developer.intra2net.com Git - libasyncio/blob - unittest/test_simpleio_basics.cpp

   1 /*
   2 The software in this package is distributed under the GNU General
   3 Public License version 2 (with a special exception described below).
   4
   5 A copy of GNU General Public License (GPL) is included in this distribution,
   6 in the file COPYING.GPL.
   7
   8 As a special exception, if other files instantiate templates or use macros
   9 or inline functions from this file, or you compile this file and link it
  10 with other works to produce a work based on this file, this file
  11 does not by itself cause the resulting work to be covered
  12 by the GNU General Public License.
  13
  14 However the source code for this file must still be made available
  15 in accordance with section (3) of the GNU General Public License.
  16
  17 This exception does not invalidate any other reasons why a work based
  18 on this file might be covered by the GNU General Public License.
  19 */
  20 /** @file
  21  *
  22  * (c) Copyright 2007 by Intra2net AG
  23  */
  24
  25 //#define NOISEDEBUG
  26
  27 #include <string>
  28 #include <iostream>
  29 #include <iomanip>
  30 #include <vector>
  31
  32 #include <cppunit/extensions/TestFactoryRegistry.h>
  33 #include <cppunit/ui/text/TestRunner.h>
  34 #include <cppunit/extensions/HelperMacros.h>
  35
  36 #include <async_io.hpp>
  37 #include <async_pipe.hpp>
  38 #include <async_process.hpp>
  39 #include <async_timer.hpp>
  40 #include <async_callout.hpp>
  41 #include <async_socket.hpp>
  42 #include <filefunc.hxx>
  43 #include <containerfunc.hpp>
  44 #include <boost/signal.hpp>
  45 #include <boost/bind.hpp>
  46 #include <boost/random.hpp>
  47
  48
  49 #ifdef NOISEDEBUG
  50 #define DOUT(msg) std::cout << msg << std::endl
  51 #else
  52 #define DOUT(msg) do {} while (0)
  53 #endif
  54
  55
  56 using namespace I2n;
  57 using namespace AsyncIo;
  58
  59
  60 using namespace CppUnit;
  61
  62 namespace {
  63
  64
  65 struct Counter
  66 {
  67     int value;
  68
  69
  70     Counter() : value(0) { DOUT("Counter construct");}
  71
  72     void reset() { value=0;}
  73
  74     void advance()
  75     {
  76         DOUT(" advance called");
  77         ++value;
  78     }
  79
  80     int operator()()
  81     {
  82         DOUT(" () called");
  83         return ++value;
  84     }
  85 }; // eo struct Counter
  86
  87
  88 class TestTimer : public TimerBase
  89 {
  90     public:
  91
  92         TestTimer()
  93         : m_counter(0u)
  94         {
  95         } // eo TestTimer()
  96
  97
  98         void setDelta(long msec)
  99         {
 100             setDeltaWhenTime(0,msec);
 101             activate();
 102         } // eo setDelta(long)
 103
 104
 105         unsigned m_counter;
 106
 107     protected:
 108
 109         virtual void execute()
 110         {
 111             ++m_counter;
 112         } // eo execute()
 113
 114 }; // eo class TestTimer
 115
 116
 117
 118 struct ReceivedData
 119 {
 120     std::vector<std::string> m_received_vector;
 121     std::string m_received_string;
 122
 123     unsigned long m_count_lines;
 124     unsigned long m_data_size;
 125
 126
 127     void resetReceivedData()
 128     {
 129         m_received_vector.clear();
 130         m_received_string.clear();
 131         m_count_lines= 0uL;
 132         m_data_size= 0uL;
 133     } // eo reset
 134
 135
 136     void receiveData(const std::string& data)
 137     {
 138         m_received_vector.push_back(data);
 139         m_received_string.append(data);
 140         ++m_count_lines;
 141         m_data_size += data.size();
 142     } // eo receiveData(const std::string&)
 143
 144 }; // eo struct ReceivedData
 145
 146
 147
 148 class TestPipe : public SimplePipe, public ReceivedData
 149 {
 150     public:
 151         TestPipe()
 152         : SimplePipe()
 153         {
 154             signal_received_string.connect( boost::bind(&TestPipe::receiveData, this, _1) );
 155         } // eo TestPipe()
 156
 157
 158
 159     protected:
 160
 161 }; // eo class TestPipe
 162
 163
 164 class TestIO : public SimpleIO2, public ReceivedData
 165 {
 166     public:
