Phase 40: clock tempo at 1 min/s, x5/x10 heavy stride.

tests/HSchool.AppHost.Tests/GameSocketTests.cs

@@ -83,11 +83,11 @@ public class GameSocketTests(AppHostFixture fixture)
         Assert.True(first.Running);
         Assert.Equal(1, first.SpeedIndex);
 
-        // 5 game minutes per real second at ×1, so one second of ticks has to move the calendar.
+        // 1 game minute per real second at ×1, so one second of ticks has to move the calendar.
         var later = await ReceiveClockAfterAsync(socket, TimeSpan.FromSeconds(1));
         var elapsed = ToDate(later) - ToDate(first);
 
-        Assert.InRange(elapsed.TotalMinutes, 3, 8);
+        Assert.InRange(elapsed.TotalMinutes, 0.5, 2);
     }
 
     [Fact]
@@ -208,7 +208,7 @@ public class GameSocketTests(AppHostFixture fixture)
         // presence, not the snapshot" means. Do not wait for the freshly hired teacher in
         // particular: whether somebody hired mid-day comes in today depends on their day plan,
         // and the frozen moment drifts with however long this test's own HTTP calls took (the
-        // school runs at five game minutes per real second until it is paused). Waiting for that
+        // school runs at one game minute per real second until it is paused). Waiting for that
         // one person made this test fail under load.
         await SendAsync(socket, buffer =>
             ProtocolCodec.WriteSetRunning(buffer, new ClientSetRunningMessage(Running: true)));
@@ -281,8 +281,8 @@ public class GameSocketTests(AppHostFixture fixture)
         var later = await ReceiveClockAfterAsync(socket, TimeSpan.FromSeconds(1));
         var elapsed = ToDate(later) - ToDate(fast);
 
-        // ×4 means 20 game minutes per real second.
-        Assert.InRange(elapsed.TotalMinutes, 12, 30);
+        // ×10 means 10 game minutes per real second.
+        Assert.InRange(elapsed.TotalMinutes, 6, 14);
     }
 
     [Fact]

tests/HSchool.AppHost.Tests/SchoolApiTests.cs

@@ -25,7 +25,7 @@ public class SchoolApiTests(AppHostFixture fixture)
         // Without the "Z" the browser would read the start date in its own time zone and the
         // creation form would offer the wrong hour.
         Assert.Equal(DateTimeKind.Utc, state.DefaultStartDate.Kind);
-        Assert.Equal(5d, state.GameMinutesPerRealSecond);
+        Assert.Equal(1d, state.GameMinutesPerRealSecond);
         Assert.Equal(5, state.SchoolWeekDays);
         Assert.Empty(state.Schools);
     }