Fix: Folding by 'syntax' does nothing with Markdown syntax (Issue #1009)

test/fold.vader

@@ -0,0 +1,59 @@
+# Fold
+
+Execute (Save state):
+  Log 'Previous foldmethod: ' . &foldmethod
+  let save_foldmethod = &foldmethod
+
+Given vimwiki (Markdown Headers):
+  Some stuff          1
+  # Header level 1    2
+  ## Header level 2   3
+    Content           4
+  ### Header level 3  5
+  # Header level 1    6
+    Content           7
+  ## Just to end      8: Vader cannot match end-of-file
+
+Execute (Markdown and Fold Syntax):
+  call SetSyntax('markdown')
+  set foldmethod=syntax
+
+Execute (Assert Markdown: Fold Syntax):
+  Log 'Supposing it starts at foldlevel 0'
+  AssertEqual 'line 1:0', 'line 1:' . foldlevel(1) 
+  AssertEqual 'line 2:0', 'line 2:' . foldlevel(2) 
+  AssertEqual 'line 3:1', 'line 3:' . foldlevel(3) 
+  AssertEqual 'line 4:2', 'line 4:' . foldlevel(4) 
+  AssertEqual 'line 5:2', 'line 5:' . foldlevel(5) 
+  AssertEqual 'line 6:0', 'line 6:' . foldlevel(6) 
+  AssertEqual 'line 7:0', 'line 7:' . foldlevel(7) 
+
+
+Given vimwiki (Wiki Headers):
+  Some stuff          1
+  = Header level 1    2 =
+  == Header level 2   3 ==
+    Content           4
+  === Header level 3  5 ===
+  = Header level 1    6 =
+    Content           7
+  == Just to end      8 ==
+
+Execute (Markdown and Fold Syntax):
+  call SetSyntax('default')
+  set foldmethod=syntax
+
+Execute (Assert Markdown: Fold Syntax):
+  Log 'Supposing it starts at foldlevel 0'
+  AssertEqual 'line 1:0', 'line 1:' . foldlevel(1) 
+  AssertEqual 'line 2:0', 'line 2:' . foldlevel(2) 
+  AssertEqual 'line 3:1', 'line 3:' . foldlevel(3) 
+  AssertEqual 'line 4:2', 'line 4:' . foldlevel(4) 
+  AssertEqual 'line 5:2', 'line 5:' . foldlevel(5) 
+  AssertEqual 'line 6:0', 'line 6:' . foldlevel(6) 
+  AssertEqual 'line 7:0', 'line 7:' . foldlevel(7) 
+
+Execute (Restore state):
+  let &foldmethod = save_foldmethod
+  Log 'Next foldmethod: ' . &foldmethod
+

test/list_return.vader

@@ -2,8 +2,15 @@
 # 
 # Note: some trailing spaces are necessary at the end of list items like `1.`
 #       better read this file with `set list`
+#
+# Warning: Foldmethod dependant (and foldlevel ...)
 
 
+Execute (Save State):
+  let msg = 'Error: foldmethod must be manual for theses tests to work,'
+  let msg .= ' it is the default, so please restore it in the test that changed it'
+  AssertEqual &foldmethod, 'manual', msg
+
 Given vimwiki (List Blockquote (Issue #55) {{{2):
   1. Outer Item 1
       1. Inner Item 1

test/syntax.vader

@@ -467,7 +467,7 @@ Given vimwiki (Wiki Headers):
 Execute (Set syntax default):
   call SetSyntax('default')
 
-Execute (Assert Syntax Header):
+Execute (Assert Wiki Syntax Header):
   AssertEqual 'VimwikiHeader1', SyntaxAt(1, 10)
   AssertEqual 'VimwikiHeader2', SyntaxAt(2, 10)
   AssertEqual 'VimwikiHeader3', SyntaxAt(3, 10)
@@ -486,7 +486,10 @@ Given vimwiki (Markdown Headers):
 Execute (Set syntax markdown):
   call SetSyntax('markdown')
 
-Execute (Assert Syntax Header):
+Execute (Assert Markdown Syntax Header):
+  Log "Syntax of first heading: " . string(GetSyntaxStack())
+  Log "Regex of rxListWithoutCb: " . vimwiki#vars#get_wikilocal('rxListItemWithoutCB')
+  Log "Bullet types: " . string(vimwiki#vars#get_wikilocal('bullet_types'))
   AssertEqual 'VimwikiHeader1' , SyntaxAt(1, 10)
   AssertEqual 'VimwikiHeader2' , SyntaxAt(2, 10)
   AssertEqual 'VimwikiHeader3' , SyntaxAt(3, 10)

test/vimrc

@@ -89,21 +89,30 @@
 " Define functions
   " Change the syntax using a temporary wiki
   function! SetSyntax(vw_syn)
+    " Change extension and wiki_nr
+    let index=0
     if a:vw_syn ==# 'default'
       let ext = 'wiki'
+      let index=0
     elseif a:vw_syn ==# 'markdown'
       let ext = 'md'
+      let index=1
     elseif a:vw_syn ==# 'media'
       let ext = 'mw'
+      let index=2
     else
       Log 'ERROR: Invalid syntax "' . a:vw_syn . '" in SetSyntax()'
       Log 'NOTE: function only accepts "media" for setting mediawiki syntax'
       return
     endif
+
+    " Change temporary wiki
     let path = expand('%:p:h')
-    let new_temp_wiki_settings = {'path': path,
+    let new_temp_wiki_settings = {
+          \ 'path': path,
           \ 'ext': ext,
           \ 'syntax': a:vw_syn,
+          \ 'bullet_types': g:vimwiki_wikilocal_vars[index]['bullet_types'],
           \ }
 
     " Remove any temporary wikis each time this function is called.
@@ -306,6 +315,14 @@
     return synIDattr(synIDtrans(l:s), 'name')
   endfun
 
+  " Debug helper
+  function! GetSyntaxStack()
+    if !exists('*synstack')
+      return
+    endif
+    return map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")')
+  endfunc
+
   " Run Assert only if vim version higth enough
   function! AssertIfVersion(version, one, two)
     if v:version < a:version | return | endif