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Message-Id: <20200305200409.239406-1-heidifahim@google.com>
Date: Thu, 5 Mar 2020 12:04:08 -0800
From: Heidi Fahim <heidifahim@...gle.com>
To: brendanhiggins@...gle.com, linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com
Cc: Heidi Fahim <heidifahim@...gle.com>
Subject: [PATCH v2 1/2] kunit: kunit_parser: make parser more robust
Previously, kunit_parser did not properly handle kunit TAP output that
- had any prefixes (generated from different configs e.g.
CONFIG_PRINTK_TIME)
- had unrelated kernel output mixed in the middle of
it, which has shown up when testing with allyesconfig
To remove prefixes, the parser looks for the first line that includes
TAP output, "TAP version 14". It then determines the length of the
string before this sequence, and strips that number of characters off
the beginning of the following lines until the last KUnit output line is
reached.
These fixes have been tested with additional tests in the
KUnitParseTest and their associated logs have also been added.
Signed-off-by: Heidi Fahim <heidifahim@...gle.com>
---
Changelog:
v2:
- addressed Brendan's comments regarding the commit message. Reverted
some of the regex where possible.
tools/testing/kunit/kunit_parser.py | 40 +++++------
tools/testing/kunit/kunit_tool_test.py | 69 +++++++++++++++++++
.../test_data/test_config_printk_time.log | 31 +++++++++
.../test_data/test_interrupted_tap_output.log | 37 ++++++++++
.../test_data/test_kernel_panic_interrupt.log | 25 +++++++
.../test_data/test_multiple_prefixes.log | 31 +++++++++
..._output_with_prefix_isolated_correctly.log | 33 +++++++++
.../kunit/test_data/test_pound_no_prefix.log | 33 +++++++++
.../kunit/test_data/test_pound_sign.log | 33 +++++++++
9 files changed, 312 insertions(+), 20 deletions(-)
create mode 100644 tools/testing/kunit/test_data/test_config_printk_time.log
create mode 100644 tools/testing/kunit/test_data/test_interrupted_tap_output.log
create mode 100644 tools/testing/kunit/test_data/test_kernel_panic_interrupt.log
create mode 100644 tools/testing/kunit/test_data/test_multiple_prefixes.log
create mode 100644 tools/testing/kunit/test_data/test_output_with_prefix_isolated_correctly.log
create mode 100644 tools/testing/kunit/test_data/test_pound_no_prefix.log
create mode 100644 tools/testing/kunit/test_data/test_pound_sign.log
diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py
index 4ffbae0f6732..adf86747b07f 100644
--- a/tools/testing/kunit/kunit_parser.py
+++ b/tools/testing/kunit/kunit_parser.py
@@ -46,19 +46,21 @@ class TestStatus(Enum):
TEST_CRASHED = auto()
NO_TESTS = auto()
-kunit_start_re = re.compile(r'^TAP version [0-9]+$')
-kunit_end_re = re.compile('List of all partitions:')
+kunit_start_re = re.compile(r'TAP version [0-9]+$')
+kunit_end_re = re.compile('(List of all partitions:|'
+ 'Kernel panic - not syncing: VFS:|reboot: System halted)')
def isolate_kunit_output(kernel_output):
started = False
for line in kernel_output:
- if kunit_start_re.match(line):
+ if kunit_start_re.search(line):
+ prefix_len = len(line.split('TAP version')[0])
started = True
- yield line
- elif kunit_end_re.match(line):
+ yield line[prefix_len:] if prefix_len > 0 else line
+ elif kunit_end_re.search(line):
break
elif started:
- yield line
+ yield line[prefix_len:] if prefix_len > 0 else line
def raw_output(kernel_output):
for line in kernel_output:
@@ -108,18 +110,16 @@ OK_NOT_OK_SUBTEST = re.compile(r'^\t(ok|not ok) [0-9]+ - (.*)$')
OK_NOT_OK_MODULE = re.compile(r'^(ok|not ok) [0-9]+ - (.*)$')
-def parse_ok_not_ok_test_case(lines: List[str],
- test_case: TestCase,
- expecting_test_case: bool) -> bool:
+def parse_ok_not_ok_test_case(lines: List[str], test_case: TestCase) -> bool:
save_non_diagnositic(lines, test_case)
if not lines:
- if expecting_test_case:
- test_case.status = TestStatus.TEST_CRASHED
