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gerrit.omnirom.org / android_external_vim / 89bcfda6834aba724d12554a34b9ed49f5789fd5 / . / src / testdir / test_undo.vim
blob: e521e354075de4e81aa2415df189561265a99b25 [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('$x', 'xt')
98 call feedkeys('x', 'xt')
99 call feedkeys('x', 'xt')
100 call assert_equal('123-', getline(1))
101 call test_settime(101)
102
103 call BackOne('123-4')
104 call BackOne('123-45')
105 " skips '123-456' because it's older
106 call BackOne('-456')
107 call BackOne('3-456')
108 call BackOne('23-456')
109 call BackOne('123-456')
110 call assert_fails("BackOne('123-456')")
111 normal 10g+
112 call assert_equal('123-', getline(1))
113
114 :" Jump two seconds and go some seconds forward and backward
115 call test_settime(103)
116 call feedkeys("Aa\<Esc>", 'xt')
117 call feedkeys("Ab\<Esc>", 'xt')
118 call feedkeys("Ac\<Esc>", 'xt')
119 call assert_equal('123-abc', getline(1))
120 earlier 1s
121 call assert_equal('123-', getline(1))
122 earlier 3s
123 call assert_equal('123-456', getline(1))
124 later 1s
125 call assert_equal('123-', getline(1))
126 later 1h
127 call assert_equal('123-abc', getline(1))
128
129 close!
130endfunc
131
132func Test_undojoin()
133 new
134 call feedkeys("Goaaaa\<Esc>", 'xt')
135 call feedkeys("obbbb\<Esc>", 'xt')
136 call assert_equal(['aaaa', 'bbbb'], getline(2, '$'))
137 call feedkeys("u", 'xt')
138 call assert_equal(['aaaa'], getline(2, '$'))
139 call feedkeys("obbbb\<Esc>", 'xt')
140 undojoin
141 " Note: next change must not be as if typed
142 call feedkeys("occcc\<Esc>", 'x')
143 call assert_equal(['aaaa', 'bbbb', 'cccc'], getline(2, '$'))
144 call feedkeys("u", 'xt')
145 call assert_equal(['aaaa'], getline(2, '$'))
146 close!
147endfunc
148
149func Test_undo_write()
150 split Xtest
151 call feedkeys("ione one one\<Esc>", 'xt')
152 w!
153 call feedkeys("otwo\<Esc>", 'xt')
154 call feedkeys("otwo\<Esc>", 'xt')
155 w
156 call feedkeys("othree\<Esc>", 'xt')
157 call assert_equal(['one one one', 'two', 'two', 'three'], getline(1, '$'))
158 earlier 1f
159 call assert_equal(['one one one', 'two', 'two'], getline(1, '$'))
160 earlier 1f
161 call assert_equal(['one one one'], getline(1, '$'))
162 earlier 1f
163 call assert_equal([''], getline(1, '$'))
164 later 1f
165 call assert_equal(['one one one'], getline(1, '$'))
166 later 1f
167 call assert_equal(['one one one', 'two', 'two'], getline(1, '$'))
168 later 1f
169 call assert_equal(['one one one', 'two', 'two', 'three'], getline(1, '$'))
170
171 close!
172 call delete('Xtest')
173 bwipe! Xtest
174endfunc
175
176func Test_insert_expr()
177 new
178 " calling setline() triggers undo sync
179 call feedkeys("oa\<Esc>", 'xt')
180 call feedkeys("ob\<Esc>", 'xt')
181 set ul=100
182 call feedkeys("o1\<Esc>a2\<C-R>=setline('.','1234')\<CR>\<CR>\<Esc>", 'x')
183 call assert_equal(['a', 'b', '120', '34'], getline(2, '$'))
184 call feedkeys("u", 'x')
185 call assert_equal(['a', 'b', '12'], getline(2, '$'))
186 call feedkeys("u", 'x')
187 call assert_equal(['a', 'b'], getline(2, '$'))
188
189 call feedkeys("oc\<Esc>", 'xt')
190 set ul=100
191 call feedkeys("o1\<Esc>a2\<C-R>=setline('.','1234')\<CR>\<CR>\<Esc>", 'x')
192 call assert_equal(['a', 'b', 'c', '120', '34'], getline(2, '$'))
193 call feedkeys("u", 'x')
194 call assert_equal(['a', 'b', 'c', '12'], getline(2, '$'))
195
196 call feedkeys("od\<Esc>", 'xt')
197 set ul=100
198 call feedkeys("o1\<Esc>a2\<C-R>=string(123)\<CR>\<Esc>", 'x')
199 call assert_equal(['a', 'b', 'c', '12', 'd', '12123'], getline(2, '$'))
200 call feedkeys("u", 'x')
201 call assert_equal(['a', 'b', 'c', '12', 'd'], getline(2, '$'))
202
203 close!
204endfunc