Summary:
In Python, `None` is a singleton, so checking whether a variable is
`None` may be done with `is` or `is not`. This has a slight advantage
over equiality comparisons `== None` and `!= None`, since `__eq__` may
be overridden in Python to produce sometimes unexpected results.
Using `is None` and `is not None` is also recommended practice in
https://www.python.org/dev/peps/pep-0008:
> Comparisons to singletons like `None` should always be done with `is` or
> `is not`, never the equality operators.
Patch by Brian Gesiak!
Reviewers: ddunbar, echristo, beanz
Subscribers: llvm-commits, mehdi_amini
Differential Revision: https://reviews.llvm.org/D25168
llvm-svn: 283088
- This is primarily useful as a "fail fast" mode for lit, where it will stop
running tests after the first failure.
- Patch by Max Moiseev.
llvm-svn: 282452
Lots of unittests started failing under asan after r280455. It seems
they've been failing for a long time, but lit silently ignored them.
Downgrade the error so we can figure out what is going on.
Filed http://llvm.org/PR30285.
llvm-svn: 280674
Summary:
This is a follow up to r280455, where a check for the process exit code
was introduced. Some ASAN bots throw this error now, but it's impossible
to understand what's wrong with them, and the issue is not reproducible.
Reviewers: vitalybuka
Differential Revision: https://reviews.llvm.org/D24210
llvm-svn: 280550
Do this by creating a temp directory in the normal system temp
directory, and cleaning it up on exit.
It is still possible for this temp directory to leak if Python exits
abnormally, but this is probably good enough for now.
Fixes PR18335
llvm-svn: 280501
googletest formatted tests are discovered by running the test executable.
Previously testing would silently succeed if the test executable crashed
during the discovery process. Now testing fails with "error: unable to
discover google-tests ..." if the test executable exits with a non-zero status.
llvm-svn: 280455
Apparently nobody evaluated multiprocessing on Windows since Daniel
enabled multiprocessing on Unix in r193279. It works so far as I can
tell.
Today this is worth about an 8x speedup (631.29s to 73.25s) on my 24
core Windows machine. Hopefully this will improve Windows buildbot cycle
time, where currently it takes more time to run check-all than it does
to self-host with assertions enabled:
http://lab.llvm.org:8011/builders/clang-x86-windows-msvc2015/builds/20
build stage 2 ninja all ( 28 mins, 22 secs )
ninja check 2 stage 2 ( 37 mins, 38 secs )
llvm-svn: 280382
This variable is used by ASan (and other sanitizers in the future)
on s390x-linux to override a check for CVE-2016-2143 in the running
kernel (see revision 267747 on compiler-rt). Since the check simply
checks if the kernel version is in a whitelist of known-good versions,
it may miss distribution kernels, or manually-patched kernels - hence
the need for this variable. To enable running the ASan testsuite on
such kernels, this variable should be passed from the environment
down to the testcases.
Differential Revision: http://reviews.llvm.org/D19888
llvm-svn: 273825
- The intended use of this was just in diagnostics, so we shouldn't pay the
cost of reading these all the time.
- This will avoid including the full output of each command in tests which
fail, but the most important use case for this was to gather the output of
the specific command which failed.
llvm-svn: 272365
Use os.devnull instead of tempfiles when substituting '/dev/null' on
Windows machines. This should make the bots just a bit speedier.
Thanks to Yunzhong Gao for testing this patch on Windows!
Differential Revision: http://reviews.llvm.org/D20549
llvm-svn: 272290
- This will cause lit to automatically include the first 1K of data in
redirected output files when a command fails (previously if the command
failed, but the main point of the test was, say, a `FileCheck` later on, then
the log wasn't helpful in showing why the command failed).
llvm-svn: 272021
- This only applies to scripts executed by the _internal_ shell script
interpreter.
- This patch reworks the log to look more like a shell transcript, and be less
verbose (but in the interest of calling attention to the important parts).
Here is an example of the new format, for commands with/without failures and
with/without output:
```
$ true
$ echo hi
hi
$ false
note: command had no output on stdout or stderr
error: command failed with exit status 1
```
llvm-svn: 271610
Summary:
This patch adds a "REQUIRES-ANY" feature test that is disjunctive. This marks a test as `UNSUPPORTED` if none of the specified features are available.
Libc++ has the need to write feature test such as `// REQUIRES-ANY: c++98, c++03` when testing of behavior that is specific to older dialects but has since changed.
Reviewers: rnk, ddunbar
Subscribers: ddunbar, probinson, llvm-commits, cfe-commits
Differential Revision: http://reviews.llvm.org/D20757
llvm-svn: 271468
Summary:
We need these variables to concatenate two absolute paths to construct
a valid path. Currently, %t\%t is, for example, expanded to C:\foo\C:\foo,
which is not a valid path because ":" is not a valid path character
on Windows. With this patch, %t will be expanded to C\foo.