 167         TestIO()
 168         {
 169             signal_received_string.connect( boost::bind(&TestIO::receiveData, this, _1) );
 170         }
 171
 172 }; // eo TestIO
 173
 174
 175 class TestProcess : public ProcessImplementation, public ReceivedData
 176 {
 177     public:
 178         TestProcess(
 179             const std::string& path,
 180             const std::vector<std::string>& args= std::vector<std::string>() )
 181         : ProcessImplementation(path,args)
 182         {
 183             m_signal_read.connect( boost::bind(&TestProcess::slotReceivedData, this) );
 184         } // eo Testprocess(const std::string&, const std::vector<std::string>&)
 185
 186         TestProcess(
 187             const std::string& path,
 188             const std::string& arg1 )
 189         : ProcessImplementation(
 190             path,
 191             TransientPushBackFiller< std::string,std::vector >()(arg1)
 192           )
 193         {
 194             m_signal_read.connect( boost::bind(&TestProcess::slotReceivedData, this) );
 195         } // eo Testprocess(const std::string&, const std::vector<std::string>&)
 196
 197         TestProcess(
 198             const std::string& path,
 199             const std::string& arg1, const std::string& arg2 )
 200         : ProcessImplementation(
 201             path,
 202             TransientPushBackFiller< std::string, std::vector >()(arg1)(arg2)
 203           )
 204         {
 205             m_signal_read.connect( boost::bind(&TestProcess::slotReceivedData, this) );
 206         } // eo Testprocess(const std::string&, const std::vector<std::string>&)
 207
 208
 209
 210         pid_t pid() { return m_pid; }
 211
 212         bool kill( Signal signal) { return ProcessImplementation::kill(signal); }
 213
 214     protected:
 215
 216         void slotReceivedData()
 217         {
 218             receiveData(m_input_buffer);
 219             m_input_buffer.clear();
 220         } // eo slotReceivedData()
 221
 222 }; // eo class TestProcess
 223
 224
 225
 226 class TestUnixIOSocket
 227 : public UnixIOSocket
 228 , public ReceivedData
 229 {
 230     public:
 231
 232         TestUnixIOSocket()
 233         : UnixIOSocket()
 234         {
 235             m_signal_read.connect( boost::bind(&TestUnixIOSocket::slotReceivedData, this) );
 236         } // eo TestUnixIOSocket()
 237
 238
 239         TestUnixIOSocket(
 240             int fd, const std::string& path,
 241             unsigned int peer_pid, unsigned int peer_uid, unsigned int peer_gid
 242         )
 243         : UnixIOSocket(fd, path, peer_pid, peer_uid, peer_gid)
 244         {
 245             m_signal_read.connect( boost::bind(&TestUnixIOSocket::slotReceivedData, this) );
 246         } // eo TestUnixIOSocket()
 247
 248
 249         void sendData(const std::string& data)
 250         {
 251             lowSend(data);
 252         } // eo sendData(const std::string&)
 253
 254     protected:
 255
 256         void slotReceivedData()
 257         {
 258             receiveData(m_input_buffer);
 259             m_input_buffer.clear();
 260         } // eo slotReceivedData()
 261
 262 }; // eo class TestUnixIOSocket
 263
 264 typedef boost::shared_ptr< TestUnixIOSocket > TestUnixIOSocketPtr;
 265
 266
 267 class UnixIOSocketHolder
 268 : public std::vector< UnixIOSocketPtr >
 269 {
 270     public:
 271
 272         void operator()(UnixIOSocketPtr ptr)
 273         {
 274             push_back(ptr);
 275         }
 276
 277         void storeBase (IOImplementationPtr ptr)
 278         {
 279             push_back(boost::dynamic_pointer_cast< UnixIOSocket >(ptr) );
 280         }
 281
 282         void store (UnixIOSocketPtr ptr)
 283         {
 284             push_back(ptr);
 285         }
 286
 287         TestUnixIOSocketPtr get(int idx)
 288         {
 289             return boost::dynamic_pointer_cast<
 290                 TestUnixIOSocket
 291             >( (*this)[idx] );
 292         }
 293 }; // eo class UnixIOSocketHolder
 294
 295
 296 /// global random generator (from boost lib).
 297 boost::mt19937 g_random_gen;
 298
 299
 300 /**
 301  * generates a string with random characters from a given ASCII subset.
