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annotate src/testdir/test_buffer.vim @ 19783:546bdeef35f1 v8.2.0448

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patch 8.2.0448: various functions not properly tested Commit: https://github.com/vim/vim/commit/0e05de46226eb4e5ea580beefa71831f92d613d3 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 25 22:23:46 2020 +0100 patch 8.2.0448: various functions not properly tested Problem: Various functions not properly tested. Solution: Add more tests, especially for failures. (Yegappan Lakshmanan, closes #5843)
author Bram Moolenaar <Bram@vim.org>
date Wed, 25 Mar 2020 22:30:04 +0100
parents a653d1a165ef
children 3601e816a569
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1 " Tests for Vim buffer
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2
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3 " Test for the :bunload command with an offset
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4 func Test_bunload_with_offset()
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5 %bwipe!
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6 call writefile(['B1'], 'b1')
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7 call writefile(['B2'], 'b2')
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8 call writefile(['B3'], 'b3')
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9 call writefile(['B4'], 'b4')
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10
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11 " Load four buffers. Unload the second and third buffers and then
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12 " execute .+3bunload to unload the last buffer.
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13 edit b1
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14 new b2
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15 new b3
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16 new b4
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17
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18 bunload b2
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19 bunload b3
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20 exe bufwinnr('b1') . 'wincmd w'
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21 .+3bunload
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22 call assert_equal(0, getbufinfo('b4')[0].loaded)
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23 call assert_equal('b1',
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24 \ fnamemodify(getbufinfo({'bufloaded' : 1})[0].name, ':t'))
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25
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26 " Load four buffers. Unload the third and fourth buffers. Execute .+3bunload
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27 " and check whether the second buffer is unloaded.
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28 ball
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29 bunload b3
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30 bunload b4
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31 exe bufwinnr('b1') . 'wincmd w'
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32 .+3bunload
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33 call assert_equal(0, getbufinfo('b2')[0].loaded)
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34 call assert_equal('b1',
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35 \ fnamemodify(getbufinfo({'bufloaded' : 1})[0].name, ':t'))
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36
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37 " Load four buffers. Unload the second and third buffers and from the last
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38 " buffer execute .-3bunload to unload the first buffer.
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39 ball
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40 bunload b2
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41 bunload b3
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42 exe bufwinnr('b4') . 'wincmd w'
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43 .-3bunload
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44 call assert_equal(0, getbufinfo('b1')[0].loaded)
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45 call assert_equal('b4',
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46 \ fnamemodify(getbufinfo({'bufloaded' : 1})[0].name, ':t'))
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47
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48 " Load four buffers. Unload the first and second buffers. Execute .-3bunload
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49 " from the last buffer and check whether the third buffer is unloaded.
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50 ball
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51 bunload b1
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52 bunload b2
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53 exe bufwinnr('b4') . 'wincmd w'
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54 .-3bunload
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55 call assert_equal(0, getbufinfo('b3')[0].loaded)
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56 call assert_equal('b4',
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57 \ fnamemodify(getbufinfo({'bufloaded' : 1})[0].name, ':t'))
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58
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59 %bwipe!
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60 call delete('b1')
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61 call delete('b2')
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62 call delete('b3')
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63 call delete('b4')
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64
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65 call assert_fails('1,4bunload', 'E16:')
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66 call assert_fails(',100bunload', 'E16:')
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67
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68 " Use a try-catch for this test. When assert_fails() is used for this
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69 " test, the command fails with E515: instead of E90:
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70 let caught_E90 = 0
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71 try
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72 $bunload
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73 catch /E90:/
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74 let caught_E90 = 1
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75 endtry
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76 call assert_equal(1, caught_E90)
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77 call assert_fails('$bunload', 'E515:')
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78 endfunc
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79
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80 " Test for :buffer, :bnext, :bprevious, :brewind, :blast and :bmodified
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81 " commands
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82 func Test_buflist_browse()
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83 %bwipe!
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84 call assert_fails('buffer 1000', 'E86:')
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85
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86 call writefile(['foo1', 'foo2', 'foo3', 'foo4'], 'Xfile1')
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87 call writefile(['bar1', 'bar2', 'bar3', 'bar4'], 'Xfile2')
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88 call writefile(['baz1', 'baz2', 'baz3', 'baz4'], 'Xfile3')
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89 edit Xfile1
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90 let b1 = bufnr()
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91 edit Xfile2
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92 let b2 = bufnr()
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93 edit +/baz4 Xfile3
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94 let b3 = bufnr()
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95
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96 call assert_fails('buffer ' .. b1 .. ' abc', 'E488:')
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97 call assert_equal(b3, bufnr())
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98 call assert_equal(4, line('.'))
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99 exe 'buffer +/bar2 ' .. b2
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100 call assert_equal(b2, bufnr())
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101 call assert_equal(2, line('.'))
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102 exe 'buffer +/bar1'
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103 call assert_equal(b2, bufnr())
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104 call assert_equal(1, line('.'))
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105
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106 brewind +
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107 call assert_equal(b1, bufnr())
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108 call assert_equal(4, line('.'))
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109
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110 blast +/baz2
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111 call assert_equal(b3, bufnr())
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112 call assert_equal(2, line('.'))
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113
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114 bprevious +/bar4
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115 call assert_equal(b2, bufnr())
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116 call assert_equal(4, line('.'))
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117
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118 bnext +/baz3
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119 call assert_equal(b3, bufnr())
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120 call assert_equal(3, line('.'))
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121
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122 call assert_fails('bmodified', 'E84:')
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123 call setbufvar(b2, '&modified', 1)
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124 exe 'bmodified +/bar3'
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125 call assert_equal(b2, bufnr())
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126 call assert_equal(3, line('.'))
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127
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128 " With no listed buffers in the list, :bnext and :bprev should fail
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129 %bwipe!
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130 set nobuflisted
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131 call assert_fails('bnext', 'E85:')
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132 call assert_fails('bprev', 'E85:')
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133 set buflisted
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134
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135 call assert_fails('sandbox bnext', 'E48:')
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136
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137 call delete('Xfile1')
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138 call delete('Xfile2')
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139 call delete('Xfile3')
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140 %bwipe!
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141 endfunc
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142
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143 " Test for :bdelete
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144 func Test_bdelete_cmd()
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145 %bwipe!
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146 call assert_fails('bdelete 5', 'E516:')
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147 call assert_fails('1,1bdelete 1 2', 'E488:')
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148
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149 " Deleting a unlisted and unloaded buffer
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150 edit Xfile1
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151 let bnr = bufnr()
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152 set nobuflisted
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153 enew
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154 call assert_fails('bdelete ' .. bnr, 'E516:')
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155 %bwipe!
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156 endfunc
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157
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158 " vim: shiftwidth=2 sts=2 expandtab