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This commit is contained in:
Carsten Grohmann 2022-06-22 21:16:21 +02:00
parent 20df3fa4f9
commit 6d8851b1d6
3 changed files with 983 additions and 639 deletions
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1136
OOMAnalyser.py
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3
pyproject.toml Normal file
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@ -0,0 +1,3 @@
[tool.black]
line-length = 88
target-version = ['py37']

453
test.py
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@ -21,7 +21,6 @@ import OOMAnalyser
class MyRequestHandler(http.server.SimpleHTTPRequestHandler):
def __init__(self, request, client_address, server, directory=None):
self.directory = os.getcwd()
super().__init__(request, client_address, server)
@ -37,7 +36,6 @@ class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
class TestBase(unittest.TestCase):
def get_lines(self, text, count):
"""
Return the number of lines specified by count from given text
@ -50,7 +48,7 @@ class TestBase(unittest.TestCase):
lines.reverse()
count = count * -1
lines = lines[:count]
res = '\n'.join(lines)
res = "\n".join(lines)
return res
def get_first_line(self, text):
@ -75,16 +73,16 @@ class TestInBrowser(TestBase):
warnings.simplefilter("ignore", ResourceWarning)
ThreadedTCPServer.allow_reuse_address = True
self.httpd = ThreadedTCPServer(('127.0.0.1', 8000), MyRequestHandler)
self.httpd = ThreadedTCPServer(("127.0.0.1", 8000), MyRequestHandler)
server_thread = threading.Thread(target=self.httpd.serve_forever, args=(0.1,))
server_thread.daemon = True
server_thread.start()
# silent Webdriver Manager
os.environ['WDM_LOG_LEVEL'] = '0'
os.environ["WDM_LOG_LEVEL"] = "0"
# store driver locally
os.environ['WDM_LOCAL'] = '1'
os.environ["WDM_LOCAL"] = "1"
s = Service(ChromeDriverManager().install())
self.driver = webdriver.Chrome(service=s)
@ -96,9 +94,11 @@ class TestInBrowser(TestBase):
self.httpd.server_close()
def assert_on_warn(self):
notify_box = self.driver.find_element(By.ID, 'notify_box')
notify_box = self.driver.find_element(By.ID, "notify_box")
try:
warning = notify_box.find_element(By.CLASS_NAME, 'js-notify_box__msg--warning')
warning = notify_box.find_element(
By.CLASS_NAME, "js-notify_box__msg--warning"
)
except NoSuchElementException:
pass
else:
@ -109,9 +109,9 @@ class TestInBrowser(TestBase):
if error:
self.fail('Unexpected error message: "%s"' % error)
for event in self.driver.get_log('browser'):
for event in self.driver.get_log("browser"):
# ignore favicon.ico errors
if 'favicon.ico' in event['message']:
if "favicon.ico" in event["message"]:
continue
self.fail('Error on browser console reported: "%s"' % event)
@ -129,9 +129,9 @@ class TestInBrowser(TestBase):
@rtype: str
"""
notify_box = self.driver.find_element(By.ID, 'notify_box')
notify_box = self.driver.find_element(By.ID, "notify_box")
try:
notify_box.find_element(By.CLASS_NAME, 'js-notify_box__msg--error')
notify_box.find_element(By.CLASS_NAME, "js-notify_box__msg--error")
except NoSuchElementException:
return ""
return notify_box.text
@ -141,7 +141,9 @@ class TestInBrowser(TestBase):
if reset.is_displayed():
reset.click()
else:
new_analysis = self.driver.find_element(By.XPATH, '//a[contains(text(), "Step 1 - Enter your OOM message")]')
new_analysis = self.driver.find_element(
By.XPATH, '//a[contains(text(), "Step 1 - Enter your OOM message")]'
)
new_analysis.click()
self.assert_on_warn_error()
@ -151,14 +153,19 @@ class TestInBrowser(TestBase):
:param str text: OOM text to analyse
"""
textarea = self.driver.find_element(By.ID, 'textarea_oom')
self.assertEqual(textarea.get_attribute('value'), '', 'Empty textarea expected')
textarea = self.driver.find_element(By.ID, "textarea_oom")
self.assertEqual(textarea.get_attribute("value"), "", "Empty textarea expected")
textarea.send_keys(text)
self.assertNotEqual(textarea.get_attribute('value'), '', 'Missing OOM text in textarea')
self.assertNotEqual(
textarea.get_attribute("value"), "", "Missing OOM text in textarea"
)
h3_summary = self.driver.find_element(By.XPATH, '//h3[text()="Summary"]')
self.assertFalse(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be not displayed")
self.assertFalse(