 302  * @param len the desired length of the output string
 303  * @return a random string of length @a len
 304  */
 305 std::string makeRandomAsciiString(std::string::size_type len)
 306 {
 307     static std::string chars("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz=+-*/%(){}<>.,:;\\");
 308     std::string s;
 309
 310     boost::uniform_int<> discreter(0, chars.size()-1);
 311     boost::variate_generator<boost::mt19937&, boost::uniform_int<> > idxgen(g_random_gen, discreter);
 312
 313     for(; len-->0;) s+= chars.at( idxgen() );
 314
 315     return s;
 316 } // eo makeRandomAsciiString
 317
 318
 319 } // eo namespace <anonymous>
 320
 321
 322
 323 class TestSimpleioBasics : public TestFixture
 324 {
 325     CPPUNIT_TEST_SUITE(TestSimpleioBasics);
 326
 327     CPPUNIT_TEST(EmptyBackendStepCall);
 328     CPPUNIT_TEST(NonEmptyBackendStepCall);
 329     CPPUNIT_TEST(SingleTimerShot);
 330     CPPUNIT_TEST(SimpleTimerShot);
 331     CPPUNIT_TEST(SimpleTimerShot2);
 332
 333     CPPUNIT_TEST(EmptyWantTest);
 334     CPPUNIT_TEST(SimplePipeTest);
 335     CPPUNIT_TEST(SimplePipePump);
 336
 337     CPPUNIT_TEST(SimpleProcessTestBinTrue);
 338     CPPUNIT_TEST(SimpleProcessTestBinFalse);
 339     CPPUNIT_TEST(SimpleProcessTestEcho);
 340     CPPUNIT_TEST(SimpleProcessTestStderr);
 341     CPPUNIT_TEST(SignaledProcessTermination);
 342
 343
 344     CPPUNIT_TEST(CallOut1);
 345     CPPUNIT_TEST(CallOut2);
 346     CPPUNIT_TEST(RemoveCallOut1);
 347
 348     CPPUNIT_TEST(FrozenCall_Thaw);
 349     CPPUNIT_TEST(FrozenCall_Decay);
 350
 351
 352     CPPUNIT_TEST(UnixSockets_ClientServer);
 353
 354
 355     //CPPUNIT_TEST(Dummy);
 356     CPPUNIT_TEST_SUITE_END();
 357
 358     protected:
 359
 360         Backend *backend;
 361         std::set<std::string>  used_check_files;
 362
 363
 364         template<class Callable>
 365         bool backendLoopUntil( Callable condition, int maxLoops=100 )
 366         {
 367             for (int i=std::max(maxLoops,1); i-->0 && ! condition();)
 368             {
 369                 backend->doOneStep(10);
 370             }
 371             return condition();
 372         } // eo backendLoopUntil
 373
 374
 375         bool backendStep(int msTimeout= 10, int count=1)
 376         {
 377             bool res= true;
 378             for(;count-->0 && res;)
 379             {
 380                 res= backend->doOneStep(msTimeout);
 381             }
 382             return res;
 383         } // eo backendStep
 384
 385
 386         std::string getCheckFilepath(std::string tag)
 387         {
 388             std::string result;
 389             result= "__unittest__" + tag + ".dat";
 390             used_check_files.insert(result);
 391             return result;
 392         } // eo get_check_file_path
 393
 394
 395         void removeCheckFiles()
 396         {
 397             for(std::set<std::string>::iterator it= used_check_files.begin();
 398                 it != used_check_files.end();
 399                 ++it)
 400             {
 401                 std::string filepath(*it);
 402                 if (path_exists(filepath))
 403                 {
 404                     unlink(filepath);
 405                 }
 406             }
 407             used_check_files.clear();
 408         } // eo removeCheckFiles
 409
 410
 411
 412     public:
 413
 414         void setUp()
 415         {
 416             backend = Backend::getBackend();
 417             installChildHandler();
 418             used_check_files.clear();
 419         } // eo setUp
 420
 421
 422         void tearDown()
 423         {
 424             restoreChildHandler();
 425             removeCheckFiles();
 426         } // eo tearDown
 427
 428
 429         /*
 430          * the tests:
 431          */
 432
 433
 434         /*
 435         ** basics:
 436         */
 437
 438
 439         void EmptyBackendStepCall()
 440         {
 441             CPPUNIT_ASSERT( backend );
 442
 443             // a backend call without active objects should return false:
 444             bool result = backend->doOneStep(0);
 445
 446             CPPUNIT_ASSERT_EQUAL( false, result );
 447         } // eo EmptyBackendStepCall
 448
 449
 450
 451         void NonEmptyBackendStepCall()
 452         {
 453             CPPUNIT_ASSERT(backend);
 454
 455             {
 456                 TestTimer timer;
 457                 timer.setDelta(10);
 458                 // with an active object, a step should return true:
 459                 bool result = backend->doOneStep(0);
 460                 CPPUNIT_ASSERT_EQUAL( true, result );
 461                 // the timer should not be executed:
 462                 CPPUNIT_ASSERT_EQUAL( 0u, timer.m_counter );
 463             }
 464             // now it should return false:
 465             bool result = backend->doOneStep(0);
 466             CPPUNIT_ASSERT_EQUAL( false, result );
 467         } // eo NonEmptyBackendStepCall
 468
 469
 470
 471         /**
 472          * check for timer to execute immediatly.
