jumplist: avoid extra tail entry #9805

fixes #9775

1 files changed, 48 insertions, 0 deletions

diff --git a/test/functional/normal/jump_spec.lua b/test/functional/normal/jump_spec.lua
new file mode 100644
index 0000000000..5bed541752
--- /dev/null
+++ b/test/functional/normal/jump_spec.lua
@@ -0,0 +1,48 @@
+local helpers = require('test.functional.helpers')(after_each)
+
+local clear = helpers.clear
+local command = helpers.command
+local eq = helpers.eq
+local funcs = helpers.funcs
+local feed = helpers.feed
+local write_file = helpers.write_file
+
+describe('jumplist', function()
+  local fname1 = 'Xtest-functional-normal-jump'
+  local fname2 = fname1..'2'
+  before_each(clear)
+  after_each(function()
+    os.remove(fname1)
+    os.remove(fname2)
+  end)
+
+  it('does not add a new entry on startup', function()
+    eq('\n jump line  col file/text\n>', funcs.execute('jumps'))
+  end)
+
+  it('does not require two <C-O> strokes to jump back', function()
+    write_file(fname1, 'first file contents')
+    write_file(fname2, 'second file contents')
+
+    command('args '..fname1..' '..fname2)
+    local buf1 = funcs.bufnr(fname1)
+    local buf2 = funcs.bufnr(fname2)
+
+    command('next')
+    feed('<C-O>')
+    eq(buf1, funcs.bufnr('%'))
+
+    command('first')
+    command('snext')
+    feed('<C-O>')
+    eq(buf1, funcs.bufnr('%'))
+    feed('<C-I>')
+    eq(buf2, funcs.bufnr('%'))
+    feed('<C-O>')
+    eq(buf1, funcs.bufnr('%'))
+
+    command('drop '..fname2)
+    feed('<C-O>')
+    eq(buf1, funcs.bufnr('%'))
+  end)
+end)