310 lines
7 KiB
Go
310 lines
7 KiB
Go
package chart
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import (
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"bytes"
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"math"
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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 TestBarChartRender(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{
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Width: 1024,
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Title: "Test Title",
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Bars: []Value{
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{Value: 1.0, Label: "One"},
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{Value: 2.0, Label: "Two"},
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{Value: 3.0, Label: "Three"},
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{Value: 4.0, Label: "Four"},
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{Value: 5.0, Label: "Five"},
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},
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}
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buf := bytes.NewBuffer([]byte{})
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err := bc.Render(PNG, buf)
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testutil.AssertNil(t, err)
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testutil.AssertNotZero(t, buf.Len())
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}
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func TestBarChartRenderZero(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{
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Width: 1024,
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Title: "Test Title",
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Bars: []Value{
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{Value: 0.0, Label: "One"},
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{Value: 0.0, Label: "Two"},
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},
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}
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buf := bytes.NewBuffer([]byte{})
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err := bc.Render(PNG, buf)
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testutil.AssertNotNil(t, err)
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}
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func TestBarChartProps(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{}
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testutil.AssertEqual(t, DefaultDPI, bc.GetDPI())
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bc.DPI = 100
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testutil.AssertEqual(t, 100, bc.GetDPI())
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testutil.AssertNil(t, bc.GetFont())
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f, err := GetDefaultFont()
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testutil.AssertNil(t, err)
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bc.Font = f
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testutil.AssertNotNil(t, bc.GetFont())
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testutil.AssertEqual(t, DefaultChartWidth, bc.GetWidth())
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bc.Width = DefaultChartWidth - 1
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testutil.AssertEqual(t, DefaultChartWidth-1, bc.GetWidth())
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testutil.AssertEqual(t, DefaultChartHeight, bc.GetHeight())
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bc.Height = DefaultChartHeight - 1
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testutil.AssertEqual(t, DefaultChartHeight-1, bc.GetHeight())
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testutil.AssertEqual(t, DefaultBarSpacing, bc.GetBarSpacing())
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bc.BarSpacing = 150
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testutil.AssertEqual(t, 150, bc.GetBarSpacing())
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testutil.AssertEqual(t, DefaultBarWidth, bc.GetBarWidth())
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bc.BarWidth = 75
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testutil.AssertEqual(t, 75, bc.GetBarWidth())
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}
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func TestBarChartRenderNoBars(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{}
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err := bc.Render(PNG, bytes.NewBuffer([]byte{}))
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testutil.AssertNotNil(t, err)
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}
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func TestBarChartGetRanges(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{}
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yr := bc.getRanges()
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testutil.AssertNotNil(t, yr)
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testutil.AssertFalse(t, yr.IsZero())
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testutil.AssertEqual(t, -math.MaxFloat64, yr.GetMax())
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testutil.AssertEqual(t, math.MaxFloat64, yr.GetMin())
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}
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func TestBarChartGetRangesBarsMinMax(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{
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Bars: []Value{
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{Value: 1.0},
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{Value: 10.0},
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},
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}
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yr := bc.getRanges()
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testutil.AssertNotNil(t, yr)
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testutil.AssertFalse(t, yr.IsZero())
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testutil.AssertEqual(t, 10, yr.GetMax())
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testutil.AssertEqual(t, 1, yr.GetMin())
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}
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func TestBarChartGetRangesMinMax(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{
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YAxis: YAxis{
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Range: &ContinuousRange{
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Min: 5.0,
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Max: 15.0,
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},
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Ticks: []Tick{
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{Value: 7.0, Label: "Foo"},
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{Value: 11.0, Label: "Foo2"},
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},
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},
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Bars: []Value{
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{Value: 1.0},
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{Value: 10.0},
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},
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}
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yr := bc.getRanges()
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testutil.AssertNotNil(t, yr)
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testutil.AssertFalse(t, yr.IsZero())
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testutil.AssertEqual(t, 15, yr.GetMax())
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testutil.AssertEqual(t, 5, yr.GetMin())
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}
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func TestBarChartGetRangesTicksMinMax(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{
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YAxis: YAxis{
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Ticks: []Tick{
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{Value: 7.0, Label: "Foo"},
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{Value: 11.0, Label: "Foo2"},
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},
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},
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Bars: []Value{
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{Value: 1.0},
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{Value: 10.0},
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},
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}
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yr := bc.getRanges()
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testutil.AssertNotNil(t, yr)