 473          */
 474         void SingleTimerShot()
 475         {
 476             CPPUNIT_ASSERT(backend);
 477
 478             TestTimer timer;
 479             timer.setDelta(0); // shot now!
 480
 481             bool result = backend->doOneStep(10);
 482
 483             CPPUNIT_ASSERT_EQUAL( true, result );
 484             // the timer should be executed once:
 485             CPPUNIT_ASSERT_EQUAL( 1u, timer.m_counter );
 486
 487             result = backend->doOneStep(0);
 488
 489             CPPUNIT_ASSERT_EQUAL( false, result );
 490             // the timer should not be executed again:
 491             CPPUNIT_ASSERT_EQUAL( 1u, timer.m_counter );
 492
 493         } // eo SingleTimerShot()
 494
 495
 496
 497         /**
 498          * tests a simple timer class to be executed with a timeout.
 499          */
 500         void SimpleTimerShot()
 501         {
 502             bool res;
 503             CPPUNIT_ASSERT(backend);
 504
 505             SimpleTimer timer1;
 506             Counter counter1;
 507             timer1.addAction( boost::bind(&Counter::advance,&counter1) );
 508             CPPUNIT_ASSERT_EQUAL(false, timer1.active());
 509
 510             timer1.startTimerMS( 100 );
 511             CPPUNIT_ASSERT_EQUAL(true, timer1.active());
 512
 513             res=backend->doOneStep( 1000 );
 514             CPPUNIT_ASSERT_EQUAL( true, res );
 515
 516             CPPUNIT_ASSERT_EQUAL( 1, counter1.value );
 517         } // eo SimpleTimerShot
 518
 519
 520
 521         /**
 522          * tests 3 timers; after the first was active, disable another and check if the remaining one fires.
 523          */
 524         void SimpleTimerShot2()
 525         {
 526             bool res;
 527             CPPUNIT_ASSERT(backend);
 528
 529             SimpleTimer timer1, timer2, timer3;
 530             Counter counter1, counter2, counter3;
 531             timer1.addAction( boost::bind(&Counter::advance,&counter1) );
 532             timer2.addAction( boost::bind(&Counter::advance,&counter2) );
 533             timer3.addAction( boost::bind(&Counter::advance,&counter3) );
 534             CPPUNIT_ASSERT_EQUAL(false, timer1.active());
 535             CPPUNIT_ASSERT_EQUAL(false, timer2.active());
 536             CPPUNIT_ASSERT_EQUAL(false, timer3.active());
 537
 538             timer1.startTimerMS( 100 );
 539             timer2.startTimerMS( 500 );
 540             timer3.startTimerMS( 400 );
 541             CPPUNIT_ASSERT_EQUAL(true, timer1.active());
 542             CPPUNIT_ASSERT_EQUAL(true, timer2.active());
 543             CPPUNIT_ASSERT_EQUAL(true, timer3.active());
 544
 545             res=backend->doOneStep( 1000 );
 546             CPPUNIT_ASSERT_EQUAL( true, res );
 547
 548             CPPUNIT_ASSERT_EQUAL(false, timer1.active());
 549             CPPUNIT_ASSERT_EQUAL(true, timer2.active());
 550             CPPUNIT_ASSERT_EQUAL(true, timer3.active());
 551
 552             CPPUNIT_ASSERT_EQUAL( 1, counter1.value );
 553             CPPUNIT_ASSERT_EQUAL( 0, counter2.value );
 554             CPPUNIT_ASSERT_EQUAL( 0, counter3.value );
 555
 556             // now stop the next timer:
 557             timer3.stopTimer();
 558             CPPUNIT_ASSERT_EQUAL(false, timer3.active());
 559
 560             res=backend->doOneStep( 1000 );
 561             CPPUNIT_ASSERT_EQUAL( true, res );
 562
 563             CPPUNIT_ASSERT_EQUAL( 1, counter1.value );
 564             CPPUNIT_ASSERT_EQUAL( 1, counter2.value );
 565             CPPUNIT_ASSERT_EQUAL( 0, counter3.value );
 566         } // eo SimpleTimerShot2
 567
 568
 569
 570
 571         /*
 572         ** I/O tests:
 573         */
 574
 575         void EmptyWantTest()
 576         {
 577             IOImplementation io;
 578
 579             CPPUNIT_ASSERT_EQUAL(false, io.wantRead() );
 580             CPPUNIT_ASSERT_EQUAL(false, io.wantWrite() );
 581         } // eo EmptyWantTest
 582
 583
 584         /**
 585          * a simple pipe (and io) test.
