def test_verify_proc_diskstats_parsing_kernel_post_4_18(self):
file_path = os.path.join(FIXTURES_DIR, "kernel_post_4.18.txt")
output_file_sucess = io.StringIO()
output_file_error = io.StringIO()
f_diskstats = None
try:
f_diskstats = open(file_path, "r")
parse_and_print_metrics(f_diskstats, output_file_sucess,
output_file_error)
finally:
if f_diskstats:
f_diskstats.close()
output_success = output_file_sucess.getvalue()
output_error = output_file_error.getvalue()
output_success_lines = output_success.strip().split("\n")
self.assertEqual(output_error, "")
self.assertOutputContainsAllFields(output_success)
self.assertEqual(output_success_lines[0],
"iostat.disk.read_requests 104 446216 dev=hda")
self.assertEqual(
output_success_lines[-1],
"iostat.disk.msec_weighted_total 104 23705160 dev=hda",
)
def test_verify_proc_diskstats_parsing_kernel_5_5(self):
file_path = os.path.join(FIXTURES_DIR, "kernel_5.5.7.txt")
output_file_sucess = io.StringIO()
output_file_error = io.StringIO()
f_diskstats = None
try:
f_diskstats = open(file_path, "r")
parse_and_print_metrics(f_diskstats, output_file_sucess,
output_file_error)
finally:
if f_diskstats:
f_diskstats.close()
output_success = output_file_sucess.getvalue()
output_error = output_file_error.getvalue()
output_success_lines = output_success.strip().split("\n")
self.assertEqual(output_error, "")
self.assertOutputContainsAllFields(output_success)
self.assertEqual(output_success_lines[0],
"iostat.disk.read_requests 102 475618 dev=nvme0n1")
self.assertEqual(
output_success_lines[-1],
"iostat.part.msec_weighted_total 102 343377888 dev=dm-3",
)
def test_verify_proc_diskstats_parsing_invalid_content(self):
file_path = os.path.join(FIXTURES_DIR, "invalid.txt")
output_file_sucess = io.StringIO()
output_file_error = io.StringIO()
f_diskstats = None
try:
f_diskstats = open(file_path, "r")
parse_and_print_metrics(f_diskstats, output_file_sucess,
output_file_error)
finally:
if f_diskstats:
f_diskstats.close()
output_success = output_file_sucess.getvalue()
output_error = output_file_error.getvalue().strip()
self.assertEqual(
output_error,
"Cannot parse /proc/diskstats line: 3 0 hda 446216")
self.assertEqual(output_success, "")