Commit Graph

334 Commits

Author SHA1 Message Date
Julian Lettner 5925c4a0ff [lit] Increase sleep time in timeout test
Fixup for cbe42a9d5f.  Increase values for testing the overall lit
timeout (--max-time) which wasn't enough for the test to complete on
very slow build bots.
2020-04-10 16:22:00 -07:00
Julian Lettner cbe42a9d5f [lit] Add SKIPPED test result category
Track and print the number of skipped tests.  Skipped tests are tests
that should have been executed but weren't due to:
  * user interrupt [Ctrl+C]
  * --max-time (overall lit timeout)
  * --max-failures

This is part of a larger effort to ensure that all discovered tests are
properly accounted for.

Add test for overall lit timeout feature (`--max-time` option) to
observe skipped tests.  Extend test for `--max-failures` option.

Reviewed By: jdenny

Differential Revision: https://reviews.llvm.org/D77819
2020-04-10 15:13:30 -07:00
Julian Lettner 414745026c [lit] Improve test summary output
This change aligns the test summary output along the longest
category label.  We also properly align test counts.

Before:
```
Testing Time: 10.30s
  Unsupported Tests  : 1
  Expected Passes    : 30
```

After:
```
Testing Time: 10.29s
  Unsupported Tests:  1
  Expected Passes  : 30
```
2020-04-07 22:19:50 -07:00
Julian Lettner 2ac96d61c2 [lit] Improve consistency when printing test results 2020-04-07 18:12:18 -07:00
Julian Lettner 38edab1c40 [lit] Improve handling of parallelism group semaphores 2020-04-06 20:52:06 -07:00
Louis Dionne 8a42bf24ae [lit] Move the recursiveExpansionLimit setting to TestingConfig
The LitConfig is shared across the whole test suite. However, since
enabling recursive expansion can be a breaking change for some test
suites, it's important to confine the setting to test suites that
enable it explicitly.

Note that other issues were raised with the way recursiveExpansionLimit
operates. However, this commit simply moves the setting to the right
place -- the mechanism by which it works can be improved independently.

Differential Revision: https://reviews.llvm.org/D77415
2020-04-06 13:58:00 -04:00
Julian Lettner a3fab31acd [lit] Refine adoption of argparse --version action
The real work for this was already done by serge-sans-paille [1].
Thanks for this!

[1] 1d4849379f
2020-03-31 16:02:16 -07:00
Julian Lettner 1e8900cc82 [lit] Fix test that relied on "single process" mode
The shtest-inject test relied on being executed in "single process" mode
and started to fail with a `PicklingError` after it was removed:
```
  Can't pickle <class 'lit.TestingConfig.CustomFormat'>: attribute
  lookup lit.TestingConfig.CustomFormat failed
```

This happened because the test config has to be serialized to the worker
process, but apparently the `CustomFormat` class defined inline is not
serializable.

This change allows passing the tested functionality (preamble_commands)
directly to `lit.formats.ShTest` so we can use it directly in the test.
2020-03-30 21:58:48 -07:00
Louis Dionne faf415a1de [lit] Recursively expand substitutions
This allows defining substitutions in terms of other substitutions. For
example, a %build substitution could be defined in terms of a %cxx
substitution as '%cxx %s -o %t.exe' and the script would be properly
expanded.

Differential Revision: https://reviews.llvm.org/D76178
2020-03-27 09:25:26 -04:00
Louis Dionne 8f64b02d33 [lit] Allow passing extra commands to executeShTest
This allows creating custom test formats on top of `executeShTest` that
inject commands at the beginning of the file being parsed, without
requiring these commands to physically appear in the test file itself.

For example, one could define a test format that prints out additional
debug information at the beginning of each test. More realistically,
this has been used to define custom test formats like one that supports
compilation failure tests (e.g. with the extension `compile.fail.cpp`)
by injecting a command that calls the compiler on the file itself and
expects it to fail.

Without this change, the only alternative is to create a temporary file
with the same content as the original test, then prepend the desired
`// RUN:` lines to that file, and call `executeShTest` on that file
instead. This is both slow and cumbersome to do.

Differential Revision: https://reviews.llvm.org/D76290
2020-03-24 15:02:37 -04:00
Louis Dionne f951b0f82d [lit] Add builtin support for flaky tests in lit
This commit adds a new keyword in lit called ALLOW_RETRIES. This keyword
takes a single integer as an argument, and it allows the test to fail that
number of times before it first succeeds.

This work attempts to make the existing test_retry_attempts more flexible
by allowing by-test customization, as well as eliminate libc++'s FLAKY_TEST
custom logic.

Differential Revision: https://reviews.llvm.org/D76288
2020-03-18 18:04:01 -04:00
Louis Dionne 1458bb92df [lit] NFC: Fix typo in log statement 2020-03-17 16:49:56 -04:00
serge-sans-paille f8b8a1ca8b Fix lit version test
Looks like on some system, version is printed on stderr, on some it's on stdout...
2020-02-13 21:49:48 +01:00
serge-sans-paille 1d4849379f Fix handling of --version in lit
There's no reason why we should require a directory when asking for the version.

Differential Revision: https://reviews.llvm.org/D74553
2020-02-13 21:36:12 +01:00
Nemanja Ivanovic ba5a00167b Fix buildbot failures after removing REQUIRES-ANY
It would appear that the removal of this lit feature was incomplete
and there is a test case that still tests for this. This patch removes
the remaining tests to bring the bots back to green. I would encourage the
author to do a post-commit review on this in case there is a more desirable fix.
2019-12-17 15:27:45 -06:00
Joel E. Denny 9658e77e27 [lit] Fix internal diff newlines for -w/-b
For example, without this patch:

```
$ python $LIT_BUILTINS/diff.py -b foo.txt bar.txt
*** /tmp/foo.txt
--- /tmp/bar.txt
***************
*** 1,2 ****
  1! 2--- 1,2 ----
  1! 20
```

With this patch:

```
$ python $LIT_BUILTINS/diff.py -b foo.txt bar.txt
*** /tmp/foo.txt
--- /tmp/bar.txt
***************
*** 1,2 ****
  1
! 2
--- 1,2 ----
  1
! 20
```

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D71577
2019-12-17 10:49:34 -05:00
Thomas Preud'homme ddd0bb8dba [lit] Remove lit's REQUIRES-ANY directive
Summary:
Remove REQUIRES-ANY alias lit directive since it is hardly used and can
be easily implemented using an OR expression using REQUIRES. Fixup
remaining testcases still using REQUIRES-ANY.

Reviewers: probinson, jdenny, gparker42

Reviewed By: gparker42

Subscribers: eugenis, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, delcypher, jrtc27, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, cfe-commits, #sanitizers, llvm-commits

Tags: #llvm, #clang, #sanitizers

Differential Revision: https://reviews.llvm.org/D71408
2019-12-17 10:36:36 +00:00
Julian Lettner cf252240e8 [lit] Small cleanups. NFCI
Remove unnecessary (argument same as default), cleanup imports, use
"pythonic" names for variables, and general formatting.
2019-12-13 17:00:04 -08:00
Julian Lettner f38b543b97 [lit] Improve formatting of error messages. NFC 2019-12-11 14:39:39 -08:00
Paul Robinson baacd18918 Fix up lit's tests to run in a multi-config build environment.
Differential Revision: https://reviews.llvm.org/D70239
2019-11-14 11:24:41 -08:00
Julian Lettner 54a9b4c02f [lit] Better/earlier errors for empty runs
Fail early, when we discover no tests at all, or filter out all of them.

There is also `--allow-empty-runs` to disable test to allow workflows
like `LIT_FILTER=abc ninja check-all`.  Apparently `check-all` invokes
lit multiple times if certain projects are enabled, which would produce
unwanted "empty runs". Specify via `LIT_OPTS=--allow-empty-runs`.

There are 3 causes for empty runs:
1) No tests discovered.  This is always an error.  Fix test suite config
   or command line.
2) All tests filtered out.  This is an error by default, but can be
   suppressed via `--alow-empty-runs`.  Should prevent accidentally
   passing empty runs, but allow the workflow above.
3) The number of shards is greater than the number of tests.  Currently,
   this is never an error.  Personally, I think we should consider
   making this an error by default; if this happens, you are doing
   something wrong. I added a warning but did not change the behavior,
   since this warrants more discussion.