 586          *
 587          * This test basically tests the io framework.
 588          * It opens two connected pipes and sends a test string in each direction.
 589          * It tests the following functionalities of the base classes:
 590          *   - set write marks in backend step (enabling direct send of data)
 591          *   - low send data
 592          *   - construct and interpret poll() data structures
 593          *   - receive data
 594          *   - signal chains for received data
 595          *   - eof detection
 596          *   .
 597          *
 598          */
 599         void SimplePipeTest()
 600         {
 601             static const std::string test_string("a test string");
 602             static const std::string test_string2("only another short test string");
 603
 604             CPPUNIT_ASSERT(backend);
 605
 606             TestPipe pipe1, pipe2;
 607
 608             bool res= pipe1.makePipe(pipe2);
 609
 610             CPPUNIT_ASSERT_EQUAL(true, res);
 611             CPPUNIT_ASSERT_EQUAL(true, pipe1.opened());
 612             CPPUNIT_ASSERT_EQUAL(true, pipe2.opened());
 613
 614             res= backend->doOneStep(0);
 615             CPPUNIT_ASSERT_EQUAL(true, res);
 616
 617             pipe1.sendString(test_string);
 618
 619             res= backend->doOneStep(0);
 620             CPPUNIT_ASSERT_EQUAL(true, res);
 621
 622             CPPUNIT_ASSERT_EQUAL( test_string, pipe2.m_received_string );
 623
 624             pipe2.sendString(test_string2);
 625
 626             res= backend->doOneStep(0);
 627             CPPUNIT_ASSERT_EQUAL(true, res);
 628
 629             CPPUNIT_ASSERT_EQUAL( test_string2, pipe1.m_received_string );
 630
 631             pipe1.close();
 632             CPPUNIT_ASSERT_EQUAL(false, pipe1.opened());
 633
 634             res= backend->doOneStep(0);
 635             CPPUNIT_ASSERT_EQUAL(true, res);
 636
 637             CPPUNIT_ASSERT_EQUAL(true, pipe2.eof());
 638         } // eo SimplePipeTest
 639
 640
 641
 642         /**
 643          * sends a larger data chunk through a pipe.
 644          * This tests if sending and receiving data in (smaller internal) chunks works.
 645          */
 646         void SimplePipePump()
 647         {
 648             CPPUNIT_ASSERT(backend);
 649
 650             TestPipe pipe1, pipe2;
 651
 652             bool res= pipe1.makePipe(pipe2);
 653
 654             CPPUNIT_ASSERT_EQUAL(true, res);
 655             CPPUNIT_ASSERT_EQUAL(true, pipe1.opened());
 656             CPPUNIT_ASSERT_EQUAL(true, pipe2.opened());
 657
 658             res= backend->doOneStep(0);
 659             CPPUNIT_ASSERT_EQUAL(true, res);
 660
 661             std::string test_string= makeRandomAsciiString(256*1024);
 662
 663             pipe1.sendString(test_string);
 664
 665             res= backend->doOneStep(0);
 666             CPPUNIT_ASSERT_EQUAL(true, res);
 667
 668             // do some backend cycles to empty the pipe:
 669             for (int i=32; i-->0 && res && !pipe1.empty(); )
 670             {
 671                 res= backend->doOneStep(100);
 672             };
 673
 674             pipe1.close();
 675             CPPUNIT_ASSERT_EQUAL(false, pipe1.opened());
 676
 677             // now read the remaining data until we recognize EOF:
 678             for (int i=32; i-->0 && res && !pipe2.eof();)
 679             {
 680                 res= backend->doOneStep(100);
 681             }
 682
 683             CPPUNIT_ASSERT_EQUAL( test_string.size(), pipe2.m_received_string.size() );
 684             CPPUNIT_ASSERT_EQUAL( test_string, pipe2.m_received_string );
 685
 686             CPPUNIT_ASSERT_EQUAL(true, pipe2.eof());
 687         } // eo SimplePipePump
 688
 689
 690
 691         /**
 692          * fork a subprocess (/bin/true) and test exit code.
