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annotate src/testdir/test_filter_map.vim @ 20550:09143ab0fbbd v8.2.0829

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patch 8.2.0829: filter() may give misleading error message Commit: https://github.com/vim/vim/commit/fcb0b61d15f66f0e9116a6bc56d9d8105bb913cf Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 26 20:22:01 2020 +0200 patch 8.2.0829: filter() may give misleading error message Problem: filter() may give misleading error message. Solution: Also mention Blob as an allowed argument.
author Bram Moolenaar <Bram@vim.org>
date Tue, 26 May 2020 20:30:06 +0200
parents 94f05de75e9f
children 46956b6811a1
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1 " Test filter() and map()
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3 " list with expression string
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4 func Test_filter_map_list_expr_string()
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5 " filter()
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6 call assert_equal([2, 3, 4], filter([1, 2, 3, 4], 'v:val > 1'))
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7 call assert_equal([3, 4], filter([1, 2, 3, 4], 'v:key > 1'))
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8 call assert_equal([], filter([1, 2, 3, 4], 0))
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10 " map()
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11 call assert_equal([2, 4, 6, 8], map([1, 2, 3, 4], 'v:val * 2'))
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12 call assert_equal([0, 2, 4, 6], map([1, 2, 3, 4], 'v:key * 2'))
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13 call assert_equal([9, 9, 9, 9], map([1, 2, 3, 4], 9))
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14 endfunc
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16 " dict with expression string
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17 func Test_filter_map_dict_expr_string()
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18 let dict = {"foo": 1, "bar": 2, "baz": 3}
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20 " filter()
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21 call assert_equal({"bar": 2, "baz": 3}, filter(copy(dict), 'v:val > 1'))
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22 call assert_equal({"foo": 1, "baz": 3}, filter(copy(dict), 'v:key > "bar"'))
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23 call assert_equal({}, filter(copy(dict), 0))
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25 " map()
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26 call assert_equal({"foo": 2, "bar": 4, "baz": 6}, map(copy(dict), 'v:val * 2'))
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27 call assert_equal({"foo": "f", "bar": "b", "baz": "b"}, map(copy(dict), 'v:key[0]'))
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28 call assert_equal({"foo": 9, "bar": 9, "baz": 9}, map(copy(dict), 9))
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29 endfunc
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31 " list with funcref
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32 func Test_filter_map_list_expr_funcref()
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33 " filter()
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34 func! s:filter1(index, val) abort
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35 return a:val > 1
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36 endfunc
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37 call assert_equal([2, 3, 4], filter([1, 2, 3, 4], function('s:filter1')))
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39 func! s:filter2(index, val) abort
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40 return a:index > 1
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41 endfunc
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42 call assert_equal([3, 4], filter([1, 2, 3, 4], function('s:filter2')))
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44 " map()
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45 func! s:filter3(index, val) abort
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46 return a:val * 2
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47 endfunc
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48 call assert_equal([2, 4, 6, 8], map([1, 2, 3, 4], function('s:filter3')))
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50 func! s:filter4(index, val) abort
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51 return a:index * 2
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52 endfunc
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53 call assert_equal([0, 2, 4, 6], map([1, 2, 3, 4], function('s:filter4')))
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54 endfunc
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55
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56 func Test_filter_map_nested()
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57 let x = {"x":10}
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58 let r = map(range(2), 'filter(copy(x), "1")')
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59 call assert_equal([x, x], r)
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60
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61 let r = map(copy(x), 'filter(copy(x), "1")')
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62 call assert_equal({"x": x}, r)
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63 endfunc
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64
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65 " dict with funcref
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66 func Test_filter_map_dict_expr_funcref()
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67 let dict = {"foo": 1, "bar": 2, "baz": 3}
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69 " filter()
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70 func! s:filter1(key, val) abort
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71 return a:val > 1
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72 endfunc
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73 call assert_equal({"bar": 2, "baz": 3}, filter(copy(dict), function('s:filter1')))
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75 func! s:filter2(key, val) abort
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76 return a:key > "bar"
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77 endfunc
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78 call assert_equal({"foo": 1, "baz": 3}, filter(copy(dict), function('s:filter2')))
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80 " map()
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81 func! s:filter3(key, val) abort
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82 return a:val * 2
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83 endfunc
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84 call assert_equal({"foo": 2, "bar": 4, "baz": 6}, map(copy(dict), function('s:filter3')))
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86 func! s:filter4(key, val) abort
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87 return a:key[0]
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88 endfunc
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89 call assert_equal({"foo": "f", "bar": "b", "baz": "b"}, map(copy(dict), function('s:filter4')))
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90 endfunc
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92 func Test_map_filter_fails()
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93 call assert_fails('call map([1], "42 +")', 'E15:')
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94 call assert_fails('call filter([1], "42 +")', 'E15:')
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95 call assert_fails("let l = map('abc', '\"> \" . v:val')", 'E896:')
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96 call assert_fails("let l = filter('abc', '\"> \" . v:val')", 'E896:')
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97 call assert_fails("let l = filter([1, 2, 3], '{}')", 'E728:')
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98 call assert_fails("let l = filter({'k' : 10}, '{}')", 'E728:')
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99 call assert_fails("let l = filter([1, 2], {})", 'E731:')
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100 call assert_equal(0, filter(test_null_list(), 0))
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101 call assert_equal(0, filter(test_null_dict(), 0))
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102 call assert_equal(0, map(test_null_list(), '"> " .. v:val'))
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103 call assert_equal(0, map(test_null_dict(), '"> " .. v:val'))
20156
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104 call assert_equal([1, 2, 3], filter([1, 2, 3], test_null_function()))
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105 call assert_fails("let l = filter([1, 2], function('min'))", 'E118:')
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diff changeset
106 call assert_equal([1, 2, 3], filter([1, 2, 3], test_null_partial()))
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107 call assert_fails("let l = filter([1, 2], {a, b, c -> 1})", 'E119:')
15478
051937ebaf22 patch 8.1.0747: map() with a bad expression doesn't give an error
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parents: 9442
diff changeset
108 endfunc
19233
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parents: 17944
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109
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110 func Test_map_and_modify()
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111 let l = ["abc"]
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parents: 17944
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112 " cannot change the list halfway a map()
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diff changeset
113 call assert_fails('call map(l, "remove(l, 0)[0]")', 'E741:')
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parents: 17944
diff changeset
114
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diff changeset
115 let d = #{a: 1, b: 2, c: 3}
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diff changeset
116 call assert_fails('call map(d, "remove(d, v:key)[0]")', 'E741:')
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parents: 17944
diff changeset
117 call assert_fails('echo map(d, {k,v -> remove(d, k)})', 'E741:')
04c164c971a3 patch 8.2.0175: crash when removing list element in map()
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parents: 17944
diff changeset
118 endfunc
20109
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diff changeset
119
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diff changeset
120 " vim: shiftwidth=2 sts=2 expandtab