1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
local helpers = require('test.functional.helpers')(after_each)
local eq = helpers.eq
local eval = helpers.eval
local feed = helpers.feed
local clear = helpers.clear
local fn = helpers.fn
local api = helpers.api
local command = helpers.command
local exc_exec = helpers.exc_exec
local pcall_err = helpers.pcall_err
local exec_capture = helpers.exec_capture
before_each(clear)
local function changedtick()
local ct = api.nvim_buf_get_changedtick(0)
eq(ct, api.nvim_buf_get_var(0, 'changedtick'))
eq(ct, api.nvim_buf_get_var(0, 'changedtick'))
eq(ct, eval('b:changedtick'))
eq(ct, eval('b:["changedtick"]'))
eq(ct, eval('b:.changedtick'))
eq(ct, fn.getbufvar('%', 'changedtick'))
eq(ct, fn.getbufvar('%', '').changedtick)
eq(ct, eval('b:').changedtick)
return ct
end
describe('b:changedtick', function()
-- Ported tests from Vim-8.0.333
it('increments', function() -- Test_changedtick_increments
-- New buffer has an empty line, tick starts at 2
eq(2, changedtick())
fn.setline(1, 'hello')
eq(3, changedtick())
eq(0, exc_exec('undo'))
-- Somehow undo counts as two changes
eq(5, changedtick())
end)
it('is present in b: dictionary', function()
eq(2, changedtick())
command('let d = b:')
eq(2, api.nvim_get_var('d').changedtick)
end)
it('increments at bdel', function()
command('new')
eq(2, changedtick())
local bnr = api.nvim_buf_get_number(0)
eq(2, bnr)
command('bdel')
eq(3, fn.getbufvar(bnr, 'changedtick'))
eq(1, api.nvim_buf_get_number(0))
end)
it('fails to be changed by user', function()
local ct = changedtick()
local ctn = ct + 100500
eq(0, exc_exec('let d = b:'))
eq(
'Vim(let):E46: Cannot change read-only variable "b:changedtick"',
pcall_err(command, 'let b:changedtick = ' .. ctn)
)
eq(
'Vim(let):E46: Cannot change read-only variable "b:["changedtick"]"',
pcall_err(command, 'let b:["changedtick"] = ' .. ctn)
)
eq(
'Vim(let):E46: Cannot change read-only variable "b:.changedtick"',
pcall_err(command, 'let b:.changedtick = ' .. ctn)
)
eq(
'Vim(let):E46: Cannot change read-only variable "d.changedtick"',
pcall_err(command, 'let d.changedtick = ' .. ctn)
)
eq('Key is read-only: changedtick', pcall_err(api.nvim_buf_set_var, 0, 'changedtick', ctn))
eq(
'Vim(unlet):E795: Cannot delete variable b:changedtick',
pcall_err(command, 'unlet b:changedtick')
)
eq(
'Vim(unlet):E46: Cannot change read-only variable "b:.changedtick"',
pcall_err(command, 'unlet b:.changedtick')
)
eq(
'Vim(unlet):E46: Cannot change read-only variable "b:["changedtick"]"',
pcall_err(command, 'unlet b:["changedtick"]')
)
eq(
'Vim(unlet):E46: Cannot change read-only variable "d.changedtick"',
pcall_err(command, 'unlet d.changedtick')
)
eq('Key is read-only: changedtick', pcall_err(api.nvim_buf_del_var, 0, 'changedtick'))
eq(ct, changedtick())
eq(
'Vim(let):E46: Cannot change read-only variable "b:["changedtick"]"',
pcall_err(command, 'let b:["changedtick"] += ' .. ctn)
)
eq(
'Vim(let):E46: Cannot change read-only variable "b:["changedtick"]"',
pcall_err(command, 'let b:["changedtick"] -= ' .. ctn)
)
eq(
'Vim(let):E46: Cannot change read-only variable "b:["changedtick"]"',
pcall_err(command, 'let b:["changedtick"] .= ' .. ctn)
)
eq(ct, changedtick())
fn.setline(1, 'hello')
eq(ct + 1, changedtick())
end)
it('is listed in :let output', function()
eq('b:changedtick #2', exec_capture(':let b:'))
end)
it('fails to unlock b:changedtick', function()
eq(0, exc_exec('let d = b:'))
eq(0, fn.islocked('b:changedtick'))
eq(0, fn.islocked('d.changedtick'))
eq(
'Vim(unlockvar):E940: Cannot lock or unlock variable b:changedtick',
pcall_err(command, 'unlockvar b:changedtick')
)
eq(
'Vim(unlockvar):E46: Cannot change read-only variable "d.changedtick"',
pcall_err(command, 'unlockvar d.changedtick')
)
eq(0, fn.islocked('b:changedtick'))
eq(0, fn.islocked('d.changedtick'))
eq(
'Vim(lockvar):E940: Cannot lock or unlock variable b:changedtick',
pcall_err(command, 'lockvar b:changedtick')
)
eq(
'Vim(lockvar):E46: Cannot change read-only variable "d.changedtick"',
pcall_err(command, 'lockvar d.changedtick')
)
eq(0, fn.islocked('b:changedtick'))
eq(0, fn.islocked('d.changedtick'))
end)
it('is being completed', function()
feed(':echo b:<Tab><Home>let cmdline="<End>"<CR>')
eq('echo b:changedtick', api.nvim_get_var('cmdline'))
end)
it('cannot be changed by filter() or map()', function()
eq(2, changedtick())
eq(
'Vim(call):E795: Cannot delete variable filter() argument',
pcall_err(command, 'call filter(b:, 0)')
)
eq(
'Vim(call):E742: Cannot change value of map() argument',
pcall_err(command, 'call map(b:, 0)')
)
eq(
'Vim(call):E742: Cannot change value of map() argument',
pcall_err(command, 'call map(b:, "v:val")')
)
eq(2, changedtick())
end)
it('cannot be remove()d', function()
eq(2, changedtick())
eq(
'Vim(call):E795: Cannot delete variable remove() argument',
pcall_err(command, 'call remove(b:, "changedtick")')
)
eq(2, changedtick())
end)
it('does not inherit VAR_FIXED when copying dictionary over', function()
eq(2, changedtick())
eq('', exec_capture('let d1 = copy(b:)|let d1.changedtick = 42'))
eq('', exec_capture('let d2 = copy(b:)|unlet d2.changedtick'))
eq(2, changedtick())
end)
end)
|
