obsolescence: add test case D-4 for obsolescence markers exchange
About 3 years ago, in August 2014, the logic to select what markers to select on
push was ported from the evolve extension to Mercurial core. However, for some
unclear reasons, the tests for that logic were not ported alongside.
I realised it a couple of weeks ago while working on another push related issue.
I've made a clean up pass on the tests and they are now ready to integrate the
core test suite. This series of changesets do not change any logic. I just adds
test for logic that has been around for about 10 versions of Mercurial.
They are a patch for each test case. It makes it easier to review and postpone
one with documentation issues without rejecting the wholes series.
This patch introduce case D-4: unknown changeset in between known on
Each test case comes it in own test file. It help parallelism and does not
introduce a significant overhead from having a single unified giant test file.
Here are timing to support this claim.
# Multiple test files version:
# run-tests.py --local -j 1 test-exchange-*.t
53.40s user 6.82s system 85% cpu 1:10.76 total
52.79s user 6.97s system 85% cpu 1:09.97 total
52.94s user 6.82s system 85% cpu 1:09.69 total
# Single test file version:
# run-tests.py --local -j 1 test-exchange-obsmarkers.t
52.97s user 6.85s system 85% cpu 1:10.10 total
52.64s user 6.79s system 85% cpu 1:09.63 total
53.70s user 7.00s system 85% cpu 1:11.17 total
#require test-repo
$ . "$TESTDIR/helpers-testrepo.sh"
$ import_checker="$TESTDIR"/../contrib/import-checker.py
Run the doctests from the import checker, and make sure
it's working correctly.
$ TERM=dumb
$ export TERM
$ python -m doctest $import_checker
Run additional tests for the import checker
$ mkdir testpackage
$ touch testpackage/__init__.py
$ cat > testpackage/multiple.py << EOF
> from __future__ import absolute_import
> import os, sys
> EOF
$ cat > testpackage/unsorted.py << EOF
> from __future__ import absolute_import
> import sys
> import os
> EOF
$ cat > testpackage/stdafterlocal.py << EOF
> from __future__ import absolute_import
> from . import unsorted
> import os
> EOF
$ cat > testpackage/requirerelative.py << EOF
> from __future__ import absolute_import
> import testpackage.unsorted
> EOF
$ cat > testpackage/importalias.py << EOF
> from __future__ import absolute_import
> import ui
> EOF
$ cat > testpackage/relativestdlib.py << EOF
> from __future__ import absolute_import
> from .. import os
> EOF
$ cat > testpackage/symbolimport.py << EOF
> from __future__ import absolute_import
> from .unsorted import foo
> EOF
$ cat > testpackage/latesymbolimport.py << EOF
> from __future__ import absolute_import
> from . import unsorted
> from mercurial.node import hex
> EOF
$ cat > testpackage/multiplegroups.py << EOF
> from __future__ import absolute_import
> from . import unsorted
> from . import more
> EOF
$ mkdir testpackage/subpackage
$ cat > testpackage/subpackage/levelpriority.py << EOF
> from __future__ import absolute_import
> from . import foo
> from .. import parent
> EOF
$ touch testpackage/subpackage/foo.py
$ cat > testpackage/subpackage/__init__.py << EOF
> from __future__ import absolute_import
> from . import levelpriority # should not cause cycle
> EOF
$ cat > testpackage/subpackage/localimport.py << EOF
> from __future__ import absolute_import
> from . import foo
> def bar():
> # should not cause "higher-level import should come first"
> from .. import unsorted
> # but other errors should be detected
> from .. import more
> import testpackage.subpackage.levelpriority
> EOF
$ cat > testpackage/importmodulefromsub.py << EOF
> from __future__ import absolute_import
> from .subpackage import foo # not a "direct symbol import"
> EOF
$ cat > testpackage/importsymbolfromsub.py << EOF
> from __future__ import absolute_import
> from .subpackage import foo, nonmodule
> EOF
$ cat > testpackage/sortedentries.py << EOF
> from __future__ import absolute_import
> from . import (
> foo,
> bar,
> )
> EOF
$ cat > testpackage/importfromalias.py << EOF
> from __future__ import absolute_import
> from . import ui
> EOF
$ cat > testpackage/importfromrelative.py << EOF
> from __future__ import absolute_import
> from testpackage.unsorted import foo
> EOF
$ mkdir testpackage2
$ touch testpackage2/__init__.py
$ cat > testpackage2/latesymbolimport.py << EOF
> from __future__ import absolute_import
> from testpackage import unsorted
> from mercurial.node import hex
> EOF
$ python "$import_checker" testpackage*/*.py testpackage/subpackage/*.py
testpackage/importalias.py:2: ui module must be "as" aliased to uimod
testpackage/importfromalias.py:2: ui from testpackage must be "as" aliased to uimod
testpackage/importfromrelative.py:2: import should be relative: testpackage.unsorted
testpackage/importfromrelative.py:2: direct symbol import foo from testpackage.unsorted
testpackage/importsymbolfromsub.py:2: direct symbol import nonmodule from testpackage.subpackage
testpackage/latesymbolimport.py:3: symbol import follows non-symbol import: mercurial.node
testpackage/multiple.py:2: multiple imported names: os, sys
testpackage/multiplegroups.py:3: multiple "from . import" statements
testpackage/relativestdlib.py:2: relative import of stdlib module
testpackage/requirerelative.py:2: import should be relative: testpackage.unsorted
testpackage/sortedentries.py:2: imports from testpackage not lexically sorted: bar < foo
testpackage/stdafterlocal.py:3: stdlib import "os" follows local import: testpackage
testpackage/subpackage/levelpriority.py:3: higher-level import should come first: testpackage
testpackage/subpackage/localimport.py:7: multiple "from .. import" statements
testpackage/subpackage/localimport.py:8: import should be relative: testpackage.subpackage.levelpriority
testpackage/symbolimport.py:2: direct symbol import foo from testpackage.unsorted
testpackage/unsorted.py:3: imports not lexically sorted: os < sys
testpackage2/latesymbolimport.py:3: symbol import follows non-symbol import: mercurial.node
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