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//===--- MultiMapCacheTest.cpp --------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "swift/Basic/MultiMapCache.h"
#include "swift/Basic/Range.h"
#include "gtest/gtest.h"
#include <random>
using namespace swift;
TEST(MultiMapCache, powersTest) {
std::function<bool(unsigned, std::vector<unsigned> &)> cacheCompute =
[&](unsigned key, std::vector<unsigned> &outArray) {
outArray.push_back(key);
outArray.push_back(key * key);
outArray.push_back(key * key * key);
return true;
};
MultiMapCache<unsigned, unsigned> cache(cacheCompute);
EXPECT_TRUE(cache.empty());
EXPECT_EQ(cache.size(), 0u);
for (unsigned index : range(1, 256)) {
auto array = *cache.get(index);
for (unsigned power : array) {
EXPECT_EQ(power % index, 0u);
}
}
EXPECT_FALSE(cache.empty());
EXPECT_EQ(cache.size(), 255u);
for (unsigned index : range(1, 256)) {
auto array = *cache.get(index);
for (unsigned power : array) {
EXPECT_EQ(power % index, 0u);
}
}
EXPECT_FALSE(cache.empty());
EXPECT_EQ(cache.size(), 255u);
cache.clear();
EXPECT_TRUE(cache.empty());
EXPECT_EQ(cache.size(), 0u);
}
TEST(MultiMapCache, smallTest) {
std::function<bool(unsigned, SmallVectorImpl<unsigned> &)> cacheCompute =
[&](unsigned key, SmallVectorImpl<unsigned> &outArray) {
outArray.push_back(key);
outArray.push_back(key * key);
outArray.push_back(key * key * key);
return true;
};
SmallMultiMapCache<unsigned, unsigned> cache(cacheCompute);
EXPECT_TRUE(cache.empty());
EXPECT_EQ(cache.size(), 0u);
for (unsigned index : range(1, 256)) {
auto array = *cache.get(index);
for (unsigned power : array) {
EXPECT_EQ(power % index, 0u);
}
}
EXPECT_FALSE(cache.empty());
EXPECT_EQ(cache.size(), 255u);
for (unsigned index : range(1, 256)) {
auto array = *cache.get(index);
for (unsigned power : array) {
EXPECT_EQ(power % index, 0u);
}
}
EXPECT_FALSE(cache.empty());
EXPECT_EQ(cache.size(), 255u);
cache.clear();
EXPECT_TRUE(cache.empty());
EXPECT_EQ(cache.size(), 0u);
}
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