patch 8.1.1524: tests are silently skipped

Problem:    Tests are silently skipped.
Solution:   Throw an exception for skipped tests in more places.

src/testdir/shared.vim

@@ -330,7 +330,7 @@ endfunc
 
 " Get line "lnum" as displayed on the screen.
 " Trailing white space is trimmed.
-func! Screenline(lnum)
+func Screenline(lnum)
   let chars = []
   for c in range(1, winwidth(0))
     call add(chars, nr2char(screenchar(a:lnum, c)))

src/testdir/test_assert.vim

@@ -222,6 +222,25 @@ func Test_override()
   call assert_fails("call test_override('redraw', 'yes')", 'E474')
 endfunc
 
+func Test_mouse_position()
+  let save_mouse = &mouse
+  set mouse=a
+  new
+  call setline(1, ['line one', 'line two'])
+  call assert_equal([0, 1, 1, 0], getpos('.'))
+  call test_setmouse(1, 5)
+  call feedkeys("\<LeftMouse>", "xt")
+  call assert_equal([0, 1, 5, 0], getpos('.'))
+  call test_setmouse(2, 20)
+  call feedkeys("\<LeftMouse>", "xt")
+  call assert_equal([0, 2, 8, 0], getpos('.'))
+  call test_setmouse(5, 1)
+  call feedkeys("\<LeftMouse>", "xt")
+  call assert_equal([0, 2, 1, 0], getpos('.'))
+  bwipe!
+  let &mouse = save_mouse
+endfunc
+
 func Test_user_is_happy()
   smile
   sleep 300m

src/testdir/test_crypt.vim

@@ -1,7 +1,7 @@
 " Tests for encryption.
 
 if !has('cryptv')
-  finish
+  throw 'Skipped, encryption feature missing'
 endif
 
 func Common_head_only(text)

src/testdir/test_cscope.vim

@@ -1,7 +1,10 @@
 " Test for cscope commands.
 
-if !has('cscope') || !executable('cscope') || !has('quickfix')
-  finish
+if !has('cscope') || !has('quickfix')
+  throw 'Skipped, cscope or quickfix feature missing'
+endif
+if !executable('cscope')
+  throw 'Skipped, cscope program missing'
 endif
 
 func CscopeSetupOrClean(setup)

src/testdir/test_digraph.vim

@@ -1,7 +1,7 @@
 " Tests for digraphs
 
 if !has("digraphs")
-  finish
+  throw 'Skipped, digraphs feature missing'
 endif
 
 func Put_Dig(chars)

src/testdir/test_float_func.vim

@@ -1,7 +1,7 @@
 " test float functions
 
 if !has('float')
-  finish
+  throw 'Skipped, float feature missing'
 end
 
 func Test_abs()

src/testdir/test_gui.vim

@@ -2,7 +2,7 @@
 
 source shared.vim
 if !CanRunGui()
-  finish
+  throw 'Skipped, cannot run GUI'
 endif
 
 source setup_gui.vim

src/testdir/test_gui_init.vim

@@ -3,7 +3,7 @@
 
 source shared.vim
 if !CanRunGui()
-  finish
+  throw 'Skipped, cannot run GUI'
 endif
 
 source setup_gui.vim

src/testdir/test_history.vim

@@ -1,7 +1,7 @@
 " Tests for the history functions
 
 if !has('cmdline_hist')
-  finish
+  throw 'Skipped, cmdline_hist feature missing'
 endif
 
 set history=7

src/testdir/test_langmap.vim

@@ -1,7 +1,7 @@
 " tests for 'langmap'
 
 if !has('langmap')
-  finish
+  throw 'Skipped, langmap feature missing'
 endif
 
 func Test_langmap()

src/testdir/test_listlbr.vim

@@ -3,8 +3,11 @@
 set encoding=latin1
 scriptencoding latin1
 
-if !exists("+linebreak") || !has("conceal")
-  finish
+if !exists("+linebreak")
+  throw 'Skipped, linebreak option missing'
+endif
+if !has("conceal")
+  throw 'Skipped, conceal feature missing'
 endif
 
 source view_util.vim

src/testdir/test_listlbr_utf8.vim

@@ -3,8 +3,14 @@
 set encoding=utf-8
 scriptencoding utf-8
 
-if !exists("+linebreak") || !has("conceal") || !has("signs")
-  finish
+if !exists("+linebreak")
+  throw 'Skipped, linebreak option missing'
+endif
+if !has("conceal")
+  throw 'Skipped, conceal feature missing'
+endif
+if !has("signs")
+  throw 'Skipped, signs feature missing'
 endif
 
 source view_util.vim

src/testdir/test_lua.vim

@@ -1,7 +1,7 @@
 " Tests for Lua.
 
