resolve: do not crash on empty mergestate
I managed to get an empty .hg/merge/state file by interrupting a merge
by pressing Control-C. This lead to this error:
TypeError: a2b_hex() argument 1 must be string or read-only buffer,
not None
since localnode is assigned None before the iteration over lines in
the mergestate begins.
#!/bin/sh
"$TESTDIR/hghave" icasefs || exit 80
echo '% test file addition with bad case'
hg init repo1
cd repo1
echo a > a
hg add A
hg st
hg ci -m adda
hg manifest
cd ..
echo '% test case collision on rename (issue 750)'
hg init repo2
cd repo2
echo a > a
hg --debug ci -Am adda
hg mv a A
# 'a' used to be removed under windows
test -f a || echo 'a is missing'
hg st
cd ..
echo '% test case collision between revisions (issue 912)'
hg init repo3
cd repo3
echo a > a
hg ci -Am adda
hg rm a
hg ci -Am removea
echo A > A
# on linux hfs keeps the old case stored, force it
mv a aa
mv aa A
hg ci -Am addA
# Used to fail under case insensitive fs
hg up -C 0
hg up -C
cd ..