h3_summary.is_displayed(),
"Analysis details incl. <h3>Summary</h3> should be not displayed",
)
self.click_analyse()
@ -166,89 +173,144 @@ class TestInBrowser(TestBase):
"""Check the results of the analysis of the RHEL7 example"""
self.assert_on_warn_error()
h3_summary = self.driver.find_element(By.XPATH, '//h3[text()="Summary"]')
self.assertTrue(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be displayed")
self.assertTrue(
h3_summary.is_displayed(),
"Analysis details incl. <h3>Summary</h3> should be displayed",
)
trigger_proc_name = self.driver.find_element(By.CLASS_NAME, 'trigger_proc_name')
self.assertEqual(trigger_proc_name.text, 'sed', 'Unexpected trigger process name')
trigger_proc_pid = self.driver.find_element(By.CLASS_NAME, 'trigger_proc_pid')
self.assertEqual(trigger_proc_pid.text, '29481', 'Unexpected trigger process pid')
trigger_proc_gfp_mask = self.driver.find_element(By.CLASS_NAME, 'trigger_proc_gfp_mask')
self.assertEqual(trigger_proc_gfp_mask.text,
'0x201da (GFP_KERNEL | GFP_USER | GFP_HIGHUSER | '
'GFP_HIGHUSER_MOVABLE | __GFP_RECLAIMABLE | __GFP_COLD)',
'Unexpected GFP Mask')
trigger_proc_name = self.driver.find_element(By.CLASS_NAME, "trigger_proc_name")
self.assertEqual(
trigger_proc_name.text, "sed", "Unexpected trigger process name"
)
trigger_proc_pid = self.driver.find_element(By.CLASS_NAME, "trigger_proc_pid")
self.assertEqual(
trigger_proc_pid.text, "29481", "Unexpected trigger process pid"
)
trigger_proc_gfp_mask = self.driver.find_element(
By.CLASS_NAME, "trigger_proc_gfp_mask"
)
self.assertEqual(
trigger_proc_gfp_mask.text,
"0x201da (GFP_KERNEL | GFP_USER | GFP_HIGHUSER | "
"GFP_HIGHUSER_MOVABLE | __GFP_RECLAIMABLE | __GFP_COLD)",
"Unexpected GFP Mask",
)
killed_proc_score = self.driver.find_element(By.CLASS_NAME, 'killed_proc_score')
self.assertEqual(killed_proc_score.text, '651', 'Unexpected OOM score of killed process')
killed_proc_score = self.driver.find_element(By.CLASS_NAME, "killed_proc_score")
self.assertEqual(
killed_proc_score.text, "651", "Unexpected OOM score of killed process"
)
swap_cache_kb = self.driver.find_element(By.CLASS_NAME, 'swap_cache_kb')
self.assertEqual(swap_cache_kb.text, '45368 kBytes')
swap_used_kb = self.driver.find_element(By.CLASS_NAME, 'swap_used_kb')
self.assertEqual(swap_used_kb.text, '8343236 kBytes')
swap_free_kb = self.driver.find_element(By.CLASS_NAME, 'swap_free_kb')
self.assertEqual(swap_free_kb.text, '0 kBytes')
swap_total_kb = self.driver.find_element(By.CLASS_NAME, 'swap_total_kb')
self.assertEqual(swap_total_kb.text, '8388604 kBytes')
swap_cache_kb = self.driver.find_element(By.CLASS_NAME, "swap_cache_kb")
self.assertEqual(swap_cache_kb.text, "45368 kBytes")
swap_used_kb = self.driver.find_element(By.CLASS_NAME, "swap_used_kb")
self.assertEqual(swap_used_kb.text, "8343236 kBytes")
swap_free_kb = self.driver.find_element(By.CLASS_NAME, "swap_free_kb")
self.assertEqual(swap_free_kb.text, "0 kBytes")
swap_total_kb = self.driver.find_element(By.CLASS_NAME, "swap_total_kb")
self.assertEqual(swap_total_kb.text, "8388604 kBytes")
explanation = self.driver.find_element(By.ID, 'explanation')
self.assertTrue('OOM killer was automatically triggered' in explanation.text,
'Missing text "OOM killer was automatically triggered"')
explanation = self.driver.find_element(By.ID, "explanation")
self.assertTrue(
"OOM killer was automatically triggered" in explanation.text,
'Missing text "OOM killer was automatically triggered"',
)
explanation = self.driver.find_element(By.ID, 'explanation')
self.assertTrue("system has 33519336 kBytes physical memory and 8388604 kBytes swap space." in explanation.text,
"Physical and swap memory in summary not found")
self.assertTrue("That's 41907940 kBytes total." in explanation.text,
"Total memory in summary not found")
self.assertTrue("94% (31705788 kBytes out of 33519336 kBytes) physical memory" in explanation.text,
"Used physical memory in summary not found")
self.assertTrue("99% (8343236 kBytes out of 8388604 kBytes) swap space" in explanation.text,
"Used swap space in summary not found")
explanation = self.driver.find_element(By.ID, "explanation")
self.assertTrue(
"system has 33519336 kBytes physical memory and 8388604 kBytes swap space."
