# HG changeset patch
# User Sietse Brouwer <sbbrouwer@gmail.com>
# Date 1602704315 -7200
#      Wed Oct 14 21:38:35 2020 +0200
# Node ID f1a08479877c2cb5c8bc5f858c595c96f40a24b3
# Parent  0d3229120aff331970cba4591c1304f7fc59b394
WIP: update: Restore non-head behaviour.

TODO:
- [ ] Understand what that changest d87b actually changed
- [ ] create testcase for non-tip branch head (open branch)
- [ ] create testcase for non-tip branch head (inactive (closed?) branch)
- [ ] maybe this should be a separate '{nonhead}' keyword, rather than keep
  messing with '{update}'?

hg-prompt used to mark the tip commit as '', and non-tip commits as '^'.
Since commit 34c0e34e7fe7, we instead mark all head commits as '', and
non-head commits as '^'.

The test for non-tip head commits was never updated (and must have been
failing all this time). This commit

- fixes the test
- removes a comment that referred to the old behaviour.
- backs out changeset d87bc22b5a2e, which reverted to the old behaviour

diff --git a/prompt.py b/prompt.py
--- a/prompt.py
+++ b/prompt.py
@@ -346,7 +346,7 @@
                 tip = head
                 break
 
-        return _with_groups(m.groups(), '^') if repo[tip].node() != current_rev.node() else ''
+        return _with_groups(m.groups(), '^') if current_rev.children() else ''
 
     if opts.get("angle_brackets"):
         tag_start = r'\<([^><]*?\<)?'
diff --git a/tests/test_update.py b/tests/test_update.py
--- a/tests/test_update.py
+++ b/tests/test_update.py
@@ -71,11 +71,9 @@
     output = prompt(fs='{update}')
     assert output == '^'
     
-    # This test case matches the behavior of Mercurial, but it seems a bit
-    # unintuitive to me.
     hg_update(2)
     output = prompt(fs='{update}')
-    assert output == '^'
+    assert output == ''
     
     hg_update(1)
     output = prompt(fs='{update}')