Reviewed By: atrick, jdenny

Differential Revision: https://reviews.llvm.org/D70105
2019-11-12 09:11:36 -08:00
Joel E. Denny 6cecd3c3db [lit] Protect full test suite from FILECHECK_OPTS
lit's test suite calls lit multiple times for various sample test
suites.  `FILECHECK_OPTS` is safe for FileCheck calls in lit's test
suite.  It's not safe for FileCheck calls in the sample test suites,
whose output affects the results of lit's test suite.

Without this patch, only one such sample test suite is protected from
`FILECHECK_OPTS`, and currently `shtest-shell.py` breaks with
`FILECHECK_OPTS=-vv`.  Moreover, it's hard to predict the future,
especially false passes.  Thus, this patch protects all existing and
future sample test suites from `FILECHECK_OPTS` (and the deprecated
`FILECHECK_DUMP_INPUT_ON_FAILURE`).

Reviewed By: probinson

Differential Revision: https://reviews.llvm.org/D65156
2019-11-06 16:25:25 -05:00
Julian Lettner d77ef856fc Revert "[lit] Better/earlier errors when no tests are executed"
This reverts commit d8f2bff751.
2019-11-05 12:10:43 -08:00
Joel E. Denny f1b4c4bfd0 [lit] Fix `not` calling internal commands
Without this patch, when using lit's internal shell, if `not` on a lit
RUN line calls `env`, `diff`, or any of the other in-process shell
builtins that lit implements, lit accidentally searches for the latter
as an external executable.  What's worse is that works fine when a
developer is testing on a platform where those executables are
available and behave as expected, but it then breaks on other
platforms.

`not` seems useful for some builtins, such as `diff`, so this patch
supports such uses.  `not --crash` does not seem useful for builtins,
so this patch diagnoses such uses.  In all cases, this patch ensures
shell builtins are found behind any sequence of `env` and `not`
commands.

`not` calling `env` calling an external command appears useful when
the `env` and external command are part of a lit substitution, as in
D65156.  This patch supports that by looking through any sequence of
`env` and `not` commands, building the environment from the `env`s,
and storing the `not`s.  The `not`s are then added back to the command
line without the `env`s to execute externally.  This avoids the need
to replicate the `not` implementation, in particular the `--crash`
option, in lit.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D66531
2019-11-05 14:09:21 -05:00
Julian Lettner d8f2bff751 [lit] Better/earlier errors when no tests are executed
Fail early, when we discover no tests at all, or filter out all of them.
2019-11-04 10:16:24 -08:00
Joel E. Denny cb2c4bb0e0 [lit] Fix internal env calling env
Without this patch, when using lit's internal shell, if `env` on a lit
RUN line calls `env`, lit accidentally searches for the latter as an
external executable.  What's worse is that works fine when a developer
is testing on a platform where `env` is available and behaves as
expected, but it then breaks on other platforms.

`env` calling `env` can make sense if one such `env` is within a lit
substitution, as in D65156 and D65121.  This patch ensures that lit
executes both as internal commands.

Reviewed By: probinson, mgorny, rnk

Differential Revision: https://reviews.llvm.org/D65697
2019-11-01 14:08:52 -04:00
Joel E. Denny 0d4e6519c5 [lit] Fix internal env calling other internal commands
Without this patch, when using lit's internal shell, if `env` on a lit
RUN line calls `cd`, `mkdir`, or any of the other in-process shell
builtins that lit implements, lit accidentally searches for the latter
as an external executable.

This patch puts such builtins in a map so that boilerplate for them
need be implemented only once.  This patch moves that handling after
processing of `env` so that `env` calling such a builtin can be
detected.  Finally, because such calls appear to be useless, this
patch takes the safe approach of diagnosing them rather than
supporting them.

Reviewed By: probinson, mgorny, rnk

Differential Revision: https://reviews.llvm.org/D66506
2019-10-31 14:37:51 -04:00
Joel E. Denny 7c1d536c21 [lit] Extend internal diff to support `-` argument
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff file -
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` doesn't
recognize `-` as a command-line option.  This patch adds support for
`-` to mean stdin.

Reviewed By: probinson, rnk

Differential Revision: https://reviews.llvm.org/D67643
2019-10-29 15:13:53 -04:00
Joel E. Denny b163806cdc [lit] Make internal diff work in pipelines
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff file -
 # RUN: not diff file1 file2 | FileCheck %s
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` cannot
currently be used in pipelines and doesn't recognize `-` as a
command-line option.

To enable pipelines, this patch moves lit's `diff` implementation into
an out-of-process script, similar to lit's `cat` implementation.  A
follow-up patch will implement `-` to mean stdin.

Also, when lit's `diff` prints differences to stdout in Windows, this
patch ensures it always terminate lines with `\n` not `\r\n`.  That
way, strict FileCheck directives checking the `diff` output succeed in
both Linux and Windows.  This wasn't an issue when `diff` was internal
to lit because `diff` didn't then write to the true stdout, which is
where the `\n` -> `\r\n` conversion happened in Python.

Reviewed By: probinson, stella.stamenova

Differential Revision: https://reviews.llvm.org/D66574
2019-10-29 15:13:52 -04:00
Alex Lorenz 32837a60ac [lit] Drop the user-site packages directory from search paths when running tests
Do not add user-site packages directory to the python search path.
This avoids test failures if there's an incompatible lit module installed
inside the user-site packages directory, as it gets prioritized over the lit
from the PYTHONPATH.
2019-10-27 13:31:02 -07:00
Joel E. Denny 27fdf8a29d [lit] Don't fail when printing test output with special chars
This addresses a UnicodeEncodeError when using Python 3.6.5 in Windows
10.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D69207
2019-10-25 18:13:13 -04:00
Joel E. Denny e96e2d3227 Revert r375114: "[lit] Make internal diff work in pipelines"
This series of patches still breaks a Windows bot.

llvm-svn: 375121
2019-10-17 14:43:42 +00:00
Joel E. Denny 5e684e8d88 Revert r375116: "[lit] Extend internal diff to support `-` argument"
This series of patches still breaks a Windows bot.

llvm-svn: 375120
2019-10-17 14:43:26 +00:00
Joel E. Denny 849d67a700 [lit] Extend internal diff to support `-` argument
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff file -
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` doesn't
recognize `-` as a command-line option.  This patch adds support for
`-` to mean stdin.

Reviewed By: probinson, rnk

Differential Revision: https://reviews.llvm.org/D67643

llvm-svn: 375116
2019-10-17 14:03:06 +00:00
Joel E. Denny 221e418f0c [lit] Make internal diff work in pipelines
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff file -
 # RUN: not diff file1 file2 | FileCheck %s
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` cannot
currently be used in pipelines and doesn't recognize `-` as a
command-line option.

To enable pipelines, this patch moves lit's `diff` implementation into
an out-of-process script, similar to lit's `cat` implementation.  A
follow-up patch will implement `-` to mean stdin.

Reviewed By: probinson, stella.stamenova

Differential Revision: https://reviews.llvm.org/D66574

llvm-svn: 375114
2019-10-17 14:02:42 +00:00
Julian Lettner 168ef8a8d6 [lit] Remove unnecessary usage of lit.Run
llvm-svn: 375056
2019-10-16 23:31:32 +00:00
Joel E. Denny 2622419c78 [lit] Fix internal diff's --strip-trailing-cr and use it
Using GNU diff, `--strip-trailing-cr` removes a `\r` appearing before
a `\n` at the end of a line.  Without this patch, lit's internal diff
only removes `\r` if it appears as the last character.  That seems
useless.  This patch fixes that.

This patch also adds `--strip-trailing-cr` to some tests that fail on
Windows bots when D68664 is applied.  Based on what I see in the bot
logs, I think the following is happening.  In each test there, lit
diff is comparing a file with `\r\n` line endings to a file with `\n`
line endings.  Without D68664, lit diff reads those files in text
mode, which in Windows causes `\r\n` to be replaced with `\n`.
However, with D68664, lit diff reads the files in binary mode instead
and thus reports that every line is different, just as GNU diff does
(at least under Ubuntu).  Adding `--strip-trailing-cr` to those tests
restores the previous behavior while permitting the behavior of lit
diff to be more like GNU diff.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D68839

llvm-svn: 375020
2019-10-16 17:21:57 +00:00
Joel E. Denny f095b8c425 [lit] Clean up internal diff's encoding handling
As suggested by rnk at D67643#1673043, instead of reading files
multiple times until an appropriate encoding is found, read them once
as binary, and then try to decode what was read.

