Common/test/atomicptrcache_t.cppunit.cc

0001 #include "cppunit/extensions/HelperMacros.h"
0002 #include "DataFormats/Common/interface/AtomicPtrCache.h"
0003
0004 #include <vector>
0005
0006 class testAtomicPtrCache : public CppUnit::TestFixture {
0007   CPPUNIT_TEST_SUITE(testAtomicPtrCache);
0008   CPPUNIT_TEST(check);
0009   CPPUNIT_TEST_SUITE_END();
0010 public:
0011   void setUp() {}
0012   void tearDown() {}
0013   void check();
0014 };
0015
0016 CPPUNIT_TEST_SUITE_REGISTRATION(testAtomicPtrCache);
0017
0018 typedef std::vector<int> Vec;
0019 void
0020 testAtomicPtrCache::check()
0021 {
0022   using namespace edm;
0023
0024   const Vec values = {1,2,3};
0025
0026   {
0027     AtomicPtrCache<Vec> cache;
0028     CPPUNIT_ASSERT(false == cache.isSet());
0029     CPPUNIT_ASSERT(nullptr == cache.operator->());
0030     CPPUNIT_ASSERT(nullptr == cache.load());
0031
0032     cache.set(std::make_unique<Vec>(values));
0033     CPPUNIT_ASSERT(true == cache.isSet());
0034     CPPUNIT_ASSERT(cache->size() == values.size());
0035     CPPUNIT_ASSERT((*cache).size() == values.size());
0036     CPPUNIT_ASSERT(cache.load()->size() == values.size());
0037
0038     {
0039       //test const functions
0040       const AtomicPtrCache<Vec> & constCache = cache;
0041
0042       CPPUNIT_ASSERT(true == constCache.isSet());
0043       CPPUNIT_ASSERT(constCache->size() == values.size());
0044       CPPUNIT_ASSERT((*constCache).size() == values.size());
0045       CPPUNIT_ASSERT(constCache.load()->size() == values.size());
0046     }
0047
0048     cache.reset();
0049     CPPUNIT_ASSERT(false == cache.isSet());
0050   }
0051
0052   {
0053     AtomicPtrCache<Vec> cache{new Vec{values}};
0054     CPPUNIT_ASSERT(true == cache.isSet());
0055     CPPUNIT_ASSERT(cache->size() == values.size());
0056   }
0057
0058   {
0059     AtomicPtrCache<Vec> cache;
0060     CPPUNIT_ASSERT(false == cache.isSet());
0061
0062     AtomicPtrCache<Vec> cache2{new Vec{values}};
0063
0064     cache = cache2;
0065
0066     CPPUNIT_ASSERT(true == cache.isSet());
0067     CPPUNIT_ASSERT(cache->size() == values.size());
0068     CPPUNIT_ASSERT(true == cache2.isSet());
0069     CPPUNIT_ASSERT(cache2->size() == values.size());
0070     CPPUNIT_ASSERT(cache.load() != cache2.load());
0071   }
0072
0073   {
0074     AtomicPtrCache<Vec> cache2{new Vec{values}};
0075     AtomicPtrCache<Vec> cache{ cache2 };
0076     CPPUNIT_ASSERT(true == cache.isSet());
0077     CPPUNIT_ASSERT(cache->size() == values.size());
0078     CPPUNIT_ASSERT(true == cache2.isSet());
0079     CPPUNIT_ASSERT(cache2->size() == values.size());
0080     CPPUNIT_ASSERT(cache.load() != cache2.load());
0081   }
0082
0083 }