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run-tests: mechanism to report exceptions during test execution...
run-tests: mechanism to report exceptions during test execution Sometimes when running tests you introduce a ton of exceptions. The most extreme example of this is running Mercurial with Python 3, which currently spews thousands of exceptions when running the test harness. This commit adds an opt-in feature to run-tests.py to aggregate exceptions encountered by `hg` when running tests. When --exceptions is used, the test harness enables the "logexceptions" extension in the test environment. This extension wraps the Mercurial function to handle exceptions and writes information about the exception to a random filename in a directory defined by the test harness via an environment variable. At the end of the test harness, these files are parsed, aggregated, and a list of all unique Mercurial frames triggering exceptions is printed in order of frequency. This feature is intended to aid Python 3 development. I've only really tested it on Python 3. There is no shortage of improvements that could be made. e.g. we could write a separate file containing the exception report - maybe even an HTML report. We also don't capture which tests demonstrate the exceptions, so there's no turnkey way to test whether a code change made an exception disappear. Perfect is the enemy of good. I think the current patch is useful enough to land. Whoever uses it can send patches to imprve its usefulness. Differential Revision: https://phab.mercurial-scm.org/D1477

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r35164:ee64e677 merge default
r35191:bd8875b6 default
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test-setdiscovery.t
413 lines | 12.2 KiB | text/troff | Tads3Lexer
Function to test discovery between two repos in both directions, using both the local shortcut
(which is currently not activated by default) and the full remotable protocol:
$ testdesc() { # revs_a, revs_b, dagdesc
> if [ -d foo ]; then rm -rf foo; fi
> hg init foo
> cd foo
> hg debugbuilddag "$3"
> hg clone . a $1 --quiet
> hg clone . b $2 --quiet
> echo
> echo "% -- a -> b tree"
> hg -R a debugdiscovery b --verbose --old
> echo
> echo "% -- a -> b set"
> hg -R a debugdiscovery b --verbose --debug --config progress.debug=true
> echo
> echo "% -- b -> a tree"
> hg -R b debugdiscovery a --verbose --old
> echo
> echo "% -- b -> a set"
> hg -R b debugdiscovery a --verbose --debug --config progress.debug=true
> cd ..
> }
Small superset:
$ testdesc '-ra1 -ra2' '-rb1 -rb2 -rb3' '
> +2:f +1:a1:b1
> <f +4 :a2
> +5 :b2
> <f +3 :b3'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 01241442b3c2 66f7d451a68b b5714e113bc0
common heads: 01241442b3c2 b5714e113bc0
local is subset
% -- a -> b set
comparing with b
query 1; heads
searching for changes
all local heads known remotely
common heads: 01241442b3c2 b5714e113bc0
local is subset
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 01241442b3c2 b5714e113bc0
common heads: 01241442b3c2 b5714e113bc0
remote is subset
% -- b -> a set
comparing with a
query 1; heads
searching for changes
all remote heads known locally
common heads: 01241442b3c2 b5714e113bc0
remote is subset
Many new:
$ testdesc '-ra1 -ra2' '-rb' '
> +2:f +3:a1 +3:b
> <f +30 :a2'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: bebd167eb94d
common heads: bebd167eb94d
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
common heads: bebd167eb94d
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b bebd167eb94d
common heads: bebd167eb94d
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 2, sample size is: 2
2 total queries in *.????s (glob)
common heads: bebd167eb94d
Both sides many new with stub:
$ testdesc '-ra1 -ra2' '-rb' '
> +2:f +2:a1 +30 :b
> <f +30 :a2'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 2dc09a01254d
common heads: 2dc09a01254d
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
common heads: 2dc09a01254d
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 2dc09a01254d 66f7d451a68b
common heads: 2dc09a01254d
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
common heads: 2dc09a01254d
Both many new:
$ testdesc '-ra' '-rb' '
> +2:f +30 :b
> <f +30 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 66f7d451a68b
common heads: 66f7d451a68b
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b
common heads: 66f7d451a68b
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
common heads: 66f7d451a68b
Both many new skewed:
$ testdesc '-ra' '-rb' '
> +2:f +30 :b
> <f +50 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 66f7d451a68b
common heads: 66f7d451a68b
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 51, sample size is: 51
2 total queries in *.????s (glob)
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b
common heads: 66f7d451a68b
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
common heads: 66f7d451a68b
Both many new on top of long history:
$ testdesc '-ra' '-rb' '
> +1000:f +30 :b
