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#!/usr/bin/python3
from collections import namedtuple
import os
import platform
from runner import Runner
DEFAULT_TIMEOUT = 5
class RequiredFieldError(Exception):
pass
class UnknownFieldError(Exception):
pass
class InvalidFieldError(Exception):
pass
class Expect:
def __init__(self, expect, mode):
self.expect = expect
self.mode = mode
# Remember to update tests/README.md if adding a new directive!
TestStruct = namedtuple(
'TestStruct',
[
'name',
'run',
'prog',
'expects',
'has_exact_expect',
'timeout',
'befores',
'after',
'setup',
'cleanup',
'suite',
'kernel_min',
'kernel_max',
'requirement',
'env',
'arch',
'feature_requirement',
'neg_feature_requirement',
'will_fail',
'new_pidns',
'skip_if_env_has',
'return_code',
],
)
class TestParser(object):
@staticmethod
def read_all(run_aot_tests):
aot_tests = []
for root, subdirs, files in os.walk('./runtime'):
for ignore_dir in ["engine", "scripts", "outputs"]:
if ignore_dir in subdirs:
subdirs.remove(ignore_dir)
for filename in files:
if filename.startswith("."):
continue
parser = TestParser.read(root + '/' + filename)
if parser[1]:
if run_aot_tests:
for test in parser[1]:
# Only reuse tests that use PROG directive
if not test.prog:
continue
# _replace() creates a new instance w/ specified fields replaced
test = test._replace(
name='{}.{}'.format(test.suite, test.name),
suite='aot')
aot_tests.append(test)
yield parser
if run_aot_tests:
yield ('aot', aot_tests)
@staticmethod
def read(file_name):
tests = []
test_lines = []
test_suite = file_name.split('/')[-1]
with open (file_name, 'r') as file:
lines = file.readlines()
line_num = 0
for line in lines:
line_num += 1
if line.startswith("#"):
continue
if line != '\n':
test_lines.append(line)
if line == '\n' or line_num == len(lines):
if test_lines:
test_struct = TestParser.__read_test_struct(test_lines, test_suite)
if not test_struct.arch or (platform.machine().lower() in test_struct.arch):
tests.append(test_struct)
test_lines = []
return (test_suite, tests)
@staticmethod
def __read_test_struct(test, test_suite):
name = ''
run = ''
prog = ''
expects = []
has_exact_expect = False
timeout = ''
befores = []
after = ''
setup = ''
cleanup = ''
kernel_min = ''
kernel_max = ''
requirement = []
env = {}
arch = []
feature_requirement = set()
neg_feature_requirement = set()
will_fail = False
new_pidns = False
skip_if_env_has = None
return_code = None
prev_item_name = ''
for item in test:
if item[:len(prev_item_name) + 1].isspace():
# Whitespace at beginning of line means it continues from the
# previous line
# Remove the leading whitespace and the trailing newline
line = item[len(prev_item_name) + 1:-1]
if prev_item_name == 'PROG':
prog += '\n' + line
continue
elif prev_item_name in ('EXPECT', 'EXPECT_REGEX'):
expects[-1].expect += '\n' + line
continue
item_split = item.strip().split(maxsplit=1)
item_name = item_split[0]
line = item_split[1] if len(item_split) > 1 else ""
prev_item_name = item_name
if item_name == 'NAME':
name = line
elif item_name == 'RUN':
run = line
elif item_name == "PROG":
prog = line
elif item_name == 'EXPECT':
expects.append(Expect(line, 'text'))
elif item_name == 'EXPECT_NONE':
expects.append(Expect(line, 'text_none'))
elif item_name == 'EXPECT_REGEX':
expects.append(Expect(line, 'regex'))
elif item_name == 'EXPECT_REGEX_NONE':
expects.append(Expect(line, 'regex_none'))
elif item_name == 'EXPECT_FILE':
has_exact_expect = True
expects.append(Expect(line, 'file'))
elif item_name == 'EXPECT_JSON':
has_exact_expect = True
expects.append(Expect(line, 'json'))
elif item_name == 'TIMEOUT':
timeout = int(line.strip(' '))
elif item_name == 'BEFORE':
befores.append(line)
elif item_name == 'AFTER':
after = line
elif item_name == 'SETUP':
setup = line
elif item_name == 'CLEANUP':
cleanup = line
elif item_name == 'MIN_KERNEL':
kernel_min = line
elif item_name == 'MAX_KERNEL':
kernel_max = line
elif item_name == 'REQUIRES':
requirement.append(line)
elif item_name == 'ENV':
for e in line.split():
k, v = e.split('=')
env[k]=v
elif item_name == 'ARCH':
arch = [x.strip() for x in line.split("|")]
elif item_name == 'REQUIRES_FEATURE':
features = set(Runner.get_bpffeature().keys())
for f in line.split(" "):
f = f.strip()
if f.startswith("!"):
neg_feature_requirement.add(f[1:])
else:
feature_requirement.add(f)
unknown = (feature_requirement | neg_feature_requirement) - features
if len(unknown) > 0:
raise UnknownFieldError('%s is invalid for REQUIRES_FEATURE. Suite: %s' % (','.join(unknown), test_suite))
elif item_name == "WILL_FAIL":
will_fail = True
elif item_name == "NEW_PIDNS":
new_pidns = True
elif item_name == "SKIP_IF_ENV_HAS":
parts = line.split("=")
skip_if_env_has = (parts[0], parts[1])
elif item_name == "RETURN_CODE":
return_code = int(line.strip(' '))
else:
raise UnknownFieldError('Field %s is not a runtime test directive. Suite: %s' % (item_name, test_suite))
if name == '':
raise RequiredFieldError('Test NAME is required. Suite: ' + test_suite)
elif run == '' and prog == '':
raise RequiredFieldError('Test RUN or PROG is required. Suite: ' + test_suite)
elif run != '' and prog != '':
raise InvalidFieldError('Test RUN and PROG both specified. Suit: ' + test_suite)
elif len(expects) == 0 and return_code is None:
raise RequiredFieldError('At least one test EXPECT (or variation) is required. Suite: ' + test_suite)
elif len(expects) > 1 and has_exact_expect:
raise InvalidFieldError('EXPECT_JSON or EXPECT_FILE can not be used with other EXPECTs. Suite: ' + test_suite)
elif timeout == '':
timeout = DEFAULT_TIMEOUT
if return_code is None:
return_code = 0
if return_code != 0 and will_fail:
raise InvalidFieldError('WILL_FAIL and RETURN_CODE can not be used together. Suite: ' + test_suite)
return TestStruct(
name,
run,
prog,
expects,
has_exact_expect,
timeout,
befores,
after,
setup,
cleanup,
test_suite,
kernel_min,
kernel_max,
requirement,
env,
arch,
feature_requirement,
neg_feature_requirement,
will_fail,
new_pidns,
skip_if_env_has,
return_code,
)
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