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#! /usr/bin/env python
#
# Copyright 2018 - The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Parses the output of parse_ltp_{make,make_install} and generates a
# corresponding Android.mk.
#
# This process is split into two steps so this second step can later be replaced
# with an Android.bp generator.
from __future__ import print_function
"""Tool for comparing 2 LTP projects to find added / removed tests & testsuites"""
import os
import argparse
import os.path
import sys
def scan_tests(ltp_root, suite):
''' Find all tests that are run as part of given test suite in LTP.
Args:
ltp_root: Path ot the LTP project.
suite: Name of testsuite.
Returns:
List of tests names that are run as part of the given test suite.
'''
tests = []
if not suite:
return tests
runtest_dir = ltp_root + os.path.sep + 'runtest'
test_suiteFile = runtest_dir + os.path.sep + suite
if not os.path.isfile(test_suiteFile):
print ('No tests defined for suite {}',format(suite))
return tests
with open(test_suiteFile) as f:
for line in f:
line = line.strip()
if line and not line.startswith('#'):
tests.append(line.split()[0])
f.close()
return tests
def scan_test_suites(ltp_root, scenario):
''' Find all testuites and tests run as part of given LTP scenario
Args:
ltp_root: Path to the LTP project.
scenario: name of the scenario (found in ltp_root/scenario_groups). E.g. "vts"
Returns:
List of testsuite names that are run as part of given scenario (e.g. vts).
If scenario is not specified, return all testsuites.
'''
runtest_dir = ltp_root + os.path.sep + 'runtest'
if not os.path.isdir(runtest_dir):
print ('Invalid ltp_root {}, runtest directory doesnt exist'.format(ltp_root))
sys.exit(2)
test_suites = []
if scenario:
scenarioFile = ltp_root + os.path.sep + 'scenario_groups' + os.path.sep + scenario
if not os.path.isfile(scenarioFile):
return test_suites
with open(scenarioFile) as f:
for line in f:
line = line.strip()
if not line.startswith('#'):
test_suites.append(line)
return test_suites
runtest_dir = ltp_root + os.path.sep + 'runtest'
test_suites = [f for f in os.listdir(runtest_dir) if os.path.isfile(runtest_dir + os.path.sep + f)]
return test_suites
def scan_ltp(ltp_root, scenario):
''' scan LTP project and return all tests and testuites present.
Args:
ltp_root: Path to the LTP project.
scenario: specific scenario we want to scan. e.g. vts
Returns:
Dictionary of all LTP test names keyed by testsuite they are run as part of.
E.g.
{
'mem': ['oom01', 'mem02',...],
'syscalls': ['open01', 'read02',...],
...
}
'''
if not os.path.isdir(ltp_root):
print ('ltp_root {} does not exist'.format(ltp_root))
sys.exit(1)
test_suites = scan_test_suites(ltp_root, scenario)
if not test_suites:
print ('No Testsuites found for scenario {}'.format(scenario))
sys.exit(3)
ltp_tests = {}
for suite in test_suites:
ltp_tests[suite] = scan_tests(ltp_root, suite)
return ltp_tests
def show_diff(ltp_tests_1, ltp_tests_2):
''' Find and print diff between testcases in 2 LTP project checkouts.
Args:
ltp_tests_1: dictionary of tests keyed by test suite names
ltp_tests_2: dictionary of tests keyed by test suite names
'''
DEFAULT_WIDTH = 8
test_suites1 = set(sorted(ltp_tests_1.keys()))
test_suites2 = set(sorted(ltp_tests_2.keys()))
# Generate lists of deleted, added and common test suites between
# LTP1 & LTP2
deleted_test_suites = sorted(test_suites1.difference(test_suites2))
added_test_suites = sorted(test_suites2.difference(test_suites1))
common_test_suites = sorted(test_suites1.intersection(test_suites2))
deleted_tests = []
added_tests = []
for suite in common_test_suites:
tests1 = set(sorted(ltp_tests_1[suite]))
tests2 = set(sorted(ltp_tests_2[suite]))
exclusive_test1 = tests1.difference(tests2)
exclusive_test2 = tests2.difference(tests1)
for e in exclusive_test1:
deleted_tests.append(suite + '.' + e)
for e in exclusive_test2:
added_tests.append(suite + '.' + e)
# find the maximum width of a test suite name or test name
# we have to print to decide the alignment.
if not deleted_test_suites:
width_suites = DEFAULT_WIDTH
else:
width_suites = max([len(x) for x in deleted_test_suites])
if not deleted_tests:
width_tests = DEFAULT_WIDTH
else:
width_tests = max([len(x) for x in deleted_tests])
width = max(width_suites, width_tests);
# total rows we have to print
total_rows = max(len(deleted_test_suites), len(added_test_suites))
if total_rows > 0:
print ('{:*^{len}}'.format(' Tests Suites ', len=width*2+2))
print ('{:>{len}} {:>{len}}'.format('Deleted', 'Added', len=width))
for i in range(total_rows):
print ('{:>{len}} {:>{len}}'.format('' if i >= len(deleted_test_suites) else str(deleted_test_suites[i]),
'' if i >= len(added_test_suites) else str(added_test_suites[i]), len=width))
print('')
# total rows we have to print
total_rows = max(len(deleted_tests), len(added_tests))
if total_rows:
print ('{:*^{len}}'.format(' Tests ', len=width*2+2))
print ('{:>{len}} {:>{len}}'.format('Deleted', 'Added', len=width))
for i in range(total_rows):
print ('{:>{len}} {:>{len}}'.format('' if i >= len(deleted_tests) else str(deleted_tests[i]),
'' if i >= len(added_tests) else str(added_tests[i]), len=width))
def main():
arg_parser = argparse.ArgumentParser(
description='Diff 2 LTP projects for supported test cases')
arg_parser.add_argument('--ltp-root1',
dest='ltp_root1',
required=True,
help="LTP Root Directory before merge")
arg_parser.add_argument('--ltp-root2',
dest='ltp_root2',
required=True,
help="LTP Root Directory after merge")
arg_parser.add_argument('--scenario', default=None,
dest='scenario',
help="LTP scenario to list tests for")
args = arg_parser.parse_args()
ltp_tests1 = scan_ltp(args.ltp_root1, args.scenario)
ltp_tests2 = scan_ltp(args.ltp_root2, args.scenario)
show_diff(ltp_tests1, ltp_tests2)
if __name__ == '__main__':
main()