Files
clang-p2996/llvm/utils/lit/tests/unit/TestRunner.py
Yuanfang Chen cd0a5889d7 [Reland][lit] Use sharding for GoogleTest format
This helps lit unit test performance by a lot, especially on windows. The performance gain comes from launching one gtest executable for many subtests instead of one (this is the current situation).

The shards are executed by the test runner and the results are stored in the
json format supported by the GoogleTest. Later in the test reporting stage,
all test results in the json file are retrieved to continue the test results
summary etc.

On my Win10 desktop, before this patch: `check-clang-unit`: 177s, `check-llvm-unit`: 38s; after this patch: `check-clang-unit`: 37s, `check-llvm-unit`: 11s.
On my Linux machine, before this patch: `check-clang-unit`: 46s, `check-llvm-unit`: 8s; after this patch: `check-clang-unit`: 7s, `check-llvm-unit`: 4s.

Reviewed By: yln, rnk, abrachet

Differential Revision: https://reviews.llvm.org/D122251
2022-04-12 14:51:12 -07:00

296 lines
12 KiB
Python

# RUN: %{python} %s
#
# END.
import os.path
import platform
import unittest
import lit.discovery
import lit.LitConfig
import lit.Test as Test
from lit.TestRunner import ParserKind, IntegratedTestKeywordParser, \
parseIntegratedTestScript
class TestIntegratedTestKeywordParser(unittest.TestCase):
inputTestCase = None
@staticmethod
def load_keyword_parser_lit_tests():
"""
Create and load the LIT test suite and test objects used by
TestIntegratedTestKeywordParser
"""
# Create the global config object.
lit_config = lit.LitConfig.LitConfig(progname='lit',
path=[],
quiet=False,
useValgrind=False,
valgrindLeakCheck=False,
valgrindArgs=[],
noExecute=False,
debug=False,
isWindows=(
platform.system() == 'Windows'),
order='smart',
params={})
TestIntegratedTestKeywordParser.litConfig = lit_config
# Perform test discovery.
test_path = os.path.dirname(os.path.dirname(__file__))
inputs = [os.path.join(test_path, 'Inputs/testrunner-custom-parsers/')]
assert os.path.isdir(inputs[0])
tests = lit.discovery.find_tests_for_inputs(lit_config, inputs, False)
assert len(tests) == 1 and "there should only be one test"
TestIntegratedTestKeywordParser.inputTestCase = tests[0]
@staticmethod
def make_parsers():
def custom_parse(line_number, line, output):
if output is None:
output = []
output += [part for part in line.split(' ') if part.strip()]
return output
return [
IntegratedTestKeywordParser("MY_TAG.", ParserKind.TAG),
IntegratedTestKeywordParser("MY_DNE_TAG.", ParserKind.TAG),
IntegratedTestKeywordParser("MY_LIST:", ParserKind.LIST),
IntegratedTestKeywordParser("MY_BOOL:", ParserKind.BOOLEAN_EXPR),
IntegratedTestKeywordParser("MY_INT:", ParserKind.INTEGER),
IntegratedTestKeywordParser("MY_RUN:", ParserKind.COMMAND),
IntegratedTestKeywordParser("MY_CUSTOM:", ParserKind.CUSTOM,
custom_parse),
]
@staticmethod
def get_parser(parser_list, keyword):
for p in parser_list:
if p.keyword == keyword:
return p
assert False and "parser not found"
@staticmethod
def parse_test(parser_list, allow_result=False):
script = parseIntegratedTestScript(
TestIntegratedTestKeywordParser.inputTestCase,
additional_parsers=parser_list, require_script=False)
if isinstance(script, lit.Test.Result):
assert allow_result
else:
assert isinstance(script, list)
assert len(script) == 0
return script
def test_tags(self):
parsers = self.make_parsers()
self.parse_test(parsers)
tag_parser = self.get_parser(parsers, 'MY_TAG.')
dne_tag_parser = self.get_parser(parsers, 'MY_DNE_TAG.')
self.assertTrue(tag_parser.getValue())