 693          */
 694         void SimpleProcessTestBinTrue()
 695         {
 696             bool res;
 697             CPPUNIT_ASSERT(backend);
 698
 699             TestProcess proc("/bin/true");
 700
 701             res= proc.startProcess();
 702             CPPUNIT_ASSERT_EQUAL(true, res);
 703
 704             res= backend->doOneStep(200);
 705             CPPUNIT_ASSERT_EQUAL(true, res);
 706
 707             for(int i=20; i-->0 && proc.processState() != ProcessState::stopped;)
 708             {
 709                 backend->doOneStep(15);
 710             }
 711
 712             CPPUNIT_ASSERT_EQUAL( ProcessState(ProcessState::stopped), proc.processState() );
 713             CPPUNIT_ASSERT_EQUAL( true, proc.eof() );
 714             CPPUNIT_ASSERT_EQUAL( 0, proc.exitCode() );
 715         } // eo SimpleProcessTestBinTrue
 716
 717
 718         /**
 719          * fork a subprocess (/bin/false) and test exit code.
 720          */
 721         void SimpleProcessTestBinFalse()
 722         {
 723             bool res;
 724             CPPUNIT_ASSERT(backend);
 725
 726             TestProcess proc("/bin/false");
 727
 728             res= proc.startProcess();
 729             CPPUNIT_ASSERT_EQUAL(true, res);
 730
 731             res= backend->doOneStep(200);
 732             CPPUNIT_ASSERT_EQUAL(true, res);
 733             for(int i=20; i-->0 && proc.processState() != ProcessState::stopped;)
 734             {
 735                 backend->doOneStep(15);
 736             }
 737
 738             CPPUNIT_ASSERT_EQUAL( ProcessState(ProcessState::stopped), proc.processState() );
 739             CPPUNIT_ASSERT_EQUAL( true, proc.eof() );
 740             CPPUNIT_ASSERT_EQUAL( 1, proc.exitCode() );
 741             DOUT("leave SimpleProcessTestBinFalse");
 742         } // eo SimpleProcessTestBinFalse
 743
 744
 745         /**
 746          * fork an echo subprocess and read back the output.
 747          */
 748         void SimpleProcessTestEcho()
 749         {
 750             DOUT("enter SimpleProcessTestEcho");
 751             bool res;
 752             CPPUNIT_ASSERT(backend);
 753
 754             TestProcess proc(
 755                 "/bin/echo",
 756                TransientPushBackFiller<std::string, std::vector >()("Eine")("Zeichenkette")
 757             );
 758
 759             res= proc.startProcess();
 760             CPPUNIT_ASSERT_EQUAL(true, res);
 761
 762             res= backend->doOneStep(200);
 763             CPPUNIT_ASSERT_EQUAL(true, res);
 764             for(int i=20; i-->0 && (proc.processState()!= ProcessState::stopped || !proc.eof());)
 765             {
 766                 backend->doOneStep(10);
 767             }
 768
 769             CPPUNIT_ASSERT_EQUAL( ProcessState(ProcessState::stopped), proc.processState() );
 770             CPPUNIT_ASSERT_EQUAL( true, proc.eof() );
 771             CPPUNIT_ASSERT_EQUAL( 0, proc.exitCode() );
 772             CPPUNIT_ASSERT_EQUAL( std::string("Eine Zeichenkette\n"), proc.m_received_string);
 773         } // eo SimpleProcessTestEcho
 774
 775
 776
 777         /**
 778          * fork a bash subprocess, echo something on stderr and read back the output.
 779          */
 780         void SimpleProcessTestStderr()
 781         {
 782             bool res;
 783             CPPUNIT_ASSERT(backend);
 784
 785             TestIO my_stderr;
 786
 787             TestProcess proc(
 788                 "/bin/bash",
 789                 TransientPushBackFiller<std::string, std::vector >()
 790                     ("-c")
 791                     ("echo Eine Zeichenkette >&2")
 792             );
 793
 794             // start with a seperate io object for stderr.
