WIP components (as built)

trading_session_clock_test.go

@@ -0,0 +1,55 @@
+package mujica
+
+import (
+	"github.com/egoist/mygo/ui"
+	"testing"
+	"time"
+)
+
+func TestTradingSessionClockZonesBoundariesAndHoliday(t *testing.T) {
+	ny := SessionMarket{Name: "NYSE", Location: mktNewYork(), Sessions: []TradingSession{{MarketPreMarket, 240, 570}, {MarketOpen, 570, 960}, {MarketAfterHours, 960, 1200}}}
+	for _, tc := range []struct {
+		minute int
+		phase  MarketPhase
+	}{{239, MarketClosed}, {240, MarketPreMarket}, {569, MarketPreMarket}, {570, MarketOpen}, {960, MarketAfterHours}, {1200, MarketClosed}} {
+		local := time.Date(2026, 10, 5, tc.minute/60, tc.minute%60, 0, 0, ny.Location)
+		phase, next, _ := tradingSessionPhase(ny, local)
+		if phase != tc.phase || !next.After(local) {
+			t.Fatalf("at %d phase %d next %v", tc.minute, phase, next)
+		}
+	}
+	tt := chatTester(960, 260, func(c *ui.Context) {
+		TradingSessionClock(c, []SessionMarket{ny, {Name: "SSE", Location: time.FixedZone("CST", 8*3600), Holiday: true}}, TradingSessionClockOptions{Now: mktNow})
+	})
+	if !tt.HasText("10:30 EDT") || !tt.HasText("22:30 CST") || !tt.HasText("Holiday") {
+		t.Fatalf("zones %q", tt.Texts())
+	}
+	marketsPanic(t, func(c *ui.Context) {
+		TradingSessionClock(c, []SessionMarket{{Name: "Bad"}}, TradingSessionClockOptions{})
+	})
+}
+func TestTradingSessionClockSnapshot(t *testing.T) {
+
+	snapshot(t, "trading_session_clock", 720, 220, func(c *ui.Context) {
+		ui.Column(c).Padding(16).Gap(12).Fill().Children(func() {
+			TradingSessionClock(c, []SessionMarket{
+				{Name: "NYSE", Location: mktNewYork(), Sessions: []TradingSession{{MarketPreMarket, 240, 570}, {MarketOpen, 570, 960}, {MarketAfterHours, 960, 1200}}},
+				{Name: "SSE", Location: time.FixedZone("CST", 8*3600), Sessions: []TradingSession{{MarketOpen, 570, 690}, {MarketOpen, 780, 900}}},
+			}, TradingSessionClockOptions{Now: mktNow})
+
+		})
+	})
+}
+
+func TestTradingSessionClockDST(t *testing.T) {
+	loc, err := time.LoadLocation("America/New_York")
+	if err != nil {
+		t.Fatal(err)
+	}
+	m := SessionMarket{Name: "NYSE", Location: loc, Sessions: []TradingSession{{MarketOpen, 570, 960}}}
+	local := time.Date(2026, 3, 8, 8, 0, 0, 0, loc)
+	_, next, _ := tradingSessionPhase(m, local)
+	if next.Hour() != 9 || next.Minute() != 30 {
+		t.Fatalf("DST open %v", next)
+	}
+}