Mercurial > hg
view tests/test-ctxmanager.py @ 28600:0d6137891114
graphmod: allow for different styles for different edge types
Rather than draw all edges as solid lines, allow for using different styles for
different edge types. For example you could use dotted lines for edges that
do not connect to a parent, and dashed lines when connecting to a grandparent
(implying missing nodes in between).
For example, setting the following configuration:
[ui]
graphstyle.grandparent = :
graphstyle.missing = .
would result in a graph like this:
o changeset: 32:d06dffa21a31
|\ parent: 27:886ed638191b
| : parent: 31:621d83e11f67
| :
o : changeset: 31:621d83e11f67
|\: parent: 21:d42a756af44d
| : parent: 30:6e11cd4b648f
| :
o : changeset: 30:6e11cd4b648f
|\ \ parent: 28:44ecd0b9ae99
| . : parent: 29:cd9bb2be7593
| . :
o . : changeset: 28:44ecd0b9ae99
|\ \ \ parent: 1:6db2ef61d156
| . . : parent: 26:7f25b6c2f0b9
| . . :
o . . : changeset: 26:7f25b6c2f0b9
|\ \ \ \ parent: 18:1aa84d96232a
| | . . : parent: 25:91da8ed57247
| | . . :
| o-----+ changeset: 25:91da8ed57247
| | . . : parent: 21:d42a756af44d
| | . . : parent: 24:a9c19a3d96b7
| | . . :
| o . . : changeset: 24:a9c19a3d96b7
| |\ \ \ \ parent: 0:e6eb3150255d
| | . . . : parent: 23:a01cddf0766d
| | . . . :
| o---+ . : changeset: 23:a01cddf0766d
| | . . . : parent: 1:6db2ef61d156
| | . . . : parent: 22:e0d9cccacb5d
| | . . . :
| o-------+ changeset: 22:e0d9cccacb5d
| . . . . : parent: 18:1aa84d96232a
|/ / / / / parent: 21:d42a756af44d
| . . . :
| . . . o changeset: 21:d42a756af44d
| . . . |\ parent: 19:31ddc2c1573b
| . . . | | parent: 20:d30ed6450e32
| . . . | |
+-+-------o changeset: 20:d30ed6450e32
| . . . | parent: 0:e6eb3150255d
| . . . | parent: 18:1aa84d96232a
| . . . |
| . . . o changeset: 19:31ddc2c1573b
| . . . .\ parent: 15:1dda3f72782d
| . . . . | parent: 17:44765d7c06e0
| . . . . |
o---+---+ | changeset: 18:1aa84d96232a
. . . . | parent: 1:6db2ef61d156
/ / / / / parent: 15:1dda3f72782d
. . . . .
Edge styles can be altered by setting the following one-character config options::
[ui]
graphstyle.parent = |
graphstyle.grandparent = :
graphstyle.missing = .
The default configuration leaves all 3 types set to |, leaving graph styles
unaffected.
This is part of the work towards moving smartlog upstream; currently smartlog
injects extra nodes into the graph to indicate grandparent relationships (nodes
elided).
author | Martijn Pieters <mjpieters@fb.com> |
---|---|
date | Sat, 19 Mar 2016 16:46:15 -0700 |
parents | 4a7dc29bfad8 |
children | 441491aba8c3 |
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from __future__ import absolute_import import silenttestrunner import unittest from mercurial.util import ctxmanager class contextmanager(object): def __init__(self, name, trace): self.name = name self.entered = False self.exited = False self.trace = trace def __enter__(self): self.entered = True self.trace(('enter', self.name)) return self def __exit__(self, exc_type, exc_val, exc_tb): self.exited = exc_type, exc_val, exc_tb self.trace(('exit', self.name)) def __repr__(self): return '<ctx %r>' % self.name class ctxerror(Exception): pass class raise_on_enter(contextmanager): def __enter__(self): self.trace(('raise', self.name)) raise ctxerror(self.name) class raise_on_exit(contextmanager): def __exit__(self, exc_type, exc_val, exc_tb): self.trace(('raise', self.name)) raise ctxerror(self.name) def ctxmgr(name, trace): return lambda: contextmanager(name, trace) class test_ctxmanager(unittest.TestCase): def test_basics(self): trace = [] addtrace = trace.append with ctxmanager(ctxmgr('a', addtrace), ctxmgr('b', addtrace)) as c: a, b = c.enter() c.atexit(addtrace, ('atexit', 'x')) c.atexit(addtrace, ('atexit', 'y')) self.assertEqual(trace, [('enter', 'a'), ('enter', 'b'), ('atexit', 'y'), ('atexit', 'x'), ('exit', 'b'), ('exit', 'a')]) def test_raise_on_enter(self): trace = [] addtrace = trace.append def go(): with ctxmanager(ctxmgr('a', addtrace), lambda: raise_on_enter('b', addtrace)) as c: c.enter() addtrace('unreachable') self.assertRaises(ctxerror, go) self.assertEqual(trace, [('enter', 'a'), ('raise', 'b'), ('exit', 'a')]) def test_raise_on_exit(self): trace = [] addtrace = trace.append def go(): with ctxmanager(ctxmgr('a', addtrace), lambda: raise_on_exit('b', addtrace)) as c: c.enter() addtrace('running') self.assertRaises(ctxerror, go) self.assertEqual(trace, [('enter', 'a'), ('enter', 'b'), 'running', ('raise', 'b'), ('exit', 'a')]) if __name__ == '__main__': silenttestrunner.main(__name__)