.

wcfs/δbtail_test.go

@@ -362,15 +362,18 @@ func TestΔBTail(t *testing.T) {
 
 	at1 := tg.head
 	kv1 := XGetTree(db, at1, tg.treeRoot)
-	for _, tree := range testv {
-		δZ := XCommitTree(tree) // tree2
+	tree1 := "ø" // initial
+	for _, tree2 := range testv {
+		δZ := XCommitTree(tree2)
 		at2 := δZ.Tid
 		kv2 := XGetTree(db, at2, tg.treeRoot)
 
+		fmt.Printf("%s -> %s\n", tree1, tree2) // XXX -> subtest?
 		xverifyΔBTail(t, db, tg.treeRoot, at1,at2, kv1,kv2, δZ)
 
 		at1 = at2
 		kv1 = kv2
+		tree1 = tree2
 	}
 
 	// TODO reverse tree_i <- tree_{i+1}