[PATCH v2] TCPListen and TCPConnect test set added

Radek Pazdera rpazdera at redhat.com
Wed Aug 15 12:21:58 UTC 2012


On Tue, Aug 14, 2012 at 04:22:48PM +0200, Jan Tluka wrote:
> Tue, Aug 14, 2012 at 04:11:44PM CEST, jpirko at redhat.com wrote:
> >
> >Applying: TCPListen and TCPConnect test set added
> >/home/jirka/work/lnst/.git/rebase-apply/patch:205: trailing whitespace.
> >    Test spawns server(s) listening for TCP connection(s) on port(s) defined by 
> >warning: 1 line adds whitespace errors.

Those whitespace errors can be *really* annoying ...

I have them them in almost every patch I create.
Are there any tools or methods for avoiding them?

> >
> >But nevermind for now. I will fix this manually this time :)
> 
> Thank you almighty!
> 
> >
> >Jiri
> >
> >Mon, Aug 13, 2012 at 03:37:27PM CEST, jtluka at redhat.com wrote:
> >>Set of these tests provides possibility to test multiple TCP connections
> >>within two LNST commands. Data sent are random and every connection
> >>behaves differently in sense that number of packets is random as well.
> >>
> >>Following are two examples of commands in command sequence.
> >>
> >>    <define>
> >>        <alias name="my_range" value="10000-10100" />
> >>    </define>
> >>    <command machine_id="1" type="test" value="TCPListen" bg_id="1">
> >>        <options>
> >>            <option name="addr" value="{ip(1,1)}"/>
> >>            <option name="port_range" value="{$my_range}"/>
> >>        </options>
> >>    </command>
> >>    <command type="exec" value="sleep 5" />
> >>    <command machine_id="2" type="test" value="TCPConnect" bg_id="2">
> >>        <options>
> >>            <option name="addr" value="{ip(1,1)}"/>
> >>            <option name="port_range" value="{$my_range}"/>
> >>            <option name="sleep" value="0.5" />
> >>        </options>
> >>    </command>
> >>    <command machine_id="2" type="wait" value="2" />
> >>    <command machine_id="1" type="wait" value="1" />
> >>
> >>Repeated generation of connections can be achieved using following
> >>command (see 'cont' option):
> >>
> >>    <define>
> >>        <alias name="my_range" value="10000-10100" />
> >>    </define>
> >>    <command machine_id="1" type="test" value="TCPListen" bg_id="1">
> >>        <options>
> >>            <option name="addr" value="{ip(1,1)}"/>
> >>            <option name="port_range" value="{$my_range}"/>
> >>            <option name="cont" value="yes" />
> >>        </options>
> >>    </command>
> >>    <command type="exec" value="sleep 5" />
> >>    <command machine_id="2" type="test" value="TCPConnect" bg_id="2">
> >>        <options>
> >>            <option name="addr" value="{ip(1,1)}"/>
> >>            <option name="port_range" value="{$my_range}"/>
> >>            <option name="sleep" value="0.5" />
> >>            <option name="cont" value="yes" />
> >>        </options>
> >>    </command>
> >>    <command type="exec" value="sleep 60" />
> >>    <command machine_id="2" type="intr" value="2" />
> >>    <command machine_id="1" type="kill" value="1" />
> >>
> >>
> >>---
> >> Tests/TestTCPConnect.py |  167 +++++++++++++++++++++++++++++++++++++++++++++++
> >> Tests/TestTCPListen.py  |  127 +++++++++++++++++++++++++++++++++++
> >> 2 files changed, 294 insertions(+), 0 deletions(-)
> >> create mode 100644 Tests/TestTCPConnect.py
> >> create mode 100644 Tests/TestTCPListen.py
> >>
> >>diff --git a/Tests/TestTCPConnect.py b/Tests/TestTCPConnect.py
> >>new file mode 100644
> >>index 0000000..0a6c655
> >>--- /dev/null
> >>+++ b/Tests/TestTCPConnect.py
> >>@@ -0,0 +1,167 @@
> >>+"""
> >>+This module defines TCPConnect module
> >>+"""
> >>+
> >>+__author__ = """
> >>+jtluka at redhat.com (Jan Tluka)
> >>+"""
> >>+
> >>+import sys
> >>+import socket
> >>+import errno
> >>+from multiprocessing import Process, Lock
> >>+from signal import signal, SIGINT
> >>+from time import sleep
> >>+from random import randrange, sample
> >>+import logging
> >>+import re
> >>+from Common.TestsCommon import TestGeneric
> >>+
> >>+"""
> >>+Test description:
> >>+    Test spawns client(s) connecting to TCP port(s) defined by port or
> >>+    port_range option. When connected, the client sends random bursts of
> >>+    random data to server. If cont option is set the connections are initiated
> >>+    again and data is sent to server until interrupted by the controller.
> >>+
> >>+Parameters:
> >>+    addr ... mandatory, address to connect to
> >>+    port ... mandatory, port to send data
