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-rw-r--r--test/functional/api/buffer_spec.lua704
1 files changed, 704 insertions, 0 deletions
diff --git a/test/functional/api/buffer_spec.lua b/test/functional/api/buffer_spec.lua
index 292e5a2d56..9833ebee4c 100644
--- a/test/functional/api/buffer_spec.lua
+++ b/test/functional/api/buffer_spec.lua
@@ -848,6 +848,710 @@ describe('api/buf', function()
eq({1, 4}, meths.win_get_cursor(win2))
end)
+ describe('when text is being added right at cursor position #22526', function()
+ it('updates the cursor position in NORMAL mode', function()
+ insert([[
+ abcd]])
+
+ -- position the cursor on 'c'
+ curwin('set_cursor', {1, 2})
+ -- add 'xxx' before 'c'
+ set_text(0, 2, 0, 2, {'xxx'})
+ eq({'abxxxcd'}, get_lines(0, -1, true))
+ -- cursor should be on 'c'
+ eq({1, 5}, curwin('get_cursor'))
+ end)
+
+ it('updates the cursor position only in non-current window when in INSERT mode', function()
+ insert([[
+ abcd]])
+
+ -- position the cursor on 'c'
+ curwin('set_cursor', {1, 2})
+ -- open vertical split
+ feed('<c-w>v')
+ -- get into INSERT mode to treat cursor
+ -- as being after 'b', not on 'c'
+ feed('i')
+ -- add 'xxx' between 'b' and 'c'
+ set_text(0, 2, 0, 2, {'xxx'})
+ eq({'abxxxcd'}, get_lines(0, -1, true))
+ -- in the current window cursor should stay after 'b'
+ eq({1, 2}, curwin('get_cursor'))
+ -- quit INSERT mode
+ feed('<esc>')
+ -- close current window
+ feed('<c-w>c')
+ -- in another window cursor should be on 'c'
+ eq({1, 5}, curwin('get_cursor'))
+ end)
+ end)
+
+ describe('when text is being deleted right at cursor position', function()
+ it('leaves cursor at the same position in NORMAL mode', function()
+ insert([[
+ abcd]])
+
+ -- position the cursor on 'b'
+ curwin('set_cursor', {1, 1})
+ -- delete 'b'
+ set_text(0, 1, 0, 2, {})
+ eq({'acd'}, get_lines(0, -1, true))
+ -- cursor is now on 'c'
+ eq({1, 1}, curwin('get_cursor'))
+ end)
+
+ it('leaves cursor at the same position in INSERT mode in current and non-current window', function()
+ insert([[
+ abcd]])
+
+ -- position the cursor on 'b'
+ curwin('set_cursor', {1, 1})
+ -- open vertical split
+ feed('<c-w>v')
+ -- get into INSERT mode to treat cursor
+ -- as being after 'a', not on 'b'
+ feed('i')
+ -- delete 'b'
+ set_text(0, 1, 0, 2, {})
+ eq({'acd'}, get_lines(0, -1, true))
+ -- cursor in the current window should stay after 'a'
+ eq({1, 1}, curwin('get_cursor'))
+ -- quit INSERT mode
+ feed('<esc>')
+ -- close current window
+ feed('<c-w>c')
+ -- cursor in non-current window should stay on 'c'
+ eq({1, 1}, curwin('get_cursor'))
+ end)
+ end)
+
+ describe('when cursor is inside replaced row range', function()
+ it('keeps cursor at the same position if cursor is at start_row, but before start_col', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on ' ' before 'first'
+ curwin('set_cursor', {1, 14})
+
+ set_text(0, 15, 2, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should stay at the same position
+ eq({1, 14}, curwin('get_cursor'))
+ end)
+
+ it('keeps cursor at the same position if cursor is at start_row and column is still valid', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'f' in 'first'
+ curwin('set_cursor', {1, 15})
+
+ set_text(0, 15, 2, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should stay at the same position
+ eq({1, 15}, curwin('get_cursor'))
+ end)
+
+ it('adjusts cursor column to keep it valid if start_row got smaller', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 't' in 'first'
+ curwin('set_cursor', {1, 19})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 24, {'last'})
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({ 'This should be last' }, get_lines(0, -1, true))
+ -- cursor should end up on 't' in 'last'
+ eq({1, 18}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 18}, cursor)
+ end)
+
+ it('adjusts cursor column to keep it valid if start_row got smaller in INSERT mode', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 't' in 'first'
+ curwin('set_cursor', {1, 19})
+ -- enter INSERT mode to treat cursor as being after 't'
+ feed('a')
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 24, {'last'})
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({ 'This should be last' }, get_lines(0, -1, true))
