def runnable_searcher(abs_path_to_search: str = None,
file_filter: Callable[[str, str], bool] = lambda folder, file: True) \
-> Tuple[str, str]:
if abs_path_to_search is None:
abs_path_to_search = os.getcwd()
curr_folder = os.path.abspath(abs_path_to_search)
for folder, dirs, files in walk_user_files(curr_folder):
files = [f for f in files if f.endswith('.go') and file_filter(folder, f)]
if len(files) == 0:
continue
if len(files) == 1:
return folder, files[0]
contents = {}
for file in files:
path = os.path.abspath(os.path.join(folder, file))
if path in file_contents_cached:
contents[file] = file_contents_cached[path]
elif os.path.exists(path):
with open(path) as f:
file_content = f.read()
contents[file] = file_content
file_contents_cached[path] = contents[file]
has_main = {f: False for f in files}
for file in files:
source = contents[file]
if GoRunnableFile.main_searcher.search(source) is not None:
has_main[file] = True
candidates = [f for f in files if has_main[f]]
if len(candidates) == 1:
return folder, candidates[0]
if len(candidates) > 1:
str_files = ', '.join(f'"{f}"' for f in candidates)
raise ErrorWithFeedback(
f'Cannot decide which file to run out of the following: {str_files}\n'
'They all have "func main()". Leave one file with main function.')
raise ErrorWithFeedback(
'Cannot find a file with main function.\n'
f'Are your project files located at \"{curr_folder}\"?')
def launch_django_application(self, test_case: TestCase):
if not isinstance(test_case.attach, DjangoSettings):
raise UnexpectedError(
f'Django tests should have DjangoSettings class as an attach, '
f'found {type(test_case.attach)}')
source = test_case.source_name
if source is None:
source = 'manage'
full_source = source.replace('.', os.sep) + '.py'
full_path = os.path.abspath(full_source)
if not os.path.exists(full_path):
raise ErrorWithFeedback(
f'Cannot find file named "{os.path.basename(full_path)}" '
f'in folder "{os.path.dirname(full_path)}". '
f'Check if you deleted it.')
self.full_path = full_path
self.port = self.__find_free_port(test_case.attach.tryout_ports)
if test_case.attach.use_database:
self.__prepare_database(test_case.attach.test_database)
self.process = PopenWrapper(sys.executable, self.full_path,
'runserver', self.port, '--noreload')
i: int = 100
search_phrase = 'Starting development server at'
while i:
if search_phrase in self.process.stdout:
break
i -= 1
if self.process.is_error_happened():
i = 0
else:
sleep(0.1)
else:
stdout = self.process.stdout.strip()
stderr = self.process.stderr.strip()
error_info = f'Cannot start Django server because cannot find "{search_phrase}" in process\' output'
if len(stdout):
error_info += '\n\nstdout:\n' + stdout
if len(stderr):
error_info += '\n\nstderr:\n' + stderr
raise ErrorWithFeedback(error_info)
def tear_down():
if current_thread() != SystemHandler.__locker_thread:
raise ErrorWithFeedback(
"Cannot tear down the testing process from the other thread")
with SystemHandler.__lock:
if not SystemHandler.__locked:
raise ErrorWithFeedback(
"Cannot tear down the testing process more than once")
SystemHandler.__locked = False
SystemHandler.__locker_thread = None
OutputHandler.revert_stdout()
InputHandler.revert_input()
ExitHandler.revert_exit()
def execute(self, stdin: str) -> str:
if self.is_finished():
from hstest.stage_test import StageTest
StageTest.curr_test_run.set_error_in_test(
ErrorWithFeedback(
f"The program {self} has unexpectedly terminated.\n" +
"It finished execution too early, should continue running."
))
raise TestedProgramFinishedEarly()
if stdin is None:
self.stop_input()
return ""
if not self.is_waiting_input():
raise UnexpectedError(
f"Program {self} is not waiting for the input " +
f"(state == \"{self._machine.state}\")")
if self.__no_more_input:
raise UnexpectedError(
f"Can't pass input to the program {self} - input was prohibited."