> >>+    sleep ... optional, sleep time between bursts, if undefined, the bursts
> >>+              are immediate
> >>+    cont ... optional, sets continuous mode of connecting, if set connections
> >>+             are infinitely re-spawned when closed
> >>+"""
> >>+
> >>+class ConnectionWorker():
> >>+    def __init__(self, host, port, sleep_time = None, continuous = None):
> >>+        self._tlock = Lock()
> >>+        self._terminate = 0
> >>+        self._host = host
> >>+        self._port = port
> >>+        self._sleep_time = sleep_time
> >>+        self._cont = continuous
> >>+        self._ascii = [chr(i) for i in range(0,255)]
> >>+
> >>+    def terminate(self):
> >>+        self._tlock.acquire()
> >>+        self._terminate=1
> >>+        self._tlock.release()
> >>+
> >>+    def run(self):
> >>+        loop = True
> >>+
> >>+        while loop:
> >>+            loop = (self._cont is not None)
> >>+            logging.debug("Starting connection to (%s) port %s " % (self._host,
> >>+                          self._port))
> >>+
> >>+            try:
> >>+                s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
> >>+                s.connect((self._host, self._port))
> >>+            except socket.error, msg:
> >>+                s.close()
> >>+                s = None
> >>+                logging.error(msg)
> >>+                return
> >>+
> >>+            for txs in range(10, randrange(20,100)):
> >>+                self._tlock.acquire()
> >>+                if self._terminate:
> >>+                    self._tlock.release()
> >>+                    logging.debug("Terminating connection on port %s" %
> >>+                                  self._port)
> >>+                    loop = False
> >>+                    break
> >>+                else:
> >>+                    self._tlock.release()
> >>+
> >>+                rnd_str = "".join(sample(self._ascii, len(self._ascii)))
> >>+                data = s.sendall(rnd_str)
> >>+                if (self._sleep_time):
> >>+                    sleep(self._sleep_time)
> >>+
> >>+            s.close()
> >>+
> >>+
> >>+class TestTCPConnect(TestGeneric):
> >>+    def _parse_options(self):
> >>+        addr = self.get_mopt("addr")
> >>+        if addr:
> >>+            self._host = addr
> >>+
> >>+        # either port or port_range should be set
> >>+        port = self.get_opt("port")
> >>+        if port:
> >>+            self._port = port
> >>+        else:
> >>+            port_range = self.get_opt("port_range")
> >>+            if port_range:
> >>+                self._port_range = port_range
> >>+            else:
> >>+                e = TestOptionMissing()
> >>+                raise e
> >>+
> >>+        sleep_time = float(self.get_opt("sleep"))
> >>+        if sleep_time:
> >>+            self._sleep_time = sleep_time
> >>+
> >>+        cont = self.get_opt("cont")
> >>+        if cont:
> >>+            self._cont = cont
> >>+
> >>+    def parse_port_range(self):
> >>+        if self._port_range == None:
> >>+            return []
> >>+
> >>+        for c in [',','-']:
> >>+            s = self._port_range.split(c)
> >>+            if len(s) == 2:
> >>+                break
> >>+
> >>+        if len(s) != 2:
> >>+            logging.error("Port range malformed! ", self._port_range)
> >>+
> >>+        low = int(s[0])
> >>+        high = int(s[1]) + 1
> >>+
> >>+        return range(low, high)
> >>+
> >>+    def _close_connections(self, signum, frame):
> >>+        logging.debug("Termination signal delivered ...")
> >>+        for cw in self._cw_instances:
> >>+            cw.terminate()
> >>+
> >>+    def _set_interrupt_handler(self):
> >>+        signal(SIGINT, self._close_connections)
> >>+
> >>+    def run(self):
> >>+        self._terminate = 0
> >>+        self._host = None
> >>+        self._port = None
> >>+        self._cont = None
> >>+        self._cw_instances = []
> >>+
> >>+        self._set_interrupt_handler()
> >>+
> >>+        self._parse_options()
> >>+
> >>+        ports = []
> >>+        if self._port:
> >>+            ports.extend(self._port)
> >>+        else:
> >>+            r = self.parse_port_range()
> >>+            ports.extend(r)
> >>+
> >>+        workers = []
> >>+        for p in ports:
> >>+            cw = ConnectionWorker(self._host, p, self._sleep_time, self._cont)
> >>+            self._cw_instances.append(cw)
> >>+
> >>+            w = Process(target=cw.run)
> >>+            w.start()
> >>+            workers.append(w)
> >>+
> >>+        logging.debug("Waiting for workers ...")