Differential Revision: http://reviews.llvm.org/D19757
llvm-svn: 268168
Summary:
Upstream googletest prints "Running main() from gtest_main.cc" to stdout prior
to running tests. LLVM removed that print statement in r61540. If a user were
to use lit to run tests that use upstream googletest, however, lit
reports "Running main()" as an invalid test name.
To avoid such a failure, add an extra conditional to `formats/googletest.py`.
Also add tests to demonstrate the modified behavior.
Reviewers: abdulras, ddunbar
Subscribers: ddunbar, llvm-commits, kastiglione
Differential Revision: http://reviews.llvm.org/D18606
llvm-svn: 265034
Summary:
The multiprocessing.Queue.put() call can hang if we try queueing all the
tests before starting to take them out of the queue.
The current implementation hangs if tests exceed 2^^15, on Mac OS X.
This might happen with a ninja check-all if one has a bunch of llvm
projects.
Reviewers: delcypher, bkramer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D17609
llvm-svn: 263731
This lets us for example start running the unit test suite early. For
'check-llvm' on my machine, this drops the tim e from 44s to 32s!!!!!
It's pretty ugly. I barely know how to write Python, so feel free to
just tell me how I should write it instead. =D Thanks to Filipe and
others for help.
Differential Revision: http://reviews.llvm.org/D18089
llvm-svn: 263329
Fix the lit bug that enabled this "feature" (empty triple is substring
of all possible target triples) and change the two outliers to use the
documented * syntax.
llvm-svn: 259799
If a lit test has a RUN line that includes a redirection to "/dev/tty", the
redirection goes to the special device file corresponding to the console. It
is /dev/tty on UNIX-like systems and "CON" on Windows.
This patch is needed to implement a test like PR25717 (caused by the size limit
of the Windows system call WriteConsole() prior to Windows 8) where the test
only breaks when outputing to the console and won't fail if using a pipe.
llvm-svn: 258898
is < ``2.0``.
Older versions of psutil (e.g. ``1.2.1`` which is the version shipped with
Ubuntu 14.04) use a different API for retrieving the child processes.
To handle this try the new API first and if that fails try the old API.
llvm-svn: 257616
This reverts r257221.
This caused several build bot failures
* It looks like some of the tests don't work correctly under Windows
* It looks like the lit per test timeout tests fail
So I'm reverting for now. Once the above failures are fixed running
lit's tests can be enabled again.
llvm-svn: 257268
directy with ``make check-lit`` and are run as part of
``make check-all``.
In principle we should run lit's testsuite before testing LLVM using lit
so that any problems with lit get discovered before testing LLVM so we
can bail out early. However this implementation (``check-all`` runs all
tests together) seemed simpler and will still report failing lit tests.
Note that the tests and the configured ``lit.site.cfg`` have to be
copied into the build directory to avoid polluting the source tree.
llvm-svn: 257221
This should work with ShTest (executed externally or internally) and GTest
test formats.
To set the timeout a new option ``--timeout=`` has
been added which specifies the maximum run time of an individual test
in seconds. By default this 0 which causes no timeout to be enforced.
The timeout can also be set from a lit configuration file by modifying
the ``lit_config.maxIndividualTestTime`` property.
To implement a timeout we now require the psutil Python module if a
timeout is requested. This dependency is confined to the newly added
``lit.util.killProcessAndChildren()``. A note has been added into the
TODO document describing how we can remove the dependency on the
``pustil`` module in the future. It would be nice to remove this
immediately but that is a lot more work and Daniel Dunbar believes it is
better that we get a working implementation first and then improve it.
To avoid breaking the existing behaviour the psutil module will not be
imported if no timeout is requested.
The included testcases are derived from test cases provided by
Jonathan Roelofs which were in an previous attempt to add a per test
timeout to lit (http://reviews.llvm.org/D6584). Thanks Jonathan!
Reviewers: ddunbar, jroelofs, cmatthews, MatzeB
Subscribers: cmatthews, llvm-commits
Differential Revision: http://reviews.llvm.org/D14706
llvm-svn: 256471
the script when running a ShTest with an external or internal shell.
This bug is caused by use of the ``map`` function in Python 3 which
returns an iterable (rather than a list in Python 2). After the iterable
is exhausted it won't return any more output and consequently when
``_runShTest()`` tries to access the ``script`` which has already been
iterated over it is empty. Converting to a list immediatley after
calling ``map()`` fixes this.
This fixes the ``tests/shtest-format.py`` test when running under
Python3 which was previously failing.
llvm-svn: 253556
instead of executable if the argument was found inside a directory
contained in PATH.