- return True
- else:
- return False
+ test_case.status = TestStatus.TEST_CRASHED
+ return True
line = lines[0]
match = OK_NOT_OK_SUBTEST.match(line)
+ while not match and lines:
+ line = lines.pop(0)
+ match = OK_NOT_OK_SUBTEST.match(line)
if match:
test_case.log.append(lines.pop(0))
test_case.name = match.group(2)
@@ -150,12 +150,12 @@ def parse_diagnostic(lines: List[str], test_case: TestCase) -> bool:
else:
return False
-def parse_test_case(lines: List[str], expecting_test_case: bool) -> TestCase:
+def parse_test_case(lines: List[str]) -> TestCase:
test_case = TestCase()
save_non_diagnositic(lines, test_case)
while parse_diagnostic(lines, test_case):
pass
- if parse_ok_not_ok_test_case(lines, test_case, expecting_test_case):
+ if parse_ok_not_ok_test_case(lines, test_case):
return test_case
else:
return None
@@ -234,11 +234,11 @@ def parse_test_suite(lines: List[str]) -> TestSuite:
expected_test_case_num = parse_subtest_plan(lines)
if not expected_test_case_num:
return None
- test_case = parse_test_case(lines, expected_test_case_num > 0)
- expected_test_case_num -= 1
- while test_case:
+ while expected_test_case_num > 0:
+ test_case = parse_test_case(lines)
+ if not test_case:
+ break
test_suite.cases.append(test_case)
- test_case = parse_test_case(lines, expected_test_case_num > 0)
expected_test_case_num -= 1
if parse_ok_not_ok_test_suite(lines, test_suite):
test_suite.status = bubble_up_test_case_errors(test_suite)
diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py
index cba97756ac4a..0efae697f396 100755
--- a/tools/testing/kunit/kunit_tool_test.py
+++ b/tools/testing/kunit/kunit_tool_test.py
@@ -108,6 +108,36 @@ class KUnitParserTest(unittest.TestCase):
self.assertContains('ok 1 - example', result)
file.close()
+ def test_output_with_prefix_isolated_correctly(self):
+ log_path = get_absolute_path(
+ 'test_data/test_pound_sign.log')
+ with open(log_path) as file:
+ result = kunit_parser.isolate_kunit_output(file.readlines())
+ self.assertContains('TAP version 14\n', result)
+ self.assertContains(' # Subtest: kunit-resource-test', result)
+ self.assertContains(' 1..5', result)
+ self.assertContains(' ok 1 - kunit_resource_test_init_resources', result)
+ self.assertContains(' ok 2 - kunit_resource_test_alloc_resource', result)
+ self.assertContains(' ok 3 - kunit_resource_test_destroy_resource', result)
+ self.assertContains(' foo bar #', result)
+ self.assertContains(' ok 4 - kunit_resource_test_cleanup_resources', result)
+ self.assertContains(' ok 5 - kunit_resource_test_proper_free_ordering', result)
+ self.assertContains('ok 1 - kunit-resource-test', result)
+ self.assertContains(' foo bar # non-kunit output', result)
+ self.assertContains(' # Subtest: kunit-try-catch-test', result)
+ self.assertContains(' 1..2', result)
+ self.assertContains(' ok 1 - kunit_test_try_catch_successful_try_no_catch',
+ result)
+ self.assertContains(' ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch',
+ result)
+ self.assertContains('ok 2 - kunit-try-catch-test', result)
+ self.assertContains(' # Subtest: string-stream-test', result)
+ self.assertContains(' 1..3', result)
+ self.assertContains(' ok 1 - string_stream_test_empty_on_creation', result)
+ self.assertContains(' ok 2 - string_stream_test_not_empty_after_add', result)
+ self.assertContains(' ok 3 - string_stream_test_get_string', result)
+ self.assertContains('ok 3 - string-stream-test', result)
+
def test_parse_successful_test_log(self):
all_passed_log = get_absolute_path(
'test_data/test_is_test_passed-all_passed.log')
@@ -150,6 +180,45 @@ class KUnitParserTest(unittest.TestCase):
result.status)
file.close()
+ def test_ignores_prefix_printk_time(self):
+ prefix_log = get_absolute_path(
+ 'test_data/test_config_printk_time.log')
+ with open(prefix_log) as file:
+ result = kunit_parser.parse_run_tests(file.readlines())