For Python >= 3.5, don't fail when attempting to decode the
`diff_bytes` output in order to print it.

Avoid failures for Python 2.7 used on some Windows bots by
transforming diff output with `lit.util.to_string` before writing it
to stdout.

Finally, add some tests for encoding handling.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D68664

llvm-svn: 375018
2019-10-16 17:21:24 +00:00
Julian Lettner 74b285eee7 [lit] Add back LitTestCase
This essentially reverts a commit [1] that removed the adaptor for
Python unittests.  The code has been slightly refactored to make it more
additive: all code is contained in LitTestCase.py.

Usage sites will require a small adaption:
```
[old]
  import lit.discovery
  ...
  test_suite = lit.discovery.load_test_suite(...)

[new]
  import lit.LitTestCase
  ...
  test_suite = lit.LitTestCase.load_test_suite(...)
```

This was put back on request by Daniel Dunbar, since I wrongly assumed
that the functionality is unused.  At least llbuild still uses this [2].

[1] 70ca752ccf
[2] https://github.com/apple/swift-llbuild/blob/master/utils/Xcode/LitXCTestAdaptor/LitTests.py#L16

Reviewed By: ddunbar

Differential Revision: https://reviews.llvm.org/D69002

llvm-svn: 374947
2019-10-15 20:57:20 +00:00
Joel E. Denny 7e385bd2f5 [lit] Extend internal diff to support -U
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff -U1 file -
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` doesn't
recognize `-U` as a command-line option.  This patch adds `-U`
support.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D68668

llvm-svn: 374814
2019-10-14 19:59:30 +00:00
Joel E. Denny 3049748e15 Revert r374648: "Reland r374388: [lit] Make internal diff work in pipelines"
This series of patches still breaks a Windows bot.

llvm-svn: 374683
2019-10-12 18:52:46 +00:00
Joel E. Denny 199f5cd863 Revert r374649: "Reland r374389: [lit] Clean up internal diff's encoding handling"
This series of patches still breaks a Windows bot.

llvm-svn: 374682
2019-10-12 18:52:31 +00:00
Joel E. Denny f6210fc24f Revert r374650: "Reland r374390: [lit] Extend internal diff to support `-` argument"
This series of patches still breaks a Windows bot.

llvm-svn: 374681
2019-10-12 18:52:18 +00:00
Joel E. Denny b3f157a900 Revert 374651: "Reland r374392: [lit] Extend internal diff to support -U"
This series of patches still breaks a Windows bot.

llvm-svn: 374680
2019-10-12 18:52:05 +00:00
Joel E. Denny 57046e8fd9 Revert r374652: "[lit] Fix internal diff's --strip-trailing-cr and use it"
This series of patches still breaks a Windows bot.

llvm-svn: 374679
2019-10-12 18:51:51 +00:00
Joel E. Denny 9abfa58171 Revert r374653: "[lit] Fix a few oversights in r374651 that broke some bots"
This series of patches still breaks a Windows bot.

llvm-svn: 374678
2019-10-12 18:51:34 +00:00
Joel E. Denny 8259f7ca12 Revert r374657: "[lit] Try again to fix new tests that fail on Windows bots"
llvm-svn: 374664
2019-10-12 16:00:25 +00:00
Joel E. Denny 1f5823b788 [lit] Try again to fix new tests that fail on Windows bots
Based on the bot logs, when lit's internal diff runs on Windows, it
looks like binary diffs must be decoded also for Python 2.7.
Otherwise, writing the diff to stdout fails with:

```
UnicodeEncodeError: 'ascii' codec can't encode characters in position 7-8: ordinal not in range(128)
```

I did not need to decode using Python 2.7.15 under Ubuntu.  When I do
it anyway in that case, `errors="backslashreplace"` fails for me:

```
TypeError: don't know how to handle UnicodeDecodeError in error callback
```

However, `errors="ignore"` works, so this patch uses that, hoping
it'll work on Windows as well.

This patch leaves `errors="backslashreplace"` for Python >= 3.5 as
there's no evidence yet that doesn't work and it produces more
informative binary diffs.  This patch also adjusts some lit tests to
succeed for either error handler.

This patch adjusts changes introduced by D68664.

llvm-svn: 374657
2019-10-12 14:58:43 +00:00
Joel E. Denny 0e22cb6ce3 Revert r374654: "[lit] Try to fix new tests that fail on Windows bots"
llvm-svn: 374656
2019-10-12 14:58:30 +00:00
Joel E. Denny ba229557dd [lit] Try to fix new tests that fail on Windows bots
llvm-svn: 374654
2019-10-12 13:08:21 +00:00
Joel E. Denny 648875bbcf [lit] Fix a few oversights in r374651 that broke some bots
llvm-svn: 374653
2019-10-12 12:32:00 +00:00
Joel E. Denny 0f80927316 [lit] Fix internal diff's --strip-trailing-cr and use it
Using GNU diff, `--strip-trailing-cr` removes a `\r` appearing before
a `\n` at the end of a line.  Without this patch, lit's internal diff
only removes `\r` if it appears as the last character.  That seems
useless.  This patch fixes that.

This patch also adds `--strip-trailing-cr` to some tests that fail on
Windows bots when D68664 is applied.  Based on what I see in the bot
logs, I think the following is happening.  In each test there, lit
diff is comparing a file with `\r\n` line endings to a file with `\n`
line endings.  Without D68664, lit diff reads those files with
Python's universal newlines support activated, causing `\r` to be
dropped.  However, with D68664, lit diff reads the files in binary
mode instead and thus reports that every line is different, just as
GNU diff does (at least under Ubuntu).  Adding `--strip-trailing-cr`
to those tests restores the previous behavior while permitting the
behavior of lit diff to be more like GNU diff.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D68839

llvm-svn: 374652
2019-10-12 11:58:30 +00:00
Joel E. Denny 92a8294f9e Reland r374392: [lit] Extend internal diff to support -U
To avoid breaking some tests, D66574, D68664, D67643, and D68668
landed together.  However, D68664 introduced an issue now addressed by
D68839, with which these are now all relanding.

Differential Revision: https://reviews.llvm.org/D68668

llvm-svn: 374651
2019-10-12 11:58:03 +00:00
Joel E. Denny 32096a86b2 Reland r374390: [lit] Extend internal diff to support `-` argument
To avoid breaking some tests, D66574, D68664, D67643, and D68668
landed together.  However, D68664 introduced an issue now addressed by
D68839, with which these are now all relanding.

Differential Revision: https://reviews.llvm.org/D67643

llvm-svn: 374650
2019-10-12 11:57:41 +00:00
Joel E. Denny e4f11a3192 Reland r374389: [lit] Clean up internal diff's encoding handling
To avoid breaking some tests, D66574, D68664, D67643, and D68668
landed together.  However, D68664 introduced an issue now addressed by
D68839, with which these are now all relanding.

Differential Revision: https://reviews.llvm.org/D68664

llvm-svn: 374649
2019-10-12 11:57:20 +00:00
Joel E. Denny daf42dc36d Reland r374388: [lit] Make internal diff work in pipelines
To avoid breaking some tests, D66574, D68664, D67643, and D68668
landed together.  However, D68664 introduced an issue now addressed by
D68839, with which these are now all relanding.

Differential Revision: https://reviews.llvm.org/D66574

llvm-svn: 374648
2019-10-12 11:56:57 +00:00
Julian Lettner ac36dafb69 [lit] Change regex filter to ignore case
Make regex filter `--filter=REGEX` option more lenient via
`re.IGNORECASE`.