 795             DOUT("## start process");
 796             res= proc.startProcess( &my_stderr );
 797             CPPUNIT_ASSERT_EQUAL(true, res);
 798             CPPUNIT_ASSERT_EQUAL(true, my_stderr.opened());
 799
 800             DOUT("## do a backend step");
 801             res= backend->doOneStep(200);
 802             CPPUNIT_ASSERT_EQUAL(true, res);
 803             // wait until process stopped and both io's signal EOF (or until the loop ends ;-) )
 804             DOUT("## enter loop");
 805             for(int i=17; i-->0 && (proc.processState()!= ProcessState::stopped || !proc.eof() || !my_stderr.eof());)
 806             {
 807                 DOUT("## round i=" << i);
 808                 backend->doOneStep(10);
 809             }
 810             DOUT("## loop left");
 811
 812             CPPUNIT_ASSERT_EQUAL( ProcessState(ProcessState::stopped), proc.processState() );
 813             CPPUNIT_ASSERT_EQUAL( true, proc.eof() );
 814             CPPUNIT_ASSERT_EQUAL( true, my_stderr.eof() );
 815             CPPUNIT_ASSERT_EQUAL( 0, proc.exitCode() );
 816             CPPUNIT_ASSERT_EQUAL( std::string("Eine Zeichenkette\n"), my_stderr.m_received_string);
 817             DOUT("leave Test SimpleProcessTestStderr");
 818         } // eo SimpleProcessTestStderr
 819
 820
 821
 822         /**
 823          * checks termination of process by signal and if the signal is returned.
 824          */
 825         void SignaledProcessTermination()
 826         {
 827             bool res;
 828             CPPUNIT_ASSERT(backend);
 829
 830             TestProcess proc("/bin/sleep","2");
 831             res= proc.startProcess();
 832             CPPUNIT_ASSERT_EQUAL(true, res);
 833
 834             res= backend->doOneStep(10);
 835             CPPUNIT_ASSERT_EQUAL(true, res);
 836             CPPUNIT_ASSERT_EQUAL( ProcessState(ProcessState::running), proc.processState() );
 837
 838             res= backend->doOneStep(50);
 839
 840             // now send the process an USR1 (which terminates the process)
 841             res=proc.kill( Signal::USR1 );
 842             CPPUNIT_ASSERT_EQUAL(true, res);
 843
 844             // give the backend a chance to process the termination event:
 845             for(int i=30; i-->0 && proc.processState()!=ProcessState::stopped;) backend->doOneStep(10);
 846
 847             CPPUNIT_ASSERT_EQUAL( ProcessState(ProcessState::stopped), proc.processState() );
 848             CPPUNIT_ASSERT_EQUAL( true, proc.eof() );
 849             CPPUNIT_ASSERT_EQUAL( Signal::USR1 , proc.exitCode()>>8 );
 850         } // eo SignaledProcessTermination
 851
 852
 853
 854         void CallOut1()
 855         {
 856             Counter count;
 857
 858             callOut( boost::bind(&Counter::advance, &count), 1 );
 859             backend->doOneStep( 10 );
 860
 861             CPPUNIT_ASSERT_EQUAL( 0, count.value );
 862             backend->doOneStep( 1100 );
 863
 864             CPPUNIT_ASSERT_EQUAL( 1, count.value );
 865         } // eo CallOut1()
 866
 867
 868
 869         void CallOut2()
 870         {
 871             Counter count;
 872
 873             callOut( boost::bind(&Counter::advance, &count), 0.5 );
 874             backend->doOneStep( 10 );
 875
 876             CPPUNIT_ASSERT_EQUAL( 0, count.value );
 877             backend->doOneStep( 800 );
 878
 879             CPPUNIT_ASSERT_EQUAL( 1, count.value );
 880         } // eo CallOut2()
 881
 882
 883
 884         void RemoveCallOut1()
 885         {
 886             Counter count;
 887
 888             CallOutId id= callOut( boost::bind(&Counter::advance, &count), 1 );
 889             backend->doOneStep( 10 );
 890
 891             CPPUNIT_ASSERT_EQUAL( 0, count.value );
 892             bool res1 = removeCallOut(id);
 893             bool res2 = removeCallOut(id);
 894
 895             CPPUNIT_ASSERT_EQUAL( true, res1 );
 896             CPPUNIT_ASSERT_EQUAL( false, res2 );
 897
 898             backend->doOneStep( 1100 );
 899
 900             CPPUNIT_ASSERT_EQUAL( 0, count.value );
 901         } // eo RemoveCallOut1()
 902
 903
 904
 905         void FrozenCall_Thaw()
 906         {
 907             Counter count;
 908
 909             CallOutId id= frozenCall( boost::bind(&Counter::advance, &count), 1 );
 910             backend->doOneStep( 10 );
 911
 912             CPPUNIT_ASSERT_EQUAL( 0, count.value );
