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# Copyright (C) 2013-2019 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import absolute_import
import perftest.testresult as testresult
import perftest.reporter as reporter
from perftest.measure import Measure
from perftest.measure import MeasurementCpuTime
from perftest.measure import MeasurementWallTime
from perftest.measure import MeasurementVmSize
class TestCase(object):
"""Base class of all performance testing cases.
Each sub-class should override methods execute_test, in which
several GDB operations are performed and measured by attribute
measure. Sub-class can also override method warm_up optionally
if the test case needs warm up.
"""
def __init__(self, name, measure):
"""Constructor of TestCase.
Construct an instance of TestCase with a name and a measure
which is to measure the test by several different measurements.
"""
self.name = name
self.measure = measure
def execute_test(self):
"""Abstract method to do the actual tests."""
raise NotImplementedError("Abstract Method.")
def warm_up(self):
"""Do some operations to warm up the environment."""
pass
def run(self, warm_up=True, append=True):
"""Run this test case.
It is a template method to invoke method warm_up,
execute_test, and finally report the measured results.
If parameter warm_up is True, run method warm_up. If parameter
append is True, the test result will be appended instead of
overwritten.
"""
if warm_up:
self.warm_up()
self.execute_test()
self.measure.report(reporter.TextReporter(append), self.name)
class TestCaseWithBasicMeasurements(TestCase):
"""Test case measuring CPU time, wall time and memory usage."""
def __init__(self, name):
result_factory = testresult.SingleStatisticResultFactory()
measurements = [MeasurementCpuTime(result_factory.create_result()),
MeasurementWallTime(result_factory.create_result()),
MeasurementVmSize(result_factory.create_result())]
super (TestCaseWithBasicMeasurements, self).__init__ (name, Measure(measurements))
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