+ -- cursor should end up after 't' in 'last'
+ eq({1, 19}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 19}, cursor)
+ end)
+
+ it('adjusts cursor column to keep it valid in a row after start_row if it got smaller', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'w' in 'want'
+ curwin('set_cursor', {2, 31})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 11, {
+ '1',
+ 'then 2',
+ 'and then',
+ })
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({
+ 'This should be 1',
+ 'then 2',
+ 'and then the last one',
+ }, get_lines(0, -1, true))
+ -- cursor column should end up at the end of a row
+ eq({2, 5}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({2, 5}, cursor)
+ end)
+
+ it('adjusts cursor column to keep it valid in a row after start_row if it got smaller in INSERT mode', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'w' in 'want'
+ curwin('set_cursor', {2, 31})
+ -- enter INSERT mode
+ feed('a')
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 11, {
+ '1',
+ 'then 2',
+ 'and then',
+ })
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({
+ 'This should be 1',
+ 'then 2',
+ 'and then the last one',
+ }, get_lines(0, -1, true))
+ -- cursor column should end up at the end of a row
+ eq({2, 6}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({2, 6}, cursor)
+ end)
+
+ it('adjusts cursor line and column to keep it inside replacement range', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'n' in 'finally'
+ curwin('set_cursor', {3, 6})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should end up on 'y' in 'hopefully'
+ -- to stay in the range, because it got smaller
+ eq({2, 12}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({2, 12}, cursor)
+ end)
+
+ it('adjusts cursor line and column if replacement is empty', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'r' in 'there'
+ curwin('set_cursor', {2, 8})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 12, {})
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({ 'This should be the last one' }, get_lines(0, -1, true))
+ -- cursor should end up on the next column after deleted range
+ eq({1, 15}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 15}, cursor)
+ end)
+
+ it('adjusts cursor line and column if replacement is empty and start_col == 0', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'r' in 'there'
+ curwin('set_cursor', {2, 8})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 0, 2, 4, {})
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({ 'finally the last one' }, get_lines(0, -1, true))
+ -- cursor should end up in column 0
+ eq({1, 0}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 0}, cursor)
+ end)
+
+ it('adjusts cursor column if replacement ends at cursor row, after cursor column', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'y' in 'finally'
+ curwin('set_cursor', {3, 10})
+ set_text(0, 15, 2, 11, { '1', 'this 2', 'and then' })
+
+ eq({
+ 'This should be 1',
+ 'this 2',
+ 'and then the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should end up on 'n' in 'then'
+ eq({3, 7}, curwin('get_cursor'))
+ end)
+
+ it('adjusts cursor column if replacement ends at cursor row, at cursor column in INSERT mode', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'y' at 'finally'
+ curwin('set_cursor', {3, 10})
+ -- enter INSERT mode to treat cursor as being between 'l' and 'y'
+ feed('i')
+ set_text(0, 15, 2, 11, { '1', 'this 2', 'and then' })
+
+ eq({
+ 'This should be 1',
+ 'this 2',
+ 'and then the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should end up after 'n' in 'then'
+ eq({3, 8}, curwin('get_cursor'))
+ end)
+
+ it('adjusts cursor column if replacement is inside of a single line', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'y' in 'finally'
+ curwin('set_cursor', {3, 10})
+ set_text(2, 4, 2, 11, { 'then' })
+
+ eq({
+ 'This should be first',
+ 'then there is a line we do not want',
+ 'and then the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should end up on 'n' in 'then'
+ eq({3, 7}, curwin('get_cursor'))
+ end)
+
+ it('does not move cursor column after end of a line', function()
+ insert([[
+ This should be the only line here
+ !!!]])
