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path: root/src/integration-tests/gnunet_testing.py.in
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#!@PYTHON@
#    This file is part of GNUnet.
#    (C) 2010, 2017 Christian Grothoff (and other contributing authors)
#
#    GNUnet 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 2, or (at your
#    option) any later version.
#
#    GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
#    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
#    Boston, MA 02110-1301, USA.
#
# Functions for integration testing
import os
import subprocess
import sys
import shutil
import time
from gnunet_pyexpect import pexpect

class Check:
    def __init__(self, test):
        self.fulfilled = False
        self.conditions = list()
        self.test = test
    def add (self, condition):
        self.conditions.append(condition)
    def run (self):
        fulfilled = True
        pos = 0
        neg = 0
        for c in self.conditions:
            if (False == c.check ()):
                fulfilled = False
                neg += 1
            else:
                pos += 1
        return fulfilled
    def run_blocking (self, timeout, pos_cont, neg_cont):
        execs = 0;
        res = False
        while ((False == res) and (execs < timeout)):
            res = self.run()
            time.sleep(1)
            execs += 1
        if ((False == res) and (execs >= timeout)):
           print(('Check had timeout after ' +str(timeout)+ ' seconds'))
           neg_cont (self)
        elif ((False == res) and (execs < timeout)):
            if (None != neg_cont):
                neg_cont (self)
        else:
            if (None != pos_cont):
                pos_cont (self)
        return res     
    def run_once (self, pos_cont, neg_cont):
        execs = 0;
        res = False
        res = self.run()
        if ((res == False) and (neg_cont != None)):
            neg_cont (self)
        if ((res == True) and (pos_cont != None)):
            pos_cont (self)            
        return res
    def evaluate (self, failed_only):
        pos = 0
        neg = 0
        for c in self.conditions:
            if (False == c.evaluate (failed_only)):
                neg += 1
            else:
                pos += 1
        print((str(pos) +' out of '+ str (pos+neg) + ' conditions fulfilled'))
        return self.fulfilled
    def reset (self):
		self.fulfilled = False     
		for c in self.conditions:
			c.fulfilled = False
        
class Condition:
    def __init__(self):
        self.fulfilled = False
        self.type = 'generic'
    def __init__(self, type):
        self.fulfilled = False
        self.type = type
    def check(self):
        return False;
    def evaluate (self, failed_only):
        if ((self.fulfilled == False) and (failed_only == True)):
            print(str(self.type) + 'condition for was ' + str(self.fulfilled))
        elif (failed_only == False): 
            print(str(self.type) + 'condition for was ' + str(self.fulfilled))
        return self.fulfilled            

class FileExistCondition (Condition):
    def __init__(self, file):
        self.fulfilled = False
        self.type = 'file'
        self.file = file
    def check(self):
        if (self.fulfilled == False):
            res = os.path.isfile(self.file)
            if (res == True):
                self.fulfilled = True
                return True
            else:
                return False
        else:
            return True
    def evaluate (self, failed_only):
        if ((self.fulfilled == False) and (failed_only == True)):
            print(str(self.type) + 'condition for file '+self.file+' was ' + str(self.fulfilled))
        elif (failed_only == False): 
            print(str(self.type) + 'condition for file '+self.file+' was ' + str(self.fulfilled))
        return self.fulfilled

class StatisticsCondition (Condition):
    def __init__(self, peer, subsystem, name, value):
        self.fulfilled = False
        self.type = 'statistics'
        self.peer = peer;
        self.subsystem = subsystem;
        self.name = name;
        self.value = value;
        self.result = -1;
    def check(self):
        if (self.fulfilled == False):
            self.result = self.peer.get_statistics_value (self.subsystem, self.name)
            if (str(self.result) == str(self.value)):
                self.fulfilled = True
                return True
            else:
                return False
        else:
            return True
    def evaluate (self, failed_only):
        if (self.result == -1):
            res = 'NaN'
        else:
            res = str(self.result)
        if (self.fulfilled == False):
            fail = " FAIL!" 
            op = " != "
        else: 
            fail = ""
            op = " == "
        if (((self.fulfilled == False) and (failed_only == True)) or (failed_only == False)):
            print(self.peer.id[:4] + " " +self.peer.cfg + " " +  str(self.type) + ' condition in subsystem "' + self.subsystem.ljust(12) +'" : "' + self.name.ljust(30) +'" : (expected/real value) ' + str(self.value) + op + res + fail)
        return self.fulfilled    