Reviewed By: yln

Differential Revision: https://reviews.llvm.org/D68834

llvm-svn: 374601
2019-10-11 21:57:06 +00:00
Joel E. Denny a71511feb5 Revert r374388: "[lit] Make internal diff work in pipelines"
This breaks a Windows bot.

llvm-svn: 374429
2019-10-10 19:25:39 +00:00
Joel E. Denny 3e0b23d154 Revert r374389: "[lit] Clean up internal diff's encoding handling"
This breaks a Windows bot.

llvm-svn: 374427
2019-10-10 19:25:24 +00:00
Joel E. Denny bdbeccb387 Revert r374390: "[lit] Extend internal diff to support `-` argument"
This breaks a Windows bot.

llvm-svn: 374426
2019-10-10 19:25:11 +00:00
Joel E. Denny b5af1335be Revert r374392: "[lit] Extend internal diff to support -U"
This breaks a Windows bot.

llvm-svn: 374425
2019-10-10 19:24:57 +00:00
Julian Lettner 822946ceaa [lit] Leverage argparse features to remove some code
Reviewed By: rnk, serge-sans-paille

Differential Revision: https://reviews.llvm.org/D68589

llvm-svn: 374405
2019-10-10 18:03:37 +00:00
Joel E. Denny 61d7ecbf84 [lit] Extend internal diff to support -U
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff -U1 file -
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` doesn't
recognize `-U` as a command-line option.  This patch adds `-U`
support.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D68668

llvm-svn: 374392
2019-10-10 17:40:12 +00:00
Joel E. Denny f4edce12ff [lit] Extend internal diff to support `-` argument
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff file -
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` doesn't
recognize `-` as a command-line option.  This patch adds support for
`-` to mean stdin.

Reviewed By: probinson, rnk

Differential Revision: https://reviews.llvm.org/D67643

llvm-svn: 374390
2019-10-10 17:39:57 +00:00
Joel E. Denny 19e6bb25f0 [lit] Clean up internal diff's encoding handling
As suggested by rnk at D67643#1673043, instead of reading files
multiple times until an appropriate encoding is found, read them once
as binary, and then try to decode what was read.

For python >= 3.5, don't fail when attempting to decode the
`diff_bytes` output in order to print it.

Finally, add some tests for encoding handling.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D68664

llvm-svn: 374389
2019-10-10 17:39:41 +00:00
Joel E. Denny df35ec8289 [lit] Make internal diff work in pipelines
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff file -
 # RUN: not diff file1 file2 | FileCheck %s
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` cannot
currently be used in pipelines and doesn't recognize `-` as a
command-line option.

To enable pipelines, this patch moves lit's `diff` implementation into
an out-of-process script, similar to lit's `cat` implementation.  A
follow-up patch will implement `-` to mean stdin.

Reviewed By: probinson, stella.stamenova

Differential Revision: https://reviews.llvm.org/D66574

llvm-svn: 374388
2019-10-10 17:39:24 +00:00
Julian Lettner 72c7c21dda [lit] Refactor ProgressDisplay
Move progress display to separate file.  Simplify some code paths.
Decouple from other components via progress callback.  Remove unused
`_Display` class.

Reviewed By: serge-sans-paille

Differential Revision: https://reviews.llvm.org/D68525

llvm-svn: 374194
2019-10-09 18:23:30 +00:00
Julian Lettner 68eefbb064 [lit] Use better name for "test in parallel" concept
In the past, lit used threads to run tests in parallel. Today we use
`multiprocessing.Pool`, which uses processes. Let's stay more abstract
and use "worker" everywhere.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D68475

llvm-svn: 373794
2019-10-04 21:40:20 +00:00
Joel E. Denny 0a0ea7ec99 Revert r372035: "[lit] Make internal diff work in pipelines"
This breaks a Windows bot.

llvm-svn: 372051
2019-09-16 23:47:46 +00:00
Joel E. Denny 2152ae985c [lit] Make internal diff work in pipelines
When using lit's internal shell, RUN lines like the following
accidentally execute an external `diff` instead of lit's internal
`diff`:

```
 # RUN: program | diff file -
 # RUN: not diff file1 file2 | FileCheck %s
```

Such cases exist now, in `clang/test/Analysis` for example.  We are
preparing patches to ensure lit's internal `diff` is called in such
cases, which will then fail because lit's internal `diff` cannot
currently be used in pipelines and doesn't recognize `-` as a
command-line option.

To enable pipelines, this patch moves lit's `diff` implementation into
an out-of-process script, similar to lit's `cat` implementation.  A
follow-up patch will implement `-` to mean stdin.

Reviewed By: probinson, stella.stamenova

Differential Revision: https://reviews.llvm.org/D66574

llvm-svn: 372035
2019-09-16 21:22:29 +00:00
Joel E. Denny 3c577bb415 [lit] Diagnose insufficient args to internal env
Without this patch, failing to provide a subcommand to lit's internal
`env` results in either a python `IndexError` or an attempt to execute
the final `env` argument, such as `FOO=1`, as a command.  This patch
diagnoses those cases with a more helpful message.

Reviewed By: stella.stamenova

Differential Revision: https://reviews.llvm.org/D66482

llvm-svn: 369620
2019-08-22 03:42:01 +00:00
Joel E. Denny 971a9f7eea [lit] Check for accidental external command calls
This patch extends lit's test suite to check that lit's internal shell
doesn't accidentally execute internal commands as external commands.
It does so by putting fake failing versions of those commands in
`PATH` while the entire lit test suite is running.  Without the fixes
in D65697 but with its tests, this approach catches accidental
external `env` calls.

Reviewed By: probinson

Differential Revision: https://reviews.llvm.org/D66293

llvm-svn: 369309
2019-08-19 22:59:37 +00:00
Joel E. Denny a67d81e4e2 [lit] Print internal env commands
Without this patch, the internal `env` command removes `env` and its
args from the command line while parsing it.  This patch modifies a
copy instead so that the original command line is printed.

Reviewed By: stella.stamenova, rnk

Differential Revision: https://reviews.llvm.org/D65624

llvm-svn: 367752
2019-08-03 06:08:19 +00:00
Joel E. Denny 2c5a60f1dc [lit] Actually run tests for internal env command
Put the main test script in the right directory, and fix a python bug
in a local script.

Reviewed By: stella.stamenova

Differential Revision: https://reviews.llvm.org/D65623

llvm-svn: 367751
2019-08-03 06:08:04 +00:00
Stella Stamenova df1b00a7cb [lit] Fix 42812: lit test suite can no longer be run stand-alone
Summary:
This change updates the lit.cfg file to use llvm_config when it is available, but when it is not, it directly modifies the config object. This makes it possible to run the lit tests standalone without having built llvm (as long as the correct binaries are present in the path such as FileCheck and not).

Because the lit tests don't take a hard dependency on llvm_config, some features such as system-windows have to have definitions in lit's cfg file as well. This is a potential issue as the os features sometimes change names (for example, we went from windows to system-windows, etc.). This can cause drift between lit's tests and the rest of the llvm tests.

Reviewers: probinson, mgorny

Reviewed By: mgorny

Subscribers: delcypher, llvm-commits, asmith

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65674

llvm-svn: 367730
2019-08-02 22:03:12 +00:00
Joel E. Denny c69c46ff7a Revert r366980: "[lit] Protect full test suite from FILECHECK_OPTS"
Windows bots are broken.  See recent D65335 and D65156 comments.

llvm-svn: 367627
2019-08-01 22:26:51 +00:00
Joel E. Denny 7f7b3f1131 Revert r367123: "[llvm] [lit/tests] Replace 'env -u' with more portable construct"
Must be reverted in order to revert r366980, which breaks windows
bots.  See recent D65335 and D65156 comments.

llvm-svn: 367626
2019-08-01 22:26:37 +00:00
Michal Gorny 40a10446c0 [llvm] [lit/tests] Replace 'env -u' with more portable construct
Set environment variables to empty values rather than attempting
to unset them via 'env -u', in order to fix NetBSD test regression
caused by r366980.  POSIX does not guarantee that env(1) supports '-u'
option, and indeed NetBSD env(1) does not support it.

Differential Revision: https://reviews.llvm.org/D65335

llvm-svn: 367123
2019-07-26 15:39:05 +00:00
Joel E. Denny 272a9db115 [lit] Protect full test suite from FILECHECK_OPTS
lit's test suite calls lit multiple times for various sample test
suites.  `FILECHECK_OPTS` is safe for FileCheck calls in lit's test
suite.  It's not safe for FileCheck calls in the sample test suites,
whose output affects the results of lit's test suite.

