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gerrit.omnirom.org / android_external_vim / c6aa475a27e3ed1645446b014c32ebf68d005d49 / . / src / testdir / test_undo.vim
blob: fb1cdc836af1b52c5ed77cb60b2c56bbbf7fb0bf [file] [log] [blame]
Bram Moolenaar170b10b2016-07-29 16:15:27 +0200[diff] [blame]1" Tests for the undo tree.
2" Since this script is sourced we need to explicitly break changes up in
3" undo-able pieces. Do that by setting 'undolevels'.
4" Also tests :earlier and :later.
5
6func Test_undotree()
7 exe "normal Aabc\<Esc>"
8 set ul=100
9 exe "normal Adef\<Esc>"
10 set ul=100
11 undo
12 let d = undotree()
13 call assert_true(d.seq_last > 0)
14 call assert_true(d.seq_cur > 0)
15 call assert_true(d.seq_cur < d.seq_last)
16 call assert_true(len(d.entries) > 0)
17 " TODO: check more members of d
18
19 w! Xtest
20 call assert_equal(d.save_last + 1, undotree().save_last)
21 call delete('Xtest')
22 bwipe Xtest
23endfunc
24
25func FillBuffer()
26 for i in range(1,13)
27 put=i
28 " Set 'undolevels' to split undo.
29 exe "setg ul=" . &g:ul
30 endfor
31endfunc
32
33func Test_global_local_undolevels()
34 new one
35 set undolevels=5
36 call FillBuffer()
37 " will only undo the last 5 changes, end up with 13 - (5 + 1) = 7 lines
38 earlier 10
39 call assert_equal(5, &g:undolevels)
40 call assert_equal(-123456, &l:undolevels)
41 call assert_equal('7', getline('$'))
42
43 new two
44 setlocal undolevels=2
45 call FillBuffer()
46 " will only undo the last 2 changes, end up with 13 - (2 + 1) = 10 lines
47 earlier 10
48 call assert_equal(5, &g:undolevels)
49 call assert_equal(2, &l:undolevels)
50 call assert_equal('10', getline('$'))
51
52 setlocal ul=10
53 call assert_equal(5, &g:undolevels)
54 call assert_equal(10, &l:undolevels)
55
56 " Setting local value in "two" must not change local value in "one"
57 wincmd p
58 call assert_equal(5, &g:undolevels)
59 call assert_equal(-123456, &l:undolevels)
60
61 new three
62 setglobal ul=50
63 call assert_equal(50, &g:undolevels)
64 call assert_equal(-123456, &l:undolevels)
65
66 " Drop created windows
67 set ul&
68 new
69 only!
70endfunc
71
72func BackOne(expected)
73 call feedkeys('g-', 'xt')
74 call assert_equal(a:expected, getline(1))
75endfunc
76
77func Test_undo_del_chars()
78 " Setup a buffer without creating undo entries
79 new
80 set ul=-1
81 call setline(1, ['123-456'])
82 set ul=100
83 1
84 call test_settime(100)
85
86 " Delete three characters and undo with g-
87 call feedkeys('x', 'xt')
88 call feedkeys('x', 'xt')
89 call feedkeys('x', 'xt')
90 call assert_equal('-456', getline(1))
91 call BackOne('3-456')
92 call BackOne('23-456')
93 call BackOne('123-456')
94 call assert_fails("BackOne('123-456')")
95
96 :" Delete three other characters and go back in time with g-
97 call feedkeys('$x', 'xt')
98 call feedkeys('x', 'xt')
99 call feedkeys('x', 'xt')
100 call assert_equal('123-', getline(1))
101 call test_settime(101)
102
103 call BackOne('123-4')
104 call BackOne('123-45')
105 " skips '123-456' because it's older
106 call BackOne('-456')
107 call BackOne('3-456')
108 call BackOne('23-456')
109 call BackOne('123-456')
110 call assert_fails("BackOne('123-456')")
111 normal 10g+
112 call assert_equal('123-', getline(1))
113
114 :" Jump two seconds and go some seconds forward and backward
115 call test_settime(103)
116 call feedkeys("Aa\<Esc>", 'xt')
117 call feedkeys("Ab\<Esc>", 'xt')
118 call feedkeys("Ac\<Esc>", 'xt')
119 call assert_equal('123-abc', getline(1))
120 earlier 1s
121 call assert_equal('123-', getline(1))
122 earlier 3s
123 call assert_equal('123-456', getline(1))
124 later 1s
125 call assert_equal('123-', getline(1))
126 later 1h
127 call assert_equal('123-abc', getline(1))
128
129 close!
