69 lines
1.3 KiB
Go
69 lines
1.3 KiB
Go
package chart
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import (
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"bytes"
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"testing"
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"git.smarteching.com/zeni/go-chart/v2/testutil"
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)
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func TestDonutChart(t *testing.T) {
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// replaced new assertions helper
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pie := DonutChart{
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Canvas: Style{
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FillColor: ColorLightGray,
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},
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Values: []Value{
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{Value: 10, Label: "Blue"},
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{Value: 9, Label: "Green"},
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{Value: 8, Label: "Gray"},
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{Value: 7, Label: "Orange"},
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{Value: 6, Label: "HEANG"},
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{Value: 5, Label: "??"},
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{Value: 2, Label: "!!"},
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},
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}
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b := bytes.NewBuffer([]byte{})
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pie.Render(PNG, b)
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testutil.AssertNotZero(t, b.Len())
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}
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func TestDonutChartDropsZeroValues(t *testing.T) {
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// replaced new assertions helper
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pie := DonutChart{
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Canvas: Style{
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FillColor: ColorLightGray,
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},
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Values: []Value{
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{Value: 5, Label: "Blue"},
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{Value: 5, Label: "Green"},
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{Value: 0, Label: "Gray"},
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},
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}
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b := bytes.NewBuffer([]byte{})
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err := pie.Render(PNG, b)
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testutil.AssertNil(t, err)
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}
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func TestDonutChartAllZeroValues(t *testing.T) {
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// replaced new assertions helper
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pie := DonutChart{
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Canvas: Style{
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FillColor: ColorLightGray,
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},
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Values: []Value{
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{Value: 0, Label: "Blue"},
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{Value: 0, Label: "Green"},
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{Value: 0, Label: "Gray"},
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},
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}
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b := bytes.NewBuffer([]byte{})
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err := pie.Render(PNG, b)
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testutil.AssertNotNil(t, err)
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}
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