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annotate rust/hg-core/src/testing.rs @ 48546:e91aa800ae5b

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rhg: desambiguate status without decompressing filelog if possible When status is unsure based on `stat()` and the dirstate if a file is clean or modified, we need to compare it against the filelog. This comparison can skip looking at contents if the lengths differ. This changeset optimize this further to deduce what we can about the length if the filelog without decompressing it or resolving deltas. Differential Revision: https://phab.mercurial-scm.org/D11965
author Simon Sapin <simon.sapin@octobus.net>
date Fri, 07 Jan 2022 14:40:21 +0100
parents 168041fa6d5f
children 4c5f6e95df84
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // testing.rs
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2 //
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3 // Copyright 2018 Georges Racinet <georges.racinet@octobus.net>
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4 //
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5 // This software may be used and distributed according to the terms of the
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6 // GNU General Public License version 2 or any later version.
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7
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8 use crate::{Graph, GraphError, Revision, NULL_REVISION};
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9
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10 /// A stub `Graph`, same as the one from `test-ancestor.py`
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11 ///
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12 /// o 13
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13 /// |
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14 /// | o 12
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15 /// | |
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16 /// | | o 11
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17 /// | | |\
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18 /// | | | | o 10
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19 /// | | | | |
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20 /// | o---+ | 9
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21 /// | | | | |
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22 /// o | | | | 8
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23 /// / / / /
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24 /// | | o | 7
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25 /// | | | |
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26 /// o---+ | 6
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27 /// / / /
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28 /// | | o 5
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29 /// | |/
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30 /// | o 4
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31 /// | |
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32 /// o | 3
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33 /// | |
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34 /// | o 2
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35 /// |/
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36 /// o 1
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37 /// |
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38 /// o 0
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39 #[derive(Clone, Debug)]
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40 pub struct SampleGraph;
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41
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42 impl Graph for SampleGraph {
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43 fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> {
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44 match rev {
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45 0 => Ok([NULL_REVISION, NULL_REVISION]),
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46 1 => Ok([0, NULL_REVISION]),
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47 2 => Ok([1, NULL_REVISION]),
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48 3 => Ok([1, NULL_REVISION]),
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49 4 => Ok([2, NULL_REVISION]),
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50 5 => Ok([4, NULL_REVISION]),
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51 6 => Ok([4, NULL_REVISION]),
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52 7 => Ok([4, NULL_REVISION]),
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53 8 => Ok([NULL_REVISION, NULL_REVISION]),
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54 9 => Ok([6, 7]),
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55 10 => Ok([5, NULL_REVISION]),
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56 11 => Ok([3, 7]),
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57 12 => Ok([9, NULL_REVISION]),
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58 13 => Ok([8, NULL_REVISION]),
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59 r => Err(GraphError::ParentOutOfRange(r)),
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60 }
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61 }
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62 }
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63
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64 // A Graph represented by a vector whose indices are revisions
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65 // and values are parents of the revisions
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66 pub type VecGraph = Vec<[Revision; 2]>;
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67
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68 impl Graph for VecGraph {
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69 fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> {
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70 Ok(self[rev as usize])
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71 }
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72 }