WIP components (as built)

performance_chart_test.go

@@ -0,0 +1,69 @@
+package mujica
+
+import (
+	"github.com/egoist/mygo/ui"
+	"math"
+	"testing"
+)
+
+func TestPerformanceChartBenchmarkDrawdownAndKeys(t *testing.T) {
+	values := []float64{100, 110, 88, 120}
+	times := mktTimes(4)
+	var last ChartResult
+	tt := chatTester(760, 420, func(c *ui.Context) {
+		last = PerformanceChart(c, values, PerformanceChartOptions{Frame: ChartFrame{Label: "Performance"}, Times: times, Benchmark: []float64{100, 105, 108, 112}})
+	})
+	if dd := MaxDrawdown(values); dd.Peak != 1 || dd.Trough != 2 || math.Abs(dd.Percent+20) > 1e-9 {
+		t.Fatalf("drawdown %+v", dd)
+	}
+	tt.Key(0, ui.KeyTab)
+	tt.Key(0, ui.KeyTab)
+	tt.Key(0, ui.KeyTab)
+	tt.Key(0, ui.KeyEnd)
+	if last.Point != 3 || !tt.HasText("2026-01-04 · Portfolio +20.00% · Benchmark +12.00%") {
+		t.Fatalf("point %d text %q", last.Point, tt.Texts())
+	}
+	_ = tt.Click("Benchmark")
+	tt.Key(0, ui.KeyTab)
+	tt.Key(0, ui.KeyEnd)
+	if !tt.HasText("2026-01-04 · Portfolio +20.00%") {
+		t.Fatalf("legend %q", tt.Texts())
+	}
+	marketsPanic(t, func(c *ui.Context) {
+		PerformanceChart(c, []float64{-1}, PerformanceChartOptions{Frame: ChartFrame{Label: "x"}})
+	})
+}
+func TestPerformanceChartSnapshot(t *testing.T) {
+
+	snapshot(t, "performance_chart", 720, 380, func(c *ui.Context) {
+		ui.Column(c).Padding(16).Gap(12).Fill().Children(func() {
+			PerformanceChart(c, mktSeries(120, 0), PerformanceChartOptions{Frame: ChartFrame{Label: "Performance"}, Times: mktTimes(120), Benchmark: mktSeries(120, 1)})
+
+		})
+	})
+}
+
+func TestPerformanceChartRequiresTimes(t *testing.T) {
+	marketsPanic(t, func(c *ui.Context) {
+		PerformanceChart(c, []float64{100, 110}, PerformanceChartOptions{Frame: ChartFrame{Label: "x"}})
+	})
+}
+
+func TestPerformanceChartDateVersion(t *testing.T) {
+	values := []float64{100, 105, 110}
+	times := mktTimes(3)
+	version := 0
+	var axis chartX
+	tt := chatTester(760, 420, func(c *ui.Context) {
+		r := PerformanceChart(c, values, PerformanceChartOptions{Frame: ChartFrame{Label: "Performance"}, Times: times, Version: version})
+		memo := ui.Local(r.Element, "mujica.memo.x", func() chartMemoEntry { return chartMemoEntry{} })
+		axis = memo.val.(chartX)
+	})
+	times[2] = times[0].AddDate(0, 0, 9)
+	values[2] = 120
+	version++
+	tt.Frame()
+	if got := axis.vals[2]; got != float64(times[2].UnixNano())/1e9 {
+		t.Fatalf("axis time %v", got)
+	}
+}