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https://github.com/neovim/neovim.git
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24b5f69a49
This caused segfaults when calling win_findbuf in an `on_detach` callback, when the callback was triggered when closing the last window containing the buffer.
239 lines
7.2 KiB
Lua
239 lines
7.2 KiB
Lua
-- Test suite for testing interactions with API bindings
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local helpers = require('test.functional.helpers')(after_each)
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local command = helpers.command
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local meths = helpers.meths
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local clear = helpers.clear
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local eq = helpers.eq
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local exec_lua = helpers.exec_lua
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local feed = helpers.feed
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local origlines = {"original line 1",
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"original line 2",
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"original line 3",
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"original line 4",
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"original line 5",
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"original line 6",
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" indented line"}
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describe('lua: buffer event callbacks', function()
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before_each(function()
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clear()
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exec_lua([[
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local events = {}
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function test_register(bufnr, id, changedtick, utf_sizes)
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local function callback(...)
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table.insert(events, {id, ...})
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if test_unreg == id then
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return true
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end
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end
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local opts = {on_lines=callback, on_detach=callback, utf_sizes=utf_sizes}
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if changedtick then
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opts.on_changedtick = callback
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end
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vim.api.nvim_buf_attach(bufnr, false, opts)
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end
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function get_events()
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local ret_events = events
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events = {}
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return ret_events
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end
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]])
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end)
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-- verifying the sizes with nvim_buf_get_offset is nice (checks we cannot
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-- assert the wrong thing), but masks errors with unflushed lines (as
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-- nvim_buf_get_offset forces a flush of the memline). To be safe run the
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-- test both ways.
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local function check(verify,utf_sizes)
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local lastsize
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meths.buf_set_lines(0, 0, -1, true, origlines)
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if verify then
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lastsize = meths.buf_get_offset(0, meths.buf_line_count(0))
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end
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exec_lua("return test_register(...)", 0, "test1",false,utf_sizes)
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local tick = meths.buf_get_changedtick(0)
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local verify_name = "test1"
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local function check_events(expected)
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local events = exec_lua("return get_events(...)" )
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if utf_sizes then
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-- this test case uses ASCII only, so sizes sshould be the same.
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-- Unicode is tested below.
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for _, event in ipairs(expected) do
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event[9] = event[8]
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event[10] = event[8]
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end
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end
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eq(expected, events)
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if verify then
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for _, event in ipairs(events) do
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if event[1] == verify_name and event[2] == "lines" then
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local startline, endline = event[5], event[7]
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local newrange = meths.buf_get_offset(0, endline) - meths.buf_get_offset(0, startline)
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local newsize = meths.buf_get_offset(0, meths.buf_line_count(0))
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local oldrange = newrange + lastsize - newsize
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eq(oldrange, event[8])
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lastsize = newsize
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end
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end
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end
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end
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command('set autoindent')
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command('normal! GyyggP')
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tick = tick + 1
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check_events({{ "test1", "lines", 1, tick, 0, 0, 1, 0}})
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meths.buf_set_lines(0, 3, 5, true, {"changed line"})
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tick = tick + 1
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check_events({{ "test1", "lines", 1, tick, 3, 5, 4, 32 }})
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exec_lua("return test_register(...)", 0, "test2", true, utf_sizes)
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tick = tick + 1
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command('undo')
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-- plugins can opt in to receive changedtick events, or choose
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-- to only receive actual changes.
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check_events({{ "test1", "lines", 1, tick, 3, 4, 5, 13 },
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{ "test2", "lines", 1, tick, 3, 4, 5, 13 },
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{ "test2", "changedtick", 1, tick+1 } })
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tick = tick + 1
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-- simulate next callback returning true
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exec_lua("test_unreg = 'test1'")
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meths.buf_set_lines(0, 6, 7, true, {"x1","x2","x3"})
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tick = tick + 1
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-- plugins can opt in to receive changedtick events, or choose
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-- to only receive actual changes.