in explanation.text,
"Physical and swap memory in summary not found",
)
self.assertTrue(
"That's 41907940 kBytes total." in explanation.text,
"Total memory in summary not found",
)
self.assertTrue(
"94% (31705788 kBytes out of 33519336 kBytes) physical memory"
in explanation.text,
"Used physical memory in summary not found",
)
self.assertTrue(
"99% (8343236 kBytes out of 8388604 kBytes) swap space" in explanation.text,
"Used swap space in summary not found",
)
head = self.driver.find_element(By.ID, 'pstable_header')
self.assertTrue('Page Table Entries' in head.text, 'Missing column head line "Page Table Entries"')
head = self.driver.find_element(By.ID, "pstable_header")
self.assertTrue(
"Page Table Entries" in head.text,
'Missing column head line "Page Table Entries"',
)
self.check_swap_active()
def check_results_ubuntu2110(self):
"""Check the results of the analysis of the Ubuntu example"""
trigger_proc_gfp_mask = self.driver.find_element(By.CLASS_NAME, 'trigger_proc_gfp_mask')
self.assertEqual(trigger_proc_gfp_mask.text, '0xcc0 (GFP_KERNEL)', 'Unexpected GFP Mask')
trigger_proc_gfp_mask = self.driver.find_element(
By.CLASS_NAME, "trigger_proc_gfp_mask"
)
self.assertEqual(
trigger_proc_gfp_mask.text, "0xcc0 (GFP_KERNEL)", "Unexpected GFP Mask"
)
dirty_pages = self.driver.find_element(By.CLASS_NAME, 'dirty_pages')
self.assertEqual(dirty_pages.text, '633 pages', 'Unexpected number of dirty pages')
dirty_pages = self.driver.find_element(By.CLASS_NAME, "dirty_pages")
self.assertEqual(
dirty_pages.text, "633 pages", "Unexpected number of dirty pages"
)
ram_pages = self.driver.find_element(By.CLASS_NAME, 'ram_pages')
self.assertEqual(ram_pages.text, '524158 pages', 'Unexpected number of RAM pages')
ram_pages = self.driver.find_element(By.CLASS_NAME, "ram_pages")
self.assertEqual(
ram_pages.text, "524158 pages", "Unexpected number of RAM pages"
)
explanation = self.driver.find_element(By.ID, 'explanation')
self.assertTrue('OOM killer was manually triggered' in explanation.text,
'Missing text "OOM killer was manually triggered"')
explanation = self.driver.find_element(By.ID, "explanation")
self.assertTrue(
"OOM killer was manually triggered" in explanation.text,
'Missing text "OOM killer was manually triggered"',
)
self.assertFalse('with an OOM score of' in explanation.text,
'No OOM score but text "with an OOM score of"')
self.assertFalse(
"with an OOM score of" in explanation.text,
'No OOM score but text "with an OOM score of"',
)
explanation = self.driver.find_element(By.ID, 'explanation')
self.assertTrue("system has 2096632 kBytes physical memory and no swap space" in explanation.text,
"Physical and swap memory in summary not found")
self.assertTrue("9% (209520 kBytes out of 2096632 kBytes) physical memory" in explanation.text,
"Used physical memory in summary not found")
explanation = self.driver.find_element(By.ID, "explanation")
self.assertTrue(
"system has 2096632 kBytes physical memory and no swap space"
in explanation.text,
"Physical and swap memory in summary not found",
)
self.assertTrue(
"9% (209520 kBytes out of 2096632 kBytes) physical memory"
in explanation.text,
"Used physical memory in summary not found",
)
head = self.driver.find_element(By.ID, 'pstable_header')
self.assertTrue('Page Table Bytes' in head.text, 'Missing column head line "Page Table Bytes"')
head = self.driver.find_element(By.ID, "pstable_header")
self.assertTrue(
"Page Table Bytes" in head.text,
'Missing column head line "Page Table Bytes"',
)
self.check_swap_inactive()
def check_swap_inactive(self):
explanation = self.driver.find_element(By.ID, 'explanation')
self.assertTrue('physical memory and no swap space' in explanation.text,
'Missing text "physical memory and no swap space"')
self.assertFalse('swap space are in use' in explanation.text,
'No swap space but text "swap space are in use"')
explanation = self.driver.find_element(By.ID, "explanation")
self.assertTrue(
