.

wcfs/δbtail_test.go

@@ -795,7 +795,11 @@ func TestΔBTail(t *testing.T) {
 		// _unchanged_ even though B under it is modified; right arm is
 		// added to tracking set because 2 migrates there.
 		"T/T/B1:a,2:b",
-		"T2/T-T/B1:a-B2:b,3:c",
+		Δ("T2/T-T/B1:a-B2:b,3:c",
+			A{1:  K(1,2,3),   // XXX correct?
+			  2:  K(1,2,3),
+			  3:  K(1,2,3),
+			  oo: K(1,2,3)}), // XXX correct?
 
 		// depth=2; like prev. case, but additional right arm with +4
 		// +5 is added which remain not tracked (TODO verify)