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check_events({{ "test1", "lines", 1, tick, 6, 7, 9, 16 },
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{ "test2", "lines", 1, tick, 6, 7, 9, 16 }})
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verify_name = "test2"
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meths.buf_set_lines(0, 1, 1, true, {"added"})
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tick = tick + 1
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check_events({{ "test2", "lines", 1, tick, 1, 1, 2, 0 }})
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feed('wix')
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tick = tick + 1
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check_events({{ "test2", "lines", 1, tick, 4, 5, 5, 16 }})
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-- check hot path for multiple insert
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feed('yz')
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tick = tick + 1
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check_events({{ "test2", "lines", 1, tick, 4, 5, 5, 17 }})
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feed('<bs>')
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tick = tick + 1
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check_events({{ "test2", "lines", 1, tick, 4, 5, 5, 19 }})
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feed('<esc>Go')
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tick = tick + 1
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check_events({{ "test2", "lines", 1, tick, 11, 11, 12, 0 }})
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feed('x')
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tick = tick + 1
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check_events({{ "test2", "lines", 1, tick, 11, 12, 12, 5 }})
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command('bwipe!')
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check_events({{ "test2", "detach", 1 }})
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end
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it('works', function()
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check(false)
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end)
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it('works with verify', function()
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check(true)
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end)
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it('works with utf_sizes and ASCII text', function()
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check(false,true)
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end)
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it('works with utf_sizes and unicode text', function()
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local unicode_text = {"ascii text",
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"latin text åäö",
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"BMP text ɧ αλφά",
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"BMP text 汉语 ↥↧",
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"SMP 🤦 🦄🦃",
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"combining å بِيَّة"}
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meths.buf_set_lines(0, 0, -1, true, unicode_text)
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feed('gg')
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exec_lua("return test_register(...)", 0, "test1", false, true)
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local tick = meths.buf_get_changedtick(0)
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feed('dd')
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tick = tick + 1
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eq({{ "test1", "lines", 1, tick, 0, 1, 0, 11, 11, 11 }}, exec_lua("return get_events(...)" ))
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feed('A<bs>')
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tick = tick + 1
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eq({{ "test1", "lines", 1, tick, 0, 1, 1, 18, 15, 15 }}, exec_lua("return get_events(...)" ))
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feed('<esc>jylp')
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tick = tick + 1
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eq({{ "test1", "lines", 1, tick, 1, 2, 2, 21, 16, 16 }}, exec_lua("return get_events(...)" ))
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feed('+eea<cr>')
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tick = tick + 1
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eq({{ "test1", "lines", 1, tick, 2, 3, 4, 23, 15, 15 }}, exec_lua("return get_events(...)" ))
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feed('<esc>jdw')
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tick = tick + 1
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-- non-BMP chars count as 2 UTF-2 codeunits
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eq({{ "test1", "lines", 1, tick, 4, 5, 5, 18, 9, 12 }}, exec_lua("return get_events(...)" ))
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feed('+rx')
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tick = tick + 1
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-- count the individual codepoints of a composed character.
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eq({{ "test1", "lines", 1, tick, 5, 6, 6, 27, 20, 20 }}, exec_lua("return get_events(...)" ))
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feed('kJ')
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tick = tick + 1
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-- NB: this is inefficient (but not really wrong).
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eq({{ "test1", "lines", 1, tick, 4, 5, 5, 14, 5, 8 },
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{ "test1", "lines", 1, tick+1, 5, 6, 5, 27, 20, 20 }}, exec_lua("return get_events(...)" ))
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end)
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it('has valid cursor position while shifting', function()
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meths.buf_set_lines(0, 0, -1, true, {'line1'})
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exec_lua([[
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vim.api.nvim_buf_attach(0, false, {
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on_lines = function()
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vim.api.nvim_set_var('listener_cursor_line', vim.api.nvim_win_get_cursor(0)[1])
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end,
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})
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]])
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feed('>>')
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eq(1, meths.get_var('listener_cursor_line'))
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end)
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it('does not SEGFAULT when calling win_findbuf in on_detach', function()
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exec_lua[[
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local buf = vim.api.nvim_create_buf(false, false)
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vim.cmd"split"
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vim.api.nvim_win_set_buf(0, buf)
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vim.api.nvim_buf_attach(buf, false, {
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on_detach = function(_, buf)
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vim.fn.win_findbuf(buf)
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end
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})
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]]
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command("q!")
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helpers.assert_alive()
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end)
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end)
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