> >>+        for w in workers:
> >>+            w.join()
> >>diff --git a/Tests/TestTCPListen.py b/Tests/TestTCPListen.py
> >>new file mode 100644
> >>index 0000000..2b25f29
> >>--- /dev/null
> >>+++ b/Tests/TestTCPListen.py
> >>@@ -0,0 +1,127 @@
> >>+"""
> >>+This module defines TCPListen module
> >>+"""
> >>+
> >>+__author__ = """
> >>+jtluka at redhat.com (Jan Tluka)
> >>+"""
> >>+
> >>+import sys
> >>+import socket
> >>+import errno
> >>+import logging
> >>+import re
> >>+from multiprocessing import Process
> >>+from Common.TestsCommon import TestGeneric
> >>+
> >>+"""
> >>+Test description:
> >>+    Test spawns server(s) listening for TCP connection(s) on port(s) defined by 
> >>+    port or port_range options. When client connects to the port, server reads
> >>+    the data sent and close the connection when no more data is available.
> >>+    If cont option is set the connection is reopened and server reads data
> >>+    again.
> >>+
> >>+Parameters:
> >>+    addr ... optional, address to bind to, if undefined listen on all ifaces
> >>+    port ... mandatory, port to listen on
> >>+    cont ... optional, if set the listening port is reopened when the
> >>+             connection is closed
> >>+"""
> >>+
> >>+class TestTCPListen(TestGeneric):
> >>+    def __init__(self, command):
> >>+        self._addr = None
> >>+        self._port = None
> >>+        self._cont = None
> >>+        TestGeneric.__init__(self, command)
> >>+
> >>+    def _parse_options(self):
> >>+        addr = self.get_opt("addr")
> >>+        if addr:
> >>+            self._addr = addr
> >>+
> >>+        # either port or port_range should be set
> >>+        port = self.get_opt("port")
> >>+        if port:
> >>+            self._port = port
> >>+        else:
> >>+            port_range = self.get_opt("port_range")
> >>+            if port_range:
> >>+                self._port_range = port_range
> >>+            else:
> >>+                e = TestOptionMissing()
> >>+                raise e
> >>+
> >>+        cont = self.get_opt("cont")
> >>+        if cont:
> >>+            self._cont = cont
> >>+
> >>+    def _worker(self, host, port):
> >>+        logging.debug("Starting listener (%s) on port %s " % (host, port))
> >>+        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
> >>+
> >>+        try:
> >>+            s.bind((host, port))
> >>+            s.listen(1)
> >>+        except socket.error, msg:
> >>+            s.close()
> >>+            s = None
> >>+            logging.error(msg)
> >>+            return
> >>+
> >>+        loop = 1
> >>+
> >>+        while loop or self._cont:
> >>+            conn, addr = s.accept()
> >>+            logging.debug('Connected from ' + addr[0] + ' port:' +
> >>+                          str(addr[1]))
> >>+
> >>+            while 1:
> >>+                data = conn.recv(1024)
> >>+                if not data:
> >>+                    logging.debug('Client disconnected: ' + addr[0] +
> >>+                                  ' port:' + str(addr[1]))
> >>+                    break
> >>+
> >>+            conn.close()
> >>+            loop = 0
> >>+
> >>+    def _parse_port_range(self):
> >>+        if self._port_range == None:
> >>+            return []
> >>+
> >>+        for c in [',','-']:
> >>+            s = self._port_range.split(c)
> >>+            if len(s) == 2:
> >>+                break
> >>+
> >>+        if len(s) != 2:
> >>+            logging.error("Port range malformed! ", self._port_range)
> >>+
> >>+        low = int(s[0])
> >>+        high = int(s[1]) + 1
> >>+
> >>+        return range(low, high)
> >>+
> >>+    def run(self):
> >>+        self._parse_options()
> >>+
> >>+        ports = []
> >>+        if self._port:
> >>+            ports.extend(self._port)
> >>+        else:
> >>+            r = self._parse_port_range()
> >>+            ports.extend(r)
> >>+
> >>+        workers = []
> >>+
> >>+        for p in ports:
> >>+            w = Process(target=self._worker, args=(self._addr, p))
> >>+            w.start()
> >>+            workers.append(w)
> >>+
> >>+
> >>+        logging.debug("Waiting for workers ...")
> >>+        for w in workers:
> >>+            w.join()
> >>-- 
> >>1.7.6.5
> >>
> >>_______________________________________________
> >>LNST-developers mailing list
> >>LNST-developers at lists.fedorahosted.org
> >>https://lists.fedorahosted.org/mailman/listinfo/lnst-developers
> _______________________________________________
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