# Specify two statistic values and check if they are equal  
class EqualStatisticsCondition (Condition):
    def __init__(self, peer, subsystem, name, peer2, subsystem2, name2):
        self.fulfilled = False
        self.type = 'equalstatistics'
        self.peer = peer;
        self.subsystem = subsystem;
        self.name = name;
        self.result = -1;
        self.peer2 = peer2;
        self.subsystem2 = subsystem2;
        self.name2 = name2;
        self.result2 = -1;
    def check(self):
        if (self.fulfilled == False):
            self.result = self.peer.get_statistics_value (self.subsystem, self.name);
            self.result2 = self.peer2.get_statistics_value (self.subsystem2, self.name2);
            if (str(self.result) == str(self.result2)):
                self.fulfilled = True
                return True
            else:
                return False
        else:
            return True
    def evaluate (self, failed_only):
        if (self.result == -1):
            res = 'NaN'
        else:
            res = str(self.result)
        if (self.result2 == -1):
            res2 = 'NaN'
        else:
            res2 = str(self.result2)            
        if (self.fulfilled == False):
            fail = " FAIL!" 
            op = " != "
        else: 
            fail = ""
            op = " == "
        if (((self.fulfilled == False) and (failed_only == True)) or (failed_only == False)):
            print(self.peer.id[:4] + ' "'  + self.subsystem.ljust(12) + '" "' + self.name.ljust(30) + '" == ' + str(self.result) +" " + self.peer2.id[:4] + ' "'  + self.subsystem2.ljust(12) + '" '+ self.name2.ljust(30) +  '" ' + str(self.result2))
        return self.fulfilled                    
        
class Test:
    def __init__(self, testname, verbose):
        self.peers = list()
        self.verbose = verbose;
        self.name = testname;
        srcdir = "../.."
        gnunet_pyexpect_dir = os.path.join (srcdir, "contrib")
        if gnunet_pyexpect_dir not in sys.path:
            sys.path.append (gnunet_pyexpect_dir)
        self.gnunetarm = ''        
        self.gnunetstatistics = ''
        if os.name == 'posix':
            self.gnunetarm = 'gnunet-arm'
            self.gnunetstatistics = 'gnunet-statistics'
            self.gnunetpeerinfo = 'gnunet-peerinfo'
        elif os.name == 'nt':
            self.gnunetarm = 'gnunet-arm.exe'
            self.gnunetstatistics = 'gnunet-statistics.exe'
            self.gnunetpeerinfo = 'gnunet-peerinfo.exe'    
        if os.name == "nt":
            shutil.rmtree (os.path.join (os.getenv ("TEMP"), testname), True)
        else:
            shutil.rmtree ("/tmp/" + testname, True)
    def add_peer (self, peer):
        self.peers.append(peer)
    def p (self, msg):
        if (self.verbose == True):
            print(msg)

class Peer:
    def __init__(self, test, cfg_file):
        if (False == os.path.isfile(cfg_file)):
            print(("Peer cfg " + cfg_file + ": FILE NOT FOUND"))
        self.id = "<NaN>"
        self.test = test
        self.started = False
        self.cfg = cfg_file 
    def __del__(self):
        if (self.started == True): 
            print('ERROR! Peer using cfg ' + self.cfg + ' was not stopped')
            ret = self.stop ()
            if (False == ret):
                print('ERROR! Peer using cfg ' + self.cfg + ' could not be stopped')
                self.started = False
            return ret
        else:
            return False
    def start (self):
        self.test.p ("Starting peer using cfg " + self.cfg)
        try:
            server = subprocess.Popen ([self.test.gnunetarm, '-sq', '-c', self.cfg])
            server.communicate ()    
        except OSError:
            print("Can not start peer")
            self.started = False
            return False
        self.started = True;
        test = ''
        try:
            server = pexpect ()
            server.spawn (None, [self.test.gnunetpeerinfo, '-c', self.cfg ,'-s'], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
            test = server.read("stdout", 1024)
        except OSError:
            print("Can not get peer identity")
        test = (test.split('`')[1])
        self.id = test.split('\'')[0]
        return True 
    def stop (self):
        if (self.started == False):
            return False
        self.test.p ("Stopping peer using cfg " + self.cfg)
        try:
            server = subprocess.Popen ([self.test.gnunetarm, '-eq', '-c', self.cfg])
            server.communicate ()    
        except OSError:
            print("Can not stop peer")
            return False
        self.started = False
        return True;
    def get_statistics_value (self, subsystem, name):
        server = pexpect ()
        server.spawn (None, [self.test.gnunetstatistics, '-c', self.cfg ,'-q','-n', name, '-s', subsystem ], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        #server.expect ("stdout", re.compile (r""))
        test = server.read("stdout", 10240)
        tests = test.partition('\n')
        # On W32 GNUnet outputs with \r\n, rather than \n
        if os.name == 'nt' and tests[1] == '\n' and tests[0][-1] == '\r':
            tests = (tests[0][:-1], tests[1], tests[2])
        tests = tests[0]
        if (tests.isdigit() == True):
            return tests
        else:
            return -1