diff tests/test-topic-stack.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.t	Tue Jul 04 00:15:36 2017 +0530
+++ b/tests/test-topic-stack.t	Tue Jul 04 01:30:14 2017 +0530
@@ -76,7 +76,7 @@
   t3: c_e
   t2: c_d
   t1: c_c
-    ^ c_b
+  t0^ c_b (base)
   $ hg stack -Tjson | python -m json.tool
   [
       {
@@ -118,6 +118,7 @@
       {
           "isentry": false,
           "topic.stack.desc": "c_b",
+          "topic.stack.index": 0,
           "topic.stack.state": [
               "base"
           ],
@@ -180,7 +181,7 @@
   t3$ c_e (unstable)
   t2@ c_d (current)
   t1: c_c
-    ^ c_b
+  t0^ c_b (base)
   $ hg up t3
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg topic --list
@@ -190,7 +191,7 @@
   t3$ c_e (current unstable)
   t2: c_d
   t1: c_c
-    ^ c_b
+  t0^ c_b (base)
   $ hg topic --list --color=debug
   [topic.stack.summary.topic|### topic: [topic.active|foo]]
   [topic.stack.summary.branches|### branch: default]
@@ -198,7 +199,7 @@
   [topic.stack.index topic.stack.index.current topic.stack.index.unstable|t3][topic.stack.state topic.stack.state.current topic.stack.state.unstable|$] [topic.stack.desc topic.stack.desc.current topic.stack.desc.unstable|c_e][topic.stack.state topic.stack.state.current topic.stack.state.unstable| (current unstable)]
   [topic.stack.index topic.stack.index.clean|t2][topic.stack.state topic.stack.state.clean|:] [topic.stack.desc topic.stack.desc.clean|c_d]
   [topic.stack.index topic.stack.index.clean|t1][topic.stack.state topic.stack.state.clean|:] [topic.stack.desc topic.stack.desc.clean|c_c]
-    [topic.stack.state topic.stack.state.base|^] [topic.stack.desc topic.stack.desc.base|c_b]
+  [topic.stack.index topic.stack.index.base|t0][topic.stack.state topic.stack.state.base|^] [topic.stack.desc topic.stack.desc.base|c_b][topic.stack.state topic.stack.state.base| (base)]
   $ hg up t2
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
@@ -281,7 +282,7 @@
   t3: c_g
   t2: c_d
   t1: c_c
-    ^ c_b
+  t0^ c_b (base)
 
 Case with multiple heads on the topic with unstability involved
 ---------------------------------------------------------------
@@ -325,7 +326,7 @@
   t3: c_g
   t2@ c_D (current)
   t1: c_c
-    ^ c_b
+  t0^ c_b (base)
 
 Trying to list non existing topic
   $ hg stack thisdoesnotexist