commit 0b2eef24bcbe2c85c90bbde914a1782cbedc5c72
author Bram Moolenaar <Bram@vim.org> Tue Jun 27 15:43:49 2017 +0200
committer Bram Moolenaar <Bram@vim.org> Tue Jun 27 15:43:49 2017 +0200
tree ca5bad4e11f7d26fba39fa2e25256aeb3edba98f
parent 18d90b95c49d9ff1c635dd762864022aab8e71f1

patch 8.0.0682: no test for synIDtrans()

Problem:    No test for synIDtrans().
Solution:   Add a test. (Dominique Pelle, closes #1796)

src/testdir/test_syntax.vim

diff --git a/src/testdir/test_syntax.vim b/src/testdir/test_syntax.vim
index fef6341..33d7203 100644
--- a/src/testdir/test_syntax.vim
+++ b/src/testdir/test_syntax.vim
@@ -418,7 +418,7 @@
   hi Normal ctermbg=15
   call assert_equal('light', &bg)
 
-  " manually-set &bg takes precendence over auto-detection
+  " manually-set &bg takes precedence over auto-detection
   set bg=light
   hi Normal ctermbg=4
   call assert_equal('light', &bg)
@@ -461,7 +461,6 @@
   bwipe!
 endfunc
 
-
 func Test_conceal()
   if !has('conceal')
     return
@@ -497,3 +496,27 @@
   set conceallevel&
   bw!
 endfunc
+
+fun Test_synstack_synIDtrans()
+  new
+  setfiletype c
+  syntax on
+  call setline(1, ' /* A comment with a TODO */')
+
+  call assert_equal([], synstack(1, 1))
+
+  norm f/
+  call assert_equal(['cComment', 'cCommentStart'], map(synstack(line("."), col(".")), 'synIDattr(v:val, "name")'))
+  call assert_equal(['Comment', 'Comment'],        map(synstack(line("."), col(".")), 'synIDattr(synIDtrans(v:val), "name")'))
+
+  norm fA
+  call assert_equal(['cComment'], map(synstack(line("."), col(".")), 'synIDattr(v:val, "name")'))
+  call assert_equal(['Comment'],  map(synstack(line("."), col(".")), 'synIDattr(synIDtrans(v:val), "name")'))
+
+  norm fT
+  call assert_equal(['cComment', 'cTodo'], map(synstack(line("."), col(".")), 'synIDattr(v:val, "name")'))
+  call assert_equal(['Comment', 'Todo'],   map(synstack(line("."), col(".")), 'synIDattr(synIDtrans(v:val), "name")'))
+
+  syn clear
+  bw!
+endfunc