patch 8.1.0760: no proper test for using 'termencoding'
Problem: No proper test for using 'termencoding'.
Solution: Add a screendump test. Fix using double width characters in a
screendump.
diff --git a/src/testdir/test_termencoding.vim b/src/testdir/test_termencoding.vim
new file mode 100644
index 0000000..6192dcf
--- /dev/null
+++ b/src/testdir/test_termencoding.vim
@@ -0,0 +1,37 @@
+" Test for setting 'encoding' to something else than the terminal uses, then
+" setting 'termencoding' to make it work.
+
+" This only works with "iconv".
+if !has('multi_byte') || !has('iconv')
+ finish
+endif
+
+source screendump.vim
+if !CanRunVimInTerminal()
+ finish
+endif
+
+" This Vim is running with 'encoding' "utf-8", the Vim in the terminal is
+" running with 'encoding' "euc-jp". We need to make sure the text is in the
+" right encoding, this is a bit tricky.
+func Test_termencoding_euc_jp()
+ new
+ call setline(1, 'E89: バッファ %ld の変更は保存されていません (! で変更を破棄)')
+ write ++enc=euc-jp Xeuc_jp.txt
+ quit
+
+ call writefile([
+ \ 'set encoding=euc-jp',
+ \ 'set termencoding=utf-8',
+ \ 'scriptencoding utf-8',
+ \ 'exe "normal aE83: バッファを作成できないので、他のを使用します...\<Esc>"',
+ \ 'split Xeuc_jp.txt',
+ \ ], 'XTest_tenc_euc_jp')
+ let buf = RunVimInTerminal('-S XTest_tenc_euc_jp', {'rows': 10})
+ call VerifyScreenDump(buf, 'Test_tenc_euc_jp_01', {})
+
+ " clean up
+ call StopVimInTerminal(buf)
+ call delete('Xeuc_jp.txt')
+ call delete('XTest_tenc_euc_jp')
+endfunc