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
+
+ def test_ignores_multiple_prefixes(self):
+ prefix_log = get_absolute_path(
+ 'test_data/test_multiple_prefixes.log')
+ with open(prefix_log) as file:
+ result = kunit_parser.parse_run_tests(file.readlines())
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
+
+ def test_prefix_mixed_kernel_output(self):
+ mixed_prefix_log = get_absolute_path(
+ 'test_data/test_interrupted_tap_output.log')
+ with open(mixed_prefix_log) as file:
+ result = kunit_parser.parse_run_tests(file.readlines())
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
+
+ def test_prefix_poundsign(self):
+ pound_log = get_absolute_path('test_data/test_pound_sign.log')
+ with open(pound_log) as file:
+ result = kunit_parser.parse_run_tests(file.readlines())
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
+
+ def test_kernel_panic_end(self):
+ panic_log = get_absolute_path('test_data/test_kernel_panic_interrupt.log')
+ with open(panic_log) as file:
+ result = kunit_parser.parse_run_tests(file.readlines())
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
+
+ def test_pound_no_prefix(self):
+ pound_log = get_absolute_path('test_data/test_pound_no_prefix.log')
+ with open(pound_log) as file:
+ result = kunit_parser.parse_run_tests(file.readlines())
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
+
class StrContains(str):
def __eq__(self, other):
return self in other
diff --git a/tools/testing/kunit/test_data/test_config_printk_time.log b/tools/testing/kunit/test_data/test_config_printk_time.log
new file mode 100644
index 000000000000..c02ca773946d
--- /dev/null
+++ b/tools/testing/kunit/test_data/test_config_printk_time.log
@@ -0,0 +1,31 @@
+[ 0.060000] printk: console [mc-1] enabled
+[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
+[ 0.060000] TAP version 14
+[ 0.060000] # Subtest: kunit-resource-test
+[ 0.060000] 1..5
+[ 0.060000] ok 1 - kunit_resource_test_init_resources
+[ 0.060000] ok 2 - kunit_resource_test_alloc_resource
+[ 0.060000] ok 3 - kunit_resource_test_destroy_resource
+[ 0.060000] ok 4 - kunit_resource_test_cleanup_resources
+[ 0.060000] ok 5 - kunit_resource_test_proper_free_ordering
+[ 0.060000] ok 1 - kunit-resource-test
+[ 0.060000] # Subtest: kunit-try-catch-test
+[ 0.060000] 1..2
+[ 0.060000] ok 1 - kunit_test_try_catch_successful_try_no_catch
+[ 0.060000] ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch
+[ 0.060000] ok 2 - kunit-try-catch-test
+[ 0.060000] # Subtest: string-stream-test
+[ 0.060000] 1..3
+[ 0.060000] ok 1 - string_stream_test_empty_on_creation
+[ 0.060000] ok 2 - string_stream_test_not_empty_after_add
+[ 0.060000] ok 3 - string_stream_test_get_string
+[ 0.060000] ok 3 - string-stream-test
+[ 0.060000] List of all partitions:
+[ 0.060000] No filesystem could mount root, tried:
+[ 0.060000]
+[ 0.060000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
+[ 0.060000] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.0-rc1-gea2dd7c0875e-dirty #2
+[ 0.060000] Stack:
+[ 0.060000] 602086f8 601bc260 705c0000 705c0000
+[ 0.060000] 602086f8 6005fcec 705c0000 6002c6ab
+[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
diff --git a/tools/testing/kunit/test_data/test_interrupted_tap_output.log b/tools/testing/kunit/test_data/test_interrupted_tap_output.log
new file mode 100644
index 000000000000..5c73fb3a1c6f
--- /dev/null
+++ b/tools/testing/kunit/test_data/test_interrupted_tap_output.log
@@ -0,0 +1,37 @@
+[ 0.060000] printk: console [mc-1] enabled
+[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
+[ 0.060000] TAP version 14
+[ 0.060000] # Subtest: kunit-resource-test
+[ 0.060000] 1..5
+[ 0.060000] ok 1 - kunit_resource_test_init_resources
+[ 0.060000] ok 2 - kunit_resource_test_alloc_resource
+[ 0.060000] ok 3 - kunit_resource_test_destroy_resource
+[ 0.060000] kAFS: Red Hat AFS client v0.1 registering.