 if !has('lua')
-  finish
+  throw 'Skipped, lua feature missing'
 endif
 
 func TearDown()

src/testdir/test_makeencoding.vim

@@ -4,8 +4,7 @@ source shared.vim
 
 let s:python = PythonProg()
 if s:python == ''
-  " Can't run this test.
-  finish
+  throw 'Skipped, python program missing'
 endif
 
 let s:script = 'test_makeencoding.py'

src/testdir/test_matchadd_conceal.vim

@@ -1,6 +1,7 @@
 " Test for matchadd() and conceal feature
+
 if !has('conceal')
-  finish
+  throw 'Skipped, conceal feature missing'
 endif
 
 if !has('gui_running') && has('unix')

src/testdir/test_matchadd_conceal_utf8.vim

@@ -1,6 +1,7 @@
 " Test for matchadd() and conceal feature using utf-8.
+
 if !has('conceal')
-  finish
+  throw 'Skipped, conceal feature missing'
 endif
 
 if !has('gui_running') && has('unix')

src/testdir/test_memory_usage.vim

@@ -1,9 +1,15 @@
 " Tests for memory usage.
 
-if !has('terminal') || has('gui_running') || $ASAN_OPTIONS !=# ''
+if !has('terminal')
+  throw 'Skipped, terminal feature missing'
+endif
+if has('gui_running')
+  throw 'Skipped, does not work in GUI'
+endif
+if $ASAN_OPTIONS !=# ''
   " Skip tests on Travis CI ASAN build because it's difficult to estimate
   " memory usage.
-  finish
+  throw 'Skipped, does not work with ASAN'
 endif
 
 source shared.vim
@@ -14,7 +20,7 @@ endfunc
 
 if has('win32')
   if !executable('wmic')
-    finish
+    throw 'Skipped, wmic program missing'
   endif
   func s:memory_usage(pid) abort
     let cmd = printf('wmic process where processid=%d get WorkingSetSize', a:pid)
@@ -22,13 +28,13 @@ if has('win32')
   endfunc
 elseif has('unix')
   if !executable('ps')
-    finish
+    throw 'Skipped, ps program missing'
   endif
   func s:memory_usage(pid) abort
     return s:pick_nr(system('ps -o rss= -p ' . a:pid))
   endfunc
 else
-  finish
+  throw 'Skipped, not win32 or unix'
 endif
 
 " Wait for memory usage to level off.

src/testdir/test_menu.vim

@@ -1,7 +1,7 @@
 " Test that the system menu can be loaded.
 
 if !has('menu')
-  finish
+  throw 'Skipped, menu feature missing'
 endif
 
 func Test_load_menu()

src/testdir/test_mksession.vim

@@ -4,7 +4,7 @@ set encoding=latin1
 scriptencoding latin1
 
 if !has('mksession')
-  finish
+  throw 'Skipped, mksession feature missing'
 endif
 
 source shared.vim

src/testdir/test_mksession_utf8.vim

@@ -4,7 +4,7 @@ set encoding=utf-8
 scriptencoding utf-8
 
 if !has('mksession')
-  finish
+  throw 'Skipped, mksession feature missing'
 endif
 
 func Test_mksession_utf8()

src/testdir/test_netbeans.vim

@@ -1,15 +1,14 @@
 " Test the netbeans interface.
 
 if !has('netbeans_intg')
-  finish
+  throw 'Skipped, netbeans_intg feature missing'
 endif
 
 source shared.vim
 
 let s:python = PythonProg()
 if s:python == ''
-  " Can't run this test.
-  finish
+  throw 'Skipped, python program missing'
 endif
 
 " Run "testfunc" after sarting the server and stop the server afterwards.

src/testdir/test_paste.vim

@@ -1,8 +1,11 @@
 " Tests for bracketed paste and other forms of pasting.
 
