patch 8.0.0262: Farsi support is barely tested

Problem:    Farsi support is barely tested.
Solution:   Add more tests for Farsi.  Clean up the code.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/testdir/test_farsi.vim b/src/testdir/test_farsi.vim
index 81afce27f..9c165d7fb 100644
--- a/src/testdir/test_farsi.vim
+++ b/src/testdir/test_farsi.vim
@@ -1,4 +1,5 @@
 " Simplistic testing of Farsi mode.
+" Note: must be edited with latin1 encoding.
 
 if !has('farsi')
   finish
@@ -82,3 +83,21 @@ func Test_farsi_map()
   set noaltkeymap
   bwipe!
 endfunc
+
+func Test_input_farsi()
+  new
+  setlocal rightleft fkmap
+  " numbers switch input direction
+  call feedkeys("aabc0123456789.+-^%#=xyz\<Esc>", 'tx')
+  call assert_equal("\x8cÌν®¥ª­«¦¹¸·¶µ´³²±°Ô\x93Õ", getline('.'))
+
+  " all non-number special chars
+  call feedkeys("aB E F H I K L M O P Q R T U W Y ` !  @ # $ % ^ & * () - _ = + \\ | : \" .  / < > ? \<Esc>", 'tx')
+  call assert_equal("\x8cÌν®¥ª­«¦¹¸·¶µ´³²±°Ô\x93Õ¡ ô ú À ö æ ç Â [ ] ÷ ó ò ð õ ñ ¢ £  § ® ¤ ¥ ª ¬ è ¨© ­ é ½ « ë ê º » ¦  ¯ ¾ ¼ ¿ ", getline('.'))
+
+  " all letter chars
+  call feedkeys("aa A b c C d D e f g G h i j J k l m n N o p q r s S t u v V w x X y z Z ; \ , [ ] \<Esc>", 'tx')
+  call assert_equal("\x8cÌν®¥ª­«¦¹¸·¶µ´³²±°Ô\x93Õ¡ ô ú À ö æ ç Â [ ] ÷ ó ò ð õ ñ ¢ £  § ® ¤ ¥ ª ¬ è ¨© ­ é ½ « ë ê º » ¦  ¯ ¾ ¼ ¿ Ñ ù Ì Î Ï á þ Æ Ã Ü ø Á à Å ü Þ Ý Ä Ë Ë Ê É Ó Ù Ð û Ø Ö Í Í Ò Ô Ô × Õ ý Ú  ß Ç È ", getline('.'))
+
+  bwipe!
+endfunc