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gem5/tests/testing/tests.py
Andreas Sandberg 1ecc3628a8 tests: Add support for functional only tests 
Modify the ClassicTest class to only emit a stat verification test
unit if there is a reference stat file. This makes it possible to
design tests that don't care about stat changes.

To generate purely functional tests, we need to be able to create
empty test reference directories. This does not work well with many
revision control systems. As a workaround, add a file named EMPTY to
the list of ignored files in the test harness. This file can be used
as a placeholder in otherwise empty test directories.

Change-Id: I583c8c4e55479f0d48fa99d0b0d1eac9221e6652
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
2016-09-16 09:04:20 +01:00

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#!/usr/bin/env python
#
# Copyright (c) 2016 ARM Limited
# All rights reserved
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Andreas Sandberg
from abc import ABCMeta, abstractmethod
import os
from collections import namedtuple
from units import *
from results import TestResult
import shutil
_test_base = os.path.join(os.path.dirname(__file__), "..")
ClassicConfig = namedtuple("ClassicConfig", (
"category",
"mode",
"workload",
"isa",
"os",
"config",
))
# There are currently two "classes" of test
# configurations. Architecture-specific ones and generic ones
# (typically SE mode tests). In both cases, the configuration name
# matches a file in tests/configs/ that will be picked up by the test
# runner (run.py).
#
# Architecture specific configurations are listed in the arch_configs
# dictionary. This is indexed by a (cpu architecture, gpu
# architecture) tuple. GPU architecture is optional and may be None.
#
# Generic configurations are listed in the generic_configs tuple.
#
# When discovering available test cases, this script look uses the
# test list as a list of /candidate/ configurations. A configuration
# is only used if a test has a reference output for that
# configuration. In addition to the base configurations from
# arch_configs and generic_configs, a Ruby configuration may be
# appended to the base name (this is probed /in addition/ to the
# original name. See get_tests() for details.
#
arch_configs = {
("alpha", None) : (
'tsunami-simple-atomic',
'tsunami-simple-timing',
'tsunami-simple-atomic-dual',
'tsunami-simple-timing-dual',
'twosys-tsunami-simple-atomic',
'tsunami-o3', 'tsunami-o3-dual',
'tsunami-minor', 'tsunami-minor-dual',
'tsunami-switcheroo-full',
),
("arm", None) : (
'simple-atomic-dummychecker',
'o3-timing-checker',
'realview-simple-atomic',
'realview-simple-atomic-dual',
'realview-simple-atomic-checkpoint',
'realview-simple-timing',
'realview-simple-timing-dual',
'realview-o3',
'realview-o3-checker',
'realview-o3-dual',
'realview-minor',
'realview-minor-dual',
'realview-switcheroo-atomic',
'realview-switcheroo-timing',
'realview-switcheroo-o3',
'realview-switcheroo-full',
'realview64-simple-atomic',
'realview64-simple-atomic-checkpoint',
'realview64-simple-atomic-dual',
'realview64-simple-timing',
'realview64-simple-timing-dual',
'realview64-o3',
'realview64-o3-checker',
'realview64-o3-dual',
'realview64-minor',
'realview64-minor-dual',
'realview64-switcheroo-atomic',
'realview64-switcheroo-timing',
'realview64-switcheroo-o3',
'realview64-switcheroo-full',
),
("sparc", None) : (
't1000-simple-atomic',
't1000-simple-x86',
),
("timing", None) : (
'pc-simple-atomic',
'pc-simple-timing',
'pc-o3-timing',
'pc-switcheroo-full',
),
("x86", "hsail") : (
'gpu',
),
}
generic_configs = (
'simple-atomic',
'simple-atomic-mp',
'simple-timing',
'simple-timing-mp',
'minor-timing',
'minor-timing-mp',
'o3-timing',
'o3-timing-mt',
'o3-timing-mp',
'rubytest',
'memcheck',
'memtest',
'memtest-filter',
'tgen-simple-mem',
'tgen-dram-ctrl',
'learning-gem5-p1-simple',
'learning-gem5-p1-two-level',
)
all_categories = ("quick", "long")
all_modes = ("fs", "se")
class Test(object):
"""Test case base class.
Test cases consists of one or more test units that are run in two
phases. A run phase (units produced by run_units() and a verify
phase (units from verify_units()). The verify phase is skipped if
the run phase fails.
"""
__metaclass__ = ABCMeta
def __init__(self, name):
self.test_name = name
@abstractmethod
def ref_files(self):
"""Get a list of reference files used by this test case"""
pass
@abstractmethod
def run_units(self):
"""Units (typically RunGem5 instances) that describe the run phase of