self.assertFalse(dne_tag_parser.getValue())
def test_lists(self):
parsers = self.make_parsers()
self.parse_test(parsers)
list_parser = self.get_parser(parsers, 'MY_LIST:')
self.assertEqual(list_parser.getValue(),
['one', 'two', 'three', 'four'])
def test_commands(self):
parsers = self.make_parsers()
self.parse_test(parsers)
cmd_parser = self.get_parser(parsers, 'MY_RUN:')
value = cmd_parser.getValue()
self.assertEqual(len(value), 2) # there are only two run lines
self.assertEqual(value[0].strip(), "%dbg(MY_RUN: at line 4) baz")
self.assertEqual(value[1].strip(), "%dbg(MY_RUN: at line 7) foo bar")
def test_boolean(self):
parsers = self.make_parsers()
self.parse_test(parsers)
bool_parser = self.get_parser(parsers, 'MY_BOOL:')
value = bool_parser.getValue()
self.assertEqual(len(value), 2) # there are only two run lines
self.assertEqual(value[0].strip(), "a && (b)")
self.assertEqual(value[1].strip(), "d")
def test_integer(self):
parsers = self.make_parsers()
self.parse_test(parsers)
int_parser = self.get_parser(parsers, 'MY_INT:')
value = int_parser.getValue()
self.assertEqual(len(value), 2) # there are only two MY_INT: lines
self.assertEqual(type(value[0]), int)
self.assertEqual(value[0], 4)
self.assertEqual(type(value[1]), int)
self.assertEqual(value[1], 6)
def test_bad_parser_type(self):
parsers = self.make_parsers() + ["BAD_PARSER_TYPE"]
script = self.parse_test(parsers, allow_result=True)
self.assertTrue(isinstance(script, lit.Test.Result))
self.assertEqual(script.code, lit.Test.UNRESOLVED)
self.assertEqual('Additional parser must be an instance of '
'IntegratedTestKeywordParser',
script.output)
def test_duplicate_keyword(self):
parsers = self.make_parsers() + \
[IntegratedTestKeywordParser("KEY:", ParserKind.BOOLEAN_EXPR),
IntegratedTestKeywordParser("KEY:", ParserKind.BOOLEAN_EXPR)]
script = self.parse_test(parsers, allow_result=True)
self.assertTrue(isinstance(script, lit.Test.Result))
self.assertEqual(script.code, lit.Test.UNRESOLVED)
self.assertEqual("Parser for keyword 'KEY:' already exists",
script.output)
def test_boolean_unterminated(self):
parsers = self.make_parsers() + \
[IntegratedTestKeywordParser("MY_BOOL_UNTERMINATED:", ParserKind.BOOLEAN_EXPR)]
script = self.parse_test(parsers, allow_result=True)
self.assertTrue(isinstance(script, lit.Test.Result))
self.assertEqual(script.code, lit.Test.UNRESOLVED)
self.assertEqual("Test has unterminated 'MY_BOOL_UNTERMINATED:' lines "
"(with '\\')",
script.output)
def test_custom(self):
parsers = self.make_parsers()
self.parse_test(parsers)
custom_parser = self.get_parser(parsers, 'MY_CUSTOM:')
value = custom_parser.getValue()
self.assertEqual(value, ['a', 'b', 'c'])
def test_bad_keywords(self):
def custom_parse(line_number, line, output):
return output
try:
IntegratedTestKeywordParser("TAG_NO_SUFFIX", ParserKind.TAG),
self.fail("TAG_NO_SUFFIX failed to raise an exception")
except ValueError as e:
pass
except BaseException as e:
self.fail("TAG_NO_SUFFIX raised the wrong exception: %r" % e)
try:
IntegratedTestKeywordParser("TAG_WITH_COLON:", ParserKind.TAG),
self.fail("TAG_WITH_COLON: failed to raise an exception")
except ValueError as e:
pass
except BaseException as e:
self.fail("TAG_WITH_COLON: raised the wrong exception: %r" % e)
try:
IntegratedTestKeywordParser("LIST_WITH_DOT.", ParserKind.LIST),
self.fail("LIST_WITH_DOT. failed to raise an exception")
except ValueError as e:
pass
except BaseException as e:
self.fail("LIST_WITH_DOT. raised the wrong exception: %r" % e)
try:
IntegratedTestKeywordParser("CUSTOM_NO_SUFFIX",
