Charts I: components 101-120

calendar_heatmap_test.go

@@ -0,0 +1,95 @@
+package mujica
+
+import (
+	"testing"
+	"time"
+
+	"github.com/egoist/mygo/ui"
+)
+
+func calendarValues() map[Date]float64 {
+	m := map[Date]float64{}
+	d := Date{Year: 2026, Month: time.January, Day: 1}
+	for i := range 365 {
+		if i%3 == 0 {
+			m[d.AddDays(i)] = float64(i % 11)
+		}
+	}
+	return m
+}
+
+func TestCalendarHeatmapKeysAndYear(t *testing.T) {
+	year := 2026
+	values := 0
+	start := WeekStartMonday
+	h := &chartHarness{build: func(c *ui.Context) ChartResult {
+		r := CalendarHeatmap(c, &year, calendarValues(), CalendarHeatmapOptions{Frame: ChartFrame{Label: "Prayers"}, WeekStart: start})
+		if r.ValueChanged() {
+			values++
+		}
+		return r
+	}}
+	tt := ui.NewTester(h.view, 560, 420)
+	tabTo(t, tt, "Prayers")
+	tt.Key(0, ui.KeyRight)
+	if got := chartReadout(tt); got != "2026-01-01 · 0" {
+		t.Fatalf("first day %q", got)
+	}
+	tt.Key(0, ui.KeyRight) // a week later
+	tt.Key(0, ui.KeyDown)  // a day later
+	if got := chartReadout(tt); got != "2026-01-09 · no value" {
+		t.Fatalf("week and day %q", got)
+	}
+	tt.Key(0, ui.KeyEnd)
+	if got := chartReadout(tt); got != "2026-12-31 · no value" {
+		t.Fatalf("End %q", got)
+	}
+	if err := tt.Click("Next year"); err != nil {
+		t.Fatal(err)
+	}
+	if year != 2027 || values != 1 || !tt.HasText("2027") {
+		t.Fatalf("year %d events %d", year, values)
+	}
+}
+
+func TestCalendarHeatmapWeekStartHover(t *testing.T) {
+	year := 2026 // 1 January 2026 is a Thursday
+	for _, tc := range []struct {
+		start WeekStart
+		row   int
+	}{{WeekStartSunday, 4}, {WeekStartMonday, 3}} {
+		h := &chartHarness{build: func(c *ui.Context) ChartResult {
+			return CalendarHeatmap(c, &year, calendarValues(), CalendarHeatmapOptions{Frame: ChartFrame{Label: "Prayers"}, WeekStart: tc.start})
+		}}
+		tt := ui.NewTester(h.view, 560, 420)
+		b := h.res.Element.Bounds()
+		plotY := b.Y + b.H - 20 - 8 - 240 // above the readout line and gap
+		step := min((b.W-36)/53, float32(240-48)/7)
+		tt.Move(b.X+32+step/2, plotY+18+float32(tc.row)*step+step/2)
+		if got := chartReadout(tt); got != "2026-01-01 · 0" {
+			t.Fatalf("start %d: row %d reads %q", tc.start, tc.row, got)
+		}
+	}
+}
+
+func TestCalendarHeatmapBadYear(t *testing.T) {
+	defer func() {
+		if recover() == nil {
+			t.Fatal("no panic")
+		}
+	}()
+	year := 0
+	ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		CalendarHeatmap(c, &year, nil, CalendarHeatmapOptions{Frame: ChartFrame{Label: "x"}})
+	}, 300, 300)
+}
+
+func TestCalendarHeatmapSnapshot(t *testing.T) {
+	snapshot(t, "calendar_heatmap", 600, 260, func(c *ui.Context) {
+		year := 2026
+		ui.Column(c).Padding(16).Children(func() {
+			CalendarHeatmap(c, &year, calendarValues(), CalendarHeatmapOptions{Frame: ChartFrame{Label: "Prayers", Height: 150}, WeekStart: WeekStartMonday})
+		})
+	})
+}