An example where this could cause a problem is if there was a RUN line
that ran the ``test`` command and if the user had a directory in their
PATH that contained a directory called ``test/`` (that occured before
``/usr/bin/``). Lit would try to use the directory as the executable
which would fail with the rather cryptic message.
```
Could not create process due to [Errno 13] Permission denied
```
llvm-svn: 253031
The existing -v option only displays commands and outputs for failed
tests, the newly introduced -a displays it for all executed tests.
llvm-svn: 251806
It is common to have a default soft process limit, at least on some families of
Linux distributions, of 1024. This is normally more than enough, but if you
have many cores, and you're running tests that create many threads, this can
become a problem. My POWER7 development machine has 48 cores, and when running
the lld regression tests, which often want to create up to 48 threads, I run
into problems. lit, by default, will want to run 48 tests in parallel, and
48*48 < 1024, and so many tests fail like this:
terminate called after throwing an instance of 'std::system_error'
what(): Resource temporarily unavailable
or lit fails like this when launching a test:
OSError: [Errno 11] Resource temporarily unavailable
lit can easily detect this situation and attempt to repair it before launching
tests (by raising the soft process limit to something that will allow ncpus^2
threads to be created), and should do so to prevent spurious test failures.
This is the follow-up to this thread:
http://lists.llvm.org/pipermail/llvm-dev/2015-October/090942.html
llvm-svn: 249161
The variable is actually called ANDROID_SERIAL.
This was not exercised on the bots until today.
Should fix the sanitizer-x86_64-linux failures.
llvm-svn: 246898
The plan is to use this for the sanitizer test suite on Windows. See
PR24554 for more details on why we need this.
Tested manually by injecting rand() into a sanitizer test and watching
what it does.
llvm-svn: 246704
My theory is that somehow Python's refcounting and GC strategy isn't
closing the subprocess handle in a timely fashion. This accesses the
private '_handle' field of the Popen object, but I see no other way to
do this. If this doesn't address the problem on the sanitizer-windows
buildbot, we can revert this change. If it does, then let's keep the
hack.
llvm-svn: 245946
This was affecting test/asan/TestCases/Windows/coverage-basic.cc in
compiler-rt. It does something like:
cd %T/mydir
%clang %s -o t.exe
./t.exe
Previously, we'd end up looking for t.exe relative to the cwd of the lit
process, not the cwd of the test.
llvm-svn: 242941
The MSys 2 version of 'env' cannot be used to set 'TZ' in the
environment due to some portability hacks in the process spawning
compatibility layer[1]. This affects test/Object/archive-toc.test, which
tries to set TZ in the environment.
Other than that, this saves a subprocess invocation of a small unix
utility, which is makes the tests faster.
The internal shell does not support shell variable expansion, so this
idiom in the ASan tests isn't supported yet:
RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:opt=1 ...
[1] https://github.com/Alexpux/MSYS2-packages/issues/294
Differential Revision: http://reviews.llvm.org/D11350
llvm-svn: 242696
Summary: This patch allows executeCommand to pass a string to the processes stdin.
Reviewers: ddunbar, jroelofs
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11332
llvm-svn: 242631
Pass ADB and ADB_SERIAL environment variables to lit tests.
This would allow running Android tests in compiler-rt when
there is more than one device attached to the host.
llvm-svn: 240459
Summary:
I spend some time trying to get the LIT test suite passing. Here are the changes that I needed to make on my machine.
I made the following changes for the following reasons.
1. google-test.py: The Google test format now checks for "[ PASSED ] 1 test." to check if a test passes.
2. discovery.py: The output appears in a different order on my machine than it did in the test.
3. unittest-adaptor.py: The output appears in a different order on my machine than it did in the test.
4. The classname is now formed differently in `getJUnitXML(...)`.
I'm not sure what is causing the output order to differ in discovery.py and unittest-adaptor.py. Does anybody have any thoughts?
Reviewers: ddunbar, danalbert, jroelofs
Reviewed By: jroelofs
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D9864
llvm-svn: 239663
By setting limit_to_features to a non empty list of features a configuration can
restrict the set of tests to run to only include tests that require a feature in
this list.
rdar://21082253
llvm-svn: 238766
These changes allow usages where you want to pass an additional
commandline option to all invocations of a specific llvm tool. Example:
> llvm-lit -Dllc=llc -enable-misched -verify-machineinstrs
Differential Revision: http://reviews.llvm.org/D9487
llvm-svn: 236461
The sanitizer test suite uses this idiom to disable a test. Now that we
actually check if a test ran after invoking it, we see that zero tests
ran, and complain.
