From acc06b0b7b99925d7567d2e79c2f5e88434edae8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Linse?= <bjorn.linse@gmail.com>
Date: Sun, 9 Apr 2017 09:40:12 +0200
Subject: [PATCH] vim-patch:8.0.0552

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.

https://github.com/vim/vim/commit/3317d5ebbe8304da82b8088446060afcae0012af

vim-patch:8.0.0553

Problem:    Toupper/tolower test with Turkish locale fails on Mac.
Solution:   Skip the test on Mac.

https://github.com/vim/vim/commit/9f4de1f5435b900e43e19766da1a5bed4686cf44

vim-patch:8.0.0554

Problem:    Toupper and tolower don't work properly for Turkish when 'casemap'
            contains "keepascii". (Bjorn Linse)
Solution:   When 'casemap' contains "keepascii" use ASCII toupper/tolower.

https://github.com/vim/vim/commit/1cc482069a3407132aeb43a55d6dc284153e79c7

vim-patch:8.0.0555

Problem:    Toupper/tolower test fails on OSX without Darwin.
Solution:   Skip that part of the test also for OSX. (Kazunobu Kuriyama)

https://github.com/vim/vim/commit/d2381a2cadb9ef359ad5efb916734c635b29bd13
---
 src/nvim/testdir/test_normal.vim | 34 ++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/src/nvim/testdir/test_normal.vim b/src/nvim/testdir/test_normal.vim
index a22dca35cc..c529971528 100644
--- a/src/nvim/testdir/test_normal.vim
+++ b/src/nvim/testdir/test_normal.vim
@@ -1606,6 +1606,40 @@ fun! Test_normal30_changecase()
   norm! V~
   call assert_equal('THIS IS A simple test: äüöss', getline('.'))
 
+  " Turkish ASCII turns to multi-byte.  On Mac the Turkish locale is available
+  " but toupper()/tolower() don't do the right thing.
+  if !has('mac') && !has('osx')
+    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"))
+
+      set casemap&
+      call setline(1, 'iI')
+      1normal gUU
+      call assert_equal("II", getline(1))
+      call assert_equal("II", toupper("iI"))
+
+      call setline(1, 'iI')
+      1normal guu
+      call assert_equal("ii", getline(1))
+      call assert_equal("ii", tolower("iI"))
+
+      lang en_US.UTF-8
+    catch /E197:/
+      " can't use Turkish locale
+      throw 'Skipped: Turkish locale not available'
+    endtry
+  endif
+
   " clean up
   bw!
 endfunc