tests: don't match blank output lines as regexes in unified tests
Currently, the following unified test will pass:
$ echo foo
A blank output line (a line containing just two spaces) will match any
output.
The patch modifies the unified test runner to ignore empty strings
strings when do regular expression matching.
% create and rename on the same file in the same step
a => b
c => d
e => f
initializing destination source-hg repository
scanning source...
sorting...
converting...
1 Initial add: a, c, e
0 rename a into b, create a, rename c into d
o 1 "rename a into b, create a, rename c into d" files: a b c d e f
|
o 0 "Initial add: a, c, e" files: a c e
% manifest
a
b
d
f
% test --rev option
initializing destination source-1-hg repository
scanning source...
sorting...
converting...
0 Initial add: a, c, e
o 0 "Initial add: a, c, e" files: a c e
% test with filemap
initializing destination source-filemap-hg repository
scanning source...
sorting...
converting...
1 Initial add: a, c, e
0 rename a into b, create a, rename c into d
b
d
f
% convert from lightweight checkout
initializing destination source-light-hg repository
warning: lightweight checkouts may cause conversion failures, try with a regular branch instead.
scanning source...
sorting...
converting...
1 Initial add: a, c, e
0 rename a into b, create a, rename c into d
% lightweight manifest
a
b
d
f
% compare timestamps
good: hg timestamps match bzr timestamps
% merge
initializing destination source-hg repository
scanning source...
sorting...
converting...
3 Initial add
2 Editing a
1 Editing b
0 Merged improve branch
o 3 "Merged improve branch" files:
|\
| o 2 "Editing b" files: b
| |
o | 1 "Editing a" files: a
|/
o 0 "Initial add" files: a b
% symlinks and executable files
initializing destination source-hg repository
scanning source...
sorting...
converting...
1 Initial setup
0 Symlink changed, x bits changed
% manifest of 0
644 @ altname
644 d/a
755 * program
644 @ syma
% manifest of tip
644 @ altname
644 d/a
755 * newprog
644 program
644 @ syma
% test the symlinks can be recreated
5 files updated, 0 files merged, 0 files removed, 0 files unresolved
a