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	In Nvim, like DirChanged, this also triggers when switching windows.
This marks Vim patch 8.2.4335 as ported.
vim-patch:8.2.4335: no autocommand event triggered before changing directory
Problem:    No autocommand event triggered before changing directory. (Ronnie
            Magatti)
Solution:   Add DirChangedPre. (closes vim/vim#9721)
28e8f73ae2
		
	
		
			
				
	
	
		
			351 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Lua
		
	
	
	
	
	
			
		
		
	
	
			351 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Lua
		
	
	
	
	
	
local lfs = require('lfs')
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local h = require('test.functional.helpers')(after_each)
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local clear = h.clear
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local command = h.command
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local eq = h.eq
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local eval = h.eval
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local request = h.request
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local iswin = h.iswin
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describe('autocmd DirChanged and DirChangedPre', function()
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  local curdir = string.gsub(lfs.currentdir(), '\\', '/')
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  local dirs = {
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    curdir .. '/Xtest-functional-autocmd-dirchanged.dir1',
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    curdir .. '/Xtest-functional-autocmd-dirchanged.dir2',
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    curdir .. '/Xtest-functional-autocmd-dirchanged.dir3',
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  }
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  local win_dirs = {
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    curdir .. '\\XTEST-FUNCTIONAL-AUTOCMD-DIRCHANGED.DIR1',
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    curdir .. '\\XTEST-FUNCTIONAL-AUTOCMD-DIRCHANGED.DIR2',
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    curdir .. '\\XTEST-FUNCTIONAL-AUTOCMD-DIRCHANGED.DIR3',
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  }
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  setup(function()    for _, dir in pairs(dirs) do h.mkdir(dir) end end)
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  teardown(function() for _, dir in pairs(dirs) do h.rmdir(dir) end end)
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  before_each(function()
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    clear()
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    command('autocmd DirChangedPre * let [g:evpre, g:amatchpre, g:cdprecount] '
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            ..'= [copy(v:event), expand("<amatch>"), 1 + get(g:, "cdprecount", 0)]')
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    command('autocmd DirChanged * let [g:getcwd, g:ev, g:amatch, g:cdcount] '
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            ..'= [getcwd(), copy(v:event), expand("<amatch>"), 1 + get(g:, "cdcount", 0)]')
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    -- Normalize path separators.
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    command([[autocmd DirChangedPre * let g:evpre['directory'] = substitute(g:evpre['directory'], '\\', '/', 'g')]])
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    command([[autocmd DirChanged * let g:ev['cwd'] = substitute(g:ev['cwd'], '\\', '/', 'g')]])
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    command([[autocmd DirChanged * let g:getcwd = substitute(g:getcwd, '\\', '/', 'g')]])
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  end)
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  it('set v:event and <amatch>', function()
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    command('lcd '..dirs[1])
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    eq({directory=dirs[1], scope='window', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[1], scope='window', changed_window=false}, eval('g:ev'))
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    eq('window', eval('g:amatchpre'))
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    eq('window', eval('g:amatch'))
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    eq(1, eval('g:cdprecount'))
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    eq(1, eval('g:cdcount'))
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    command('tcd '..dirs[2])
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    eq({directory=dirs[2], scope='tabpage', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[2], scope='tabpage', changed_window=false}, eval('g:ev'))
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    eq('tabpage', eval('g:amatchpre'))
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    eq('tabpage', eval('g:amatch'))
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    eq(2, eval('g:cdprecount'))
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    eq(2, eval('g:cdcount'))
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    command('cd '..dirs[3])
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    eq({directory=dirs[3], scope='global', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[3], scope='global', changed_window=false}, eval('g:ev'))
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    eq('global', eval('g:amatchpre'))
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    eq('global', eval('g:amatch'))
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    eq(3, eval('g:cdprecount'))
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    eq(3, eval('g:cdcount'))
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  end)
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  it('DirChanged set getcwd() during event #6260', function()
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    command('lcd '..dirs[1])
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    eq(dirs[1], eval('g:getcwd'))
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    command('tcd '..dirs[2])
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    eq(dirs[2], eval('g:getcwd'))
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    command('cd '..dirs[3])
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    eq(dirs[3], eval('g:getcwd'))
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  end)
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  it('disallow recursion', function()
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    command('set shellslash')
