patch 8.0.0552: toupper and tolower don't work properly for Turkish
Problem: Toupper and tolower don't work properly for Turkish when 'casemap'
is empty. (Bjorn Linse)
Solution: Check the 'casemap' options when deciding how to upper/lower case.
diff --git a/src/testdir/test_normal.vim b/src/testdir/test_normal.vim
index 8fce6e1..149afa9 100644
--- a/src/testdir/test_normal.vim
+++ b/src/testdir/test_normal.vim
@@ -1603,6 +1603,26 @@
norm! V~
call assert_equal('THIS IS A simple test: äüöss', getline('.'))
+ " Turkish ASCII turns to multi-byte.
+ try
+ lang tr_TR.UTF-8
+ set casemap=
+ call setline(1, 'iI')
+ 1normal gUU
+ call assert_equal("\u0130I", getline(1))
+ call assert_equal("\u0130I", toupper("iI"))
+
+ call setline(1, 'iI')
+ 1normal guu
+ call assert_equal("i\u0131", getline(1))
+ call assert_equal("i\u0131", tolower("iI"))
+
+ lang en_US.UTF-8
+ catch /E197:/
+ " can't use Turkish locale
+ throw 'Skipped: Turkish locale not available'
+ endtry
+
" clean up
bw!
endfunc