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65fb622000
Hope this will make people using feed_command less likely: this hides bugs. Already found at least two: 1. msgpackparse() will show internal error: hash_add() in case of duplicate keys, though it will still work correctly. Currently silenced. 2. ttimeoutlen was spelled incorrectly, resulting in option not being set when expected. Test was still functioning somehow though. Currently fixed.
62 lines
1.6 KiB
Lua
62 lines
1.6 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local clear = helpers.clear
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local command = helpers.command
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local expect = helpers.expect
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local feed = helpers.feed
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local insert = helpers.insert
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describe('u CTRL-R g- g+', function()
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before_each(clear)
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local function create_history(num_steps)
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if num_steps == 0 then return end
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insert('1')
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if num_steps == 1 then return end
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feed('o2<esc>')
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feed('o3<esc>')
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feed('u')
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if num_steps == 2 then return end
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feed('o4<esc>')
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if num_steps == 3 then return end
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feed('u')
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end
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local function undo_and_redo(hist_pos, undo, redo, expect_str)
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command('enew!')
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create_history(hist_pos)
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local cur_contents = helpers.curbuf_contents()
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feed(undo)
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expect(expect_str)
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feed(redo)
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expect(cur_contents)
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end
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-- TODO Look for message saying 'Already at oldest change'
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it('does nothing when no changes have happened', function()
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undo_and_redo(0, 'u', '<C-r>', '')
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undo_and_redo(0, 'g-', 'g+', '')
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end)
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it('undoes a change when at a leaf', function()
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undo_and_redo(1, 'u', '<C-r>', '')
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undo_and_redo(1, 'g-', 'g+', '')
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end)
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it('undoes a change when in a non-leaf', function()
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undo_and_redo(2, 'u', '<C-r>', '1')
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undo_and_redo(2, 'g-', 'g+', '1')
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end)
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it('undoes properly around a branch point', function()
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undo_and_redo(3, 'u', '<C-r>', [[
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1
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2]])
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undo_and_redo(3, 'g-', 'g+', [[
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1
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2
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3]])
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end)
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it('can find the previous sequence after undoing to a branch', function()
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undo_and_redo(4, 'u', '<C-r>', '1')
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undo_and_redo(4, 'g-', 'g+', '1')
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end)
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end)
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