Mercurial > hg
view tests/test-import-eol.t @ 35190:bd8875b6473c
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
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 20 Nov 2017 23:02:32 -0800 |
parents | 75be14993fda |
children | a4d7e51709e5 |
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$ cat > makepatch.py <<EOF > f = file('eol.diff', 'wb') > w = f.write > w('test message\n') > w('diff --git a/a b/a\n') > w('--- a/a\n') > w('+++ b/a\n') > w('@@ -1,5 +1,5 @@\n') > w(' a\n') > w('-bbb\r\n') > w('+yyyy\r\n') > w(' cc\r\n') > w(' \n') > w(' d\n') > w('-e\n') > w('\ No newline at end of file\n') > w('+z\r\n') > w('\ No newline at end of file\r\n') > EOF $ hg init repo $ cd repo $ echo '\.diff' > .hgignore Test different --eol values $ $PYTHON -c 'file("a", "wb").write("a\nbbb\ncc\n\nd\ne")' $ hg ci -Am adda adding .hgignore adding a $ $PYTHON ../makepatch.py invalid eol $ hg --config patch.eol='LFCR' import eol.diff applying eol.diff abort: unsupported line endings type: LFCR [255] $ hg revert -a force LF $ hg --traceback --config patch.eol='LF' import eol.diff applying eol.diff $ cat a a yyyy cc d e (no-eol) $ hg st force CRLF $ hg up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg --traceback --config patch.eol='CRLF' import eol.diff applying eol.diff $ cat a a\r (esc) yyyy\r (esc) cc\r (esc) \r (esc) d\r (esc) e (no-eol) $ hg st auto EOL on LF file $ hg up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg --traceback --config patch.eol='auto' import eol.diff applying eol.diff $ cat a a yyyy cc d e (no-eol) $ hg st auto EOL on CRLF file $ $PYTHON -c 'file("a", "wb").write("a\r\nbbb\r\ncc\r\n\r\nd\r\ne")' $ hg commit -m 'switch EOLs in a' $ hg --traceback --config patch.eol='auto' import eol.diff applying eol.diff $ cat a a\r (esc) yyyy\r (esc) cc\r (esc) \r (esc) d\r (esc) e (no-eol) $ hg st auto EOL on new file or source without any EOL $ $PYTHON -c 'file("noeol", "wb").write("noeol")' $ hg add noeol $ hg commit -m 'add noeol' $ $PYTHON -c 'file("noeol", "wb").write("noeol\r\nnoeol\n")' $ $PYTHON -c 'file("neweol", "wb").write("neweol\nneweol\r\n")' $ hg add neweol $ hg diff --git > noeol.diff $ hg revert --no-backup noeol neweol $ rm neweol $ hg --traceback --config patch.eol='auto' import -m noeol noeol.diff applying noeol.diff $ cat noeol noeol\r (esc) noeol $ cat neweol neweol neweol\r (esc) $ hg st Test --eol and binary patches $ $PYTHON -c 'file("b", "wb").write("a\x00\nb\r\nd")' $ hg ci -Am addb adding b $ $PYTHON -c 'file("b", "wb").write("a\x00\nc\r\nd")' $ hg diff --git > bin.diff $ hg revert --no-backup b binary patch with --eol $ hg import --config patch.eol='CRLF' -m changeb bin.diff applying bin.diff $ cat b a\x00 (esc) c\r (esc) d (no-eol) $ hg st $ cd ..