+
+ -- position cursor on the last '1'
+ curwin('set_cursor', {2, 2})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 33, 1, 3, {})
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({ 'This should be the only line here' }, get_lines(0, -1, true))
+ -- cursor should end up on '!'
+ eq({1, 32}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 32}, cursor)
+ end)
+
+ it('does not move cursor column before start of a line', function()
+ insert('\n!!!')
+
+ -- position cursor on the last '1'
+ curwin('set_cursor', {2, 2})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 0, 1, 3, {})
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({ '' }, get_lines(0, -1, true))
+ -- cursor should end up on '!'
+ eq({1, 0}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 0}, cursor)
+ end)
+
+ describe('with virtualedit', function()
+ it('adjusts cursor line and column to keep it inside replacement range if cursor is not after eol', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position cursor on 't' in 'want'
+ curwin('set_cursor', {2, 34})
+ -- turn on virtualedit
+ command('set virtualedit=all')
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should end up on 'y' in 'hopefully'
+ -- to stay in the range
+ eq({2, 12}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({2, 12}, cursor)
+ -- coladd should be 0
+ eq(0, exec_lua([[
+ return vim.fn.winsaveview().coladd
+ ]]))
+ end)
+
+ it('does not change cursor screen column when cursor is after eol and row got shorter', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position cursor on 't' in 'want'
+ curwin('set_cursor', {2, 34})
+ -- turn on virtualedit
+ command('set virtualedit=all')
+ -- move cursor after eol
+ exec_lua([[
+ vim.fn.winrestview({ coladd = 5 })
+ ]])
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should end up at eol of a new row
+ eq({2, 26}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({2, 26}, cursor)
+ -- coladd should be increased so that cursor stays in the same screen column
+ eq(13, exec_lua([[
+ return vim.fn.winsaveview().coladd
+ ]]))
+ end)
+
+ it('does not change cursor screen column when cursor is after eol and row got longer', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position cursor on 't' in 'first'
+ curwin('set_cursor', {1, 19})
+ -- turn on virtualedit
+ command('set virtualedit=all')
+ -- move cursor after eol
+ exec_lua([[
+ vim.fn.winrestview({ coladd = 21 })
+ ]])
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should end up at eol of a new row
+ eq({1, 38}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 38}, cursor)
+ -- coladd should be increased so that cursor stays in the same screen column
+ eq(2, exec_lua([[
+ return vim.fn.winsaveview().coladd
+ ]]))
+ end)
+
+ it('does not change cursor screen column when cursor is after eol and row extended past cursor column', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position cursor on 't' in 'first'
+ curwin('set_cursor', {1, 19})
+ -- turn on virtualedit
+ command('set virtualedit=all')
+ -- move cursor after eol just a bit
+ exec_lua([[
+ vim.fn.winrestview({ coladd = 3 })
+ ]])
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 2, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should stay at the same screen column
+ eq({1, 22}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 22}, cursor)
+ -- coladd should become 0
+ eq(0, exec_lua([[
+ return vim.fn.winsaveview().coladd
+ ]]))
+ end)
+
+ it('does not change cursor screen column when cursor is after eol and row range decreased', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and one more
+ and finally the last one]])
+
+ -- position cursor on 'e' in 'more'
+ curwin('set_cursor', {3, 11})
+ -- turn on virtualedit
+ command('set virtualedit=all')
+ -- move cursor after eol
+ exec_lua([[
