upstream/mercurial-mirror Files · tests/test-merge-closedheads.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

Mads Kiilerich - - Load All Authors

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        $ hgcommit() {

        >    hg commit -u user "$@"

        > }

        $ hg init clhead

        $ cd clhead

        $ touch foo && hg add && hgcommit -m 'foo'

        adding foo

        $ touch bar && hg add && hgcommit -m 'bar'

        adding bar

        $ touch baz && hg add && hgcommit -m 'baz'

        adding baz

        $ echo "flub" > foo

        $ hgcommit -m "flub"

        $ echo "nub" > foo

        $ hgcommit -m "nub"

        $ hg up -C 2

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

        $ echo "c1" > c1

        $ hg add c1

        $ hgcommit -m "c1"

        created new head

        $ echo "c2" > c1

        $ hgcommit -m "c2"

        $ hg up -C 2

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

        $ echo "d1" > d1

        $ hg add d1

        $ hgcommit -m "d1"

        created new head

        $ echo "d2" > d1

        $ hgcommit -m "d2"

        $ hg tag -l good

      fail with three heads

        $ hg up -C good

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

        $ hg merge

        abort: branch 'default' has 3 heads - please merge with an explicit rev

        (run 'hg heads .' to see heads)

        [255]

      close one of the heads

        $ hg up -C 6

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

        $ hgcommit -m 'close this head' --close-branch

      succeed with two open heads

        $ hg up -C good

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

        $ hg up -C good

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

        $ hg merge

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

        (branch merge, don't forget to commit)

        $ hgcommit -m 'merged heads'

      hg update -C 8

        $ hg update -C 8

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

      hg branch some-branch

        $ hg branch some-branch

        marked working directory as branch some-branch

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

      hg commit

        $ hgcommit -m 'started some-branch'

      hg commit --close-branch

        $ hgcommit --close-branch -m 'closed some-branch'

      hg update default

        $ hg update default

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

      hg merge some-branch

        $ hg merge some-branch

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

        (branch merge, don't forget to commit)

      hg commit (no reopening of some-branch)

        $ hgcommit -m 'merge with closed branch'

        $ cd ..

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				$ hgcommit() {
				> hg commit -u user "$@"
				> }

				$ hg init clhead
				$ cd clhead

				$ touch foo && hg add && hgcommit -m 'foo'
				adding foo
				$ touch bar && hg add && hgcommit -m 'bar'
				adding bar
				$ touch baz && hg add && hgcommit -m 'baz'
				adding baz

				$ echo "flub" > foo
				$ hgcommit -m "flub"
				$ echo "nub" > foo
				$ hgcommit -m "nub"

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

				$ echo "c1" > c1
				$ hg add c1
				$ hgcommit -m "c1"
				created new head
				$ echo "c2" > c1
				$ hgcommit -m "c2"

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

				$ echo "d1" > d1
				$ hg add d1
				$ hgcommit -m "d1"
				created new head
				$ echo "d2" > d1
				$ hgcommit -m "d2"
				$ hg tag -l good

				fail with three heads
				$ hg up -C good
				0 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ hg merge
				abort: branch 'default' has 3 heads - please merge with an explicit rev
				(run 'hg heads .' to see heads)
				[255]

				close one of the heads
				$ hg up -C 6
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ hgcommit -m 'close this head' --close-branch

				succeed with two open heads
				$ hg up -C good
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ hg up -C good
				0 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ hg merge
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)
				$ hgcommit -m 'merged heads'

				hg update -C 8
				$ hg update -C 8
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved

				hg branch some-branch
				$ hg branch some-branch
				marked working directory as branch some-branch
				(branches are permanent and global, did you want a bookmark?)
				hg commit
				$ hgcommit -m 'started some-branch'
				hg commit --close-branch
				$ hgcommit --close-branch -m 'closed some-branch'

				hg update default
				$ hg update default
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				hg merge some-branch
				$ hg merge some-branch
				0 files updated, 0 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)
				hg commit (no reopening of some-branch)
				$ hgcommit -m 'merge with closed branch'

				$ cd ..