Mercurial > hg > mercurial-crew-with-dirclash
annotate tests/README @ 2577:fa76c5d609c9
bdiff: improve worst case behavior by 100x.
on 5.8MB (244.000 lines) text file with similar lines, hash before
this change made diff against empty file take 75 seconds. this change
improves performance to 0.6 seconds. result is that clone of smallish
repo (137MB) with some files like this takes 1 minute instead of 10
minutes.
common case of diff is 10% slower now, probably because of worse cache
locality. but diff does not affect overall performance in common case
(less than 1% of runtime is in diff when it is working ok), so this
tradeoff looks good.
author | Vadim Gelfer <vadim.gelfer@gmail.com> |
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date | Fri, 07 Jul 2006 15:02:55 -0700 |
parents | e506c14382fd |
children | 1c66aad252f9 |
rev | line source |
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331 | 1 A simple testing framework |
2 | |
332 | 3 To run the tests, do: |
4 | |
5 cd tests/ | |
2207
8a2a7f7d9df6
Delete the shell version of run-tests
Stephen Darnell <stephen@darnell.plus.com>
parents:
1933
diff
changeset
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6 python run-tests.py |
332 | 7 |
331 | 8 This finds all scripts in the test directory named test-* and executes |
9 them. The scripts can be either shell scripts or Python. Each test is | |
10 run in a temporary directory that is removed when the test is complete. | |
11 | |
12 A test-<x> succeeds if the script returns success and its output | |
13 matches test-<x>.out. If the new output doesn't match, it is stored in | |
14 test-<x>.err. | |
15 | |
16 There are some tricky points here that you should be aware of when | |
17 writing tests: | |
18 | |
2283
e506c14382fd
deprecate 'update -m'. use 'merge' instead.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2207
diff
changeset
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19 - hg commit and hg merge want user interaction |
331 | 20 |
761
0fb498458905
Change all references to -t --text commit message to -m and --message.
Andrew Thompson <andrewkt@aktzero.com>
parents:
350
diff
changeset
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21 for commit use -m "text" |
2283
e506c14382fd
deprecate 'update -m'. use 'merge' instead.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2207
diff
changeset
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22 for hg merge, set HGMERGE to something noninteractive (like true or merge) |
331 | 23 |
24 - changeset hashes will change based on user and date which make | |
25 things like hg history output change | |
26 | |
1933
7544700fd931
Use 'hg ci -d "1000000 0"' in tests to circumvent problem with leading zero.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
814
diff
changeset
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27 use commit -m "test" -u test -d "1000000 0" |
331 | 28 |
29 - diff will show the current time | |
30 | |
799
583e290e4945
Adapted README to new needs.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
793
diff
changeset
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31 use hg diff | sed "s/\(\(---\|+++\) [a-zA-Z0-9_/.-]*\).*/\1/" to strip |
774
6592c4f5cd4f
Change sed patterns in tests to strip dates after spaces or tabs
mpm@selenic.com
parents:
761
diff
changeset
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32 dates |
331 | 33 |