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annotate src/testdir/test_listener.vim @ 19779:f3162c3ed128 v8.2.0446

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patch 8.2.0446: listener with undo of deleting all lines not tested Commit: https://github.com/vim/vim/commit/a07e31af545b91925362854a48c42fee16dd8c28 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 25 21:13:46 2020 +0100 patch 8.2.0446: listener with undo of deleting all lines not tested Problem: Listener with undo of deleting all lines not tested. Solution: Add a test.
author Bram Moolenaar <Bram@vim.org>
date Wed, 25 Mar 2020 21:15:04 +0100
parents 36ec10251b2b
children 2fb397573541
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 " tests for listener_add() and listener_remove()
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2
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3 func s:StoreList(s, e, a, l)
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4 let s:start = a:s
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5 let s:end = a:e
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6 let s:added = a:a
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7 let s:text = getline(a:s)
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8 let s:list = a:l
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9 endfunc
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10
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11 func s:AnotherStoreList(l)
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12 let s:list2 = a:l
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13 endfunc
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14
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15 func s:EvilStoreList(l)
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16 let s:list3 = a:l
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17 call assert_fails("call add(a:l, 'myitem')", "E742:")
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18 endfunc
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19
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20 func Test_listening()
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21 new
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22 call setline(1, ['one', 'two'])
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23 let s:list = []
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24 let id = listener_add({b, s, e, a, l -> s:StoreList(s, e, a, l)})
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25 call setline(1, 'one one')
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26 call listener_flush()
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27 call assert_equal([{'lnum': 1, 'end': 2, 'col': 1, 'added': 0}], s:list)
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28
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29 " Undo is also a change
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30 set undolevels& " start new undo block
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31 call append(2, 'two two')
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32 undo
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33 call assert_equal([{'lnum': 3, 'end': 3, 'col': 1, 'added': 1}], s:list)
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34 redraw
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35 " the two changes are not merged
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36 call assert_equal([{'lnum': 3, 'end': 4, 'col': 1, 'added': -1}], s:list)
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37 1
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38
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39 " Two listeners, both get called. Also check column.
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40 call setline(1, ['one one', 'two'])
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41 call listener_flush()
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42 let id2 = listener_add({b, s, e, a, l -> s:AnotherStoreList(l)})
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43 let s:list = []
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44 let s:list2 = []
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45 exe "normal $asome\<Esc>"
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46 redraw
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47 call assert_equal([{'lnum': 1, 'end': 2, 'col': 8, 'added': 0}], s:list)
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48 call assert_equal([{'lnum': 1, 'end': 2, 'col': 8, 'added': 0}], s:list2)
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49
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50 " removing listener works
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51 call listener_remove(id2)
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52 call setline(1, ['one one', 'two'])
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53 call listener_flush()
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54 let s:list = []
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55 let s:list2 = []
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56 call setline(3, 'three')
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57 redraw
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58 call assert_equal([{'lnum': 3, 'end': 3, 'col': 1, 'added': 1}], s:list)
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59 call assert_equal([], s:list2)
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60
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61 " a change above a previous change without a line number change is reported
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62 " together
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63 call setline(1, ['one one', 'two'])
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64 call listener_flush(bufnr())
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65 call append(2, 'two two')
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66 call setline(1, 'something')
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67 call bufnr()->listener_flush()
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68 call assert_equal([{'lnum': 3, 'end': 3, 'col': 1, 'added': 1},
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69 \ {'lnum': 1, 'end': 2, 'col': 1, 'added': 0}], s:list)
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70 call assert_equal(1, s:start)
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71 call assert_equal(3, s:end)
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72 call assert_equal(1, s:added)
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73
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74 " an insert just above a previous change that was the last one does not get
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75 " merged
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76 call setline(1, ['one one', 'two'])
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77 call listener_flush()
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78 let s:list = []
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79 call setline(2, 'something')
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80 call append(1, 'two two')
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81 call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': 0}], s:list)
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82 call listener_flush()
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83 call assert_equal([{'lnum': 2, 'end': 2, 'col': 1, 'added': 1}], s:list)
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84
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85 " an insert above a previous change causes a flush
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86 call setline(1, ['one one', 'two'])
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87 call listener_flush()
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88 call setline(2, 'something')
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89 call append(0, 'two two')
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90 call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': 0}], s:list)
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91 call assert_equal('something', s:text)
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92 call listener_flush()
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93 call assert_equal([{'lnum': 1, 'end': 1, 'col': 1, 'added': 1}], s:list)
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94 call assert_equal('two two', s:text)
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95
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96 " a delete at a previous change that was the last one does not get merged
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97 call setline(1, ['one one', 'two'])
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98 call listener_flush()
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99 let s:list = []
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100 call setline(2, 'something')
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101 2del
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102 call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': 0}], s:list)
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103 call listener_flush()
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104 call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': -1}], s:list)
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105
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106 " a delete above a previous change causes a flush
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107 call setline(1, ['one one', 'two'])
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108 call listener_flush()
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109 call setline(2, 'another')
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110 1del
