From 66459b7c98c67f8a9d39de8f08e8e8f1fca0e359 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Sat, 6 Aug 2016 19:01:55 +0200
Subject: patch 7.4.2164 Problem:    It is not possible to use plugins in an
 "after" directory to tune             the behavior of a package. Solution:  
 First load plugins from non-after directories, then packages and            
 finally plugins in after directories.             Reset 'loadplugins' before
 executing --cmd arguments.

---
 src/testdir/Makefile         |  4 +++-
 src/testdir/setup.vim        |  3 ++-
 src/testdir/shared.vim       | 21 +++++++++++++++++++
 src/testdir/test_startup.vim | 50 +++++++++++++++++++++++++++++++++++++++++++-
 4 files changed, 75 insertions(+), 3 deletions(-)

(limited to 'src/testdir')

diff --git a/src/testdir/Makefile b/src/testdir/Makefile
index 5c629ed3f7..2153039d56 100644
--- a/src/testdir/Makefile
+++ b/src/testdir/Makefile
@@ -127,4 +127,6 @@ newtestssilent: $(NEW_TESTS)
 
 
 .vim.res:
-	$(RUN_VIMTEST) -u NONE -U NONE -S runtest.vim $*.vim
+	@echo "$(RUN_VIMTEST)" > vimcmd
+	$(RUN_VIMTEST) -U NONE -S runtest.vim $*.vim
+	@rm vimcmd
diff --git a/src/testdir/setup.vim b/src/testdir/setup.vim
index f7e475a81a..dee3de2120 100644
--- a/src/testdir/setup.vim
+++ b/src/testdir/setup.vim
@@ -1,7 +1,8 @@
 " Common preparations for running tests.
 
-" Make sure 'runtimepath' does not include $HOME.
+" Make sure 'runtimepath' and 'packpath' does not include $HOME.
 set rtp=$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after
+let &packpath = &rtp
 
 " Only when the +eval feature is present. 
 if 1
diff --git a/src/testdir/shared.vim b/src/testdir/shared.vim
index b28a26c0ba..d0be24166a 100644
--- a/src/testdir/shared.vim
+++ b/src/testdir/shared.vim
@@ -120,3 +120,24 @@ func WaitFor(expr)
     sleep 10m
   endfor
 endfunc
+
+" Run Vim, using the "vimcmd" file and "-u NORC".
+" "before" is a list of commands to be executed before loading plugins.
+" "after" is a list of commands to be executed after loading plugins.
+" Plugins are not loaded, unless 'loadplugins' is set in "before".
+" Return 1 if Vim could be executed.
+func RunVim(before, after)
+  if !filereadable('vimcmd')
+    return 0
+  endif
+  call writefile(a:before, 'Xbefore.vim')
+  call writefile(a:after, 'Xafter.vim')
+
+  let cmd = readfile('vimcmd')[0]
+  let cmd = substitute(cmd, '-u \f\+', '-u NONE', '')
+  exe "silent !" . cmd . " --cmd 'so Xbefore.vim' -S Xafter.vim"
+
+  call delete('Xbefore.vim')
+  call delete('Xafter.vim')
+  return 1
+endfunc
diff --git a/src/testdir/test_startup.vim b/src/testdir/test_startup.vim
index 0630b2a841..26e7b9f8ee 100644
--- a/src/testdir/test_startup.vim
+++ b/src/testdir/test_startup.vim
@@ -1,8 +1,56 @@
-" Check that loading startup.vim works.
+" Tests for startup.
+
+source shared.vim
 
+" Check that loading startup.vim works.
 func Test_startup_script()
   set compatible
   source $VIMRUNTIME/defaults.vim
 
   call assert_equal(0, &compatible)
 endfunc
+
+" Verify the order in which plugins are loaded:
+" 1. plugins in non-after directories
+" 2. packages
+" 3. plugins in after directories
+func Test_after_comes_later()
+  let before = [
+	\ 'let $HOME = "/does/not/exist"',
+	\ 'set loadplugins',
+	\ 'set rtp=Xhere,Xafter',
+	\ 'set packpath=Xhere,Xafter',
+	\ 'set nomore',
+	\ ]
+  let after = [
+	\ 'redir! > Xtestout',
+	\ 'scriptnames',
+	\ 'redir END',
+	\ 'quit',
+	\ ]
+  call mkdir('Xhere/plugin', 'p')
+  call writefile(['let done = 1'], 'Xhere/plugin/here.vim')
+  call mkdir('Xhere/pack/foo/start/foobar/plugin', 'p')
+  call writefile(['let done = 1'], 'Xhere/pack/foo/start/foobar/plugin/foo.vim')
+
+  call mkdir('Xafter/plugin', 'p')
+  call writefile(['let done = 1'], 'Xafter/plugin/later.vim')
+
+  call RunVim(before, after)
+
+  let lines = readfile('Xtestout')
+  let expected = ['Xbefore.vim', 'here.vim', 'foo.vim', 'later.vim', 'Xafter.vim']
+  let found = []
+  for line in lines
+    for one in expected
+      if line =~ one
+	call add(found, one)
+      endif
+    endfor
+  endfor
+  call assert_equal(expected, found)
+
+  call delete('Xtestout')
+  call delete('Xhere', 'rf')
+  call delete('Xafter', 'rf')
+endfunc
-- 
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