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    -- Set up a _nested_ handler.
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    command('autocmd DirChanged * nested lcd '..dirs[3])
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    command('lcd '..dirs[1])
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    eq({cwd=dirs[1], scope='window', changed_window=false}, eval('g:ev'))
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    eq(1, eval('g:cdcount'))
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    -- autocmd changed to dirs[3], but did NOT trigger another DirChanged.
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    eq(dirs[3], eval('getcwd()'))
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  end)
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  it('only DirChangedPre is triggered if :cd fails', function()
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    command('let g:ev = {}')
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    command('let g:cdcount = 0')
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    local status1, err1 = pcall(function()
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      command('lcd '..dirs[1]..'/doesnotexist')
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    end)
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    eq({directory=dirs[1]..'/doesnotexist', scope='window', changed_window=false}, eval('g:evpre'))
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    eq({}, eval('g:ev'))
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    eq('window', eval('g:amatchpre'))
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    eq(1, eval('g:cdprecount'))
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    eq(0, eval('g:cdcount'))
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    local status2, err2 = pcall(function()
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      command('lcd '..dirs[2]..'/doesnotexist')
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    end)
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    eq({directory=dirs[2]..'/doesnotexist', scope='window', changed_window=false}, eval('g:evpre'))
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    eq({}, eval('g:ev'))
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    eq('window', eval('g:amatchpre'))
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    eq(2, eval('g:cdprecount'))
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    eq(0, eval('g:cdcount'))
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    local status3, err3 = pcall(function()
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      command('lcd '..dirs[3]..'/doesnotexist')
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    end)
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    eq({directory=dirs[3]..'/doesnotexist', scope='window', changed_window=false}, eval('g:evpre'))
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    eq({}, eval('g:ev'))
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    eq('window', eval('g:amatchpre'))
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    eq(3, eval('g:cdprecount'))
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    eq(0, eval('g:cdcount'))
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    eq(false, status1)
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    eq(false, status2)
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    eq(false, status3)
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    eq('E344:', string.match(err1, "E%d*:"))
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    eq('E344:', string.match(err2, "E%d*:"))
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    eq('E344:', string.match(err3, "E%d*:"))
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  end)
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  it("are triggered by 'autochdir'", function()
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    command('set autochdir')
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    command('split '..dirs[1]..'/foo')
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    eq({directory=dirs[1], scope='window', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[1], scope='window', changed_window=false}, eval('g:ev'))
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    eq('auto', eval('g:amatchpre'))
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    eq('auto', eval('g:amatch'))
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    eq(1, eval('g:cdprecount'))
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    eq(1, eval('g:cdcount'))
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    command('split '..dirs[2]..'/bar')
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    eq({directory=dirs[2], scope='window', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[2], scope='window', changed_window=false}, eval('g:ev'))
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    eq('auto', eval('g:amatch'))
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    eq(2, eval('g:cdprecount'))
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    eq(2, eval('g:cdcount'))
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  end)
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  it('do not trigger if directory has not changed', function()
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    command('lcd '..dirs[1])
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    eq({directory=dirs[1], scope='window', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[1], scope='window', changed_window=false}, eval('g:ev'))
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    eq('window', eval('g:amatchpre'))
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    eq('window', eval('g:amatch'))
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    eq(1, eval('g:cdprecount'))
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    eq(1, eval('g:cdcount'))
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    command('let g:evpre = {}')
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    command('let g:ev = {}')
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    command('lcd '..dirs[1])
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    eq({}, eval('g:evpre'))
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    eq({}, eval('g:ev'))
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    eq(1, eval('g:cdprecount'))
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    eq(1, eval('g:cdcount'))
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    if iswin() then
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      command('lcd '..win_dirs[1])
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      eq({}, eval('g:evpre'))
