diff tests/test-topic-stack-data.t @ 2712:f19b314d8475

topics: add t0 and b0 to the stack

t0 or b0 will be the base of the stack and it's the parent of t1 or b1. The cool
thing about this is that if you update to t0 using `hg up t0` or do `hg prev` on
t1, you will be updated to t0 with the current topic preserved.

This patch adds t0 to stack and implement the preserving topic case for t0 while
using `hg update`.

--- a/tests/test-topic-stack-data.t	Tue Jul 04 00:15:36 2017 +0530
+++ b/tests/test-topic-stack-data.t	Tue Jul 04 01:30:14 2017 +0530
@@ -248,23 +248,23 @@
   t3: bar1_d
   t2: add bar_b
   t1: add bar_a
-    ^ add base_e
+  t0^ add base_e (base)
   $ hg stack baz
   ### topic: baz
   ### branch: default, 2 behind
   t2: add baz_b
   t1: add baz_a
-    ^ add base_c
+  t0^ add base_c (base)
   $ hg stack foo
   ### topic: foo
   ### branch: lake, ambigious rebase destination
   t2@ add foo_b (current)
   t1: add foo_a
-    ^ add lake_a
+  t0^ add lake_a (base)
   $ hg stack fuz
   ### topic: fuz
   ### branch: default, 1 behind
   t3$ add fuz_c (unstable)
   t2$ add fuz_b (unstable)
   t1: fuz1_a
-    ^ add base_d
+  t0^ add base_d (base)