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111 call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': 0}], s:list)
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112 call assert_equal(2, s:start)
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113 call assert_equal('another', s:text)
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114 call listener_flush()
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115 call assert_equal([{'lnum': 1, 'end': 2, 'col': 1, 'added': -1}], s:list)
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116 call assert_equal('another', s:text)
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117
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118 " the "o" command first adds an empty line and then changes it
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119 %del
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120 call setline(1, ['one one', 'two'])
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121 call listener_flush()
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122 let s:list = []
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123 exe "normal Gofour\<Esc>"
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124 redraw
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125 call assert_equal([{'lnum': 3, 'end': 3, 'col': 1, 'added': 1},
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126 \ {'lnum': 3, 'end': 4, 'col': 1, 'added': 0}], s:list)
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127
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128 " Remove last listener
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129 let s:list = []
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130 call listener_remove(id)
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131 call setline(1, 'asdfasdf')
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132 redraw
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133 call assert_equal([], s:list)
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134
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135 " Trying to change the list fails
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136 let id = listener_add({b, s, e, a, l -> s:EvilStoreList(l)})
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137 let s:list3 = []
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138 call setline(1, 'asdfasdf')
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139 redraw
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140 call assert_equal([{'lnum': 1, 'end': 2, 'col': 1, 'added': 0}], s:list3)
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141
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142 eval id->listener_remove()
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143 bwipe!
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144 endfunc
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145
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146 func s:StoreListArgs(buf, start, end, added, list)
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147 let s:buf = a:buf
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148 let s:start = a:start
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149 let s:end = a:end
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150 let s:added = a:added
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151 let s:list = a:list
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152 endfunc
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153
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154 func Test_listener_args()
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155 new
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156 call setline(1, ['one', 'two'])
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157 let s:list = []
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158 let id = listener_add('s:StoreListArgs')
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159
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160 " just one change
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161 call setline(1, 'one one')
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162 call listener_flush()
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163 call assert_equal(bufnr(''), s:buf)
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164 call assert_equal(1, s:start)
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165 call assert_equal(2, s:end)
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166 call assert_equal(0, s:added)
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167 call assert_equal([{'lnum': 1, 'end': 2, 'col': 1, 'added': 0}], s:list)
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168
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169 " two disconnected changes
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170 call setline(1, ['one', 'two', 'three', 'four'])
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171 call listener_flush()
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172 call setline(1, 'one one')
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173 call setline(3, 'three three')
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174 call listener_flush()
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175 call assert_equal(bufnr(''), s:buf)
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176 call assert_equal(1, s:start)
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177 call assert_equal(4, s:end)
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178 call assert_equal(0, s:added)
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179 call assert_equal([{'lnum': 1, 'end': 2, 'col': 1, 'added': 0},
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180 \ {'lnum': 3, 'end': 4, 'col': 1, 'added': 0}], s:list)
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181
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182 " add and remove lines
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183 call setline(1, ['one', 'two', 'three', 'four', 'five', 'six'])
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184 call listener_flush()
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185 call append(2, 'two two')
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186 4del
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187 call append(5, 'five five')
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188 call listener_flush()
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189 call assert_equal(bufnr(''), s:buf)
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190 call assert_equal(3, s:start)
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191 call assert_equal(6, s:end)
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192 call assert_equal(1, s:added)
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193 call assert_equal([{'lnum': 3, 'end': 3, 'col': 1, 'added': 1},
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194 \ {'lnum': 4, 'end': 5, 'col': 1, 'added': -1},
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195 \ {'lnum': 6, 'end': 6, 'col': 1, 'added': 1}], s:list)
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196
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197 " split a line then insert one, should get two disconnected change lists
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198 call setline(1, 'split here')
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199 call listener_flush()
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200 let s:list = []
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201 exe "normal 1ggwi\<CR>\<Esc>"
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202 1
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203 normal o
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204 call assert_equal([{'lnum': 1, 'end': 2, 'col': 7, 'added': 1}], s:list)
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205 call listener_flush()
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206 call assert_equal([{'lnum': 2, 'end': 2, 'col': 1, 'added': 1}], s:list)
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207
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208 call listener_remove(id)
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209 bwipe!
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210 endfunc
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211
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212 func s:StoreBufList(buf, start, end, added, list)
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213 let s:bufnr = a:buf
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214 let s:list = a:list
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215 endfunc
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216
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217 func Test_listening_other_buf()
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218 new
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219 call setline(1, ['one', 'two'])
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220 let bufnr = bufnr('')
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221 normal ww
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222 let id = bufnr->listener_add(function('s:StoreBufList'))
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223 let s:list = []
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224 call setbufline(bufnr, 1, 'hello')
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225 redraw
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226 call assert_equal(bufnr, s:bufnr)
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227 call assert_equal([{'lnum': 1, 'end': 2, 'col': 1, 'added': 0}], s:list)
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228
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229 call listener_remove(id)
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230 exe "buf " .. bufnr
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231 bwipe!