+[ 0.060000] FS-Cache: Netfs 'afs' registered for caching
+[ 0.060000] *** VALIDATE kAFS ***
+[ 0.060000] Btrfs loaded, crc32c=crc32c-generic, debug=on, assert=on, integrity-checker=on, ref-verify=on
+[ 0.060000] BTRFS: selftest: sectorsize: 4096 nodesize: 4096
+[ 0.060000] BTRFS: selftest: running btrfs free space cache tests
+[ 0.060000] ok 4 - kunit_resource_test_cleanup_resources
+[ 0.060000] ok 5 - kunit_resource_test_proper_free_ordering
+[ 0.060000] ok 1 - kunit-resource-test
+[ 0.060000] # Subtest: kunit-try-catch-test
+[ 0.060000] 1..2
+[ 0.060000] ok 1 - kunit_test_try_catch_successful_try_no_catch
+[ 0.060000] ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch
+[ 0.060000] ok 2 - kunit-try-catch-test
+[ 0.060000] # Subtest: string-stream-test
+[ 0.060000] 1..3
+[ 0.060000] ok 1 - string_stream_test_empty_on_creation
+[ 0.060000] ok 2 - string_stream_test_not_empty_after_add
+[ 0.060000] ok 3 - string_stream_test_get_string
+[ 0.060000] ok 3 - string-stream-test
+[ 0.060000] List of all partitions:
+[ 0.060000] No filesystem could mount root, tried:
+[ 0.060000]
+[ 0.060000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
+[ 0.060000] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.0-rc1-gea2dd7c0875e-dirty #2
+[ 0.060000] Stack:
+[ 0.060000] 602086f8 601bc260 705c0000 705c0000
+[ 0.060000] 602086f8 6005fcec 705c0000 6002c6ab
+[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
diff --git a/tools/testing/kunit/test_data/test_kernel_panic_interrupt.log b/tools/testing/kunit/test_data/test_kernel_panic_interrupt.log
new file mode 100644
index 000000000000..c045eee75f27
--- /dev/null
+++ b/tools/testing/kunit/test_data/test_kernel_panic_interrupt.log
@@ -0,0 +1,25 @@
+[ 0.060000] printk: console [mc-1] enabled
+[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
+[ 0.060000] TAP version 14
+[ 0.060000] # Subtest: kunit-resource-test
+[ 0.060000] 1..5
+[ 0.060000] ok 1 - kunit_resource_test_init_resources
+[ 0.060000] ok 2 - kunit_resource_test_alloc_resource
+[ 0.060000] ok 3 - kunit_resource_test_destroy_resource
+[ 0.060000] ok 4 - kunit_resource_test_cleanup_resources
+[ 0.060000] ok 5 - kunit_resource_test_proper_free_ordering
+[ 0.060000] ok 1 - kunit-resource-test
+[ 0.060000] # Subtest: kunit-try-catch-test
+[ 0.060000] 1..2
+[ 0.060000] ok 1 - kunit_test_try_catch_successful_try_no_catch
+[ 0.060000] ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch
+[ 0.060000] ok 2 - kunit-try-catch-test
+[ 0.060000] # Subtest: string-stream-test
+[ 0.060000] 1..3
+[ 0.060000] ok 1 - string_stream_test_empty_on_creation
+[ 0.060000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
+[ 0.060000] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.0-rc1-gea2dd7c0875e-dirty #2
+[ 0.060000] Stack:
+[ 0.060000] 602086f8 601bc260 705c0000 705c0000
+[ 0.060000] 602086f8 6005fcec 705c0000 6002c6ab
+[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
diff --git a/tools/testing/kunit/test_data/test_multiple_prefixes.log b/tools/testing/kunit/test_data/test_multiple_prefixes.log
new file mode 100644
index 000000000000..bc48407dcc36
--- /dev/null
+++ b/tools/testing/kunit/test_data/test_multiple_prefixes.log
@@ -0,0 +1,31 @@
+[ 0.060000][ T1] printk: console [mc-1] enabled
+[ 0.060000][ T1] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
