Mercurial > public > mercurial-scm > hg
annotate rust/hg-core/src/copy_tracing/tests.rs @ 52760:94e2547e6f3d
rust: move code from utils to utils::strings
This moves string-related functions in hg::utils into the recently added
hg::utils::strings module.
author | Mitchell Kember <mkember@janestreet.com> |
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date | Thu, 16 Jan 2025 13:15:02 -0500 |
parents | 4c5f6e95df84 |
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rev | line source |
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1 use super::*; |
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2 |
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3 /// Shorthand to reduce boilerplate when creating [`Revision`] for testing |
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4 macro_rules! R { |
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5 ($revision:literal) => { |
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6 Revision($revision) |
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7 }; |
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8 } |
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9 |
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10 /// Unit tests for: |
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11 /// |
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12 /// ```ignore |
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13 /// fn compare_value( |
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14 /// current_merge: Revision, |
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15 /// merge_case_for_dest: impl Fn() -> MergeCase, |
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16 /// src_minor: &CopySource, |
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17 /// src_major: &CopySource, |
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18 /// ) -> (MergePick, /* overwrite: */ bool) |
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19 /// ``` |
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20 #[test] |
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21 fn test_compare_value() { |
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22 // The `compare_value!` macro calls the `compare_value` function with |
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23 // arguments given in pseudo-syntax: |
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24 // |
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25 // * For `merge_case_for_dest` it takes a plain `MergeCase` value instead |
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26 // of a closure. |
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27 // * `CopySource` values are represented as `(rev, path, overwritten)` |
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28 // tuples of type `(Revision, Option<PathToken>, OrdSet<Revision>)`. |
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29 // * `PathToken` is an integer not read by `compare_value`. It only checks |
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30 // for `Some(_)` indicating a file copy v.s. `None` for a file deletion. |
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31 // * `OrdSet<Revision>` is represented as a Python-like set literal. |
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32 |
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33 use MergeCase::*; |
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34 use MergePick::*; |
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35 |
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36 assert_eq!( |
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37 compare_value!( |
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38 R!(1), |
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39 Normal, |
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40 (R!(1), None, { R!(1) }), |
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41 (R!(1), None, { R!(1) }) |
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42 ), |
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43 (Any, false) |
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44 ); |
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45 } |
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46 |
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47 /// Unit tests for: |
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48 /// |
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49 /// ```ignore |
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50 /// fn merge_copies_dict( |
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51 /// path_map: &TwoWayPathMap, // Not visible in test cases |
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52 /// current_merge: Revision, |
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53 /// minor: InternalPathCopies, |
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54 /// major: InternalPathCopies, |
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55 /// get_merge_case: impl Fn(&HgPath) -> MergeCase + Copy, |
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56 /// ) -> InternalPathCopies |
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57 /// ``` |
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58 #[test] |
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59 fn test_merge_copies_dict() { |
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60 // The `merge_copies_dict!` macro calls the `merge_copies_dict` function |
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61 // with arguments given in pseudo-syntax: |
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62 // |
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63 // * `TwoWayPathMap` and path tokenization are implicitly taken care of. |
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64 // All paths are given as string literals. |
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65 // * Key-value maps are represented with `{key1 => value1, key2 => value2}` |
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66 // pseudo-syntax. |
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67 // * `InternalPathCopies` is a map of copy destination path keys to |
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68 // `CopySource` values. |
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69 // - `CopySource` is represented as a `(rev, source_path, overwritten)` |
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70 // tuple of type `(Revision, Option<Path>, OrdSet<Revision>)`. |
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71 // - Unlike in `test_compare_value`, source paths are string literals. |
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72 // - `OrdSet<Revision>` is again represented as a Python-like set |
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73 // literal. |
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74 // * `get_merge_case` is represented as a map of copy destination path to |
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75 // `MergeCase`. The default for paths not in the map is |
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76 // `MergeCase::Normal`. |
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77 // |
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78 // `internal_path_copies!` creates an `InternalPathCopies` value with the |
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79 // same pseudo-syntax as in `merge_copies_dict!`. |
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80 |
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81 use MergeCase::*; |
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82 |
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83 assert_eq!( |
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84 merge_copies_dict!( |
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85 R!(1), |
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86 {"foo" => (R!(1), None, {})}, |
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87 {}, |
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88 {"foo" => Merged} |
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89 ), |
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90 internal_path_copies!("foo" => (R!(1), None, {})) |
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91 ); |
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92 } |
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93 |
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94 /// Unit tests for: |
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95 /// |
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96 /// ```ignore |
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97 /// impl CombineChangesetCopies { |
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98 /// fn new(children_count: HashMap<Revision, usize>) -> Self |
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99 /// |
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100 /// // Called repeatedly: |
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101 /// fn add_revision_inner<'a>( |
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102 /// &mut self, |
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103 /// rev: Revision, |
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104 /// p1: Revision, |
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105 /// p2: Revision, |
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106 /// copy_actions: impl Iterator<Item = Action<'a>>, |
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107 /// get_merge_case: impl Fn(&HgPath) -> MergeCase + Copy, |
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108 /// ) |
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109 /// |
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110 /// fn finish(mut self, target_rev: Revision) -> PathCopies |
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111 /// } |
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112 /// ``` |
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113 #[test] |
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114 fn test_combine_changeset_copies() { |
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115 // `combine_changeset_copies!` creates a `CombineChangesetCopies` with |
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116 // `new`, then calls `add_revision_inner` repeatedly, then calls `finish` |
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117 // for its return value. |
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118 // |
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119 // All paths given as string literals. |
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120 // |
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121 // * Key-value maps are represented with `{key1 => value1, key2 => value2}` |
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122 // pseudo-syntax. |
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123 // * `children_count` is a map of revision numbers to count of children in |
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124 // the DAG. It includes all revisions that should be considered by the |
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125 // algorithm. |
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126 // * Calls to `add_revision_inner` are represented as an array of anonymous |
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127 // structs with named fields, one pseudo-struct per call. |
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128 // |
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129 // `path_copies!` creates a `PathCopies` value, a map of copy destination |
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130 // keys to copy source values. Note: the arrows for map literal syntax |
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131 // point **backwards** compared to the logical direction of copy! |
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132 |
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133 use crate::revlog::NULL_REVISION as NULL; |
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134 use Action::*; |
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135 use MergeCase::*; |
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136 |
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137 assert_eq!( |
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138 combine_changeset_copies!( |
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139 { R!(1) => 1, R!(2) => 1 }, |
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140 [ |
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141 { |
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142 rev: R!(1), |
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143 p1: NULL, |
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144 p2: NULL, |
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145 actions: [], |
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146 merge_cases: {}, |
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147 }, |
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148 { |
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149 rev: R!(2), |
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150 p1: NULL, |
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151 p2: NULL, |
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152 actions: [], |
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153 merge_cases: {}, |
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154 }, |
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155 { |
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156 rev: R!(3), p1: R!(1), p2: R!(2), |
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157 actions: [CopiedFromP1("destination.txt", "source.txt")], |
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158 merge_cases: {"destination.txt" => Merged}, |
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159 }, |
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160 ], |
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161 R!(3), |
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162 ), |
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163 path_copies!("destination.txt" => "source.txt") |
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164 ); |
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165 } |