Without this patch, only one such sample test suite is protected from
`FILECHECK_OPTS`, and I admit I haven't discovered other cases for
which I can produce false failures using `FILECHECK_OPTS`.  However,
it's hard to predict the future, especially false passes.  Thus, this
patch protects all existing and future sample test suites from
`FILECHECK_OPTS` (and the deprecated
`FILECHECK_DUMP_INPUT_ON_FAILURE`).

Reviewed By: probinson

Differential Revision: https://reviews.llvm.org/D65156

llvm-svn: 366980
2019-07-25 03:14:32 +00:00
David Tenty b9179ff857 [AIX][lit] Don't depend on psutil on AIX
Summary:
On AIX psutil can run into problems with permissions to read the process
tree, which causes problems for python timeout tests which need to kill off
a test and it's children.

This patch adds a workaround by invoking shell via subprocess and using a
platform specific option to ps to list all the descendant processes so we can
kill them. We add some checks so lit can tell whether timeout tests are
supported with out exposing whether we are utilizing the psutil
implementation or the alternative.

Reviewers: hubert.reinterpretcast, andusy, davide, delcypher

Reviewed By: delcypher

Subscribers: davide, delcypher, christof, lldb-commits, libcxx-commits, llvm-commits

Tags: #lldb, #libc, #llvm

Differential Revision: https://reviews.llvm.org/D64251

llvm-svn: 366912
2019-07-24 15:04:27 +00:00
Joel E. Denny 1602058c04 [lit] Parse command-line options from LIT_OPTS
Similar to `FILECHECK_OPTS` for FileCheck, `LIT_OPTS` makes it easy to
adjust lit behavior when running the test suite via ninja.  For
example:

```
$ LIT_OPTS='--time-tests -vv --filter=threadprivate' \
  ninja check-clang-openmp
```

Reviewed By: probinson

Differential Revision: https://reviews.llvm.org/D64135

llvm-svn: 365313
2019-07-08 12:18:40 +00:00
Michal Gorny 0c28a8f628 [lit] Fix UnicodeEncodeError when test commands contain non-ASCII chars
Ensure that the bash script written by lit TestRunner is open with UTF-8
encoding when using Python 3.  Otherwise, attempt to write non-ASCII
characters causes UnicodeEncodeError.  This happened e.g. with
the following LLD test:

UNRESOLVED: lld :: ELF/format-binary-non-ascii.s (657 of 2119)
******************** TEST 'lld :: ELF/format-binary-non-ascii.s' FAILED ********************
Exception during script execution:
Traceback (most recent call last):
  File "/home/mgorny/llvm-project/llvm/utils/lit/lit/worker.py", line 63, in _execute_test
    result = test.config.test_format.execute(test, lit_config)
  File "/home/mgorny/llvm-project/llvm/utils/lit/lit/formats/shtest.py", line 25, in execute
    self.execute_external)
  File "/home/mgorny/llvm-project/llvm/utils/lit/lit/TestRunner.py", line 1644, in executeShTest
    res = _runShTest(test, litConfig, useExternalSh, script, tmpBase)
  File "/home/mgorny/llvm-project/llvm/utils/lit/lit/TestRunner.py", line 1590, in _runShTest
    res = executeScript(test, litConfig, tmpBase, script, execdir)
  File "/home/mgorny/llvm-project/llvm/utils/lit/lit/TestRunner.py", line 1157, in executeScript
    f.write('{ ' + '; } &&\n{ '.join(commands) + '; }')
UnicodeEncodeError: 'ascii' codec can't encode character '\xa3' in position 274: ordinal not in range(128)

Differential Revision: https://reviews.llvm.org/D63254

llvm-svn: 363388
2019-06-14 13:31:48 +00:00
Stella Stamenova 83c28abdb2 lit: modernize the lit configuration for the lit tests
Summary: This also normalizes the config feature that represents the windows platform to "system-windows" as opposed to having both "windows" and "system-windows"

Reviewers: asmith, probinson

Subscribers: delcypher, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D61798

llvm-svn: 361998
2019-05-29 18:07:39 +00:00
Stella Stamenova 46b9d19cc0 Use UNSUPPORTED: windows in shtest-timeout.py. Apparently system-windows does not cover all cases either and the case it doesn't cover affects one of the buildbots.
llvm-svn: 360373
2019-05-09 20:22:02 +00:00
Stella Stamenova bc9e086693 Use UNSUPPORTED: system-windows instead of REQUIRES: nowindows or UNSUPPORTED: windows. nowindows is not currently defined and windows does not cover all cases. system-windows is also consistent with how other platforms are used.
llvm-svn: 360368
2019-05-09 19:40:21 +00:00
Paul Robinson 0b68fc3f59 Re-enable lit test shtest-timeout.py on non-Windows.
It was disabled incorrectly, which meant it wasn't running anywhere.

llvm-svn: 360356
2019-05-09 17:01:03 +00:00
Hubert Tong 66a9642f56 [lit][tests][AIX] Update expected form of diagnostic messages; use `not` to normalize non-zero exit values
Summary:
Various tests in the `lit` testing suite expect specific return codes
and forms of diagnostic message from utility programs. As per
POSIX.1-2017 XCU Section 1.4, Utility Description Defaults, "[the]
format of diagnostic messages for most utilities is unspecified".
The STDERR subsections of the `cat` and `wc` utilities merely indicate
that "[the] standard error shall be used only for diagnostic messages".
The corresponding EXIT STATUS subsections merely indicate, with regard
to errors, an exit value of >0.

The affected tests are updated to accept the applicable diagnostic
message as produced by the utilities on AIX. The exit value is
normalized using `not` as necessary.

Reviewers: xingxue, sfertile, jasonliu

Reviewed By: xingxue

Subscribers: delcypher, jsji, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60553

llvm-svn: 359690
2019-05-01 15:47:16 +00:00
Serge Guelton 54be909aa0 Add Support for Creating and Deleting Unicode Files and Directories in Lit
This enables lit to work with unicode file names via mkdir, rm, and redirection.
Lit still uses utf-8 internally, but converts to utf-16 on Windows, or just utf-8
bytes on everything else.

Committed on behalf of Jason Mittertreiner
Differential Revision: https://reviews.llvm.org/D56754

llvm-svn: 355122
2019-02-28 19:16:17 +00:00
Dmitri Gribenko 60e52f5e3d Fixed typos in a test: s/CEHCK/CHECK/
Reviewers: ilya-biryukov, serge-sans-paille

Subscribers: delcypher, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58613

llvm-svn: 355080
2019-02-28 10:58:13 +00:00
Julian Lettner eb38a70d11 [lit] Allow setting parallelism groups to None
Check that we do not crash if a parallelism group is explicitly set to
None. Permits usage of the following pattern.

[lit.common.cfg]
  lit_config.parallelism_groups['my_group'] = None
  if <condition>:
    lit_config.parallelism_groups['my_group'] = 3

[project/lit.cfg]
  config.parallelism_group = 'my_group'

Reviewers: rnk

Differential Revision: https://reviews.llvm.org/D58305

llvm-svn: 354912
2019-02-26 19:03:26 +00:00
Julian Lettner 70ca752ccf [lit] Remove LitTestCase
From the docs: `class LitTestCase(unittest.TestCase)`
LitTestCase is an adaptor for providing a 'unittest' compatible
interface to 'lit' tests so that we can run lit tests with standard
python test runners.

It does not seem to be used anywhere.

Differential Revision: https://reviews.llvm.org/D58264

llvm-svn: 354188
2019-02-16 00:44:00 +00:00
Julian Lettner bd40ecf7d6 [lit][NFC] Cleanup copy&paste naming mistake
llvm-svn: 354095
2019-02-15 02:44:52 +00:00
Julian Lettner 3c76c09ebf [lit] Remove --single-process option (use -j1 instead)
Remove `--single-process` command line option. Use `-j1` instead.

Also see commit: 96adb78b12

llvm-svn: 354073
2019-02-14 22:46:56 +00:00
Julian Lettner 96adb78b12 [lit] Set --single-process for single tests and --threads=1
Summary:
Automatically upgrade debugging experience (single process, no thread
pool) when:
  1) we only run a single test
  2) user specifies `-j1`

Details:
Fix `--max-failures` in single process mode. Option did not have an
effect in single process mode.

