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9c24c9e0a3
When running all tests, restrict each test to a single core, otherwise we end up running spamming the host with N*N subprocesses despite --jobs=N passed to the testsuite. However, keep inner parallelism to N when running few tests, for dev convenience.
108 lines
3.6 KiB
Python
108 lines
3.6 KiB
Python
import os
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import os.path
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import sys
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from drivers.base_driver import BaseDriver
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class PythonDriver(BaseDriver):
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default_process_timeout = 600
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#
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# Driver entry poins
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#
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def set_up(self):
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super().set_up()
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for f in self.mandatory_files:
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self.check_file(f)
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@property
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def mandatory_files(self):
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"""
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Return the set of mandatory files for this driver. Meant to be
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overloaded by subclasses.
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"""
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return ['test.py']
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@property
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def script_and_args(self):
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"""
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Return the name of the python script to run, as well as the arguments.
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Meant to be overloaded by subclasses.
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"""
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return ['test.py']
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def run(self):
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# The "test.py" script will not import a generated library, however
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# another spawned script could: provide the path to the interpreter in
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# the environment so it can use it.
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derived_env = dict(os.environ)
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derived_env['PYTHON_INTERPRETER'] = self.python_interpreter
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derived_env['LANGKIT_ROOT_DIR'] = self.langkit_root_dir
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derived_env['LANGKIT_PRETTY_PRINT'] = str(
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int(self.env.options.pretty_print))
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derived_env['LANGKIT_JOBS'] = str(self.env.inner_jobs)
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# Unless this mechanism is specifically disabled, make the Langkit
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# library relative to this testsuite available to tests.
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if not self.env.options.no_auto_path:
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self.add_path(derived_env, 'PYTHONPATH', self.langkit_root_dir)
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# Make the common Python modules available from the testcase script
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self.add_path(derived_env, 'PYTHONPATH', self.support_dir)
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self.add_path(derived_env, 'PYTHONPATH', self.env.root_dir)
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# If code coverage is requested, run the test script under the
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# "coverage" program.
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if self.coverage_enabled:
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# Consider all Langkit Python source files, except modules which
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# are currently not tested at all.
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source = os.path.join(self.langkit_root_dir, 'langkit')
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argv = [
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'coverage', 'run', '--source={}'.format(source),
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'--rcfile={}'.format(os.path.join(self.testsuite_dir,
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'coverage.ini'))
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]
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derived_env['COVERAGE_FILE'] = self.coverage_file('coverage')
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else:
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argv = [sys.executable]
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if self.valgrind_enabled:
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derived_env['VALGRIND_ENABLED'] = '1'
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self.run_and_check(argv + self.script_and_args, derived_env)
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@property
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def support_dir(self):
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"""
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Return the absolute path to the directory for support Python modules.
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"""
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return os.path.join(self.testsuite_dir, 'python_support')
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def compute_failures(self):
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# RA22-015: For the transition to the concrete syntax, we want to
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# check-in and test unparsing results.
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failures = super().compute_failures()
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expected_lkt = self.test_dir('expected_concrete_syntax.lkt')
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actual_lkt = self.working_dir('concrete_syntax.lkt')
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# Some tests do not create a concrete_syntax.lkt file. There is nothing
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# to compare for them.
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if not os.path.exists(actual_lkt):
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return failures
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# We just open the file in append mode, to create it if it doesn't
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# exist.
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with open(expected_lkt, 'a+'):
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pass
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expected = self.read_file(expected_lkt)
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failures += self.compute_diff(
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expected_lkt, expected,
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self.read_file(actual_lkt),
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failure_message="unexpected concrete syntax"
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)
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return failures
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