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      eq({}, eval('g:ev'))
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      eq(1, eval('g:cdprecount'))
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      eq(1, eval('g:cdcount'))
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    end
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    command('tcd '..dirs[2])
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    eq({directory=dirs[2], scope='tabpage', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[2], scope='tabpage', changed_window=false}, eval('g:ev'))
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    eq('tabpage', eval('g:amatchpre'))
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    eq('tabpage', eval('g:amatch'))
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    eq(2, eval('g:cdprecount'))
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    eq(2, eval('g:cdcount'))
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    command('let g:evpre = {}')
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    command('let g:ev = {}')
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    command('tcd '..dirs[2])
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    eq({}, eval('g:evpre'))
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    eq({}, eval('g:ev'))
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    eq(2, eval('g:cdprecount'))
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    eq(2, eval('g:cdcount'))
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    if iswin() then
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      command('tcd '..win_dirs[2])
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      eq({}, eval('g:evpre'))
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      eq({}, eval('g:ev'))
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      eq(2, eval('g:cdprecount'))
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      eq(2, eval('g:cdcount'))
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    end
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    command('cd '..dirs[3])
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    eq({directory=dirs[3], scope='global', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[3], scope='global', changed_window=false}, eval('g:ev'))
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    eq('global', eval('g:amatch'))
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    eq(3, eval('g:cdprecount'))
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    eq(3, eval('g:cdcount'))
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    command('let g:evpre = {}')
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    command('let g:ev = {}')
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    command('cd '..dirs[3])
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    eq({}, eval('g:evpre'))
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    eq({}, eval('g:ev'))
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    eq(3, eval('g:cdprecount'))
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    eq(3, eval('g:cdcount'))
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    if iswin() then
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      command('cd '..win_dirs[3])
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      eq({}, eval('g:evpre'))
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      eq({}, eval('g:ev'))
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      eq(3, eval('g:cdprecount'))
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      eq(3, eval('g:cdcount'))
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    end
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    command('set autochdir')
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    command('split '..dirs[1]..'/foo')
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    eq({directory=dirs[1], scope='window', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[1], scope='window', changed_window=false}, eval('g:ev'))
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    eq('auto', eval('g:amatchpre'))
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    eq('auto', eval('g:amatch'))
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    eq(4, eval('g:cdprecount'))
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    eq(4, eval('g:cdcount'))
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    command('let g:evpre = {}')
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    command('let g:ev = {}')
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    command('split '..dirs[1]..'/bar')
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    eq({}, eval('g:evpre'))
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    eq({}, eval('g:ev'))
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    eq(4, eval('g:cdprecount'))
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    eq(4, eval('g:cdcount'))
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    if iswin() then
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      command('split '..win_dirs[1]..'/baz')
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      eq({}, eval('g:evpre'))
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      eq({}, eval('g:ev'))
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      eq(4, eval('g:cdprecount'))
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      eq(4, eval('g:cdcount'))
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    end
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  end)
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  it("are triggered by switching to win/tab with different CWD #6054", function()
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    command('lcd '..dirs[3])            -- window 3
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    command('split '..dirs[2]..'/foo')  -- window 2
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    command('lcd '..dirs[2])
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    command('split '..dirs[1]..'/bar')  -- window 1
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    command('lcd '..dirs[1])
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    command('2wincmd w')                -- window 2
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    eq({directory=dirs[2], scope='window', changed_window=true}, eval('g:evpre'))
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    eq({cwd=dirs[2], scope='window', changed_window=true}, eval('g:ev'))
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    eq('window', eval('g:amatchpre'))
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    eq('window', eval('g:amatch'))