 " Bracketed paste only works with "xterm".  Not in GUI or Windows console.
-if has('gui_running') || has('win32')
-  finish
+if has('win32')
+  throw 'Skipped, does not work on MS-Windows'
+endif
+if has('gui_running')
+  throw 'Skipped, does not work in the GUI'
 endif
 set term=xterm
 
@@ -122,7 +125,6 @@ func Test_xrestore()
   if !has('xterm_clipboard')
     return
   endif
-call ch_logfile('logfile', 'w')
   let display = $DISPLAY
   new
   call CheckCopyPaste()
@@ -133,6 +135,5 @@ call ch_logfile('logfile', 'w')
   exe "xrestore " .. display
   call CheckCopyPaste()
 
-call ch_logfile('', '')
   bwipe!
 endfunc

src/testdir/test_perl.vim

@@ -1,7 +1,7 @@
 " Tests for Perl interface
 
 if !has('perl')
-  finish
+  throw 'Skipped, perl feature missing'
 end
 
 " FIXME: RunTest don't see any error when Perl abort...

src/testdir/test_profile.vim

@@ -1,6 +1,7 @@
 " Test Vim profiler
+
 if !has('profile')
-  finish
+  throw 'Skipped, profile feature missing'
 endif
 
 func Test_profile_func()

src/testdir/test_prompt_buffer.vim

@@ -1,7 +1,7 @@
 " Tests for setting 'buftype' to "prompt"
 
 if !has('channel')
-  finish
+  throw 'Skipped, channel feature missing'
 endif
 
 source shared.vim

src/testdir/test_python2.vim

@@ -2,7 +2,7 @@
 " TODO: move tests from test87.in here.
 
 if !has('python')
-  finish
+  throw 'Skipped, python feature missing'
 endif
 
 func Test_pydo()

src/testdir/test_python3.vim

@@ -2,7 +2,7 @@
 " TODO: move tests from test88.in here.
 
 if !has('python3')
-  finish
+  throw 'Skipped, python3 feature missing'
 endif
 
 func Test_py3do()

src/testdir/test_pyx2.vim

@@ -2,7 +2,7 @@
 
 set pyx=2
 if !has('python')
-  finish
+  throw 'Skipped, python feature missing'
 endif
 
 let s:py2pattern = '^2\.[0-7]\.\d\+'

src/testdir/test_pyx3.vim

@@ -2,7 +2,7 @@
 
 set pyx=3
 if !has('python3')
-  finish
+  throw 'Skipped, python3 feature missing'
 endif
 
 let s:py2pattern = '^2\.[0-7]\.\d\+'

src/testdir/test_quickfix.vim

@@ -1,7 +1,7 @@
 " Test for the quickfix feature.
 
 if !has('quickfix')
-  finish
+  throw 'Skipped, quickfix feature missing'
 endif
 
 set encoding=utf-8

src/testdir/test_quotestar.vim

@@ -2,7 +2,7 @@
 
 source shared.vim
 if !WorkingClipboard()
-  finish
+  throw 'Skipped, no working clipboard'
 endif
 
 source shared.vim

src/testdir/test_reltime.vim

@@ -1,7 +1,10 @@
 " Tests for reltime()
 
-if !has('reltime') || !has('float')
-  finish
+if !has('reltime')
+  throw 'Skipped, reltime feature missing'
+endif
+if !has('float')
+  throw 'Skipped, float feature missing'
 endif
 
 func Test_reltime()

src/testdir/test_ruby.vim

@@ -1,7 +1,7 @@
 " Tests for ruby interface
 
 if !has('ruby')
-  finish
+  throw 'Skipped, ruby feature missing'
 end
 
 func Test_ruby_change_buffer()

src/testdir/test_sha256.vim

@@ -1,7 +1,10 @@
 " Tests for the sha256() function.
 
