Files
MapLibreParticleLab/test/util/lru_cache.test.cpp

39 lines
775 B
C++

#include <mbgl/util/lru_cache.hpp>
#include <gtest/gtest.h>
#include <stdexcept>
using namespace mbgl;
TEST(LRU, LRU) {
LRU<int> lru;
EXPECT_TRUE(lru.empty());
lru.touch(1);
lru.touch(2);
lru.touch(3);
EXPECT_FALSE(lru.empty());
EXPECT_EQ(lru.size(), 3);
lru.remove(2);
lru.remove(77);
EXPECT_EQ(lru.evict(), 1);
EXPECT_FALSE(lru.empty());
EXPECT_EQ(lru.size(), 1);
lru.touch(4);
EXPECT_EQ(lru.evict(), 3);
EXPECT_FALSE(lru.empty());
EXPECT_EQ(lru.size(), 1);
EXPECT_FALSE(lru.isHit(3));
EXPECT_FALSE(lru.isHit(33));
EXPECT_TRUE(lru.isHit(4));
EXPECT_EQ(lru.evict(), 4);
EXPECT_TRUE(lru.empty());
EXPECT_FALSE(lru.isHit(4));
EXPECT_THROW(lru.evict(), std::runtime_error);
}