Instead, ignore tests starting with DISABLED_ completely. Fixes the
sanitizer test suite failures on Windows.
llvm-svn: 234247
The '/' character in the test name of a type-parameterized test is not a
path separator, and should not be '\' on Windows. We were passing a test
name to --gtest_filter which found no tests, so the exit code was zero,
indicating a passed test.
This bug has been here since r84387 in 2009, when Jeff Yasskin added the
original lit support for type-paratermized tests. Somewhere along the
line some of the ValueMapTests started failing, but we can fix those
separately.
llvm-svn: 234242
The internal shell was already threading around a 'cwd' parameter. We
just have to make it mutable so that we can update it as the test script
executes.
If the shell ever grows support for environment variable substitution,
we could also implement support for export.
llvm-svn: 231017
Summary: I think this is probably a bug, but I'm putting this up for review just to be sure. I think that `lit.util.capture` should decode the resulting string in the same way `lit.util.executeCommand` does.
Reviewers: ddunbar, EricWF
Reviewed By: EricWF
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6769
llvm-svn: 225681
Summary:
The following types can be encoded and decoded by the json library:
`dict`, `list`, `tuple`, `str`, `unicode`, `int`, `long`, `float`, `bool`, `NoneType`.
`JSONMetricValue` can be constructed with any of these types, and used as part of Test.Result.
This patch also adds a toMetricValue function that converts a value into a MetricValue.
Reviewers: ddunbar, EricWF
Reviewed By: EricWF
Subscribers: cfe-commits, llvm-commits
Differential Revision: http://reviews.llvm.org/D6576
llvm-svn: 224628
We were already requiring 2.5, which meant that people on old linux distros
had to upgrade anyway.
Requiring python 2.6 will make supporting 3.X easier as we can use the 3.X
exception syntax.
According to the discussion on llvmdev, there is not much value is requiring
just 2.6, we may as well just require 2.7.
llvm-svn: 224129
Summary:
This patch gives me just enough to leverage the existing functionality in `TestRunner` for use in `libc++` and `libc++abi` .
It does the following:
* Adds the `UNSUPPORTED` tag to `TestRunner.parseIntegratedTestScript`.
* Allows `parseIntegratedTestScript` to return an empty script if a script is not required by the caller.
Reviewers: ddunbar, EricWF
Reviewed By: EricWF
Subscribers: cfe-commits, llvm-commits
Differential Revision: http://reviews.llvm.org/D6589
llvm-svn: 223915
--xunit-xml-output saves test results to disk in JUnit's xml format. This will allow Jenkins to report the details of a lit run.
Based on a patch by David Chisnall.
llvm-svn: 223163
execution of a shell command. This can happen for example if the
``RUN:`` line calls a python script which can work correctly under
Linux/OSX but will not work under Windows. A more useful error message
is now shown rather than an unhelpful backtrace.
llvm-svn: 220227
This code is based on the existing LLVM Go bindings project hosted at:
https://github.com/go-llvm/llvm
Note that all contributors to the gollvm project have agreed to relicense
their changes under the LLVM license and submit them to the LLVM project.
Differential Revision: http://reviews.llvm.org/D5684
llvm-svn: 219976
As far as I can tell UTF-8 has been supported since the beginning of Python's
codec support, and it's the de facto standard for text these days, at least
for primarily-English text. This allows us to put Unicode into lit RUN lines.
rdar://problem/18311663
llvm-svn: 217688
Summary:
This patch changes the way xfail and unsupported tests are displayed.
This output is only displayed when the --show-unsupported/--show-xfail flags are passed to lit.
Currently xfail/unsupported tests are printed during the run of the test-suite. I think its better to display this information during the summary instead.
This patch removes the printing of these tests from when they are run to the summary.
Reviewers: ddunbar, EricWF
Reviewed By: EricWF
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D4842
llvm-svn: 215809
Summary:
This patch add a --show-xfail flag. If this flag is specified then each xfail test will be printed to output.
When it is not given xfail tests are ignored. Ignoring xfail tests is the current behavior.
This flag is meant to mirror the --show-unsupported flag that was recently added.
Reviewers: ddunbar, EricWF
Reviewed By: EricWF
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D4750
llvm-svn: 214609
It was pointed out that this breaks the "virtual test discovery"
mechanism, which allows for narming tests in the test exec root.
Reverting until I can figure out how to fix this.
llvm-svn: 211048
It would previously say things like
warning: input 'test/Frontend/foo.c' contained no tests
and have the user pull their hair trying to figure out what's wrong with that
file. This patch changes the message to the much clearer:
warning: no such file or directory: 'test/Frontend/foo.c'
Differential Revision: http://reviews.llvm.org/D4097
llvm-svn: 210597
Chris Bieneman