| Message ID | 1585232710-322-1-git-send-email-alan.maguire@oracle.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | kunit: add debugfs representation to show results | expand |
On 3/26/20 8:25 AM, Alan Maguire wrote: > When kunit tests are run on native (i.e. non-UML) environments, the results > of test execution are often intermixed with dmesg output. This patch > series attempts to solve this by providing a debugfs representation > of the results of the last test run, available as > > /sys/kernel/debug/kunit/<testsuite>/results > > Changes since v7: > > - renamed KUNIT_INDENT[2] to KUNIT_SUBTEST_INDENT, KUNIT_SUBSUBTEST_INDENT > and added more description to their definitions to clarify why they > are defined as they are (Shuah) > - defined KUNIT_SUBSUBTEST_INDENT directly as 8 spaces to avoid > checkpatch error (Shuah) > > Changes since v6: > > - fixed regexp parsing in kunit_parser.py to ensure test results are read > successfully with 4-space indentation (Brendan, patch 3) > > Changes since v5: > > - replaced undefined behaviour use of snprintf(buf, ..., buf) in > kunit_log() with a function to append string to existing log > (Frank, patch 1) > - added clarification on log size limitations to documentation > (Frank, patch 4) > > Changes since v4: > > - added suite-level log expectations to kunit log test (Brendan, patch 2) > - added log expectations (of it being NULL) for case where > CONFIG_KUNIT_DEBUGFS=n to kunit log test (patch 2) > - added patch 3 which replaces subtest tab indentation with 4 space > indentation as per TAP 14 spec (Frank, patch 3) > > Changes since v3: > > - added CONFIG_KUNIT_DEBUGFS to support conditional compilation of debugfs > representation, including string logging (Frank, patch 1) > - removed unneeded NULL check for test_case in > kunit_suite_for_each_test_case() (Frank, patch 1) > - added kunit log test to verify logging multiple strings works > (Frank, patch 2) > - rephrased description of results file (Frank, patch 3) > > Changes since v2: > > - updated kunit_status2str() to kunit_status_to_string() and made it > static inline in include/kunit/test.h (Brendan) > - added log string to struct kunit_suite and kunit_case, with log > pointer in struct kunit pointing at the case log. This allows us > to collect kunit_[err|info|warning]() messages at the same time > as we printk() them. This solves for the most part the sharing > of log messages between test execution and debugfs since we > just print the suite log (which contains the test suite preamble) > and the individual test logs. The only exception is the suite-level > status, which we cannot store in the suite log as it would mean > we'd print the suite and its status prior to the suite's results. > (Brendan, patch 1) > - dropped debugfs-based kunit run patch for now so as not to cause > problems with tests currently under development (Brendan) > - fixed doc issues with code block (Brendan, patch 3) > > Changes since v1: > - trimmed unneeded include files in lib/kunit/debugfs.c (Greg) > - renamed global debugfs functions to be prefixed with kunit_ (Greg) > - removed error checking for debugfs operations (Greg) > > Alan Maguire (4): > kunit: add debugfs /sys/kernel/debug/kunit/<suite>/results display > kunit: add log test > kunit: subtests should be indented 4 spaces according to TAP > kunit: update documentation to describe debugfs representation > > Documentation/dev-tools/kunit/usage.rst | 14 +++ > include/kunit/test.h | 63 ++++++++++++-- > lib/kunit/Kconfig | 8 ++ > lib/kunit/Makefile | 4 + > lib/kunit/assert.c | 79 ++++++++--------- > lib/kunit/debugfs.c | 116 +++++++++++++++++++++++++ > lib/kunit/debugfs.h | 30 +++++++ > lib/kunit/kunit-test.c | 44 +++++++++- > lib/kunit/test.c | 148 +++++++++++++++++++++++++------- > tools/testing/kunit/kunit_parser.py | 10 +-- > 10 files changed, 430 insertions(+), 86 deletions(-) > create mode 100644 lib/kunit/debugfs.c > create mode 100644 lib/kunit/debugfs.h > Thanks. Applied to linux-kselftest kunit for 5.7-rc1. thanks, -- Shuah