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annotate rust/hg-core/src/copy_tracing/tests.rs @ 52664:f5091286b10c

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packaging: modernize (compat PEP 517) with less distutils and setup.py calls - setup.py: less distutils imports and setuptools required distutils is deprecated and one should import commands from setuptools to support modern workflows depending on PEP 517 and 518. Moreover, for Python >=3.12, distutils comes from setuptools. It corresponds to old and unmaintain code that do not support PEP 517. The PEP 517 frontends (pip, build, pipx, PDM, UV, etc.) are responsible for creating a venv just for the build. The build dependencies (currently only setuptools) are specified in the pyproject.toml file. Therefore, there is no reason to support building without setuptools. Calling directly setup.py is deprecated and we have to use a PEP 517 frontend. For this commit we use pip with venv. - run-tests.py: install with pip instead of direct call of setup.py Mercurial is then built in an isolated environment. - Makefile: use venv+pip instead of setup.py
author paugier <pierre.augier@univ-grenoble-alpes.fr>
date Wed, 08 Jan 2025 05:07:00 +0100
parents 4c5f6e95df84
children
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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 }