mirror of
https://github.com/ClickHouse/ClickHouse.git
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64 lines
1.2 KiB
C++
64 lines
1.2 KiB
C++
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#include <DB/Common/LRUCache.h>
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#include <iostream>
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#include <string>
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using namespace DB;
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struct Weight
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{
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size_t operator()(const std::string & s) const
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{
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return s.size();
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}
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};
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void fail()
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{
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std::cout << "failed" << std::endl;
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exit(1);
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}
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typedef LRUCache<std::string, std::string, std::hash<std::string>, Weight> Cache;
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typedef Cache::MappedPtr MappedPtr;
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MappedPtr ptr(const std::string & s)
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{
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return MappedPtr(new std::string(s));
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}
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int main()
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{
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try
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{
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Cache cache(10);
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if (cache.get("asd")) fail();
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cache.set("asd", ptr("qwe"));
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if (*cache.get("asd") != "qwe") fail();
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cache.set("zxcv", ptr("12345"));
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cache.set("01234567891234567", ptr("--"));
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if (*cache.get("zxcv") != "12345") fail();
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if (*cache.get("asd") != "qwe") fail();
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if (*cache.get("01234567891234567") != "--") fail();
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if (cache.get("123x")) fail();
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cache.set("321x", ptr("+"));
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if (cache.get("zxcv")) fail();
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if (*cache.get("asd") != "qwe") fail();
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if (*cache.get("01234567891234567") != "--") fail();
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if (cache.get("123x")) fail();
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if (*cache.get("321x") != "+") fail();
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if (cache.weight() != 6) fail();
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if (cache.count() != 3) fail();
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std::cout << "passed" << std::endl;
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}
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catch (...)
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{
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fail();
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}
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return 0;
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}
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