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adding tests.

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This commit is contained in:
Will Charczuk 2016-07-10 21:00:03 -07:00
parent 92e758cc0d
commit 149bc3ad5d
2 changed files with 161 additions and 7 deletions
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12
annotation_series.go
View File

@ -3,8 +3,6 @@ package chart
import (
"math"
"time"
"github.com/wcharczuk/go-chart"
)
// CreateContinuousSeriesLastValueLabel returns a (1) value annotation series.
@ -13,9 +11,9 @@ func CreateContinuousSeriesLastValueLabel(name string, xvalues, yvalues []float6
Name: name,
Style: Style{
Show: true,
StrokeColor: chart.GetDefaultSeriesStrokeColor(0),
StrokeColor: GetDefaultSeriesStrokeColor(0),
},
Annotations: []chart.Annotation{
Annotations: []Annotation{
Annotation{
X: xvalues[len(xvalues)-1],
Y: yvalues[len(yvalues)-1],
@ -31,11 +29,11 @@ func CreateTimeSeriesLastValueLabel(name string, xvalues []time.Time, yvalues []
Name: name,
Style: Style{
Show: true,
StrokeColor: chart.GetDefaultSeriesStrokeColor(0),
StrokeColor: GetDefaultSeriesStrokeColor(0),
},
Annotations: []chart.Annotation{
Annotations: []Annotation{
Annotation{
X: xvalues[len(xvalues)-1],
X: float64(xvalues[len(xvalues)-1].Unix()),
Y: yvalues[len(yvalues)-1],
Label: valueFormatter(yvalues[len(yvalues)-1]),
},

156
annotation_series_test.go Normal file
View File

@ -0,0 +1,156 @@
package chart
import (
"image/color"
"testing"
"time"
"github.com/blendlabs/go-assert"
"github.com/wcharczuk/go-chart/drawing"
)
func TestCreateContinuousSeriesLastValueLabel(t *testing.T) {
assert := assert.New(t)
as := CreateContinuousSeriesLastValueLabel("test", []float64{1, 2, 3}, []float64{4, 5, 6}, FloatValueFormatter)
assert.Equal("test", as.GetName())
assert.False(as.GetStyle().IsZero())
assert.True(as.GetStyle().Show)
assert.NotEmpty(as.Annotations)
assert.Equal(3.0, as.Annotations[0].X)
assert.Equal(6.0, as.Annotations[0].Y)
assert.Equal("6.00", as.Annotations[0].Label)
}
func TestCreateTimeSeriesLastValueLabel(t *testing.T) {
assert := assert.New(t)
d := time.Now().AddDate(0, 0, -1)
as := CreateTimeSeriesLastValueLabel("test", []time.Time{
time.Now().AddDate(0, 0, -3),
time.Now().AddDate(0, 0, -2),
d,
}, []float64{4, 5, 6}, FloatValueFormatter)
assert.Equal("test", as.GetName())
assert.False(as.GetStyle().IsZero())
assert.True(as.GetStyle().Show)
assert.NotEmpty(as.Annotations)
assert.Equal(float64(d.Unix()), as.Annotations[0].X)
assert.Equal(6.0, as.Annotations[0].Y)
assert.Equal("6.00", as.Annotations[0].Label)
}
func TestAnnotationSeriesMeasure(t *testing.T) {
assert := assert.New(t)
as := AnnotationSeries{
Style: Style{
Show: true,
},
Annotations: []Annotation{
Annotation{X: 1.0, Y: 1.0, Label: "1.0"},
Annotation{X: 2.0, Y: 2.0, Label: "2.0"},
Annotation{X: 3.0, Y: 3.0, Label: "3.0"},
Annotation{X: 4.0, Y: 4.0, Label: "4.0"},
},
}
r, err := PNG(110, 110)
assert.Nil(err)
f, err := GetDefaultFont()
assert.Nil(err)
xrange := Range{
Min: 1.0,
Max: 4.0,
Domain: 100,
}
yrange := Range{
Min: 1.0,
Max: 4.0,
Domain: 100,
}
cb := Box{
Top: 5,
Left: 5,
Right: 105,
Bottom: 105,
Height: 100,
Width: 100,
}
sd := Style{
FontSize: 10.0,
Font: f,
}
box := as.Measure(r, cb, xrange, yrange, sd)
assert.False(box.IsZero())
assert.Equal(-5.0, box.Top)
assert.Equal(5.0, box.Left)
assert.Equal(139.0, box.Right) //the top,left annotation sticks up 5px and out ~44px.
assert.Equal(115.0, box.Bottom)
}
func TestAnnotationSeriesRender(t *testing.T) {
assert := assert.New(t)
as := AnnotationSeries{
Style: Style{
Show: true,
FillColor: drawing.ColorWhite,
StrokeColor: drawing.ColorBlack,
},
Annotations: []Annotation{
Annotation{X: 1.0, Y: 1.0, Label: "1.0"},
Annotation{X: 2.0, Y: 2.0, Label: "2.0"},
Annotation{X: 3.0, Y: 3.0, Label: "3.0"},
Annotation{X: 4.0, Y: 4.0, Label: "4.0"},
},
}
r, err := PNG(110, 110)
assert.Nil(err)
f, err := GetDefaultFont()
assert.Nil(err)
xrange := Range{
Min: 1.0,
Max: 4.0,
Domain: 100,
}
yrange := Range{
Min: 1.0,
Max: 4.0,
Domain: 100,
}
cb := Box{
Top: 5,
Left: 5,
Right: 105,
Bottom: 105,
Height: 100,
Width: 100,
}
sd := Style{
FontSize: 10.0,
Font: f,
}
as.Render(r, cb, xrange, yrange, sd)
rr, isRaster := r.(*rasterRenderer)
assert.True(isRaster)
assert.NotNil(rr)
c := rr.i.At(39, 70)
converted, isRGBA := color.RGBAModel.Convert(c).(color.RGBA)
assert.True(isRGBA)
assert.Equal(3, converted.R)
assert.Equal(3, converted.G)
assert.Equal(3, converted.B)
}