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local helpers = require('test.functional.helpers')(after_each)
local clear = helpers.clear
local insert = helpers.insert
local feed = helpers.feed
local expect = helpers.expect
local execute = helpers.execute
local funcs = helpers.funcs
local foldlevel, foldclosedend = funcs.foldlevel, funcs.foldclosedend
local eq = helpers.eq
describe('Folds', function()
clear()
before_each(function() execute('enew!') end)
it('manual folding adjusts with filter', function()
insert([[
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20]])
execute('4,$fold', '%foldopen', '10,$fold', '%foldopen')
execute('1,8! cat')
feed('5ggzdzMGdd')
expect([[
1
2
3
4
5
6
7
8
9]])
end)
describe('adjusting folds after :move', function()
local function manually_fold_indent()
-- setting foldmethod twice is a trick to get vim to set the folds for me
execute('set foldmethod=indent', 'set foldmethod=manual')
-- Ensure that all folds will get closed (makes it easier to test the
-- length of folds).
execute('set foldminlines=0')
-- Start with all folds open (so :move ranges aren't affected by closed
-- folds).
execute('%foldopen!')
end
local function get_folds()
local rettab = {}
for i = 1, funcs.line('$') do
table.insert(rettab, foldlevel(i))
end
return rettab
end
local function test_move_indent(insert_string, move_command)
-- This test is easy because we just need to ensure that the resulting
-- fold is the same as calculated when creating folds from scratch.
insert(insert_string)
execute(move_command)
local after_move_folds = get_folds()
-- Doesn't change anything, but does call foldUpdateAll()
execute('set foldminlines=0')
eq(after_move_folds, get_folds())
-- Set up the buffer with insert_string for the manual fold testing.
execute('enew!')
insert(insert_string)
manually_fold_indent()
execute(move_command)
end
it('neither closes nor corrupts folds', function()
test_move_indent([[
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a]], '7,12m0')
expect([[
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a]])
-- lines are not closed, folds are correct
for i = 1,funcs.line('$') do
eq(-1, funcs.foldclosed(i))
if i == 1 or i == 7 or i == 13 then
eq(0, foldlevel(i))
elseif i == 4 then
eq(2, foldlevel(i))
else
eq(1, foldlevel(i))
end
end
-- folds are not corrupted
feed('zM')
eq(6, foldclosedend(2))
eq(12, foldclosedend(8))
eq(18, foldclosedend(14))
end)
it("doesn't split a fold when the move is within it", function()
test_move_indent([[
a
a
a
a
a
a
a
a
a
a]], '5m6')
eq({0, 1, 1, 2, 2, 2, 2, 1, 1, 0}, get_folds())
end)
it('truncates folds that end in the moved range', function()
test_move_indent([[
a
a
a
a
a
a
a]], '4,5m6')
eq({0, 1, 2, 0, 0, 0, 0}, get_folds())
end)
it('moves folds that start between moved range and destination', function()
test_move_indent([[
a
a
a
a
a
a
a
a
a
a
a
a
a]], '3,4m$')
eq({0, 1, 1, 0, 0, 1, 2, 1, 0, 0, 1, 0, 0}, get_folds())
end)
it('does not affect folds outside changed lines', function()
test_move_indent([[
a
a
a
a
a
a
a
a
a]], '4m5')
eq({1, 1, 1, 0, 0, 0, 1, 1, 1}, get_folds())
end)
it('moves and truncates folds that start in moved range', function()
test_move_indent([[
a
a
a
a
a
a
a
a
a
a]], '1,3m7')
eq({0, 0, 0, 0, 0, 1, 2, 0, 0, 0}, get_folds())
end)
it('breaks a fold when moving text into it', function()
test_move_indent([[
a
a
a
a
a
a
a]], '$m4')
eq({0, 1, 2, 2, 0, 0, 0}, get_folds())
end)
it('adjusts correctly when moving a range backwards', function()
test_move_indent([[
a
a
a
a
a]], '2,3m0')
eq({1, 2, 0, 0, 0}, get_folds())
end)
end)
end)
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