--- a/tests/test-diff-unified.t Sun Feb 25 11:20:35 2018 +0900
+++ b/tests/test-diff-unified.t Fri Feb 23 23:09:58 2018 +0900
@@ -386,3 +386,73 @@
}
$ cd ..
+
+Long function names should be abbreviated, but multi-byte character shouldn't
+be broken up
+
+ $ hg init longfunc
+ $ cd longfunc
+
+ >>> with open('a', 'wb') as f:
+ ... f.write(b'a' * 39 + b'bb' + b'\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b' 0 b\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b'a' * 39 + b'\xc3\xa0' + b'\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b' 0 a with grave (single code point)\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b'a' * 39 + b'a\xcc\x80' + b'\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b' 0 a with grave (composition)\n')
+ ... f.write(b' .\n' * 3)
+ $ hg ci -qAm0
+
+ >>> with open('a', 'wb') as f:
+ ... f.write(b'a' * 39 + b'bb' + b'\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b' 1 b\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b'a' * 39 + b'\xc3\xa0' + b'\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b' 1 a with grave (single code point)\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b'a' * 39 + b'a\xcc\x80' + b'\n')
+ ... f.write(b' .\n' * 3)
+ ... f.write(b' 1 a with grave (composition)\n')
+ ... f.write(b' .\n' * 3)
+ $ hg ci -m1
+
+ $ hg diff -c1 --nodates --show-function
+ diff -r 3e92dd6fa812 -r a256341606cb a
+ --- a/a
+ +++ b/a
+ @@ -2,7 +2,7 @@ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab
+ .
+ .
+ .
+ - 0 b
+ + 1 b
+ .
+ .
+ .
+ @@ -10,7 +10,7 @@ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\xc3\xa0 (esc)
+ .
+ .
+ .
+ - 0 a with grave (single code point)
+ + 1 a with grave (single code point)
+ .
+ .
+ .
+ @@ -18,7 +18,7 @@ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\xcc\x80 (esc)
+ .
+ .
+ .
+ - 0 a with grave (composition)
+ + 1 a with grave (composition)
+ .
+ .
+ .
+
+ $ cd ..