+[ 0.060000][ T1] TAP version 14
+[ 0.060000][ T1] # Subtest: kunit-resource-test
+[ 0.060000][ T1] 1..5
+[ 0.060000][ T1] ok 1 - kunit_resource_test_init_resources
+[ 0.060000][ T1] ok 2 - kunit_resource_test_alloc_resource
+[ 0.060000][ T1] ok 3 - kunit_resource_test_destroy_resource
+[ 0.060000][ T1] ok 4 - kunit_resource_test_cleanup_resources
+[ 0.060000][ T1] ok 5 - kunit_resource_test_proper_free_ordering
+[ 0.060000][ T1] ok 1 - kunit-resource-test
+[ 0.060000][ T1] # Subtest: kunit-try-catch-test
+[ 0.060000][ T1] 1..2
+[ 0.060000][ T1] ok 1 - kunit_test_try_catch_successful_try_no_catch
+[ 0.060000][ T1] ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch
+[ 0.060000][ T1] ok 2 - kunit-try-catch-test
+[ 0.060000][ T1] # Subtest: string-stream-test
+[ 0.060000][ T1] 1..3
+[ 0.060000][ T1] ok 1 - string_stream_test_empty_on_creation
+[ 0.060000][ T1] ok 2 - string_stream_test_not_empty_after_add
+[ 0.060000][ T1] ok 3 - string_stream_test_get_string
+[ 0.060000][ T1] ok 3 - string-stream-test
+[ 0.060000][ T1] List of all partitions:
+[ 0.060000][ T1] No filesystem could mount root, tried:
+[ 0.060000][ T1]
+[ 0.060000][ T1] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
+[ 0.060000][ T1] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.0-rc1-gea2dd7c0875e-dirty #2
+[ 0.060000][ T1] Stack:
+[ 0.060000][ T1] 602086f8 601bc260 705c0000 705c0000
+[ 0.060000][ T1] 602086f8 6005fcec 705c0000 6002c6ab
+[ 0.060000][ T1] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
diff --git a/tools/testing/kunit/test_data/test_output_with_prefix_isolated_correctly.log b/tools/testing/kunit/test_data/test_output_with_prefix_isolated_correctly.log
new file mode 100644
index 000000000000..0f87cdabebb0
--- /dev/null
+++ b/tools/testing/kunit/test_data/test_output_with_prefix_isolated_correctly.log
@@ -0,0 +1,33 @@
+[ 0.060000] printk: console [mc-1] enabled
+[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
+[ 0.060000] TAP version 14
+[ 0.060000] # Subtest: kunit-resource-test
+[ 0.060000] 1..5
+[ 0.060000] ok 1 - kunit_resource_test_init_resources
+[ 0.060000] ok 2 - kunit_resource_test_alloc_resource
+[ 0.060000] ok 3 - kunit_resource_test_destroy_resource
+[ 0.060000] foo bar #
+[ 0.060000] ok 4 - kunit_resource_test_cleanup_resources
+[ 0.060000] ok 5 - kunit_resource_test_proper_free_ordering
+[ 0.060000] ok 1 - kunit-resource-test
+[ 0.060000] foo bar # non-kunit output
+[ 0.060000] # Subtest: kunit-try-catch-test
+[ 0.060000] 1..2
+[ 0.060000] ok 1 - kunit_test_try_catch_successful_try_no_catch
+[ 0.060000] ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch
+[ 0.060000] ok 2 - kunit-try-catch-test
+[ 0.060000] # Subtest: string-stream-test
+[ 0.060000] 1..3
+[ 0.060000] ok 1 - string_stream_test_empty_on_creation
+[ 0.060000] ok 2 - string_stream_test_not_empty_after_add
+[ 0.060000] ok 3 - string_stream_test_get_string
+[ 0.060000] ok 3 - string-stream-test
+[ 0.060000] List of all partitions:
+[ 0.060000] No filesystem could mount root, tried:
+[ 0.060000]
+[ 0.060000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
+[ 0.060000] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.0-rc1-gea2dd7c0875e-dirty #2
+[ 0.060000] Stack:
+[ 0.060000] 602086f8 601bc260 705c0000 705c0000
+[ 0.060000] 602086f8 6005fcec 705c0000 6002c6ab
+[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