-if !has('cryptv') || !exists('*sha256')
-  finish
+if !has('cryptv')
+  throw 'Skipped, cryptv feature missing'
+endif
+if !exists('*sha256')
+  throw 'Skipped, sha256 function missing'
 endif
 
 function Test_sha256()

src/testdir/test_shortpathname.vim

@@ -2,7 +2,7 @@
 " Only for use on Win32 systems!
 
 if !has('win32')
-  finish
+  throw 'Skipped, not on MS-Windows'
 endif
 
 func TestIt(file, bits, expected)

src/testdir/test_signals.vim

@@ -1,7 +1,7 @@
 " Test signal handling.
 
 if !has('unix')
-  finish
+  throw 'Skipped, not on Unix'
 endif
 
 source shared.vim

src/testdir/test_signs.vim

@@ -1,7 +1,7 @@
 " Test for signs
 
 if !has('signs')
-  finish
+  throw 'Skipped, signs feature missing'
 endif
 
 func Test_sign()

src/testdir/test_spell.vim

@@ -1,7 +1,7 @@
 " Test spell checking
 
 if !has('spell')
-  finish
+  throw 'Skipped, spell feature missing'
 endif
 
 func TearDown()

src/testdir/test_syntax.vim

@@ -1,7 +1,7 @@
 " Test for syntax and syntax iskeyword option
 
 if !has("syntax")
-  finish
+  throw 'Skipped, syntax feature missing'
 endif
 
 source view_util.vim

src/testdir/test_tcl.vim

@@ -1,7 +1,7 @@
 " Tests for the Tcl interface.
 
 if !has('tcl')
-  finish
+  throw 'Skipped, tcl feature missing'
 end
 
 " Helper function as there is no builtin tcleval() function similar

src/testdir/test_termcodes.vim

@@ -1,8 +1,11 @@
 " Tests for decoding escape sequences sent by the terminal.
 
 " This only works for Unix in a terminal
-if has('gui_running') || !has('unix')
-  finish
+if has('gui_running')
+  throw 'Skipped, does not work in the GUI'
+endif
+if !has('unix')
+  throw 'Skipped, not on Unix'
 endif
 
 source shared.vim

src/testdir/test_terminal.vim

@@ -1,7 +1,7 @@
 " Tests for the terminal window.
 
 if !has('terminal')
-  finish
+  throw 'Skipped, terminal feature missing'
 endif
 
 source shared.vim

src/testdir/test_terminal_fail.vim

@@ -3,7 +3,7 @@
 " freed.  Since the process exists right away it's not a real leak.
 
 if !has('terminal')
-  finish
+  throw 'Skipped, terminal feature missing'
 endif
 
 source shared.vim

src/testdir/test_textobjects.vim

@@ -1,7 +1,7 @@
 " Test for textobjects
 
 if !has('textobjects')
-  finish
+  throw 'Skipped, textobjects feature missing'
 endif
 
 func CpoM(line, useM, expected)

src/testdir/test_textprop.vim

@@ -2,7 +2,7 @@
 " buffer.
 
 if !has('textprop')
-  finish
+  throw 'Skipped, textprop feature missing'
 endif
 
 source screendump.vim

src/testdir/test_timers.vim

@@ -1,7 +1,7 @@
 " Test for timers
 
 if !has('timers')
-  finish
+  throw 'Skipped, timers feature missing'
 endif
 
 source shared.vim

src/testdir/test_vartabs.vim

@@ -1,7 +1,7 @@
 " Test for variable tabstops
 
 if !has("vartabs")
-  finish
+  throw 'Skipped, vartabs feature missing'
 endif
 
 source view_util.vim

src/testdir/test_winbar.vim

@@ -1,7 +1,7 @@
 " Test WinBar
 
 if !has('menu')
-  finish
+  throw 'Skipped, menu feature missing'
 endif
 
 source shared.vim

src/testdir/test_windows_home.vim

@@ -1,7 +1,7 @@
 " Test for $HOME on Windows.
 
 if !has('win32')
-  finish
+  throw 'Skipped, not on MS-Windows'
 endif
 
 let s:env = {}

src/testdir/test_xxd.vim

@@ -2,7 +2,7 @@
 if empty($XXD) && executable('..\xxd\xxd.exe')
   let s:xxd_cmd = '..\xxd\xxd.exe'
 elseif empty($XXD) || !executable($XXD)
-  finish
+  throw 'Skipped, xxd program missing'
 else
   let s:xxd_cmd = $XXD
 endif

src/version.c

@@ -777,6 +777,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1524,
 /**/
     1523,
 /**/