linux/lib/kunit
Uriel Guajardo 359a376081 kunit: support failure from dynamic analysis tools
Add a kunit_fail_current_test() function to fail the currently running
test, if any, with an error message.

This is largely intended for dynamic analysis tools like UBSAN and for
fakes.
E.g. say I had a fake ops struct for testing and I wanted my `free`
function to complain if it was called with an invalid argument, or
caught a double-free. Most return void and have no normal means of
signalling failure (e.g. super_operations, iommu_ops, etc.).

Key points:
* Always update current->kunit_test so anyone can use it.
  * commit 83c4e7a036 ("KUnit: KASAN Integration") only updated it for
  CONFIG_KASAN=y

* Create a new header <kunit/test-bug.h> so non-test code doesn't have
to include all of <kunit/test.h> (e.g. lib/ubsan.c)

* Forward the file and line number to make it easier to track down
failures

* Declare the helper function for nice __printf() warnings about mismatched
format strings even when KUnit is not enabled.

Example output from kunit_fail_current_test("message"):
[15:19:34] [FAILED] example_simple_test
[15:19:34]     # example_simple_test: initializing
[15:19:34]     # example_simple_test: lib/kunit/kunit-example-test.c:24: message
[15:19:34]     not ok 1 - example_simple_test

Fixed minor check patch with checkpatch --fix option:
Shuah Khan <skhan@linuxfoundation.org>

Signed-off-by: Daniel Latypov <dlatypov@google.com>
Signed-off-by: Uriel Guajardo <urielguajardo@google.com>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2021-04-02 14:19:58 -06:00
..
.kunitconfig kunit: tool: make --kunitconfig accept dirs, add lib/kunit fragment 2021-04-02 14:14:36 -06:00
assert.c kunit: make KUNIT_EXPECT_STREQ() quote values, don't print literals 2021-04-02 14:14:16 -06:00
debugfs.c kunit: add debugfs /sys/kernel/debug/kunit/<suite>/results display 2020-03-26 14:07:18 -06:00
debugfs.h kunit: add debugfs /sys/kernel/debug/kunit/<suite>/results display 2020-03-26 14:07:18 -06:00
executor.c kunit: add kunit.filter_glob cmdline option to filter suites 2021-02-08 16:09:27 -07:00
Kconfig kunit: add kunit.filter_glob cmdline option to filter suites 2021-02-08 16:09:27 -07:00
kunit-example-test.c kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
kunit-test.c kunit: add support for named resources 2020-06-26 14:12:00 -06:00
Makefile kunit: test: create a single centralized executor for all tests 2020-10-09 14:37:34 -06:00
string-stream-test.c kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
string-stream.c kunit: generalize kunit_resource API beyond allocated resources 2020-06-26 14:12:00 -06:00
string-stream.h kunit: move string-stream.h to lib/kunit 2020-01-09 16:41:05 -07:00
test.c kunit: support failure from dynamic analysis tools 2021-04-02 14:19:58 -06:00
try-catch-impl.h kunit: hide unexported try-catch interface in try-catch-impl.h 2020-01-09 16:42:09 -07:00
try-catch.c kunit: remove timeout dependence on sysctl_hung_task_timeout_seconds 2020-01-09 16:42:55 -07:00