"physical memory and no swap space" in explanation.text,
'Missing text "physical memory and no swap space"',
)
self.assertFalse(
"swap space are in use" in explanation.text,
'No swap space but text "swap space are in use"',
)
def check_swap_active(self):
explanation = self.driver.find_element(By.ID, 'explanation')
self.assertTrue('swap space are in use' in explanation.text,
'Swap space active but no text "swap space are in use"')
explanation = self.driver.find_element(By.ID, "explanation")
self.assertTrue(
"swap space are in use" in explanation.text,
'Swap space active but no text "swap space are in use"',
)
def test_010_load_page(self):
"""Test if the page is loading"""
@ -261,45 +323,69 @@ class TestInBrowser(TestBase):
def test_030_insert_and_analyse_rhel7_example(self):
"""Test loading and analysing RHEL7 example"""
textarea = self.driver.find_element(By.ID, 'textarea_oom')
self.assertEqual(textarea.get_attribute('value'), '', 'Empty textarea expected')
insert_example = self.driver.find_element(By.XPATH, '//button[contains(text(), "RHEL7" )]')
textarea = self.driver.find_element(By.ID, "textarea_oom")
self.assertEqual(textarea.get_attribute("value"), "", "Empty textarea expected")
insert_example = self.driver.find_element(
By.XPATH, '//button[contains(text(), "RHEL7" )]'
)
insert_example.click()
self.assertNotEqual(textarea.get_attribute('value'), '', 'Missing OOM text in textarea')
self.assertNotEqual(
textarea.get_attribute("value"), "", "Missing OOM text in textarea"
)
h3_summary = self.driver.find_element(By.XPATH, '//h3[text()="Summary"]')
self.assertFalse(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be not displayed")
self.assertFalse(
h3_summary.is_displayed(),
"Analysis details incl. <h3>Summary</h3> should be not displayed",
)
self.click_analyse()
self.check_results_rhel7()
def test_031_insert_and_analyse_ubuntu_example(self):
"""Test loading and analysing Ubuntu 21.10 example"""
textarea = self.driver.find_element(By.ID, 'textarea_oom')
self.assertEqual(textarea.get_attribute('value'), '', 'Empty textarea expected')
insert_example = self.driver.find_element(By.XPATH, '//button[contains(text(), "Ubuntu" )]')
textarea = self.driver.find_element(By.ID, "textarea_oom")
self.assertEqual(textarea.get_attribute("value"), "", "Empty textarea expected")
insert_example = self.driver.find_element(
By.XPATH, '//button[contains(text(), "Ubuntu" )]'
)
insert_example.click()
self.assertNotEqual(textarea.get_attribute('value'), '', 'Missing OOM text in textarea')
self.assertNotEqual(
textarea.get_attribute("value"), "", "Missing OOM text in textarea"
)
h3_summary = self.driver.find_element(By.XPATH, '//h3[text()="Summary"]')
self.assertFalse(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be not displayed")
self.assertFalse(
h3_summary.is_displayed(),
"Analysis details incl. <h3>Summary</h3> should be not displayed",
)
self.click_analyse()
self.check_results_ubuntu2110()
def test_032_empty_textarea(self):
"""Test "Analyse" with empty textarea"""
textarea = self.driver.find_element(By.ID, 'textarea_oom')
self.assertEqual(textarea.get_attribute('value'), '', 'Empty textarea expected')
textarea = self.driver.find_element(By.ID, "textarea_oom")
self.assertEqual(textarea.get_attribute("value"), "", "Empty textarea expected")
# textarea.send_keys(text)
self.assertEqual(textarea.get_attribute('value'), '', 'Expected empty text area, but text found')
self.assertEqual(
textarea.get_attribute("value"),
"",
"Expected empty text area, but text found",
)
h3_summary = self.driver.find_element(By.XPATH, '//h3[text()="Summary"]')
self.assertFalse(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be not displayed")
self.assertFalse(
h3_summary.is_displayed(),
"Analysis details incl. <h3>Summary</h3> should be not displayed",
)
self.click_analyse()
self.assertEqual(self.get_error_text(), "ERROR: Empty OOM text. Please insert an OOM message block.")
