vim-patch:8.0.1497: getting the jump list requires parsing the output of :jumps

Problem:    Getting the jump list requires parsing the output of :jumps.
Solution:   Add getjumplist(). (Yegappan Lakshmanan, closes vim/vim#2609)
https://github.com/vim/vim/commit/4f50588ba336e7f086a72c53f5688c2494fc34b3

1 files changed, 64 insertions, 0 deletions

diff --git a/src/nvim/testdir/test_jumplist.vim b/src/nvim/testdir/test_jumplist.vim
new file mode 100644
index 0000000000..7079d21aa4
--- /dev/null
+++ b/src/nvim/testdir/test_jumplist.vim
@@ -0,0 +1,64 @@
+" Tests for the jumplist functionality
+
+" Tests for the getjumplist() function
+func Test_getjumplist()
+  if !has("jumplist")
+    return
+  endif
+
+  %bwipe
+  clearjumps
+  call assert_equal([[], 0], getjumplist())
+  call assert_equal([[], 0], getjumplist(1))
+  call assert_equal([[], 0], getjumplist(1, 1))
+
+  call assert_equal([], getjumplist(100))
+  call assert_equal([], getjumplist(1, 100))
+
+  let lines = []
+  for i in range(1, 100)
+    call add(lines, "Line " . i)
+  endfor
+  call writefile(lines, "Xtest")
+
+  " Jump around and create a jump list
+  edit Xtest
+  let bnr = bufnr('%')
+  normal 50%
+  normal G
+  normal gg
+
+  call assert_equal([[
+	      \ {'lnum': 1, 'bufnr': bnr, 'col': 0, 'coladd': 0},
+	      \ {'lnum': 1, 'bufnr': bnr, 'col': 0, 'coladd': 0},
+	      \ {'lnum': 50, 'bufnr': bnr, 'col': 0, 'coladd': 0},
+	      \ {'lnum': 100, 'bufnr': bnr, 'col': 0, 'coladd': 0}], 4],
+	      \ getjumplist())
+
+  " Traverse the jump list and verify the results
+  5
+  exe "normal \<C-O>"
+  call assert_equal(2, getjumplist(1)[1])
+  exe "normal 2\<C-O>"
+  call assert_equal(0, getjumplist(1, 1)[1])
+  exe "normal 3\<C-I>"
+  call assert_equal(3, getjumplist()[1])
+  exe "normal \<C-O>"
+  normal 20%
+  call assert_equal([[
+	      \ {'lnum': 1, 'bufnr': bnr, 'col': 0, 'coladd': 0},
+	      \ {'lnum': 50, 'bufnr': bnr, 'col': 0, 'coladd': 0},
+	      \ {'lnum': 100, 'bufnr': bnr, 'col': 0, 'coladd': 0},
+	      \ {'lnum': 5, 'bufnr': bnr, 'col': 0, 'coladd': 0},
+	      \ {'lnum': 100, 'bufnr': bnr, 'col': 0, 'coladd': 0}], 5],
+	      \ getjumplist())
+
+  let l = getjumplist()
+  call test_garbagecollect_now()
+  call assert_equal(5, l[1])
+  clearjumps
+  call test_garbagecollect_now()
+  call assert_equal(5, l[1])
+
+  call delete("Xtest")
+endfunc