)
self._input = stdin
if self.__in_background:
self._machine.set_state(ProgramState.RUNNING)
return ""
# suspends thread while the program is executing,
# waits for non-RUNNING state to be reached
self._machine.set_and_wait(ProgramState.RUNNING)
return self.__get_execution_output()
def __prepare_database(self, test_database: str):
os.environ['HYPERSKILL_TEST_DATABASE'] = test_database
with open(test_database, 'w'):
pass
migrate = ProcessWrapper(sys.executable,
self.full_path,
'migrate',
check_early_finish=True)
while not migrate.is_finished() and len(migrate.stderr) == 0:
sleep(0.01)
if len(migrate.stderr) != 0:
migrate.wait_output()
stdout = migrate.stdout
stderr = migrate.stderr
error_info = 'Cannot apply migrations to an empty database.'
if len(stdout):
error_info += '\n\nstdout:\n' + stdout.strip()
if len(stderr):
error_info += '\n\nstderr:\n' + stderr.strip()
raise ErrorWithFeedback(error_info)
def __find_free_port(self, ports: List[int]) -> int:
for port in ports:
if not is_port_in_use(port):
return port
raise ErrorWithFeedback(
'Cannot find a port to start Django application '
f'(tried ports form {ports[0]} to {ports[-1]})')
def set_up():
with SystemHandler.__lock:
if SystemHandler.__locked:
raise ErrorWithFeedback(
"Cannot start the testing process more than once")
SystemHandler.__locked = True
SystemHandler.__locker_thread = current_thread()
OutputHandler.replace_stdout()
InputHandler.replace_input()
ExitHandler.replace_exit()
def readline(self) -> str:
line = self.handler.eject_next_line()
if line is None:
if not Settings.allow_out_of_input:
from hstest import StageTest
StageTest.curr_test_run.set_error_in_test(ErrorWithFeedback(
"Program ran out of input. You tried to read more, than expected."))
raise ExitException()
else:
raise EOFError('EOF when reading a line')
return line
def __prepare_database(self, test_database: str):
os.environ['HYPERSKILL_TEST_DATABASE'] = test_database
with open(test_database, 'w'):
pass
migrate = subprocess.Popen([sys.executable, self.full_path, 'migrate'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
exit_code = migrate.wait()
if exit_code != 0:
stdout = migrate.stdout.read().decode().strip()
stderr = migrate.stderr.read().decode().strip()
error_info = 'Cannot apply migrations to an empty database.'
if len(stdout):
error_info += '\n\nstdout:\n' + stdout.strip()
if len(stderr):
error_info += '\n\nstderr:\n' + stderr.strip()
raise ErrorWithFeedback(error_info)
def check(self, reply: str, attach: Any):
raise ErrorWithFeedback(
f"The program has unexpectedly terminated.\n" +
"It finished execution too early, should continue running.")