Add display feedback for single process mode. Adapted test.

Improve argument checking (require positive integers).

`--single-process` is now essentially an alias for `-j1`. Should we
remove it?

Reviewers: rnk

Differential Revision: https://reviews.llvm.org/D58249

llvm-svn: 354068
2019-02-14 22:30:07 +00:00
Eric Fiselier 1989f7e04f make XFAIL, REQUIRES, and UNSUPPORTED support multi-line expressions
llvm-svn: 351668
2019-01-20 00:51:02 +00:00
Dan Liew 105f4f2653 [lit] Make it possible for the lit test suite to pass with
`FILECHECK_OPTS=-v` set in the environment.

Follow up to r350850 as requested by Joel E. Denny in
https://reviews.llvm.org/D56541 .

llvm-svn: 350854
2019-01-10 17:47:44 +00:00
David Greene 6f1394ff86 [lit] Respect PYTHONPATH
If a user has PYTHONPATH set in the environment, append new entries to
it rather than blindly setting PYTHONPATH to a fixed string. This
allows tests to, for example, find psutil if it is in
PYTHONPATH. Without this change, lit will detect psutil but then
various tests will fail because PYTHONPATH has been overwritten and
psutil cannot be found.

llvm-svn: 350536
2019-01-07 16:24:37 +00:00
Serge Guelton 4a27478a5b Python compat - print statement
Make sure all print statements are compatible with Python 2 and Python3 using
the `from __future__ import print_function` statement.

Differential Revision: https://reviews.llvm.org/D56249

llvm-svn: 350307
2019-01-03 14:11:33 +00:00
Stella Stamenova 4f780ea126 [lit] Disable shtest-timeout on Windows
Summary: This is the only test that is still failing on Windows - or rather, it is expected to fail on the bots, but passes on the new bot that we're preparing causing a failure, so I'm going to disable it. Since the test has rarely, if ever, passed on the bots, this should have the same effect and it will unblock the creation of the new bot.

Reviewers: asmith, delcypher, zturner

Subscribers: stella.stamenova, llvm-commits

Differential Revision: https://reviews.llvm.org/D51871

llvm-svn: 341856
2018-09-10 20:24:05 +00:00
Stella Stamenova 8f8832d261 [lit, shtest-timeout] Always use an internal shell for the shtest-timeout to diagnose buildbot failures
Summary:
Right now this test is failing on the builtbots on Windows but we have a very similar setup where the test passes. The test is meant to test that specifying a timeout works correctly by running an infnite loop and having it timeout - on the buildbot, the infinite loop doesn't actually execute. This change runs all of the tests in the set using an internal shell rather than an external shell. I expect this will make the test pass which means that either the way the external shell is invoked or the external shell setup on the buildbots is not correct. Regardless of whether the test passes with this change, we'll need to undo this change and have a real fix.

@gkistanova was able to get logs from the buildbot to rule out a number of theories as to why this test is failing, but they didn't have enough information to confirm exactly what the issue is. The purpose of this change is to narrow it down, but if someone has a local repro and can aid in debugging, that would make it much speedier (and less prone to making the bots fail).

Reviewers: gkistanova, asmith, zturner, modocache, rnk, delcypher

Reviewed By: rnk

Subscribers: delcypher, llvm-commits, gkistanova

Differential Revision: https://reviews.llvm.org/D51326

llvm-svn: 340840
2018-08-28 16:24:55 +00:00
Stella Stamenova 4f03fb1c04 [lit] Disable shtest-timeout on Windows
This test passes on Windows when using Python 3 but fails when using Python 2, so it needs more investigation before it can be enabled as the bots use Python 2.

llvm-svn: 339184
2018-08-07 21:21:30 +00:00
Stella Stamenova 8efc95ac2f [lit, python3] Update lit error logging to work correctly in python3 and other test fixes
Summary:
In Python2 'unicode' is a distinct type from 'str', but in Python3 'unicode' does not exist and instead all 'str' objects are Unicode string. This change updates the logic in the test logging for lit to correctly process each of the types, and more importantly, to not just fail in Python3.

This change also reverses the use of quotes in several of the cfg files. By using '""' we are guaranteeing that the resulting path will work correctly on Windows while "''" only works correctly sometimes. This also fixes one of the failing tests.

Reviewers: asmith, zturner

Subscribers: stella.stamenova, delcypher, llvm-commits

Differential Revision: https://reviews.llvm.org/D50397

llvm-svn: 339179
2018-08-07 20:54:38 +00:00
Stella Stamenova 9ca5db0904 [lit, tests] Fix failing lit test: shtest-format.py
Summary:
The problem here is that on windows double quotes are used for paths (usually) while single quotes are not. This is not generally a problem for the tests because the lit infrastructure tends to treat both the same. One (and possibly only) exception is when some tests are run in an external shell such as some of the shtest-format tests. In this case on windows the path to python was not created correctly because it had single quotes and the test failed.

This same test is already failing with python 3 which is why our testing missed the new failure. This patch will take care of the immediate failure with python 2 and I'll send a follow up for the python 3 failure.

Reviewers: asmith, zturner

Subscribers: delcypher, llvm-commits

Differential Revision: https://reviews.llvm.org/D50373

llvm-svn: 339091
2018-08-07 04:08:46 +00:00
Stella Stamenova cc2404c01d [lit, python] Always add quotes around the python path in lit
Summary:
The issue with the python path is that the path to python on Windows can contain spaces. To make the tests always work, the path to python needs to be surrounded by quotes.

This change updates several configuration files which specify the path to python as a substitution and also remove quotes from existing tests.

Reviewers: asmith, zturner, alexshap, jakehehrlich

Reviewed By: zturner, alexshap, jakehehrlich

Subscribers: mehdi_amini, nemanjai, eraman, kbarton, jakehehrlich, steven_wu, dexonsmith, stella.stamenova, delcypher, llvm-commits

Differential Revision: https://reviews.llvm.org/D50206

llvm-svn: 339073
2018-08-06 22:37:44 +00:00
Justin Bogner 78bb0b4b3c [lit] Move the shtest-xunit-output check lines into shtest-format
These two tests are operating on the same test suite, which causes
them to be racy about writing temporary files and can cause spurious
failures. Merge them into one test to avoid the issue.

llvm-svn: 337718
2018-07-23 18:08:36 +00:00
Hans Wennborg c4b7e0125f Relax shtest-run-at-line.py
The test was failing on Windows machines which had bash.exe on PATH (but
not in the so called lit tools dir, containing cmp.exe, grep.exe etc.).

The problem was that the outer lit invocation would load LLVMConfig
from utils/lit/lit/llvm/config.py, which looks up the tools path with
getToolsPath(). That has a surprising side effect of also setting
bashPath, in our case setting it to empty.

The outer lit invocation would thus configure the pdbg0 and pdbg1
substitutions based on not running with bash.

But the inner lit invocation would not load LLVMConfig, so bash
would be found on PATH, that would be used as external shell,
and so the output wouldn't match pdbg0 and pdbg1.

It seems weird to me that getBashPath() will return different results
depending on whether getToolsPath() has been called before, but I
also don't know how to fix it properly.

This commit just relaxes the test case, because there doesn't seem
to be much point in testing for the exact syntax of the run file
as long as it works.

(See https://crbug.com/850023)

llvm-svn: 334100
2018-06-06 14:53:03 +00:00
Joel E. Denny 44ee15f34f [lit] Fix windows cmd.exe test config for r333620
llvm-svn: 333630
2018-05-31 05:48:33 +00:00
Joel E. Denny fc01dd281d [lit] Terminate ": RUN at line N" with ";" not "&&"
This fixes projects/compiler-rt/test/fuzzer/sigusr.test, which was
broken by r333614.  The trouble was that "&&" changes the command for
which "$!" gives the pid.

llvm-svn: 333620
2018-05-31 03:40:37 +00:00
Joel E. Denny 31b373963f [lit] Report line number for failed RUN command
(Relands r333584, reverted in 333592.)

When debugging test failures with -vv (or -v in the case of the
internal shell), this makes it easier to locate the RUN line that
failed.  For example, clang's test/Driver/linux-ld.c has 892 total RUN
lines, and clang's test/Driver/arm-cortex-cpus.c has 424 RUN lines
after concatenation for line continuations.