diff --git a/tools/testing/kunit/test_data/test_pound_no_prefix.log b/tools/testing/kunit/test_data/test_pound_no_prefix.log
new file mode 100644
index 000000000000..2ceb360be7d5
--- /dev/null
+++ b/tools/testing/kunit/test_data/test_pound_no_prefix.log
@@ -0,0 +1,33 @@
+ printk: console [mc-1] enabled
+ random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
+ TAP version 14
+ # Subtest: kunit-resource-test
+ 1..5
+ ok 1 - kunit_resource_test_init_resources
+ ok 2 - kunit_resource_test_alloc_resource
+ ok 3 - kunit_resource_test_destroy_resource
+ foo bar #
+ ok 4 - kunit_resource_test_cleanup_resources
+ ok 5 - kunit_resource_test_proper_free_ordering
+ ok 1 - kunit-resource-test
+ foo bar # non-kunit output
+ # Subtest: kunit-try-catch-test
+ 1..2
+ ok 1 - kunit_test_try_catch_successful_try_no_catch
+ ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch
+ ok 2 - kunit-try-catch-test
+ # Subtest: string-stream-test
+ 1..3
+ ok 1 - string_stream_test_empty_on_creation
+ ok 2 - string_stream_test_not_empty_after_add
+ ok 3 - string_stream_test_get_string
+ ok 3 - string-stream-test
+ List of all partitions:
+ No filesystem could mount root, tried:
+
+ Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
+ CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.0-rc1-gea2dd7c0875e-dirty #2
+ Stack:
+ 602086f8 601bc260 705c0000 705c0000
+ 602086f8 6005fcec 705c0000 6002c6ab
+ 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
diff --git a/tools/testing/kunit/test_data/test_pound_sign.log b/tools/testing/kunit/test_data/test_pound_sign.log
new file mode 100644
index 000000000000..0f87cdabebb0
--- /dev/null
+++ b/tools/testing/kunit/test_data/test_pound_sign.log
@@ -0,0 +1,33 @@
+[ 0.060000] printk: console [mc-1] enabled
+[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
+[ 0.060000] TAP version 14
+[ 0.060000] # Subtest: kunit-resource-test
+[ 0.060000] 1..5
+[ 0.060000] ok 1 - kunit_resource_test_init_resources
+[ 0.060000] ok 2 - kunit_resource_test_alloc_resource
+[ 0.060000] ok 3 - kunit_resource_test_destroy_resource
+[ 0.060000] foo bar #
+[ 0.060000] ok 4 - kunit_resource_test_cleanup_resources
+[ 0.060000] ok 5 - kunit_resource_test_proper_free_ordering
+[ 0.060000] ok 1 - kunit-resource-test
+[ 0.060000] foo bar # non-kunit output
+[ 0.060000] # Subtest: kunit-try-catch-test
+[ 0.060000] 1..2
+[ 0.060000] ok 1 - kunit_test_try_catch_successful_try_no_catch
+[ 0.060000] ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch
+[ 0.060000] ok 2 - kunit-try-catch-test
+[ 0.060000] # Subtest: string-stream-test
+[ 0.060000] 1..3
+[ 0.060000] ok 1 - string_stream_test_empty_on_creation
+[ 0.060000] ok 2 - string_stream_test_not_empty_after_add
+[ 0.060000] ok 3 - string_stream_test_get_string
+[ 0.060000] ok 3 - string-stream-test
+[ 0.060000] List of all partitions:
+[ 0.060000] No filesystem could mount root, tried:
+[ 0.060000]
+[ 0.060000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
+[ 0.060000] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.0-rc1-gea2dd7c0875e-dirty #2
+[ 0.060000] Stack:
+[ 0.060000] 602086f8 601bc260 705c0000 705c0000
+[ 0.060000] 602086f8 6005fcec 705c0000 6002c6ab
+[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
--
2.25.0.265.gbab2e86ba0-goog
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