83 lines
2.4 KiB
Go
83 lines
2.4 KiB
Go
package mujica
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import (
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"fmt"
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"testing"
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"github.com/egoist/mygo/ui"
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)
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var pieSlices = []ChartSlice{{"Wax", 50}, {"Oil", 30}, {"Myrrh", 12}, {"Salt", 4}, {"Ash", 4}}
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func TestPieMerge(t *testing.T) {
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got := pieMerge(pieSlices, 20, "Other")
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if fmt.Sprint(got) != "[{Wax 50} {Oil 30} {Myrrh 12} {Other 8}]" {
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t.Fatalf("merge 20°: %v", got)
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}
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if got := pieMerge(pieSlices[:4], 20, "Other"); len(got) != 4 {
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t.Fatalf("a single narrow slice merged: %v", got)
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}
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}
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func TestPieChartReadoutAndHover(t *testing.T) {
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h := &chartHarness{build: func(c *ui.Context) ChartResult {
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return PieChart(c, pieSlices, PieChartOptions{Frame: ChartFrame{Label: "Stores"}, Donut: true, MinAngle: 20})
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}}
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tt := ui.NewTester(h.view, 520, 420)
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if !tt.HasText("Other") {
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t.Fatalf("legend lacks Other: %q", tt.Texts())
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}
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tabTo(t, tt, "Stores")
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tt.Key(0, ui.KeyEnd)
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if got := chartReadout(tt); got != "Other · 8 · 8.0%" {
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t.Fatalf("readout %q", got)
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}
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b := h.res.Element.Bounds()
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plotTop := b.Y + 38 // below the one-line legend
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cy := plotTop + 120
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tt.Move(b.X+b.W/2+60, cy-40) // upper right: the first slice
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if got := chartReadout(tt); got != "Wax · 50 · 50.0%" {
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t.Fatalf("hover %q", got)
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}
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tt.Key(0, ui.KeyEscape)
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tt.Move(b.X+b.W/2, cy) // the hole
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if h.res.Point != -1 {
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t.Fatalf("hole picked %d", h.res.Point)
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}
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}
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func TestPieChartBad(t *testing.T) {
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for _, s := range [][]ChartSlice{{{"a", -1}}, {{"", 1}}} {
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func() {
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defer func() {
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if recover() == nil {
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t.Errorf("%v: no panic", s)
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}
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}()
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ui.NewTester(func(c *ui.Context) {
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Use(c, Settings{})
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PieChart(c, s, PieChartOptions{Frame: ChartFrame{Label: "x"}})
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}, 300, 300)
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}()
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}
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h := &chartHarness{build: func(c *ui.Context) ChartResult {
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return PieChart(c, []ChartSlice{{"a", 0}}, PieChartOptions{Frame: ChartFrame{Label: "x"}})
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}}
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if tt := ui.NewTester(h.view, 300, 300); !tt.HasText("No data") {
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t.Fatal("zero total is not empty")
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}
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}
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func TestPieChartSnapshot(t *testing.T) {
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snapshot(t, "pie_chart", 640, 360, func(c *ui.Context) {
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ui.Row(c).Padding(16).Gap(16).Children(func() {
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ui.Column(c).Width(296).Children(func() {
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PieChart(c, pieSlices, PieChartOptions{Frame: ChartFrame{Label: "Pie", Height: 220}})
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})
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ui.Column(c).Width(296).Children(func() {
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PieChart(c, pieSlices, PieChartOptions{Frame: ChartFrame{Label: "Donut", Height: 220}, Donut: true, MinAngle: 20})
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})
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})
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})
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}
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