When reading the generated shell script, this also makes it easier to
locate the RUN line that produced each command.

To support reporting RUN line numbers in the case of the internal
shell, this patch extends the internal shell to support the null
command, ":", except pipelines are not supported.

To support reporting RUN line numbers in the case of windows cmd.exe
as the external shell, this patch extends -vv to set "echo on" instead
of "echo off" in bat files.  (Support for windows cmd.exe as a lit
external shell will likely be dropped later, but I found out too
late.)

Reviewed By: delcypher,	asmith, stella.stamenova, jmorse, lebedev.ri, rnk

Differential Revision: https://reviews.llvm.org/D44598

llvm-svn: 333614
2018-05-31 00:55:32 +00:00
Joel E. Denny 71792c741e Revert r333584: [lit] Report line number for failed RUN command
It breaks test-suite.

llvm-svn: 333592
2018-05-30 21:07:27 +00:00
Joel E. Denny b6423479a1 [lit] Report line number for failed RUN command
(Relands r330755 (reverted in r330848) with fix for PR37239.)

When debugging test failures with -vv (or -v in the case of the
internal shell), this makes it easier to locate the RUN line that
failed.  For example, clang's test/Driver/linux-ld.c has 892 total RUN
lines, and clang's test/Driver/arm-cortex-cpus.c has 424 RUN lines
after concatenation for line continuations.

When reading the generated shell script, this also makes it easier to
locate the RUN line that produced each command.

To support reporting RUN line numbers in the case of the internal
shell, this patch extends the internal shell to support the null
command, ":", except pipelines are not supported.

To support reporting RUN line numbers in the case of windows cmd.exe
as the external shell, this patch extends -vv to set "echo on" instead
of "echo off" in bat files.  (Support for windows cmd.exe as a lit
external shell will likely be dropped later, but I found out too
late.)

Reviewed By: delcypher,	asmith, stella.stamenova, jmorse, lebedev.ri, rnk

Differential Revision: https://reviews.llvm.org/D44598

llvm-svn: 333584
2018-05-30 19:42:27 +00:00
Chris Matthews 29770f7a62 Use quoteattr to ensure we make well formed attributes
We were making malformed XML on tests with ' in the name.  Switch to
using saxutils to set all of our attributes, so it can handle quotes
etc correctly.

llvm-svn: 333249
2018-05-25 00:31:36 +00:00
Dan Liew 6dfcc78364 [lit] Try to make `shtest-timeout.py` test more reliable by using a
larger timeout value. This really isn't very good because it will
still be susceptible to machine performance.

While we are here also fix a bug in validation of
`maxIndividualTestTime` where previously it wasn't checked if the
type was an int.

rdar://problem/40221572

llvm-svn: 332987
2018-05-22 15:06:29 +00:00
Dan Liew 9f7786855c [lit] Don't run `slow.py` in `shtest-timeout.py` test.
The program used to be used in `quick_then_slow.py` but that was
removed in r328702. The tests always run `slow.py` on its own but
this doesn't really test additional code so we'll just drop running
`slow.py` so the tests run faster.

rdar://problem/40221572

llvm-svn: 332986
2018-05-22 15:06:24 +00:00
Dan Liew 8b4d36a530 [lit] Don't check output of commands used in `shtest-timeout.py` test.
If the system is under heavy load 1 second might not be long enough
for it to produce output which could lead to spurious test failures.
What matters is that the right test cases reach a timeout.

rdar://problem/40221572

llvm-svn: 332985
2018-05-22 15:06:20 +00:00
Douglas Yung 2dd62a3d99 Mark test with "REQUIRES: shell" since it directly invokes "sh" and was failing on Windows.
llvm-svn: 332563
2018-05-17 01:36:25 +00:00
Alexander Richardson 1bffd0f741 Escape ]]> in xunit xml output
Summary:
This sequence ends the CDATA block so any characters after that are no
longer escaped. This can be fixed by replacing "]]>" with "]]]]><![CDATA[>".

Reviewers: cmatthews

Reviewed By: cmatthews

Differential Revision: https://reviews.llvm.org/D46886

llvm-svn: 332440
2018-05-16 09:00:28 +00:00
Chris Matthews 48357c43d5 remove output xml incase it is leftover from another run
llvm-svn: 332424
2018-05-16 00:37:00 +00:00
Chris Matthews 5d1014bff5 Use not to catch unexpected pass as well as remove old test results
As per review feedback, make sure we rm temp files, and make the return
code checking for lit more specific.

llvm-svn: 332423
2018-05-16 00:33:29 +00:00
Chris Matthews 811a83d036 Add the message attribute to skipped
JUnit xml allows for a message attribute to be displayed on skips. Lets
populate that with an analysis of why we skipped the test.

llvm-svn: 332156
2018-05-11 23:15:11 +00:00
Chris Matthews d1386a88dd [LIT] replace output escapes wit a cdata block
CDATA blocks don't need to have XML stuff escaped. Makes sense to wrap
output in them instead of escaping.

llvm-svn: 332116
2018-05-11 18:38:02 +00:00
Chris Matthews 7d6224d2fa Support Unsupported Tests in xunit output
We were reporting  "Unsupported" tests in xunit as passes, however since
they are not run, it make more sense to mark them as skipped. The Junit
xml standard has support for that, so lets use it.

llvm-svn: 332065
2018-05-11 00:25:43 +00:00
Chris Matthews 4855c5f717 [LIT] Move xunit tests tests into their own location, and and add failures
Failures will increase coverage.

llvm-svn: 332056
2018-05-10 22:51:28 +00:00
Chris Matthews c3f259cb6c [LIT] Add the missing file
I forgot to commit this file.

llvm-svn: 331946
2018-05-10 00:08:39 +00:00
Chris Matthews bd9ffc6243 Refactor test incase results are backwards
Looks like results can come in either way in this file.  Loosen the ordering constraints.

llvm-svn: 331945
2018-05-10 00:06:17 +00:00
Chris Matthews 069a1eb3bb [LIT] Handle xml characters in test names
Lit creates malformed xml when the test case has an & in the name.

Escape those correctly.

This also adds a test case which I will add other nasty encoding issues to in some followup commits.

llvm-svn: 331942
2018-05-09 23:48:32 +00:00
Reid Kleckner 1ca666886f Revert r330755 "[lit] Report line number for failed RUN command"
It is causing many tests to fail on Windows buildbots:
http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/10211

llvm-svn: 330848
2018-04-25 17:30:00 +00:00
Joel E. Denny 8a475307bd [lit] Report line number for failed RUN command
When debugging test failures with -vv (or -v in the case of the
internal shell), this makes it easier to locate the RUN line that
failed.  For example, clang's test/Driver/linux-ld.c has 892 total RUN
lines, and clang's test/Driver/arm-cortex-cpus.c has 424 RUN lines
after concatenation for line continuations.

When reading the generated shell script, this also makes it easier to
locate the RUN line that produced each command.

To support reporting RUN line numbers in the case of the internal
shell, this patch extends the internal shell to support the null
command, ":", except pipelines are not supported.

Reviewed By: asmith, delcypher

Differential Revision: https://reviews.llvm.org/D44598

llvm-svn: 330755
2018-04-24 18:43:25 +00:00
Dan Liew 97a60c21d4 [lit] Remove spurious `-` in invocation of lit in
`shtest-xunit-output.py` test.

Although there is no `-` file Jeremy Morse has reported to me that it
causes problems in their setup because lit tries to find it and ends up
loading an out of tree lit configuration file.

llvm-svn: 330728
2018-04-24 15:42:00 +00:00
Dan Liew 872b8ea596 [lit] Fix a bug where UNRESOLVED tests were not handled in the XUnit
XML printer.

A test has been added that tries to comprehensively test emitting
XUnit XML output for shell tests.

