upstream/mercurial-mirror Files · tests/test-issue672.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

Durham Goode - - Load All Authors

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      https://bz.mercurial-scm.org/672

      # 0-2-4

      #  \ \ \

      #   1-3-5

      #

      # rename in #1, content change in #4.

        $ hg init

        $ touch 1

        $ touch 2

        $ hg commit -Am init  # 0

        adding 1

        adding 2

        $ hg rename 1 1a

        $ hg commit -m rename # 1

        $ hg co -C 0

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

        $ echo unrelated >> 2

        $ hg ci -m unrelated1 # 2

        created new head

        $ hg merge --debug 1

          searching for copies back to rev 1

          unmatched files in other:

           1a

          all copies found (* = to merge, ! = divergent, % = renamed and deleted):

           src: '1' -> dst: '1a' 

          checking for directory renames

        resolving manifests

         branchmerge: True, force: False, partial: False

         ancestor: 81f4b099af3d, local: c64f439569a9+, remote: c12dcd37c90a

         1: other deleted -> r

        removing 1

         1a: remote created -> g

        getting 1a

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

        (branch merge, don't forget to commit)

        $ hg ci -m merge1 # 3

        $ hg co -C 2

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

        $ echo hello >> 1

        $ hg ci -m unrelated2 # 4

        created new head

        $ hg co -C 3

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

        $ hg merge -y --debug 4

          searching for copies back to rev 1

          unmatched files in local:

           1a

          all copies found (* = to merge, ! = divergent, % = renamed and deleted):

           src: '1' -> dst: '1a' *

          checking for directory renames

        resolving manifests

         branchmerge: True, force: False, partial: False

         ancestor: c64f439569a9, local: e327dca35ac8+, remote: 746e9549ea96

         preserving 1a for resolve of 1a

        starting 4 threads for background file closing (?)

         1a: local copied/moved from 1 -> m (premerge)

        picked tool ':merge' for 1a (binary False symlink False changedelete False)

        merging 1a and 1 to 1a

        my 1a@e327dca35ac8+ other 1@746e9549ea96 ancestor 1@c64f439569a9

         premerge successful

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

        (branch merge, don't forget to commit)

        $ hg co -C 4

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

        $ hg merge -y --debug 3

          searching for copies back to rev 1

          unmatched files in other:

           1a

          all copies found (* = to merge, ! = divergent, % = renamed and deleted):

           src: '1' -> dst: '1a' *

          checking for directory renames

        resolving manifests

         branchmerge: True, force: False, partial: False

         ancestor: c64f439569a9, local: 746e9549ea96+, remote: e327dca35ac8

         preserving 1 for resolve of 1a

        removing 1

        starting 4 threads for background file closing (?)

         1a: remote moved from 1 -> m (premerge)

        picked tool ':merge' for 1a (binary False symlink False changedelete False)

        merging 1 and 1a to 1a

        my 1a@746e9549ea96+ other 1a@e327dca35ac8 ancestor 1@c64f439569a9

         premerge successful

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

        (branch merge, don't forget to commit)

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				https://bz.mercurial-scm.org/672

				# 0-2-4
				# \ \ \
				# 1-3-5
				#
				# rename in #1, content change in #4.

				$ hg init

				$ touch 1
				$ touch 2
				$ hg commit -Am init # 0
				adding 1
				adding 2

				$ hg rename 1 1a
				$ hg commit -m rename # 1

				$ hg co -C 0
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved

				$ echo unrelated >> 2
				$ hg ci -m unrelated1 # 2
				created new head

				$ hg merge --debug 1
				searching for copies back to rev 1
				unmatched files in other:
				1a
				all copies found (* = to merge, ! = divergent, % = renamed and deleted):
				src: '1' -> dst: '1a'
				checking for directory renames
				resolving manifests
				branchmerge: True, force: False, partial: False
				ancestor: 81f4b099af3d, local: c64f439569a9+, remote: c12dcd37c90a
				1: other deleted -> r
				removing 1
				1a: remote created -> g
				getting 1a
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved
				(branch merge, don't forget to commit)

				$ hg ci -m merge1 # 3

				$ hg co -C 2
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved

				$ echo hello >> 1
				$ hg ci -m unrelated2 # 4
				created new head

				$ hg co -C 3
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved

				$ hg merge -y --debug 4
				searching for copies back to rev 1
				unmatched files in local:
				1a
				all copies found (* = to merge, ! = divergent, % = renamed and deleted):
				src: '1' -> dst: '1a' *
				checking for directory renames
				resolving manifests
				branchmerge: True, force: False, partial: False
				ancestor: c64f439569a9, local: e327dca35ac8+, remote: 746e9549ea96
				preserving 1a for resolve of 1a
				starting 4 threads for background file closing (?)
				1a: local copied/moved from 1 -> m (premerge)
				picked tool ':merge' for 1a (binary False symlink False changedelete False)
				merging 1a and 1 to 1a
				my 1a@e327dca35ac8+ other 1@746e9549ea96 ancestor 1@c64f439569a9
				premerge successful
				0 files updated, 1 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)

				$ hg co -C 4
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved

				$ hg merge -y --debug 3
				searching for copies back to rev 1
				unmatched files in other:
				1a
				all copies found (* = to merge, ! = divergent, % = renamed and deleted):
				src: '1' -> dst: '1a' *
				checking for directory renames
				resolving manifests
				branchmerge: True, force: False, partial: False
				ancestor: c64f439569a9, local: 746e9549ea96+, remote: e327dca35ac8
				preserving 1 for resolve of 1a
				removing 1
				starting 4 threads for background file closing (?)
				1a: remote moved from 1 -> m (premerge)
				picked tool ':merge' for 1a (binary False symlink False changedelete False)
				merging 1 and 1a to 1a
				my 1a@746e9549ea96+ other 1a@e327dca35ac8 ancestor 1@c64f439569a9
				premerge successful
				0 files updated, 1 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)