1 files changed, 91 insertions, 0 deletions
diff --git a/test/functional/normal/jump_spec.lua b/test/functional/normal/jump_spec.lua
index 5bed541752..9e7158e2f7 100644
--- a/test/functional/normal/jump_spec.lua
+++ b/test/functional/normal/jump_spec.lua
@@ -5,6 +5,7 @@ local command = helpers.command
 local eq = helpers.eq
 local funcs = helpers.funcs
 local feed = helpers.feed
+local redir_exec = helpers.redir_exec
 local write_file = helpers.write_file
 
 describe('jumplist', function()
@@ -46,3 +47,93 @@ describe('jumplist', function()
     eq(buf1, funcs.bufnr('%'))
   end)
 end)
+
+describe("jumpoptions=stack behaves like 'tagstack'", function()
+  before_each(function()
+    clear()
+    feed(':clearjumps<cr>')
+
+    -- Add lines so that we have locations to jump to.
+    for i = 1,101,1
+    do
+        feed('iLine ' .. i .. '<cr><esc>')
+    end
+
+    -- Jump around to add some locations to the jump list.
+    feed('0gg')
+    feed('10gg')
+    feed('20gg')
+    feed('30gg')
+    feed('40gg')
+    feed('50gg')
+
+    feed(':set jumpoptions=stack<cr>')
+  end)
+
+  after_each(function()
+      feed('set jumpoptions=')
+  end)
+
+  it('discards the tail when navigating from the middle', function()
+    feed('<C-O>')
+    feed('<C-O>')
+
+    eq(   '\n'
+       .. ' jump line  col file/text\n'
+       .. '   4   102    0 \n'
+       .. '   3     1    0 Line 1\n'
+       .. '   2    10    0 Line 10\n'
+       .. '   1    20    0 Line 20\n'
+       .. '>  0    30    0 Line 30\n'
+       .. '   1    40    0 Line 40\n'
+       .. '   2    50    0 Line 50',
+       redir_exec('jumps'))
+
+    feed('90gg')
+
+    eq(   '\n'
+       .. ' jump line  col file/text\n'
+       .. '   5   102    0 \n'
+       .. '   4     1    0 Line 1\n'
+       .. '   3    10    0 Line 10\n'
+       .. '   2    20    0 Line 20\n'
+       .. '   1    30    0 Line 30\n'
+       .. '>',
+       redir_exec('jumps'))
+  end)
+
+  it('does not add the same location twice adjacently', function()
+    feed('60gg')
+    feed('60gg')
+
+    eq(   '\n'
+       .. ' jump line  col file/text\n'
+       .. '   7   102    0 \n'
+       .. '   6     1    0 Line 1\n'
+       .. '   5    10    0 Line 10\n'
+       .. '   4    20    0 Line 20\n'
+       .. '   3    30    0 Line 30\n'
+       .. '   2    40    0 Line 40\n'
+       .. '   1    50    0 Line 50\n'
+       .. '>',
+       redir_exec('jumps'))
+  end)
+
+  it('does add the same location twice nonadjacently', function()
+    feed('10gg')
+    feed('20gg')
+
+    eq(   '\n'
+       .. ' jump line  col file/text\n'
+       .. '   8   102    0 \n'
+       .. '   7     1    0 Line 1\n'
+       .. '   6    10    0 Line 10\n'
+       .. '   5    20    0 Line 20\n'
+       .. '   4    30    0 Line 30\n'
+       .. '   3    40    0 Line 40\n'
+       .. '   2    50    0 Line 50\n'
+       .. '   1    10    0 Line 10\n'
+       .. '>',
+       redir_exec('jumps'))
+  end)
+end)