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testutil.AssertFalse(t, yr.IsZero())
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testutil.AssertEqual(t, 11, yr.GetMax())
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testutil.AssertEqual(t, 7, yr.GetMin())
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}
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func TestBarChartHasAxes(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{}
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testutil.AssertTrue(t, bc.hasAxes())
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bc.YAxis = YAxis{
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Style: Hidden(),
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}
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testutil.AssertFalse(t, bc.hasAxes())
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}
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func TestBarChartGetDefaultCanvasBox(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{}
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b := bc.getDefaultCanvasBox()
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testutil.AssertFalse(t, b.IsZero())
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}
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func TestBarChartSetRangeDomains(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{}
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cb := bc.box()
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yr := bc.getRanges()
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yr2 := bc.setRangeDomains(cb, yr)
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testutil.AssertNotZero(t, yr2.GetDomain())
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}
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func TestBarChartGetValueFormatters(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{}
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vf := bc.getValueFormatters()
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testutil.AssertNotNil(t, vf)
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testutil.AssertEqual(t, "1234.00", vf(1234.0))
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bc.YAxis.ValueFormatter = func(_ interface{}) string { return "test" }
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testutil.AssertEqual(t, "test", bc.getValueFormatters()(1234))
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}
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func TestBarChartGetAxesTicks(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{
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Bars: []Value{
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{Value: 1.0},
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{Value: 2.0},
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{Value: 3.0},
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},
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}
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r, err := PNG(128, 128)
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testutil.AssertNil(t, err)
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yr := bc.getRanges()
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yf := bc.getValueFormatters()
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bc.YAxis.Style.Hidden = true
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ticks := bc.getAxesTicks(r, yr, yf)
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testutil.AssertEmpty(t, ticks)
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bc.YAxis.Style.Hidden = false
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ticks = bc.getAxesTicks(r, yr, yf)
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testutil.AssertLen(t, ticks, 2)
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}
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func TestBarChartCalculateEffectiveBarSpacing(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{
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Width: 1024,
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BarWidth: 10,
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Bars: []Value{
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{Value: 1.0, Label: "One"},
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{Value: 2.0, Label: "Two"},
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{Value: 3.0, Label: "Three"},
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{Value: 4.0, Label: "Four"},
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{Value: 5.0, Label: "Five"},
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},
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}
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spacing := bc.calculateEffectiveBarSpacing(bc.box())
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testutil.AssertNotZero(t, spacing)
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bc.BarWidth = 250
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spacing = bc.calculateEffectiveBarSpacing(bc.box())
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testutil.AssertZero(t, spacing)
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}
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func TestBarChartCalculateEffectiveBarWidth(t *testing.T) {
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// replaced new assertions helper
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bc := BarChart{
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Width: 1024,
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BarWidth: 10,
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Bars: []Value{
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{Value: 1.0, Label: "One"},
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{Value: 2.0, Label: "Two"},
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{Value: 3.0, Label: "Three"},
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{Value: 4.0, Label: "Four"},
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{Value: 5.0, Label: "Five"},
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},
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}
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cb := bc.box()
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spacing := bc.calculateEffectiveBarSpacing(bc.box())
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testutil.AssertNotZero(t, spacing)
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barWidth := bc.calculateEffectiveBarWidth(bc.box(), spacing)
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testutil.AssertEqual(t, 10, barWidth)
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bc.BarWidth = 250
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spacing = bc.calculateEffectiveBarSpacing(bc.box())
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testutil.AssertZero(t, spacing)
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barWidth = bc.calculateEffectiveBarWidth(bc.box(), spacing)
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testutil.AssertEqual(t, 199, barWidth)
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testutil.AssertEqual(t, cb.Width()+1, bc.calculateTotalBarWidth(barWidth, spacing))
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bw, bs, total := bc.calculateScaledTotalWidth(cb)
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testutil.AssertEqual(t, spacing, bs)
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testutil.AssertEqual(t, barWidth, bw)
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testutil.AssertEqual(t, cb.Width()+1, total)
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}
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func TestBarChatGetTitleFontSize(t *testing.T) {
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// replaced new assertions helper
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size := BarChart{Width: 2049, Height: 2049}.getTitleFontSize()
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testutil.AssertEqual(t, 48, size)
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size = BarChart{Width: 1025, Height: 1025}.getTitleFontSize()
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testutil.AssertEqual(t, 24, size)
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size = BarChart{Width: 513, Height: 513}.getTitleFontSize()
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testutil.AssertEqual(t, 18, size)
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size = BarChart{Width: 257, Height: 257}.getTitleFontSize()
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testutil.AssertEqual(t, 12, size)
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size = BarChart{Width: 128, Height: 128}.getTitleFontSize()
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testutil.AssertEqual(t, 10, size)
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}
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