.Annotations)
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assert.Equal(float64(d.Unix()), as.Annotations[0].X)
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assert.Equal(6.0, as.Annotations[0].Y)
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assert.Equal("6.00", as.Annotations[0].Label)
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}
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func TestAnnotationSeriesMeasure(t *testing.T) {
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assert := assert.New(t)
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as := AnnotationSeries{
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Style: Style{
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Show: true,
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},
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Annotations: []Annotation{
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Annotation{X: 1.0, Y: 1.0, Label: "1.0"},
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Annotation{X: 2.0, Y: 2.0, Label: "2.0"},
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Annotation{X: 3.0, Y: 3.0, Label: "3.0"},
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Annotation{X: 4.0, Y: 4.0, Label: "4.0"},
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},
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}
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r, err := PNG(110, 110)
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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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xrange := Range{
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Min: 1.0,
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Max: 4.0,
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Domain: 100,
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}
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yrange := Range{
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Min: 1.0,
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Max: 4.0,
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Domain: 100,
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}
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cb := Box{
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Top: 5,
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Left: 5,
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Right: 105,
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Bottom: 105,
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Height: 100,
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Width: 100,
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}
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sd := Style{
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FontSize: 10.0,
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Font: f,
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}
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box := as.Measure(r, cb, xrange, yrange, sd)
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assert.False(box.IsZero())
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assert.Equal(-5.0, box.Top)
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assert.Equal(5.0, box.Left)
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assert.Equal(139.0, box.Right) //the top,left annotation sticks up 5px and out ~44px.
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assert.Equal(115.0, box.Bottom)
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}
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func TestAnnotationSeriesRender(t *testing.T) {
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assert := assert.New(t)
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as := AnnotationSeries{
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Style: Style{
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Show: true,
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FillColor: drawing.ColorWhite,
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StrokeColor: drawing.ColorBlack,
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},
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Annotations: []Annotation{
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Annotation{X: 1.0, Y: 1.0, Label: "1.0"},
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Annotation{X: 2.0, Y: 2.0, Label: "2.0"},
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Annotation{X: 3.0, Y: 3.0, Label: "3.0"},
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Annotation{X: 4.0, Y: 4.0, Label: "4.0"},
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},
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}
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r, err := PNG(110, 110)
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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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xrange := Range{
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Min: 1.0,
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Max: 4.0,
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Domain: 100,
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}
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yrange := Range{
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Min: 1.0,
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Max: 4.0,
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Domain: 100,
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}
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cb := Box{
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Top: 5,
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Left: 5,
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Right: 105,
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Bottom: 105,
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Height: 100,
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Width: 100,
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}
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sd := Style{
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FontSize: 10.0,
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Font: f,
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}
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as.Render(r, cb, xrange, yrange, sd)
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rr, isRaster := r.(*rasterRenderer)
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assert.True(isRaster)
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assert.NotNil(rr)
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c := rr.i.At(39, 70)
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converted, isRGBA := color.RGBAModel.Convert(c).(color.RGBA)
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assert.True(isRGBA)
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assert.Equal(3, converted.R)
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assert.Equal(3, converted.G)
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assert.Equal(3, converted.B)
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}
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