self.assertEqual(
self.get_error_text(),
"ERROR: Empty OOM text. Please insert an OOM message block.",
)
self.click_reset()
def test_033_begin_but_no_end(self):
@ -310,8 +396,11 @@ sed cpuset=/ mems_allowed=0-1
CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-514.6.1.el7.x86_64 #1
"""
self.analyse_oom(example)
self.assertEqual(self.get_error_text(), "ERROR: The inserted OOM is incomplete! The initial pattern was "
"found but not the final.")
self.assertEqual(
self.get_error_text(),
"ERROR: The inserted OOM is incomplete! The initial pattern was "
"found but not the final.",
)
self.click_reset()
def test_034_no_begin_but_end(self):
@ -321,26 +410,29 @@ Out of memory: Kill process 6576 (java) score 651 or sacrifice child
Killed process 6576 (java) total-vm:33914892kB, anon-rss:20629004kB, file-rss:0kB, shmem-rss:0kB
"""
self.analyse_oom(example)
self.assertEqual(self.get_error_text(), "ERROR: Failed to extract kernel version from OOM text")
self.assertEqual(
self.get_error_text(),
"ERROR: Failed to extract kernel version from OOM text",
)
self.click_reset()
def test_035_leading_journalctl_input(self):
"""Test loading input from journalctl"""
# prepare example
example_lines = OOMAnalyser.OOMDisplay.example_rhel7.split('\n')
example_lines = OOMAnalyser.OOMDisplay.example_rhel7.split("\n")
res = []
# unescape #012 - see OOMAnalyser.OOMEntity._rsyslog_unescape_lf()
for line in example_lines:
if '#012' in line:
res.extend(line.split('#012'))
if "#012" in line:
res.extend(line.split("#012"))
else:
res.append(line)
example_lines = res
res = []
# add date/time prefix except for "Mem-Info:" block
pattern = r'^ (active_file|unevictable|slab_reclaimable|mapped|free):.+$'
pattern = r"^ (active_file|unevictable|slab_reclaimable|mapped|free):.+$"
rec = re.compile(pattern)
for line in example_lines:
match = rec.search(line)
@ -358,29 +450,36 @@ Killed process 6576 (java) total-vm:33914892kB, anon-rss:20629004kB, file-rss:0k
def test_040_trigger_proc_space(self):
"""Test trigger process name contains a space"""
example = OOMAnalyser.OOMDisplay.example_rhel7
example = example.replace('sed', 'VM Monitoring Task')
example = example.replace("sed", "VM Monitoring Task")
self.analyse_oom(example)
self.assert_on_warn_error()
h3_summary = self.driver.find_element(By.XPATH, '//h3[text()="Summary"]')
self.assertTrue(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be displayed")
self.assertTrue(
h3_summary.is_displayed(),
"Analysis details incl. <h3>Summary</h3> should be displayed",
)
def test_050_kill_proc_space(self):
"""Test killed process name contains a space"""
example = OOMAnalyser.OOMDisplay.example_rhel7
example = example.replace('mysqld', 'VM Monitoring Task')
example = example.replace("mysqld", "VM Monitoring Task")
self.analyse_oom(example)
self.assert_on_warn_error()
h3_summary = self.driver.find_element(By.XPATH, '//h3[text()="Summary"]')
self.assertTrue(h3_summary.is_displayed(), "Analysis details incl. <h3>Summary</h3> should be displayed")
self.assertTrue(
h3_summary.is_displayed(),
"Analysis details incl. <h3>Summary</h3> should be displayed",
)
def test_060_removal_of_leading_but_useless_columns(self):
