upstream/mercurial-mirror Files · tests/test-convert-clonebranches.t

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

Augie Fackler - - Load All Authors

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        $ cat <<EOF >> $HGRCPATH

        > [extensions]

        > convert =

        > [convert]

        > hg.tagsbranch = 0

        > EOF

        $ hg init source

        $ cd source

        $ echo a > a

        $ hg ci -qAm adda

      Add a merge with one parent in the same branch

        $ echo a >> a

        $ hg ci -qAm changea

        $ hg up -qC 0

        $ hg branch branch0

        marked working directory as branch branch0

        (branches are permanent and global, did you want a bookmark?)

        $ echo b > b

        $ hg ci -qAm addb

        $ hg up -qC

        $ hg merge default

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        (branch merge, don't forget to commit)

        $ hg ci -qm mergeab

        $ hg tag -ql mergeab

        $ cd ..

      Miss perl... sometimes

        $ cat > filter.py <<EOF

        > from __future__ import absolute_import

        > import re

        > import sys

        > 

        > r = re.compile(r'^(?:\d+|pulling from)')

        > sys.stdout.writelines([l for l in sys.stdin if r.search(l)])

        > EOF

      convert

        $ hg convert -v --config convert.hg.clonebranches=1 source dest |

        >     $PYTHON filter.py

        3 adda

        2 changea

        1 addb

        pulling from default into branch0

        1 changesets found

        0 mergeab

        pulling from default into branch0

        1 changesets found

      Add a merge with both parents and child in different branches

        $ cd source

        $ hg branch branch1

        marked working directory as branch branch1

        $ echo a > file1

        $ hg ci -qAm c1

        $ hg up -qC mergeab

        $ hg branch branch2

        marked working directory as branch branch2

        $ echo a > file2

        $ hg ci -qAm c2

        $ hg merge branch1

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        (branch merge, don't forget to commit)

        $ hg branch branch3

        marked working directory as branch branch3

        $ hg ci -qAm c3

        $ cd ..

      incremental conversion

        $ hg convert -v --config convert.hg.clonebranches=1 source dest |

        >     $PYTHON filter.py

        2 c1

        pulling from branch0 into branch1

        4 changesets found

        1 c2

        pulling from branch0 into branch2

        4 changesets found

        0 c3

        pulling from branch1 into branch3

        5 changesets found

        pulling from branch2 into branch3

        1 changesets found

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				$ cat <<EOF >> $HGRCPATH
				> [extensions]
				> convert =
				> [convert]
				> hg.tagsbranch = 0
				> EOF
				$ hg init source
				$ cd source
				$ echo a > a
				$ hg ci -qAm adda

				Add a merge with one parent in the same branch

				$ echo a >> a
				$ hg ci -qAm changea
				$ hg up -qC 0
				$ hg branch branch0
				marked working directory as branch branch0
				(branches are permanent and global, did you want a bookmark?)
				$ echo b > b
				$ hg ci -qAm addb
				$ hg up -qC
				$ hg merge default
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)
				$ hg ci -qm mergeab
				$ hg tag -ql mergeab
				$ cd ..

				Miss perl... sometimes

				$ cat > filter.py <<EOF
				> from __future__ import absolute_import
				> import re
				> import sys
				>
				> r = re.compile(r'^(?:\d+\|pulling from)')
				> sys.stdout.writelines([l for l in sys.stdin if r.search(l)])
				> EOF

				convert

				$ hg convert -v --config convert.hg.clonebranches=1 source dest \|
				> $PYTHON filter.py
				3 adda
				2 changea
				1 addb
				pulling from default into branch0
				1 changesets found
				0 mergeab
				pulling from default into branch0
				1 changesets found

				Add a merge with both parents and child in different branches

				$ cd source
				$ hg branch branch1
				marked working directory as branch branch1
				$ echo a > file1
				$ hg ci -qAm c1
				$ hg up -qC mergeab
				$ hg branch branch2
				marked working directory as branch branch2
				$ echo a > file2
				$ hg ci -qAm c2
				$ hg merge branch1
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)
				$ hg branch branch3
				marked working directory as branch branch3
				$ hg ci -qAm c3
				$ cd ..

				incremental conversion

				$ hg convert -v --config convert.hg.clonebranches=1 source dest \|
				> $PYTHON filter.py
				2 c1
				pulling from branch0 into branch1
				4 changesets found
				1 c2
				pulling from branch0 into branch2
				4 changesets found
				0 c3
				pulling from branch1 into branch3
				5 changesets found
				pulling from branch2 into branch3
				1 changesets found