milergeo added

internal/assignment/maxactive_test.go

@@ -1,6 +1,9 @@
 package assignment
 
-import "testing"
+import (
+	"testing"
+	"time"
+)
 
 // The per-miler concurrent-stop cap.
 //
@@ -30,3 +33,22 @@ func TestMaxActiveBookings(t *testing.T) {
 		}
 	}
 }
+
+// The cap counts only stops assigned since midnight India time, so an order
+// left open yesterday or last month no longer blocks a working rider.
+func TestStartOfISTDay(t *testing.T) {
+	ist := time.FixedZone("IST", 5*3600+30*60)
+	cases := []struct{ now, want time.Time }{
+		// 11:43 IST on 6 Oct -> 00:00 IST 6 Oct
+		{time.Date(2026, 10, 6, 11, 43, 0, 0, ist), time.Date(2026, 10, 6, 0, 0, 0, 0, ist)},
+		// 20:00 UTC on 5 Oct is already 01:30 on 6 Oct in India
+		{time.Date(2026, 10, 5, 20, 0, 0, 0, time.UTC), time.Date(2026, 10, 6, 0, 0, 0, 0, ist)},
+		// 18:29 UTC on 5 Oct is still 23:59 on 5 Oct in India
+		{time.Date(2026, 10, 5, 18, 29, 0, 0, time.UTC), time.Date(2026, 10, 5, 0, 0, 0, 0, ist)},
+	}
+	for _, c := range cases {
+		if got := startOfISTDay(c.now); !got.Equal(c.want) {
+			t.Errorf("startOfISTDay(%v) = %v, want %v", c.now, got, c.want)
+		}
+	}
+}