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232 endfunc
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233
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234 func Test_listener_garbage_collect()
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235 func MyListener(x, bufnr, start, end, added, changes)
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236 " NOP
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237 endfunc
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238
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239 new
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240 let id = listener_add(function('MyListener', [{}]), bufnr(''))
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241 call test_garbagecollect_now()
18025
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242 " must not crash caused by invalid memory access
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243 normal ia
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244 call assert_true(v:true)
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245
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246 call listener_remove(id)
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247 delfunc MyListener
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248 bwipe!
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249 endfunc
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250
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251 " This verifies the fix for issue #4455
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252 func Test_listener_caches_buffer_line()
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253 new
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254 inoremap <silent> <CR> <CR><Esc>O
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255
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256 function EchoChanges(bufnr, start, end, added, changes)
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257 for l:change in a:changes
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258 let text = getbufline(a:bufnr, l:change.lnum, l:change.end-1+l:change.added)
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259 endfor
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260 endfunction
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261 let lid = listener_add("EchoChanges")
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262 set autoindent
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263 set cindent
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264
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265 call setline(1, ["{", "\tif true {}", "}"])
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266 exe "normal /{}\nl"
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267 call feedkeys("i\r\e", 'xt')
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268 call assert_equal(["{", "\tif true {", "", "\t}", "}"], getline(1, 5))
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269
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270 bwipe!
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271 delfunc EchoChanges
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272 call listener_remove(lid)
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273 iunmap <CR>
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274 set nocindent
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275 endfunc
18025
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276
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277 " Verify the fix for issue #4908
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278 func Test_listener_undo_line_number()
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279 function DoIt()
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280 " NOP
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281 endfunction
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282 function EchoChanges(bufnr, start, end, added, changes)
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283 call DoIt()
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284 endfunction
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285
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286 new
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287 let lid = listener_add("EchoChanges")
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288 call setline(1, ['a', 'b', 'c'])
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289 set undolevels& " start new undo block
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290 call feedkeys("ggcG\<Esc>", 'xt')
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291 undo
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292
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293 bwipe!
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294 delfunc DoIt
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295 delfunc EchoChanges
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296 call listener_remove(lid)
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297 endfunc
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298
19779
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299 func Test_listener_undo_delete_all()
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300 new
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301 call setline(1, [1, 2, 3, 4])
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302 let s:changes = []
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303 func s:ExtendList(bufnr, start, end, added, changes)
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304 call extend(s:changes, a:changes)
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305 endfunc
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306 let id = listener_add('s:ExtendList')
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307
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308 set undolevels& " start new undo block
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309 normal! ggdG
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310 undo
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311 call listener_flush()
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312 call assert_equal(2, s:changes->len())
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313 " delete removes four lines, empty line remains
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314 call assert_equal({'lnum': 1, 'end': 5, 'col': 1, 'added': -4}, s:changes[0])
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315 " undo replaces empty line and adds 3 lines
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316 call assert_equal({'lnum': 1, 'end': 2, 'col': 1, 'added': 3}, s:changes[1])
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317
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318 call listener_remove(id)
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319 delfunc s:ExtendList
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320 unlet s:changes
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321 bwipe!
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322 endfunc
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323
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324 func Test_listener_cleared_newbuf()
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325 func Listener(bufnr, start, end, added, changes)
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326 let g:gotCalled += 1
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327 endfunc
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328 new
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329 " check that listening works
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330 let g:gotCalled = 0
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331 let lid = listener_add("Listener")
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332 call feedkeys("axxx\<Esc>", 'xt')
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333 call listener_flush(bufnr())
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334 call assert_equal(1, g:gotCalled)
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335 %bwipe!
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336 let bufnr = bufnr()
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337 let b:testing = 123
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338 let lid = listener_add("Listener")
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339 enew!
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340 " check buffer is reused
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341 call assert_equal(bufnr, bufnr())
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342 call assert_false(exists('b:testing'))
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343
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344 " check that listening stops when reusing the buffer
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345 let g:gotCalled = 0
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346 call feedkeys("axxx\<Esc>", 'xt')
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347 call listener_flush(bufnr())
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348 call assert_equal(0, g:gotCalled)
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349 unlet g:gotCalled
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350
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351 bwipe!
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352 delfunc Listener
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353 endfunc
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354
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355 func Test_col_after_deletion_moved_cur()
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356 func Listener(bufnr, start, end, added, changes)
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357 call assert_equal([#{lnum: 1, end: 2, added: 0, col: 2}], a:changes)
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358 endfunc
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359 new
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360 call setline(1, ['foo'])
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361 let lid = listener_add('Listener')
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362 call feedkeys("lD", 'xt')
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363 call listener_flush()
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364 bwipe!
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365 delfunc Listener
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366 endfunc