130endfunc
131
Bram Moolenaarc628fdc2016-08-31 20:33:27 +0200[diff] [blame]132func Test_undolist()
133 new
134 set ul=100
135
136 let a=execute('undolist')
137 call assert_equal("\nNothing to undo", a)
138
139 " 1 leaf (2 changes).
140 call feedkeys('achange1', 'xt')
141 call feedkeys('achange2', 'xt')
142 let a=execute('undolist')
143 call assert_match("^\nnumber changes when *saved\n *2 *2 .*$", a)
144
145 " 2 leaves.
146 call feedkeys('u', 'xt')
147 call feedkeys('achange3\<Esc>', 'xt')
148 let a=execute('undolist')
149 call assert_match("^\nnumber changes when *saved\n *2 *2 *.*\n *3 *2 .*$", a)
150 close!
151endfunc
152
153func Test_U_command()
154 new
155 set ul=100
156 call feedkeys("achange1\<Esc>", 'xt')
157 call feedkeys("achange2\<Esc>", 'xt')
158 norm! U
159 call assert_equal('', getline(1))
160 norm! U
161 call assert_equal('change1change2', getline(1))
162 close!
163endfunc
164
Bram Moolenaar170b10b2016-07-29 16:15:27 +0200[diff] [blame]165func Test_undojoin()
166 new
167 call feedkeys("Goaaaa\<Esc>", 'xt')
168 call feedkeys("obbbb\<Esc>", 'xt')
169 call assert_equal(['aaaa', 'bbbb'], getline(2, '$'))
170 call feedkeys("u", 'xt')
171 call assert_equal(['aaaa'], getline(2, '$'))
172 call feedkeys("obbbb\<Esc>", 'xt')
173 undojoin
174 " Note: next change must not be as if typed
175 call feedkeys("occcc\<Esc>", 'x')
176 call assert_equal(['aaaa', 'bbbb', 'cccc'], getline(2, '$'))
177 call feedkeys("u", 'xt')
178 call assert_equal(['aaaa'], getline(2, '$'))
179 close!
180endfunc
181
182func Test_undo_write()
183 split Xtest
184 call feedkeys("ione one one\<Esc>", 'xt')
185 w!
186 call feedkeys("otwo\<Esc>", 'xt')
187 call feedkeys("otwo\<Esc>", 'xt')
188 w
189 call feedkeys("othree\<Esc>", 'xt')
190 call assert_equal(['one one one', 'two', 'two', 'three'], getline(1, '$'))
191 earlier 1f
192 call assert_equal(['one one one', 'two', 'two'], getline(1, '$'))
193 earlier 1f
194 call assert_equal(['one one one'], getline(1, '$'))
195 earlier 1f
196 call assert_equal([''], getline(1, '$'))
197 later 1f
198 call assert_equal(['one one one'], getline(1, '$'))
199 later 1f
200 call assert_equal(['one one one', 'two', 'two'], getline(1, '$'))
201 later 1f
202 call assert_equal(['one one one', 'two', 'two', 'three'], getline(1, '$'))
203
204 close!
205 call delete('Xtest')
206 bwipe! Xtest
207endfunc
208
209func Test_insert_expr()
210 new
211 " calling setline() triggers undo sync
212 call feedkeys("oa\<Esc>", 'xt')
213 call feedkeys("ob\<Esc>", 'xt')
214 set ul=100
215 call feedkeys("o1\<Esc>a2\<C-R>=setline('.','1234')\<CR>\<CR>\<Esc>", 'x')
216 call assert_equal(['a', 'b', '120', '34'], getline(2, '$'))
217 call feedkeys("u", 'x')
218 call assert_equal(['a', 'b', '12'], getline(2, '$'))
219 call feedkeys("u", 'x')
220 call assert_equal(['a', 'b'], getline(2, '$'))
221
222 call feedkeys("oc\<Esc>", 'xt')
223 set ul=100
224 call feedkeys("o1\<Esc>a2\<C-R>=setline('.','1234')\<CR>\<CR>\<Esc>", 'x')
225 call assert_equal(['a', 'b', 'c', '120', '34'], getline(2, '$'))
226 call feedkeys("u", 'x')
227 call assert_equal(['a', 'b', 'c', '12'], getline(2, '$'))
228
229 call feedkeys("od\<Esc>", 'xt')
230 set ul=100
231 call feedkeys("o1\<Esc>a2\<C-R>=string(123)\<CR>\<Esc>", 'x')
232 call assert_equal(['a', 'b', 'c', '12', 'd', '12123'], getline(2, '$'))
233 call feedkeys("u", 'x')
234 call assert_equal(['a', 'b', 'c', '12', 'd'], getline(2, '$'))
235
236 close!
237endfunc