+ vim.fn.winrestview({ coladd = 28 })
+ ]])
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 15, 3, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should end up at eol of a new row
+ eq({2, 26}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({2, 26}, cursor)
+ -- coladd should be increased so that cursor stays in the same screen column
+ eq(13, exec_lua([[
+ return vim.fn.winsaveview().coladd
+ ]]))
+ end)
+ end)
+ end)
+
+ describe('when cursor is at end_row and after end_col', function()
+ it('adjusts cursor column when only a newline is added or deleted', function()
+ insert([[
+ first line
+ second
+ line]])
+
+ -- position the cursor on 'i'
+ curwin('set_cursor', {3, 2})
+ set_text(1, 6, 2, 0, {})
+ eq({'first line', 'second line'}, get_lines(0, -1, true))
+ -- cursor should stay on 'i'
+ eq({2, 8}, curwin('get_cursor'))
+
+ -- add a newline back
+ set_text(1, 6, 1, 6, {'', ''})
+ eq({'first line', 'second', ' line'}, get_lines(0, -1, true))
+ -- cursor should return back to the original position
+ eq({3, 2}, curwin('get_cursor'))
+ end)
+
+ it('adjusts cursor column if the range is not bound to either start or end of a line', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 'h' in 'the'
+ curwin('set_cursor', {3, 13})
+ set_text(0, 14, 2, 11, {})
+ eq({'This should be the last one'}, get_lines(0, -1, true))
+ -- cursor should stay on 'h'
+ eq({1, 16}, curwin('get_cursor'))
+ -- add deleted lines back
+ set_text(0, 14, 0, 14, {
+ ' first',
+ 'then there is a line we do not want',
+ 'and finally',
+ })
+ eq({
+ 'This should be first',
+ 'then there is a line we do not want',
+ 'and finally the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should return back to the original position
+ eq({3, 13}, curwin('get_cursor'))
+ end)
+
+ it('adjusts cursor column if replacing lines in range, not just deleting and adding', function()
+ insert([[
+ This should be first
+ then there is a line we do not want
+ and finally the last one]])
+
+ -- position the cursor on 's' in 'last'
+ curwin('set_cursor', {3, 18})
+ set_text(0, 15, 2, 11, {
+ 'the line we do not want',
+ 'but hopefully',
+ })
+
+ eq({
+ 'This should be the line we do not want',
+ 'but hopefully the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should stay on 's'
+ eq({2, 20}, curwin('get_cursor'))
+
+ set_text(0, 15, 1, 13, {
+ 'first',
+ 'then there is a line we do not want',
+ 'and finally',
+ })
+
+ eq({
+ 'This should be first',
+ 'then there is a line we do not want',
+ 'and finally the last one',
+ }, get_lines(0, -1, true))
+ -- cursor should return back to the original position
+ eq({3, 18}, curwin('get_cursor'))
+ end)
+
+ it('does not move cursor column after end of a line', function()
+ insert([[
+ This should be the only line here
+ ]])
+
+ -- position cursor at the empty line
+ curwin('set_cursor', {2, 0})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 33, 1, 0, {'!'})
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({ 'This should be the only line here!' }, get_lines(0, -1, true))
+ -- cursor should end up on '!'
+ eq({1, 33}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 33}, cursor)
+ end)
+
+ it('does not move cursor column before start of a line', function()
+ insert('\n')
+
+ eq({ '', '' }, get_lines(0, -1, true))
+
+ -- position cursor on the last '1'
+ curwin('set_cursor', {2, 2})
+
+ local cursor = exec_lua([[
+ vim.api.nvim_buf_set_text(0, 0, 0, 1, 0, {''})
+ return vim.api.nvim_win_get_cursor(0)
+ ]])
+
+ eq({ '' }, get_lines(0, -1, true))
+ -- cursor should end up on '!'
+ eq({1, 0}, curwin('get_cursor'))
+ -- immediate call to nvim_win_get_cursor should have returned the same position
+ eq({1, 0}, cursor)
+ end)
+ end)
+
it('can handle NULs', function()
set_text(0, 0, 0, 0, {'ab\0cd'})
eq('ab\0cd', curbuf_depr('get_line', 0))