"""Test removal of leading but useless columns"""
self.analyse_oom(OOMAnalyser.OOMDisplay.example_rhel7)
self.check_results_rhel7()
self.click_reset()
for prefix in ["[11686.888109] ",
for prefix in [
"[11686.888109] ",
"Apr 01 14:13:32 mysrv: ",
"Apr 01 14:13:32 mysrv kernel: ",
"Apr 01 14:13:32 mysrv <kern.warning> kernel: ",
@ -388,7 +487,7 @@ Killed process 6576 (java) total-vm:33914892kB, anon-rss:20629004kB, file-rss:0k
"kernel:",
"Apr 01 14:13:32 mysrv <kern.warning> kernel:",
]:
lines = OOMAnalyser.OOMDisplay.example_rhel7.split('\n')
lines = OOMAnalyser.OOMDisplay.example_rhel7.split("\n")
lines = ["{}{}".format(prefix, line) for line in lines]
oom_text = "\n".join(lines)
self.analyse_oom(oom_text)
@ -399,18 +498,20 @@ Killed process 6576 (java) total-vm:33914892kB, anon-rss:20629004kB, file-rss:0k
def test_070_manually_triggered_OOM(self):
"""Test for manually triggered OOM"""
example = OOMAnalyser.OOMDisplay.example_rhel7
example = example.replace('order=0', 'order=-1')
example = example.replace("order=0", "order=-1")
self.analyse_oom(example)
self.assert_on_warn_error()
explanation = self.driver.find_element(By.ID, 'explanation')
self.assertTrue('OOM killer was manually triggered' in explanation.text,
'Missing text "OOM killer was manually triggered"')
explanation = self.driver.find_element(By.ID, "explanation")
self.assertTrue(
"OOM killer was manually triggered" in explanation.text,
'Missing text "OOM killer was manually triggered"',
)
def test_080_swap_deactivated(self):
"""Test w/o swap or with deactivated swap"""
example = OOMAnalyser.OOMDisplay.example_rhel7
example = example.replace('Total swap = 8388604kB', 'Total swap = 0kB')
example = example.replace("Total swap = 8388604kB", "Total swap = 0kB")
self.analyse_oom(example)
self.assert_on_warn_error()
@ -418,10 +519,10 @@ Killed process 6576 (java) total-vm:33914892kB, anon-rss:20629004kB, file-rss:0k
self.click_reset()
example = OOMAnalyser.OOMDisplay.example_rhel7
example = re.sub(r'\d+ pages in swap cac.*\n*', '', example, re.MULTILINE)
example = re.sub(r'Swap cache stats.*\n*', '', example)
example = re.sub(r'Free swap.*\n*', '', example)
example = re.sub(r'Total swap.*\n*', '', example)
example = re.sub(r"\d+ pages in swap cac.*\n*", "", example, re.MULTILINE)
example = re.sub(r"Swap cache stats.*\n*", "", example)
example = re.sub(r"Free swap.*\n*", "", example)
example = re.sub(r"Total swap.*\n*", "", example)
self.analyse_oom(example)
self.assert_on_warn_error()
@ -429,54 +530,82 @@ Killed process 6576 (java) total-vm:33914892kB, anon-rss:20629004kB, file-rss:0k
class TestPython(TestBase):
def test_001_trigger_proc_space(self):
"""Test RE to find name of trigger process"""
first = self.get_first_line(OOMAnalyser.OOMDisplay.example_rhel7)
pattern = OOMAnalyser.OOMAnalyser.oom_result.kconfig.EXTRACT_PATTERN['invoked oom-killer'][0]
pattern = OOMAnalyser.OOMAnalyser.oom_result.kconfig.EXTRACT_PATTERN[
"invoked oom-killer"
][0]
rec = re.compile(pattern, re.MULTILINE)
match = rec.search(first)
self.assertTrue(match, "Error: re.search('invoked oom-killer') failed for simple process name")
self.assertTrue(
match,
"Error: re.search('invoked oom-killer') failed for simple process name",