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    eq(4, eval('g:cdprecount'))
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    eq(4, eval('g:cdcount'))
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    command('tabnew')                   -- tab 2 (tab-local CWD)
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    eq(4, eval('g:cdprecount'))         -- same CWD, no DirChangedPre event
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    eq(4, eval('g:cdcount'))            -- same CWD, no DirChanged event
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    command('tcd '..dirs[3])
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    command('tabnext')                  -- tab 1 (no tab-local CWD)
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    eq({directory=dirs[2], scope='window', changed_window=true}, eval('g:evpre'))
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    eq({cwd=dirs[2], scope='window', changed_window=true}, eval('g:ev'))
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    eq('window', eval('g:amatchpre'))
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    eq('window', eval('g:amatch'))
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    command('tabnext')                  -- tab 2
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    eq({directory=dirs[3], scope='tabpage', changed_window=true}, eval('g:evpre'))
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    eq({cwd=dirs[3], scope='tabpage', changed_window=true}, eval('g:ev'))
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    eq('tabpage', eval('g:amatchpre'))
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    eq('tabpage', eval('g:amatch'))
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    eq(7, eval('g:cdprecount'))
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    eq(7, eval('g:cdcount'))
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    command('tabnext')                  -- tab 1
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    command('3wincmd w')                -- window 3
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    eq(9, eval('g:cdprecount'))
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    eq(9, eval('g:cdcount'))
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    command('tabnext')                  -- tab 2 (has the *same* CWD)
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    eq(9, eval('g:cdprecount'))         -- same CWD, no DirChangedPre event
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    eq(9, eval('g:cdcount'))            -- same CWD, no DirChanged event
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    if iswin() then
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      command('tabnew')                 -- tab 3
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tcd '..win_dirs[3])
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tabnext')                -- tab 1
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tabprevious')            -- tab 3
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tabprevious')            -- tab 2
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tabprevious')            -- tab 1
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('lcd '..win_dirs[3])      -- window 3
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tabnext')                -- tab 2
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tabnext')                -- tab 3
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tabnext')                -- tab 1
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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      command('tabprevious')            -- tab 3
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      eq(9, eval('g:cdprecount'))       -- same CWD, no DirChangedPre event
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      eq(9, eval('g:cdcount'))          -- same CWD, no DirChanged event
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    end
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  end)
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  it('are triggered by nvim_set_current_dir()', function()
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    request('nvim_set_current_dir', dirs[1])
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    eq({directory=dirs[1], scope='global', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[1], scope='global', changed_window=false}, eval('g:ev'))
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    eq(1, eval('g:cdprecount'))
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    eq(1, eval('g:cdcount'))
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    request('nvim_set_current_dir', dirs[2])
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    eq({directory=dirs[2], scope='global', changed_window=false}, eval('g:evpre'))
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    eq({cwd=dirs[2], scope='global', changed_window=false}, eval('g:ev'))
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    eq(2, eval('g:cdprecount'))
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    eq(2, eval('g:cdcount'))
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    local status, err = pcall(function()
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      request('nvim_set_current_dir', '/doesnotexist')
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    end)
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    eq(false, status)
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    eq('Failed to change directory', string.match(err, ': (.*)'))
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    eq({directory='/doesnotexist', scope='global', changed_window=false}, eval('g:evpre'))
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    eq(3, eval('g:cdprecount'))
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    eq(2, eval('g:cdcount'))
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  end)
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  it('work when local to buffer', function()
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    command('let g:triggeredpre = 0')
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    command('let g:triggered = 0')
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    command('autocmd DirChangedPre <buffer> let g:triggeredpre = 1')
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						|
    command('autocmd DirChanged <buffer> let g:triggered = 1')
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						|
    command('cd '..dirs[1])
 | 
						|
    eq(1, eval('g:triggeredpre'))
 | 
						|
    eq(1, eval('g:triggered'))
 | 
						|
  end)
 | 
						|
end)
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