this test.
"""
pass
@abstractmethod
def verify_units(self):
"""Verify the output from the run phase (see run_units())."""
pass
@abstractmethod
def update_ref(self):
"""Update reference files with files from a test run"""
pass
def run(self):
"""Run this test case and return a list of results"""
run_results = [ u.run() for u in self.run_units() ]
run_ok = all([not r.skipped() and r for r in run_results ])
verify_results = [
u.run() if run_ok else u.skip()
for u in self.verify_units()
]
return TestResult(self.test_name,
run_results=run_results,
verify_results=verify_results)
def __str__(self):
return self.test_name
class ClassicTest(Test):
# The diff ignore list contains all files that shouldn't be diffed
# using DiffOutFile. These files typically use special-purpose
# diff tools (e.g., DiffStatFile).
diff_ignore_files = FileIgnoreList(
names=(
# Stat files use a special stat differ
"stats.txt",
), rex=(
))
# These files should never be included in the list of
# reference files. This list should include temporary files
# and other files that we don't care about.
ref_ignore_files = FileIgnoreList(
names=(
"EMPTY",
), rex=(
# Mercurial sometimes leaves backups when applying MQ patches
r"\.orig$",
r"\.rej$",
))
def __init__(self, gem5, output_dir, config_tuple,
timeout=None,
skip=False, skip_diff_out=False, skip_diff_stat=False):
super(ClassicTest, self).__init__("/".join(config_tuple))
ct = config_tuple
self.gem5 = os.path.abspath(gem5)
self.script = os.path.join(_test_base, "run.py")
self.config_tuple = ct
self.timeout = timeout
self.output_dir = output_dir
self.ref_dir = os.path.join(_test_base,
ct.category, ct.mode, ct.workload,
"ref", ct.isa, ct.os, ct.config)
self.skip_run = skip
self.skip_diff_out = skip or skip_diff_out
self.skip_diff_stat = skip or skip_diff_stat
def ref_files(self):
ref_dir = os.path.abspath(self.ref_dir)
for root, dirs, files in os.walk(ref_dir, topdown=False):
for f in files:
fpath = os.path.join(root[len(ref_dir) + 1:], f)
if fpath not in ClassicTest.ref_ignore_files:
yield fpath
def run_units(self):
args = [
self.script,
"/".join(self.config_tuple),
]
return [
RunGem5(self.gem5, args,
ref_dir=self.ref_dir, test_dir=self.output_dir,
skip=self.skip_run),
]
def verify_units(self):
ref_files = set(self.ref_files())
units = []
if "stats.txt" in ref_files:
units.append(
DiffStatFile(ref_dir=self.ref_dir, test_dir=self.output_dir,
skip=self.skip_diff_stat))
units += [
DiffOutFile(f,
ref_dir=self.ref_dir, test_dir=self.output_dir,
skip=self.skip_diff_out)
for f in ref_files if f not in ClassicTest.diff_ignore_files
]
return units
def update_ref(self):
for fname in self.ref_files():
shutil.copy(
os.path.join(self.output_dir, fname),
os.path.join(self.ref_dir, fname))
def parse_test_filter(test_filter):
wildcards = ("", "*")
_filter = list(test_filter.split("/"))
if len(_filter) > 3:
raise RuntimeError("Illegal test filter string")
_filter += [ "", ] * (3 - len(_filter))
isa, cat, mode = _filter
if isa in wildcards:
raise RuntimeError("No ISA specified")
cat = all_categories if cat in wildcards else (cat, )
mode = all_modes if mode in wildcards else (mode, )
return isa, cat, mode
def get_tests(isa,
categories=all_categories, modes=all_modes,
ruby_protocol=None, gpu_isa=None):
# Generate a list of candidate configs
configs = list(arch_configs.get((isa, gpu_isa), []))
if (isa, gpu_isa) == ("x86", "hsail"):
if ruby_protocol == "GPU_RfO":
configs += ['gpu-randomtest']
else:
configs += generic_configs
if ruby_protocol == 'MI_example':
configs += [ "%s-ruby" % (c, ) for c in configs ]
elif ruby_protocol is not None:
# Override generic ISA configs when using Ruby (excluding
# MI_example which is included in all ISAs by default). This
# reduces the number of generic tests we re-run for when
# compiling Ruby targets.
configs = [ "%s-ruby-%s" % (c, ruby_protocol) for c in configs ]
# /(quick|long)/(fs|se)/workload/ref/arch/guest/config/
for conf_script in configs:
for cat in categories:
for mode in modes:
mode_dir = os.path.join(_test_base, cat, mode)
if not os.path.exists(mode_dir):
continue
for workload in os.listdir(mode_dir):
isa_dir = os.path.join(mode_dir, workload, "ref", isa)
if not os.path.isdir(isa_dir):
continue
for _os in os.listdir(isa_dir):
test_dir = os.path.join(isa_dir, _os, conf_script)
if not os.path.exists(test_dir) or \
os.path.exists(os.path.join(test_dir, "skip")):
continue
yield ClassicConfig(cat, mode, workload, isa, _os,
conf_script)
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