)
first = first.replace('sed', 'VM Monitoring Task')
first = first.replace("sed", "VM Monitoring Task")
match = rec.search(first)
self.assertTrue(match, "Error: re.search('invoked oom-killer') failed for process name with space")
self.assertTrue(
match,
"Error: re.search('invoked oom-killer') failed for process name with space",
)
def test_002_killed_proc_space(self):
"""Test RE to find name of killed process"""
text = self.get_lines(OOMAnalyser.OOMDisplay.example_rhel7, -2)
pattern = OOMAnalyser.OOMAnalyser.oom_result.kconfig.EXTRACT_PATTERN['Process killed by OOM'][0]
pattern = OOMAnalyser.OOMAnalyser.oom_result.kconfig.EXTRACT_PATTERN[
"Process killed by OOM"
][0]
rec = re.compile(pattern, re.MULTILINE)
match = rec.search(text)
self.assertTrue(match, "Error: re.search('Process killed by OOM') failed for simple process name")
self.assertTrue(
match,
"Error: re.search('Process killed by OOM') failed for simple process name",
)
text = text.replace('sed', 'VM Monitoring Task')
text = text.replace("sed", "VM Monitoring Task")
match = rec.search(text)
self.assertTrue(match, "Error: re.search('Process killed by OOM') failed for process name with space")
self.assertTrue(
match,
"Error: re.search('Process killed by OOM') failed for process name with space",
)
def test_003_OOMEntity_number_of_columns_to_strip(self):
"""Test stripping useless / leading columns"""
oom_entity = OOMAnalyser.OOMEntity(OOMAnalyser.OOMDisplay.example_rhel7)
for pos, line in [
(1, '[11686.888109] CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-514.6.1.el7.x86_64 #1'),
(5, 'Apr 01 14:13:32 mysrv kernel: CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-514.6.1.el7.x86_64 #1'),
(6, 'Apr 01 14:13:32 mysrv kernel: [11686.888109] CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-514.6.1.el7.x86_64 #1'),
(
1,
"[11686.888109] CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-514.6.1.el7.x86_64 #1",
),
(
5,
"Apr 01 14:13:32 mysrv kernel: CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-514.6.1.el7.x86_64 #1",
),
(
6,
"Apr 01 14:13:32 mysrv kernel: [11686.888109] CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-514.6.1.el7.x86_64 #1",
),
]:
to_strip = oom_entity._number_of_columns_to_strip(line)
self.assertEqual(to_strip, pos, 'Calc wrong number of columns to strip for "%s": got: %d, expect: %d' % (
line, to_strip, pos))
self.assertEqual(
to_strip,
pos,
'Calc wrong number of columns to strip for "%s": got: %d, expect: %d'
% (line, to_strip, pos),
)
def test_004_extract_block_from_next_pos(self):
"""Test extracting a single block (all lines till the next line with a colon)"""
oom = OOMAnalyser.OOMEntity(OOMAnalyser.OOMDisplay.example_rhel7)
analyser = OOMAnalyser.OOMAnalyser(oom)
text = analyser._extract_block_from_next_pos('Hardware name:')
expected = '''\
text = analyser._extract_block_from_next_pos("Hardware name:")
expected = """\
Hardware name: HP ProLiant DL385 G7, BIOS A18 12/08/2012
ffff880182272f10 00000000021dcb0a ffff880418207938 ffffffff816861ac
ffff8804182079c8 ffffffff81681157 ffffffff810eab9c ffff8804182fe910
ffff8804182fe928 0000000000000202 ffff880182272f10 ffff8804182079b8
'''
"""
self.assertEqual(text, expected)
