def test_compute_fitness_values_no_branches():
module_name = "tests.fixtures.branchcoverage.nobranches"
tracer = ExecutionTracer()
tracer.current_thread_ident = threading.currentThread().ident
with install_import_hook(module_name, tracer):
module = importlib.import_module(module_name)
importlib.reload(module)
executor = TestCaseExecutor(tracer)
chromosome = _get_test_for_no_branches_fixture(module)
goals = bcf.BranchCoverageFactory(executor).get_coverage_goals()
goals_dict = {}
for goal in goals:
chromosome.add_fitness_function(goal)
goals_dict[tracer.get_known_data().existing_code_objects[
goal._goal.code_object_id].code_object.co_name] = goal
fitness = chromosome.get_fitness()
assert fitness == 1
assert chromosome.fitness_values[goals_dict["__init__"]].fitness == 0.0
assert chromosome.fitness_values[goals_dict["other"]].fitness == 1.0
assert chromosome.fitness_values[goals_dict["<module>"]].fitness == 0.0
assert chromosome.fitness_values[goals_dict["get_x"]].fitness == 0.0
assert chromosome.fitness_values[goals_dict["identity"]].fitness == 0.0
assert chromosome.fitness_values[
goals_dict["DummyClass"]].fitness == 0.0
def _get_fitness_functions(self) -> List[ff.FitnessFunction]:
"""Converts a criterion into a test suite fitness function.
Returns:
A list of fitness functions
"""
if config.configuration.algorithm == config.Algorithm.MOSA:
factory = bcf.BranchCoverageFactory(self._executor)
fitness_functions: List[ff.FitnessFunction] = factory.get_coverage_goals()
self._logger.info(
"Instantiated %d fitness functions", len(fitness_functions)
)
return fitness_functions
return [self._get_test_suite_fitness_function()]
def test_compute_fitness_values_nested_branches():
module_name = "tests.fixtures.branchcoverage.nestedbranches"
tracer = ExecutionTracer()
tracer.current_thread_ident = threading.currentThread().ident
with install_import_hook(module_name, tracer):
module = importlib.import_module(module_name)
importlib.reload(module)
executor = TestCaseExecutor(tracer)
chromosome = _get_test_for_nested_branch_fixture(module)
goals = bcf.BranchCoverageFactory(executor).get_coverage_goals()
for goal in goals:
chromosome.add_fitness_function(goal)
fitness = chromosome.get_fitness()
assert fitness == pytest.approx(5.90782493)