Differential Revision: https://reviews.llvm.org/D45567

llvm-svn: 330409
2018-04-20 10:11:41 +00:00
Dan Liew 8ade9e75b0 Revert "[lit] Temporarily disable shtest-timeout.py on darwin"
This reverts commit 771829b640a5494ab65c810dd6b4330522bf3a33 (rr328598)

Hopefully the test will now pass on the bots.

rdar://problem/38774530

llvm-svn: 328703
2018-03-28 13:55:13 +00:00
Dan Liew 7efde3c440 [lit] Remove a timing senstive part of `shtest-timeout.py`
The `shtest-timeout.py` test was failing intermittently. It looks like
the issue is that on a resource constrained system lit is unable to run
`quick_then_slow.py` twice and print out the messages the tests expects
within the one second timeout.

The underlying issue is that the test is dependent on the performance of
the host machine is a rather fragile way. This is due to hardcoding
timeout values and having assumptions that the host machine is able to
perform a certain amount of work within the hardcoded timeout values.

We could increase the timeout values but that doesn't really fix the
underlying issue. Instead this patch removes one of fragile assumptions
in the hope that this will be enough to fix the bots.
There are other fragile assumptions in this test (e.g. `quick.py` can be
executed in less than 1 second). If the bots continue to fail we'll have
to revisit this.

rdar://problem/38774530

llvm-svn: 328702
2018-03-28 13:55:08 +00:00
Mircea Trofin 56ba71b2a7 Revert "Revert "[lit] Generalized /dev/null support on Windows.""
Summary:
This reverts commit r328596.

Checking if the arguments are strings before testing if they contain "/dev/null".

Reviewers: rnk

Reviewed By: rnk

Subscribers: delcypher, llvm-commits

Differential Revision: https://reviews.llvm.org/D44914

llvm-svn: 328603
2018-03-27 01:39:17 +00:00
Jan Korous 1e0e0b077d [lit] Temporarily disable shtest-timeout.py on darwin
Disabled until fixed in order to avoid random failures on green dragon.

rdar://problem/38774530

llvm-svn: 328598
2018-03-27 00:16:28 +00:00
Mircea Trofin 373c445c24 Revert "[lit] Generalized /dev/null support on Windows."
This reverts commit ca7fdbb974384ce5a05528b22a41d46b1cc13e92.

llvm-svn: 328596
2018-03-26 23:59:39 +00:00
Mircea Trofin 88911686c8 [lit] Generalized /dev/null support on Windows.
Generalized /dev/null remapping on Windows, and added test.

Reviewers: rnk

Reviewed By: rnk

Subscribers: amccarth, zturner, delcypher, llvm-commits

Differential Revision: https://reviews.llvm.org/D44771

llvm-svn: 328589
2018-03-26 22:41:06 +00:00
Reid Kleckner 8252892951 [lit] Implement 'cat' command for internal shell
Fixes PR36449

Patch by Chamal de Silva

Differential Revision: https://reviews.llvm.org/D43501

llvm-svn: 328563
2018-03-26 18:05:12 +00:00
Brian Homerding d5c558ff21 [lit] - Allow 1 test to report multiple micro-test results to provide support for microbenchmarks.
Summary:
These changes are to allow to a Result object to have nested Result objects in
order to support microbenchmarks. Currently lit is restricted to reporting one
result object for one test, this change provides support tests that want to
report individual timings for individual kernels.

This revision is the result of the discussions in
https://reviews.llvm.org/D32272#794759,
https://reviews.llvm.org/D37421#f8003b27 and https://reviews.llvm.org/D38496.
It is a separation of the changes purposed in https://reviews.llvm.org/D40077.

This change will enable adding LCALS (Livermore Compiler Analysis Loop Suite)
collection of loop kernels to the llvm test suite using the google benchmark
library (https://reviews.llvm.org/D43319) with tracking of individual kernel
timings.

Previously microbenchmarks had been handled by using macros to section groups
of microbenchmarks together and build many executables while still getting a
grouped timing (MultiSource/TSVC). Recently the google benchmark library was
added to the test suite and utilized with a litsupport plugin. However the
limitation of 1 test 1 result limited its use to passing a runtime option to
run only 1 microbenchmark with several hand written tests
(MicroBenchmarks/XRay). This runs the same executable many times with different
hand-written tests. I will update the litsupport plugin to utilize the new
functionality (https://reviews.llvm.org/D43316).

These changes allow lit to report micro test results if desired in order to get
many precise timing results from 1 run of 1 test executable.


Reviewers: MatzeB, hfinkel, rengolin, delcypher

Differential Revision: https://reviews.llvm.org/D43314

llvm-svn: 327422
2018-03-13 16:37:59 +00:00
Lei Huang 9db7bd5cab Losen time contraint to accommodate system loads
llvm-svn: 326359
2018-02-28 20:05:24 +00:00
Max Moroz 975eacada5 [lit] Implement "-r" option for builtin "diff" command + a test using that.
Summary:
That would allow to recursively compare directories in tests using
"diff -r" on Windows in a similar way as it can be done on Linux or Mac.

Reviewers: zturner, morehouse, vsk

Reviewed By: zturner

Subscribers: kcc, llvm-commits

Differential Revision: https://reviews.llvm.org/D41776

llvm-svn: 322102
2018-01-09 18:23:34 +00:00
Ying Yi cfb08e9e6b [lit] Implement non-pipelined ‘mkdir’, ‘diff’ and ‘rm’ commands internally
Summary:
The internal shell already supports 'cd', ‘export’ and ‘echo’ commands.
This patch adds implementation of non-pipelined ‘mkdir’, ‘diff’ and ‘rm’
commands as the internal shell builtins.

Reviewed by: Zachary Turner, Reid Kleckner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39567

llvm-svn: 319528
2017-12-01 09:54:27 +00:00
Greg Bedwell 34a83f0faf Make check-lit tests respect LLVM_LIT_TOOLS_DIR
Differential Revision: https://reviews.llvm.org/D40520

llvm-svn: 319329
2017-11-29 18:05:26 +00:00
Ying Yi a0903c6e5d Reverted rL318911 since it broke the sanitizer-windows.
llvm-svn: 318914
2017-11-23 13:23:21 +00:00
Ying Yi 989c9e75a6 [lit] Implement non-pipelined ‘mkdir’, ‘diff’ and ‘rm’ commands internally
Summary:
The internal shell already supports 'cd', ‘export’ and ‘echo’ commands. 
This patch adds implementation of non-pipelined ‘mkdir’, ‘diff’ and ‘rm’ 
commands as the internal shell builtins.

Reviewers: Zachary Turner, Reid Kleckner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39567

llvm-svn: 318911
2017-11-23 12:48:41 +00:00
Jordan Rose e55d9a1403 Revert "lit.py: Add new %{shared_output(LABEL)} substitution"
This reverts r315697 and my ill-fated attempts to fix it on Windows.
I'll try again when I get access to a Windows machine.

llvm-svn: 315793
2017-10-14 04:01:27 +00:00
Jordan Rose a33a17605d lit.py: Give up and disable the new shared-output.py test on Windows
"No such file or directory: C:\\...\\tests\\Output\\shared-output.py.tmp/Output/Shared/SHARED.tmp"

And yet other forward-slashes don't seem to be causing the same
problem. I'll see if I can get ahold of a Windows machine to poke at
this directly later.

llvm-svn: 315792
2017-10-14 03:33:46 +00:00
Jordan Rose fddfb5ad4c lit.py: Previous test fix was a red herring; backslashes are escapes
I don't have access to a Windows machine at the moment, so if this
doesn't fix it I'll just revert for now.

llvm-svn: 315782
2017-10-14 00:49:19 +00:00
Jordan Rose aafbc1c4db lit.py: Fix new test harder for systems that don't use / as os.path.sep
I didn't think about '%{inputs}' having the same problem. This one
should be a fully Windows path name.

llvm-svn: 315779
2017-10-14 00:26:48 +00:00
Jordan Rose f4fd5938e7 lit.py: Fix new test for systems that don't use / as os.path.sep
llvm-svn: 315773
2017-10-13 22:46:40 +00:00
Jordan Rose 53be3224b2 lit.py: Add new %{shared_output(LABEL)} substitution
This refers to a temporary path that can be shared across all tests,
identified by a particular label. This can be used for things like
caches.

At the moment, the character set for the LABEL is limited to C
identifier characters, plus '-', '+', '=', and '.'. This is the same
set of characters currently allowed in REQUIRES clause identifiers.

llvm-svn: 315697
2017-10-13 16:12:23 +00:00