t.Error("v0.Value != v1.Value")
		}
		if v0.Value() != value {
			t.Errorf("v0.Value not %#v", value)
		}
		if v0 != v1 {
			t.Error("v0 != v1")
		}

		drainMaps(t)
		checkMapsFor(t, value)
	})
}

// drainMaps ensures that the internal maps are drained.
func drainMaps(t *testing.T) {
	t.Helper()

	wait := make(chan struct{}, 1)