> <f +50 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 7ead0cba2838
common heads: 7ead0cba2838
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1049, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 31, sample size is: 31
3 total queries in *.????s (glob)
common heads: 7ead0cba2838
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 7ead0cba2838
common heads: 7ead0cba2838
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1029, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 15, sample size is: 15
3 total queries in *.????s (glob)
common heads: 7ead0cba2838
One with >200 heads, which used to use up all of the sample:
$ hg init manyheads
$ cd manyheads
$ echo "+300:r @a" >dagdesc
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "@b *r+3" >>dagdesc # one more head
$ hg debugbuilddag <dagdesc
reading DAG from stdin
$ hg heads -t --template . | wc -c
\s*261 (re)
$ hg clone -b a . a
adding changesets
adding manifests
adding file changes
added 1340 changesets with 0 changes to 0 files (+259 heads)
new changesets 1ea73414a91b:1c51e2c80832
updating to branch a
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone -b b . b
adding changesets
adding manifests
adding file changes
added 304 changesets with 0 changes to 0 files
new changesets 1ea73414a91b:513314ca8b3a
updating to branch b
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R a debugdiscovery b --debug --verbose --config progress.debug=true
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1240, sample size is: 100
sampling from both directions
searching: 3 queries
query 3; still undecided: 1140, sample size is: 200
sampling from both directions
searching: 4 queries
query 4; still undecided: \d+, sample size is: 200 (re)
sampling from both directions
searching: 5 queries
query 5; still undecided: \d+, sample size is: 200 (re)
sampling from both directions
searching: 6 queries
query 6; still undecided: \d+, sample size is: \d+ (re)
6 total queries in *.????s (glob)
common heads: 3ee37d65064a
Test actual protocol when pulling one new head in addition to common heads
$ hg clone -U b c
$ hg -R c id -ir tip
513314ca8b3a
$ hg -R c up -qr default
$ touch c/f
$ hg -R c ci -Aqm "extra head"
$ hg -R c id -i
e64a39e7da8b
$ hg serve -R c -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
$ hg -R b incoming http://localhost:$HGPORT/ -T '{node|short}\n'
comparing with http://localhost:$HGPORT/
searching for changes
e64a39e7da8b
$ killdaemons.py
$ cut -d' ' -f6- access.log | grep -v cmd=known # cmd=known uses random sampling
"GET /?cmd=capabilities HTTP/1.1" 200 -
"GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D513314ca8b3ae4dac8eec56966265b00fcf866db x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$
"GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:$USUAL_BUNDLE_CAPS$&cg=1&common=513314ca8b3ae4dac8eec56966265b00fcf866db&heads=e64a39e7da8b0d54bc63e81169aff001c13b3477 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$
"GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$
$ cat errors.log
$ cd ..
Issue 4438 - test coverage for 3ef893520a85 issues.
$ mkdir issue4438
$ cd issue4438
#if false
generate new bundles:
$ hg init r1
$ for i in `$PYTHON $TESTDIR/seq.py 101`; do hg -R r1 up -qr null && hg -R r1 branch -q b$i && hg -R r1 ci -qmb$i; done
$ hg clone -q r1 r2
$ for i in `$PYTHON $TESTDIR/seq.py 10`; do hg -R r1 up -qr null && hg -R r1 branch -q c$i && hg -R r1 ci -qmc$i; done
$ hg -R r2 branch -q r2change && hg -R r2 ci -qmr2change
$ hg -R r1 bundle -qa $TESTDIR/bundles/issue4438-r1.hg
$ hg -R r2 bundle -qa $TESTDIR/bundles/issue4438-r2.hg
#else
use existing bundles:
$ hg clone -q $TESTDIR/bundles/issue4438-r1.hg r1
$ hg clone -q $TESTDIR/bundles/issue4438-r2.hg r2
#endif
Set iteration order could cause wrong and unstable results - fixed in 73cfaa348650:
$ hg -R r1 outgoing r2 -T'{rev} '
comparing with r2
searching for changes
101 102 103 104 105 106 107 108 109 110 (no-eol)
The case where all the 'initialsamplesize' samples already were common would
give 'all remote heads known locally' without checking the remaining heads -
fixed in 86c35b7ae300:
$ cat >> $TESTTMP/unrandomsample.py << EOF
> import random
> def sample(population, k):
> return sorted(population)[:k]
> random.sample = sample
> EOF
$ cat >> r1/.hg/hgrc << EOF
> [extensions]
> unrandomsample = $TESTTMP/unrandomsample.py
> EOF
$ hg -R r1 outgoing r2 -T'{rev} ' --config extensions.blackbox=
comparing with r2
searching for changes
101 102 103 104 105 106 107 108 109 110 (no-eol)
$ hg -R r1 --config extensions.blackbox= blackbox
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> serve --cmdserver chgunix * (glob) (chg !)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* (glob)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> found 101 common and 1 unknown server heads, 2 roundtrips in *.????s (glob)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* exited 0 after *.?? seconds (glob)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 --config *extensions.blackbox=* blackbox (glob)
$ cd ..