def test_005_extract_kernel_version(self):
@ -484,25 +613,57 @@ Hardware name: HP ProLiant DL385 G7, BIOS A18 12/08/2012
oom = OOMAnalyser.OOMEntity(OOMAnalyser.OOMDisplay.example_rhel7)
analyser = OOMAnalyser.OOMAnalyser(oom)
for text, kversion in [
('CPU: 0 PID: 19163 Comm: kworker/0:0 Tainted: G OE 5.4.0-80-lowlatency #90~18.04.1-Ubuntu', '5.4.0-80-lowlatency'),
('CPU: 4 PID: 1 Comm: systemd Not tainted 3.10.0-1062.9.1.el7.x86_64 #1', '3.10.0-1062.9.1.el7.x86_64'),
(
"CPU: 0 PID: 19163 Comm: kworker/0:0 Tainted: G OE 5.4.0-80-lowlatency #90~18.04.1-Ubuntu",
"5.4.0-80-lowlatency",
),
(
"CPU: 4 PID: 1 Comm: systemd Not tainted 3.10.0-1062.9.1.el7.x86_64 #1",
"3.10.0-1062.9.1.el7.x86_64",
),
]:
analyser.oom_entity.text = text
success = analyser._identify_kernel_version()
self.assertTrue(analyser._identify_kernel_version(), analyser.oom_result.error_msg)
self.assertTrue(
analyser._identify_kernel_version(), analyser.oom_result.error_msg
)
self.assertEqual(analyser.oom_result.kversion, kversion)
def test_006_choosing_kernel_config(self):
"""Test choosing the right kernel configuration"""
for kcfg, kversion in [
(OOMAnalyser.KernelConfig_5_8(), 'CPU: 4 PID: 29481 Comm: sed Not tainted 5.13.0-514 #1'),
(OOMAnalyser.KernelConfig_5_8(), 'CPU: 4 PID: 29481 Comm: sed Not tainted 5.8.0-514 #1'),
(OOMAnalyser.KernelConfig_4_6(), 'CPU: 4 PID: 29481 Comm: sed Not tainted 4.6.0-514 #1'),
(OOMAnalyser.KernelConfigRhel7(), 'CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-1062.9.1.el7.x86_64 #1'),
(OOMAnalyser.KernelConfig_5_0(), 'CPU: 4 PID: 29481 Comm: sed Not tainted 5.5.1 #1'),
(OOMAnalyser.KernelConfig_5_8(), 'CPU: 4 PID: 29481 Comm: sed Not tainted 5.23.0 #1'),
(OOMAnalyser.KernelConfig_5_8(), 'CPU: 4 PID: 29481 Comm: sed Not tainted 6.12.0 #1'),
(OOMAnalyser.BaseKernelConfig(), 'CPU: 4 PID: 29481 Comm: sed Not tainted 2.33.0 #1'),
(
OOMAnalyser.KernelConfig_5_8(),
"CPU: 4 PID: 29481 Comm: sed Not tainted 5.13.0-514 #1",
),
(
OOMAnalyser.KernelConfig_5_8(),
"CPU: 4 PID: 29481 Comm: sed Not tainted 5.8.0-514 #1",
),
(
OOMAnalyser.KernelConfig_4_6(),
"CPU: 4 PID: 29481 Comm: sed Not tainted 4.6.0-514 #1",
),
(
OOMAnalyser.KernelConfigRhel7(),
"CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-1062.9.1.el7.x86_64 #1",
),
(
OOMAnalyser.KernelConfig_5_0(),
"CPU: 4 PID: 29481 Comm: sed Not tainted 5.5.1 #1",
),
(
OOMAnalyser.KernelConfig_5_8(),
"CPU: 4 PID: 29481 Comm: sed Not tainted 5.23.0 #1",
),
(
OOMAnalyser.KernelConfig_5_8(),
"CPU: 4 PID: 29481 Comm: sed Not tainted 6.12.0 #1",
),
(
OOMAnalyser.BaseKernelConfig(),
"CPU: 4 PID: 29481 Comm: sed Not tainted 2.33.0 #1",
),
]:
oom = OOMAnalyser.OOMEntity(kversion)
analyser = OOMAnalyser.OOMAnalyser(oom)
@ -510,10 +671,10 @@ Hardware name: HP ProLiant DL385 G7, BIOS A18 12/08/2012
analyser._choose_kernel_config()
result = analyser.oom_result.kconfig
self.assertEqual(
type(result), type(kcfg),
'Mismatch between expected kernel config "%s" and chosen config "%s" for kernel version "%s"' % (
type(kcfg), type(result), kversion
)
type(result),
type(kcfg),
'Mismatch between expected kernel config "%s" and chosen config "%s" for kernel version "%s"'
% (type(kcfg), type(result), kversion),
)