def runnable_searcher(
abs_path_to_search: str,
file_filter: Callable[[str, str], bool] = lambda x, y: True
) -> Tuple[str, str]:
curr_folder = os.path.abspath(abs_path_to_search)
test_folder = os.path.join(curr_folder, 'test')
for folder, dirs, files in os.walk(curr_folder):
if folder.startswith(test_folder):
continue
if folder == curr_folder:
for file in 'test.py', 'tests.py':
if file in files:
files.remove(file)
files = [
f for f in files if f.endswith('.py') and file_filter(folder, f)
]
if len(files) == 0:
continue
if len(files) == 1:
return folder, files[0]
contents = {}
for file in files:
path = os.path.abspath(os.path.join(folder, file))
if path in _contents_cached:
contents[file] = _contents_cached[path]
elif os.path.exists(path):
with open(path) as f:
file_content = f.read()
contents[file] = [
file_content,
re.compile(
rf'(^|\n)import +[\w., ]*\b{file[:-3]}\b[\w., ]*',
re.M),
re.compile(
rf'(^|\n)from +\.? *\b{file[:-3]}\b +import +',
re.M)
]
_contents_cached[path] = contents[file]
is_imported = {f: False for f in files}
has_name_main = {f: False for f in files}
for file in files:
source = contents[file][0]
if '__name__' in source and '__main__' in source:
has_name_main[file] = True
for f, (s, r1, r2) in contents.items():
if r1.search(source) is not None or r2.search(
source) is not None:
is_imported[f] = True
candidates_by_import = [f for f in files if not is_imported[f]]
if len(candidates_by_import) == 1:
return folder, candidates_by_import[0]
candidates_by_name_main = [f for f in files if has_name_main[f]]
if len(candidates_by_name_main) == 1:
return folder, candidates_by_name_main[0]
candidates_import_main = [
f for f in candidates_by_import if has_name_main[f]
]
if len(candidates_import_main) == 1:
return folder, candidates_import_main[0]
if len(candidates_import_main) > 1:
str_files = ', '.join(f'"{f}"' for f in candidates_import_main)
raise ErrorWithFeedback(
f'Cannot decide which file to run out of the following: {str_files}\n'
'They all have "if __name__ == \'__main__\'". Leave one file with this line.'
)
str_files = ', '.join(f'"{f}"' for f in (
candidates_by_import if len(candidates_by_import) else files))
raise ErrorWithFeedback(
f'Cannot decide which file to run out of the following: {str_files}\n'
'Write "if __name__ == \'__main__\'" in one of them to mark it as an entry point.'
)
raise ErrorWithFeedback(
'Cannot find a file to import and run your code.\n'
f'Are your project files located at \"{curr_folder}\"?')
def _check_errors(self):
if self.process.is_error_happened():
self.process.terminate()
raise ErrorWithFeedback(self.process.stderr)
def test(self):
status, feedback = TestRunTestInsideTest('main').run_tests()
if status != 0:
raise ErrorWithFeedback(feedback)
return CheckResult.correct()
def _check_errors(self):
for process_item in self.processes:
filename, process = process_item
if process.is_error_happened():
raise ErrorWithFeedback(
f'Error running "{filename}"\n\n{process.stderr}')
def launch_flask_applications(self, test_case: TestCase):
if not isinstance(test_case.attach, FlaskSettings):
raise UnexpectedError(
f'Flask tests should have FlaskSettings class as an attach, '
f'found {type(test_case.attach)}')
sources = test_case.attach.sources
if len(sources) == 0:
raise UnexpectedError(
f'Cannot find Flask applications to run, no sources were defined in tests'
)
new_sources = []
for source in sources:
filename, port = source
full_source = filename.replace('.', os.sep) + '.py'
full_path = os.path.abspath(full_source)
if not os.path.exists(full_path):
raise ErrorWithFeedback(
f'Cannot find file named "{os.path.basename(full_path)}" '
f'in folder "{os.path.dirname(full_path)}". '
f'Check if you deleted it.')
if port is None:
port = self.__find_free_port(test_case.attach.tryout_ports)
process = PopenWrapper(sys.executable, full_path,
f'localhost:{port}')
self.processes += [(full_source, process)]
i: int = 100
search_phrase = '(Press CTRL+C to quit)'
while i:
if search_phrase in process.stderr:
break
i -= 1
if process.is_error_happened():
i = 0
else:
sleep(0.1)
else:
stdout = process.stdout.strip()
stderr = process.stderr.strip()
error_info = (
f'Cannot start Flask server {full_source} '
f'because cannot find "{search_phrase}" in process\' output'
)
if len(stdout):
error_info += '\n\nstdout:\n' + stdout
if len(stderr):
error_info += '\n\nstderr:\n' + stderr
raise ErrorWithFeedback(error_info)
new_sources += [(filename, port)]
test_case.attach.sources = new_sources
