1 files changed, 97 insertions, 0 deletions
diff --git a/test/functional/ex_cmds/oldfiles_spec.lua b/test/functional/ex_cmds/oldfiles_spec.lua
new file mode 100644
index 0000000000..e02f42cd12
--- /dev/null
+++ b/test/functional/ex_cmds/oldfiles_spec.lua
@@ -0,0 +1,97 @@
+local Screen = require('test.functional.ui.screen')
+local helpers = require('test.functional.helpers')
+
+local buf, eq, execute = helpers.curbufmeths, helpers.eq, helpers.execute
+local feed, nvim, nvim_prog = helpers.feed, helpers.nvim, helpers.nvim_prog
+local ok, set_session, spawn = helpers.ok, helpers.set_session, helpers.spawn
+
+local shada_file = 'test.shada'
+
+--
+-- helpers.clear() uses "-i NONE", which is not useful for this test.
+--
+local function _clear()
+  if session then
+    session:exit(0)
+  end
+  set_session(spawn({nvim_prog,
+                     '-u', 'NONE',
+                     '--cmd', 'set noswapfile undodir=. directory=. viewdir=. backupdir=.',
+                     '--embed'}))
+end
+
+describe(':oldfiles', function()
+  before_each(_clear)
+
+  after_each(function()
+    os.remove(shada_file)
+  end)
+
+  local function add_padding(s)
+    return s .. string.rep(' ', 96 - string.len(s))
+  end
+
+  it('shows most recently used files', function()
+    screen = Screen.new(100, 5)
+    screen:attach()
+    execute('edit testfile1')
+    execute('edit testfile2')
+    execute('wshada ' .. shada_file)
+    execute('rshada! ' .. shada_file)
+    local oldfiles = helpers.meths.get_vvar('oldfiles')
+    execute('oldfiles')
+    screen:expect([[
+      testfile2                                                                                           |
+      1: ]].. add_padding(oldfiles[1]) ..[[ |
+      2: ]].. add_padding(oldfiles[2]) ..[[ |
+                                                                                                          |
+      Press ENTER or type command to continue^                                                             |
+    ]])
+  end)
+end)
+
+describe(':oldfiles!', function()
+  local filename
+  local filename2
+  local oldfiles
+
+  before_each(function()
+    _clear()
+    execute('edit testfile1')
+    filename = buf.get_name()
+    execute('edit testfile2')
+    filename2 = buf.get_name()
+    execute('wshada ' .. shada_file)
+    _clear()
+    execute('rshada! ' .. shada_file)
+
+    -- Ensure v:oldfiles isn't busted.  Since things happen so fast,
+    -- the ordering of v:oldfiles is unstable (it uses qsort() under-the-hood).
+    -- Let's verify the contents and the length of v:oldfiles before moving on.
+    oldfiles = helpers.meths.get_vvar('oldfiles')
+    eq(2, #oldfiles)
+    ok(filename == oldfiles[1] or filename == oldfiles[2])
+    ok(filename2 == oldfiles[1] or filename2 == oldfiles[2])
+
+    execute('oldfiles!')
+  end)
+
+  after_each(function()
+    os.remove(shada_file)
+  end)
+
+  it('provides a prompt and edits the chosen file', function()
+    feed('2<cr>')
+    eq(oldfiles[2], buf.get_name())
+  end)
+
+  it('provides a prompt and does nothing on <cr>', function()
+    feed('<cr>')
+    eq('', buf.get_name())
+  end)
+
+  it('provides a prompt and does nothing if choice is out-of-bounds', function()
+    feed('3<cr>')
+    eq('', buf.get_name())
+  end)
+end)