ParserKind.CUSTOM, custom_parse),
self.fail("CUSTOM_NO_SUFFIX failed to raise an exception")
except ValueError as e:
pass
except BaseException as e:
self.fail("CUSTOM_NO_SUFFIX raised the wrong exception: %r" % e)
# Both '.' and ':' are allowed for CUSTOM keywords.
try:
IntegratedTestKeywordParser("CUSTOM_WITH_DOT.",
ParserKind.CUSTOM, custom_parse),
except BaseException as e:
self.fail("CUSTOM_WITH_DOT. raised an exception: %r" % e)
try:
IntegratedTestKeywordParser("CUSTOM_WITH_COLON:",
ParserKind.CUSTOM, custom_parse),
except BaseException as e:
self.fail("CUSTOM_WITH_COLON: raised an exception: %r" % e)
try:
IntegratedTestKeywordParser("CUSTOM_NO_PARSER:",
ParserKind.CUSTOM),
self.fail("CUSTOM_NO_PARSER: failed to raise an exception")
except ValueError as e:
pass
except BaseException as e:
self.fail("CUSTOM_NO_PARSER: raised the wrong exception: %r" % e)
class TestApplySubtitutions(unittest.TestCase):
def test_simple(self):
script = ["echo %bar"]
substitutions = [("%bar", "hello")]
result = lit.TestRunner.applySubstitutions(script, substitutions)
self.assertEqual(result, ["echo hello"])
def test_multiple_substitutions(self):
script = ["echo %bar %baz"]
substitutions = [("%bar", "hello"),
("%baz", "world"),
("%useless", "shouldnt expand")]
result = lit.TestRunner.applySubstitutions(script, substitutions)
self.assertEqual(result, ["echo hello world"])
def test_multiple_script_lines(self):
script = ["%cxx %compile_flags -c -o %t.o",
"%cxx %link_flags %t.o -o %t.exe"]
substitutions = [("%cxx", "clang++"),
("%compile_flags", "-std=c++11 -O3"),
("%link_flags", "-lc++")]
result = lit.TestRunner.applySubstitutions(script, substitutions)
self.assertEqual(result, ["clang++ -std=c++11 -O3 -c -o %t.o",
"clang++ -lc++ %t.o -o %t.exe"])
def test_recursive_substitution_real(self):
script = ["%build %s"]
substitutions = [("%cxx", "clang++"),
("%compile_flags", "-std=c++11 -O3"),
("%link_flags", "-lc++"),
("%build", "%cxx %compile_flags %link_flags %s -o %t.exe")]
result = lit.TestRunner.applySubstitutions(script, substitutions, recursion_limit=3)
self.assertEqual(result, ["clang++ -std=c++11 -O3 -lc++ %s -o %t.exe %s"])
def test_recursive_substitution_limit(self):
script = ["%rec5"]
# Make sure the substitutions are not in an order where the global
# substitution would appear to be recursive just because they are
# processed in the right order.
substitutions = [("%rec1", "STOP"), ("%rec2", "%rec1"),
("%rec3", "%rec2"), ("%rec4", "%rec3"), ("%rec5", "%rec4")]
for limit in [5, 6, 7]:
result = lit.TestRunner.applySubstitutions(script, substitutions, recursion_limit=limit)
self.assertEqual(result, ["STOP"])
def test_recursive_substitution_limit_exceeded(self):
script = ["%rec5"]
substitutions = [("%rec1", "STOP"), ("%rec2", "%rec1"),
("%rec3", "%rec2"), ("%rec4", "%rec3"), ("%rec5", "%rec4")]
for limit in [0, 1, 2, 3, 4]:
try:
lit.TestRunner.applySubstitutions(script, substitutions, recursion_limit=limit)
self.fail("applySubstitutions should have raised an exception")
except ValueError:
pass
def test_recursive_substitution_invalid_value(self):
script = ["%rec5"]
substitutions = [("%rec1", "STOP"), ("%rec2", "%rec1"),
("%rec3", "%rec2"), ("%rec4", "%rec3"), ("%rec5", "%rec4")]
for limit in [-1, -2, -3, "foo"]:
try:
lit.TestRunner.applySubstitutions(script, substitutions, recursion_limit=limit)
self.fail("applySubstitutions should have raised an exception")
except AssertionError:
pass
if __name__ == '__main__':
TestIntegratedTestKeywordParser.load_keyword_parser_lit_tests()
unittest.main(verbosity=2)