src/tests/testStatHist.cc

   1 /*
   2  * Copyright (C) 1996-2021 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #include "squid.h"
  10 #include "StatHist.h"
  11 #include "testStatHist.h"
  12 #include "unitTestMain.h"
  13
  14 CPPUNIT_TEST_SUITE_REGISTRATION(testStatHist);
  15
  16 typedef enum {
  17     ZERO, ONE, TWO, THREE, FOUR, FIVE
  18 } number ;
  19
  20 class InspectingStatHist : public StatHist
  21 {
  22 public:
  23     bool operator==(const InspectingStatHist &);
  24     bins_type counter(double v) {
  25         return bins[findBin(v)];
  26     }
  27 };
  28
  29 bool
  30 InspectingStatHist::operator ==(const InspectingStatHist & src)
  31 {
  32     assert(bins != NULL && src.bins != NULL); // TODO: remove after initializing bins at construction time
  33     if (capacity_ != src.capacity_ ||
  34             min_!=src.min_ ||
  35             max_!=src.max_ ||
  36             scale_!=src.scale_ ||
  37             val_in!=src.val_in ||
  38             val_out!=src.val_out)
  39         return false;
  40     return (memcmp(bins,src.bins,capacity_*sizeof(*bins))==0);
  41 }
  42
  43 void
  44 testStatHist::testStatHistBaseEquality()
  45 {
  46     InspectingStatHist raw, test;
  47     raw.enumInit(FIVE);
  48     test.enumInit(FIVE);
  49     CPPUNIT_ASSERT(raw==test);
  50     test.count(ZERO);
  51     CPPUNIT_ASSERT_ASSERTION_FAIL(CPPUNIT_ASSERT(raw==test));
  52 }
  53
  54 void
  55 testStatHist::testStatHistBaseAssignment()
  56 {
  57     InspectingStatHist raw, test;
  58     raw.enumInit(FIVE);
  59     test.enumInit(FIVE);
  60     test.count(ZERO);
  61     CPPUNIT_ASSERT_ASSERTION_FAIL(CPPUNIT_ASSERT(raw==test));
  62     test=raw;
  63     CPPUNIT_ASSERT(raw==test);
  64 }
  65
  66 void
  67 testStatHist::testStatHistLog()
  68 {
  69     const double min=0.0, max=10000.0;
  70     const int capacity=10;
  71     InspectingStatHist raw, test;
  72     raw.logInit(capacity,min,max);
  73     test=raw;
  74     CPPUNIT_ASSERT(test.counter(min)==0);
  75     test.count(min);
  76     CPPUNIT_ASSERT(test.counter(min)==1);
  77     CPPUNIT_ASSERT(test.counter(max)==0);
  78     test.count(max);
  79     CPPUNIT_ASSERT(test.counter(max)==1);
  80     test=raw;
  81     test.count(max);
  82     //CPPUNIT_ASSERT(test.val(capacity-1)==1); // XXX: val() returns a density
  83 }
  84
  85 void
  86 testStatHist::testStatHistSum()
  87 {
  88     InspectingStatHist s1, s2;
  89     s1.logInit(30,1.0,100.0);
  90     s2.logInit(30,1.0,100.0);
  91     s1.count(3);
  92     s2.count(30);
  93     InspectingStatHist ts1, ts2;
  94     ts1=s1;
  95     ts1+=s2;
  96     ts2=s2;
  97     ts2+=s1;
  98     CPPUNIT_ASSERT(ts1 == ts2);
  99     InspectingStatHist ts3;
 100     ts3.logInit(30,1.0,100.0);
 101     ts3.count(3);
 102     ts3.count(30);
 103     CPPUNIT_ASSERT(ts3 == ts1);
 104
 105 }
 106