janwas
9542ecdd7e
refs #117 stub_impl_hack: defines a function otherwise provided by main.cpp remove old self_test.h contents (e.g. TEST); superceded by cxxtestgen TS_ASSERT etc. only include self_test from a test (otherwise, cxxtest include dir won't be set) cxxtest won't run tests named only "test"; add more descriptive name FIXES uncovered by self tests lib: infinite loop in log2 lockfree: incorrect params This was SVN commit r3979.
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
#include "lib/self_test.h"
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#include "lib/lib.h"
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#include "lib/res/file/file_cache.h"
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class TestFileCache : public CxxTest::TestSuite
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{
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enum { TEST_ALLOC_TOTAL = 100*1000*1000 };
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public:
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void test_cache_allocator()
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{
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// allocated address -> its size
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typedef std::map<void*, size_t> AllocMap;
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AllocMap allocations;
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// put allocator through its paces by allocating several times
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// its capacity (this ensures memory is reused)
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srand(1);
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size_t total_size_used = 0;
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while(total_size_used < TEST_ALLOC_TOTAL)
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{
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size_t size = rand(1, TEST_ALLOC_TOTAL/16);
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total_size_used += size;
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void* p;
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// until successful alloc:
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for(;;)
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{
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p = file_cache_allocator_alloc(size);
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if(p)
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break;
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// out of room - remove a previous allocation
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// .. choose one at random
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size_t chosen_idx = (size_t)rand(0, (uint)allocations.size());
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AllocMap::iterator it = allocations.begin();
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for(; chosen_idx != 0; chosen_idx--)
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++it;
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file_cache_allocator_free((u8*)it->first, it->second);
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allocations.erase(it);
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}
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// must not already have been allocated
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TS_ASSERT_EQUALS(allocations.find(p), allocations.end());
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allocations[p] = size;
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}
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// reset to virginal state
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// note: even though everything has now been freed, this is
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// necessary since the freelists may be a bit scattered already.
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file_cache_allocator_reset();
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}
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};
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