Mercurial > hg
annotate tests/test-lrucachedict.py @ 39318:c03c5f528e9b
perf: use storage API for resolving manifest node
lookup() isn't part of the storage API. And this code shouldn't
be accessing manifestlog._revlog directly for the modern code base.
So let's port it to the modern API.
Note that the previous code was busted for cases where we needed
to call lookup() because lookup() isn't exposed by manifestrevlog
any more.
This change is strictly BC breaking because we no longer support
resolving partial nodes. But it is a perf* command and I don't
think we should flag the change as such.
Differential Revision: https://phab.mercurial-scm.org/D4390
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Wed, 15 Aug 2018 19:45:39 +0000 |
parents | 79add5a4e857 |
children | 067f7d2c7d60 |
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1 from __future__ import absolute_import, print_function |
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2 |
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3 from mercurial import ( |
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4 util, |
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5 ) |
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7 def printifpresent(d, xs, name='d'): |
18603 | 8 for x in xs: |
9 present = x in d | |
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10 print("'%s' in %s: %s" % (x, name, present)) |
18603 | 11 if present: |
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12 print("%s['%s']: %s" % (name, x, d[x])) |
18603 | 13 |
14 def test_lrucachedict(): | |
15 d = util.lrucachedict(4) | |
16 d['a'] = 'va' | |
17 d['b'] = 'vb' | |
18 d['c'] = 'vc' | |
19 d['d'] = 'vd' | |
20 | |
21 # all of these should be present | |
22 printifpresent(d, ['a', 'b', 'c', 'd']) | |
23 | |
24 # 'a' should be dropped because it was least recently used | |
25 d['e'] = 've' | |
26 printifpresent(d, ['a', 'b', 'c', 'd', 'e']) | |
27 | |
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28 assert d.get('a') is None |
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29 assert d.get('e') == 've' |
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30 |
18603 | 31 # touch entries in some order (get or set). |
32 d['e'] | |
33 d['c'] = 'vc2' | |
34 d['d'] | |
35 d['b'] = 'vb2' | |
36 | |
37 # 'e' should be dropped now | |
38 d['f'] = 'vf' | |
39 printifpresent(d, ['b', 'c', 'd', 'e', 'f']) | |
40 | |
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41 d.clear() |
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42 printifpresent(d, ['b', 'c', 'd', 'e', 'f']) |
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43 |
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44 # Now test dicts that aren't full. |
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45 d = util.lrucachedict(4) |
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46 d['a'] = 1 |
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47 d['b'] = 2 |
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48 d['a'] |
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49 d['b'] |
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50 printifpresent(d, ['a', 'b']) |
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51 |
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52 # test copy method |
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53 d = util.lrucachedict(4) |
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54 d['a'] = 'va3' |
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55 d['b'] = 'vb3' |
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56 d['c'] = 'vc3' |
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57 d['d'] = 'vd3' |
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58 |
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59 dc = d.copy() |
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60 |
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61 # all of these should be present |
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62 print("\nAll of these should be present:") |
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63 printifpresent(dc, ['a', 'b', 'c', 'd'], 'dc') |
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64 |
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65 # 'a' should be dropped because it was least recently used |
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66 print("\nAll of these except 'a' should be present:") |
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67 dc['e'] = 've3' |
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68 printifpresent(dc, ['a', 'b', 'c', 'd', 'e'], 'dc') |
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69 |
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70 # contents and order of original dict should remain unchanged |
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71 print("\nThese should be in reverse alphabetical order and read 'v?3':") |
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72 dc['b'] = 'vb3_new' |
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73 for k in list(iter(d)): |
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74 print("d['%s']: %s" % (k, d[k])) |
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75 |
18603 | 76 if __name__ == '__main__': |
77 test_lrucachedict() |