73 lines
2.1 KiB
Go
73 lines
2.1 KiB
Go
package mujica
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import (
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"math"
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"testing"
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"github.com/egoist/mygo/ui"
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)
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var chordNames = []string{"Nave", "Choir", "Crypt", "Cloister"}
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var chordMatrix = [][]float64{{0, 5, 2, 3}, {4, 0, 1, 0}, {1, 2, 0, 6}, {2, 0, 3, 0}}
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func TestChordPlace(t *testing.T) {
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l := chordPlace(chordMatrix)
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if l.total != 29 || len(l.pairs) != 5 {
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t.Fatalf("total %v pairs %v", l.total, l.pairs)
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}
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span := 2*math.Pi - 4*chordGap
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if got := l.arcs[0][1] - l.arcs[0][0]; math.Abs(got-span*10/29) > 1e-9 {
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t.Fatalf("Nave arc %v", got)
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}
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if l.sub[0][1][1]-l.sub[0][1][0] <= 0 || l.sub[1][3][1] != l.sub[1][3][0] {
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t.Fatal("sub-arcs not sized by the matrix")
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}
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}
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func TestChordDiagramReadout(t *testing.T) {
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h := &chartHarness{build: func(c *ui.Context) ChartResult {
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return ChordDiagram(c, chordNames, chordMatrix, ChordDiagramOptions{Frame: ChartFrame{Label: "Paths"}})
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}}
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tt := ui.NewTester(h.view, 520, 420)
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tabTo(t, tt, "Paths")
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tt.Key(0, ui.KeyRight)
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if got := chartReadout(tt); got != "Nave · out 10 · in 7" {
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t.Fatalf("group %q", got)
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}
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tt.Key(0, ui.KeyEnd)
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if got := chartReadout(tt); got != "Crypt → Cloister 6 · Cloister → Crypt 3" {
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t.Fatalf("chord %q", got)
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}
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tt.Key(0, ui.KeyEscape)
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b := h.res.Element.Bounds()
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cx, cy, rad := b.X+b.W/2, b.Y+120, float32(240)/2-30
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tt.Move(cx+(rad+6)*0.5, cy-(rad+6)*0.866) // 30°: inside the first arc
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if h.res.Point != 0 {
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t.Fatalf("hover %d", h.res.Point)
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}
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}
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func TestChordDiagramBad(t *testing.T) {
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for name, m := range map[string][][]float64{"ragged": {{1, 2}, {1}}, "negative": {{0, -1}, {1, 0}}} {
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func() {
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defer func() {
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if recover() == nil {
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t.Errorf("%s: no panic", name)
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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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ChordDiagram(c, []string{"a", "b"}, m, ChordDiagramOptions{Frame: ChartFrame{Label: "x"}})
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}, 300, 300)
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}()
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}
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}
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func TestChordDiagramSnapshot(t *testing.T) {
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snapshot(t, "chord_diagram", 520, 340, func(c *ui.Context) {
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ui.Column(c).Padding(16).Children(func() {
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ChordDiagram(c, chordNames, chordMatrix, ChordDiagramOptions{Frame: ChartFrame{Label: "Paths"}})
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})
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})
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}
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