 913             id.thaw();
 914
 915             backend->doOneStep( 1100 );
 916
 917             CPPUNIT_ASSERT_EQUAL( 1, count.value );
 918         } // eo FrozenCall_Thaw()
 919
 920
 921
 922         void FrozenCall_Decay()
 923         {
 924             Counter count;
 925
 926             CallOutId id= frozenCall( boost::bind(&Counter::advance, &count), 1 );
 927             backend->doOneStep( 10 );
 928
 929             CPPUNIT_ASSERT_EQUAL( 0, count.value );
 930             CPPUNIT_ASSERT_EQUAL( true, id.active() );
 931             backend->doOneStep( 1100 );
 932
 933             CPPUNIT_ASSERT_EQUAL( 0, count.value );
 934             CPPUNIT_ASSERT_EQUAL( false, id.active() );
 935         } // eo FrozenCall_Decay()
 936
 937
 938
 939         void UnixSockets_ClientServer()
 940         {
 941             std::string path= getCheckFilepath("UDS_CS");
 942
 943             UnixIOSocketHolder server_holder;
 944             UnixServerSocket< TestUnixIOSocket > server_port;
 945             UnixIOSocketPtr server;
 946             TestUnixIOSocket client0;
 947             TestUnixIOSocket client1;
 948
 949             bool res1 = server_port.open(path, 0600);
 950             CPPUNIT_ASSERT_EQUAL( true, res1 );
 951
 952             {
 953                 Stat stat(path,false);
 954                 CPPUNIT_ASSERT( stat.is_socket() );
 955                 CPPUNIT_ASSERT_EQUAL( 0600u, (stat.mode() & 0777));
 956             }
 957
 958             server_port.setNewConnectionCallback(
 959                 boost::bind( &UnixIOSocketHolder::store, &server_holder, _1)
 960             );
 961
 962             // open a first client
 963             bool res2= client0.open(path);
 964             CPPUNIT_ASSERT_EQUAL( true, res2 );
 965
 966             CPPUNIT_ASSERT_EQUAL(0u, server_holder.size() );
 967             backendStep(5,1);
 968             CPPUNIT_ASSERT_EQUAL(1u, server_holder.size() );
 969             CPPUNIT_ASSERT( server_holder.get(0).get() );
 970
 971             client0.sendData("a simple test string.");
 972             backendStep(3,2);
 973
 974             CPPUNIT_ASSERT_EQUAL(
 975                 std::string("a simple test string."),
 976                 server_holder.get(0)->m_received_string
 977             );
 978             server_holder.get(0)->sendData("reply 1");
 979             backendStep(3,2);
 980             CPPUNIT_ASSERT_EQUAL( std::string("reply 1"), client0.m_received_string );
 981
 982             // open a second client
 983             res2= client1.open(path);
 984             CPPUNIT_ASSERT_EQUAL( true, res2 );
 985             backendStep(5,1);
 986             CPPUNIT_ASSERT_EQUAL(2u, server_holder.size() );
 987             CPPUNIT_ASSERT( server_holder.get(1).get() );
 988
 989             server_holder.get(1)->sendData("::reply 2");
 990             backendStep(3,2);
 991             CPPUNIT_ASSERT_EQUAL( std::string("::reply 2"), client1.m_received_string );
 992
 993             client1.sendData("another simple test string. 124");
 994             backendStep(3,2);
 995
 996             CPPUNIT_ASSERT_EQUAL(
 997                 std::string("another simple test string. 124"),
 998                 server_holder.get(1)->m_received_string
 999             );
1000
1001             // close first client
1002             client0.close();
1003             CPPUNIT_ASSERT_EQUAL( false, server_holder.get(0)->eof() );
1004             backendStep(3,2);
1005             CPPUNIT_ASSERT_EQUAL( true, server_holder.get(0)->eof() );
1006             server_holder.get(0)->close();
1007
1008             // close second connection from server side
1009             CPPUNIT_ASSERT_EQUAL( false, client1.eof() );
1010             server_holder.get(1)->close();
1011             backendStep(3,2);
1012             CPPUNIT_ASSERT_EQUAL( true, client1.eof() );
1013             client1.close();
1014         } // eo UnixSockets_ClientServer()
1015
1016
1017         void Dummy()
1018         {
1019             using namespace std;
1020             cout << endl << "Random strings:" << endl;
1021             for (int i=10; i-->0;)
1022             {
1023                 cout << "  " << makeRandomAsciiString(70)<< endl;
1024             }
1025         } // eo Dummy
1026
1027
1028 }; // eo class TestSimpleioBasics
1029
1030
1031 CPPUNIT_TEST_SUITE_REGISTRATION(TestSimpleioBasics);