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#include <gtest/gtest.h>
#include <libaff4.h>
#include <iostream>
class MemoryDataStoreTest: public ::testing::Test {
protected:
MemoryDataStore store;
virtual void SetUp() {
store.Set(URN("hello"), URN("World"), new XSDString("foo"));
};
};
TEST_F(MemoryDataStoreTest, IncompatibleGet) {
RDFBytes result;
// This should fail since the value is the wrong type.
EXPECT_EQ(INCOMPATIBLE_TYPES,
store.Get(URN("hello"), URN("World"), result));
};
TEST_F(MemoryDataStoreTest, StorageTest) {
XSDString result;
EXPECT_EQ(STATUS_OK,
store.Get(URN("hello"), URN("World"), result));
EXPECT_STREQ(result.SerializeToString().c_str(), "foo");
store.Set(URN("hello"), URN("World"), new XSDString("bar"));
// In the current implementation a second Set() overwrites the previous value.
EXPECT_EQ(STATUS_OK,
store.Get(URN("hello"), URN("World"), result));
EXPECT_STREQ(result.SerializeToString().c_str(), "bar");
};
#if defined(HAVE_LIBYAML_CPP)
TEST_F(MemoryDataStoreTest, YamlSerializationTest) {
MemoryDataStore new_store;
unique_ptr<AFF4Stream> output = StringIO::NewStringIO();
store.DumpToYaml(*output);
output->Seek(0, 0);
// Load the new store with the serialized data. For now YAML support is not
// fully implemented.
EXPECT_EQ(NOT_IMPLEMENTED,
new_store.LoadFromYaml(*output));
}
#endif
TEST_F(MemoryDataStoreTest, TurtleSerializationTest) {
MemoryDataStore new_store;
unique_ptr<AFF4Stream> output = StringIO::NewStringIO();
XSDString result;
store.DumpToTurtle(*output, "");
output->Seek(0, 0);
// Load the new store with the serialized data.
EXPECT_EQ(STATUS_OK,
new_store.LoadFromTurtle(*output));
EXPECT_EQ(STATUS_OK,
store.Get(URN("hello"), URN("World"), result));
EXPECT_STREQ(result.SerializeToString().c_str(), "foo");
}
// Add a method to inspect protected internal state.
class AFF4ObjectCacheMock: public AFF4ObjectCache {
public:
AFF4ObjectCacheMock(size_t size): AFF4ObjectCache(size) {};
vector<string> GetKeys() {
vector<string> result;
for (AFF4ObjectCacheEntry *it=lru_list.next; it!=&lru_list; it=it->next) {
result.push_back(it->key);
};
return result;
};
vector<string> GetInUse() {
vector<string> result;
for(auto it: in_use) {
result.push_back(it.first);
};
return result;
};
};
TEST(AFF4ObjectCacheTest, TestLRU) {
AFF4ObjectCacheMock cache(3);
MemoryDataStore resolver;
URN a = URN::NewURNFromFilename("a");
URN b = URN::NewURNFromFilename("b");
URN c = URN::NewURNFromFilename("c");
URN d = URN::NewURNFromFilename("d");
AFF4Object *obj1 = new AFF4Object(&resolver, a);
AFF4Object *obj2 = new AFF4Object(&resolver, b);
AFF4Object *obj3 = new AFF4Object(&resolver, c);
AFF4Object *obj4 = new AFF4Object(&resolver, d);
cache.Put(obj1);
cache.Put(obj2);
cache.Put(obj3);
{
vector<string> result = cache.GetKeys();
EXPECT_EQ(result[0], c.SerializeToString());
EXPECT_EQ(result[1], b.SerializeToString());
EXPECT_EQ(result[2], a.SerializeToString());
};
// This removes the object from the cache and places it in the in_use
// list.
EXPECT_EQ(cache.Get(a), obj1);
{
vector<string> result = cache.GetKeys();
EXPECT_EQ(result.size(), 2);
EXPECT_EQ(result[0], c.SerializeToString());
EXPECT_EQ(result[1], b.SerializeToString());
vector<string> in_use = cache.GetInUse();
EXPECT_EQ(in_use.size(), 1);
EXPECT_EQ(in_use[0], a.SerializeToString());
// Now we return the object. It should now appear in the lru lists.
cache.Return(obj1);
};
{
vector<string> result = cache.GetKeys();
EXPECT_EQ(result.size(), 3);
EXPECT_EQ(result[0], a.SerializeToString());
EXPECT_EQ(result[1], c.SerializeToString());
EXPECT_EQ(result[2], b.SerializeToString());
vector<string> in_use = cache.GetInUse();
EXPECT_EQ(in_use.size(), 0);
}
// Over flow the cache - this should expire the older object.
cache.Put(obj4);
{
vector<string> result = cache.GetKeys();
EXPECT_EQ(result.size(), 3);
EXPECT_EQ(result[0], d.SerializeToString());
EXPECT_EQ(result[1], a.SerializeToString());
EXPECT_EQ(result[2], c.SerializeToString());
};
// b is now expired so not in cache.
EXPECT_EQ(cache.Get(b), (AFF4Object *)NULL);
// Check that remove works
cache.Remove(obj4);
{
EXPECT_EQ(cache.Get(d), (AFF4Object *)NULL);
vector<string> result = cache.GetKeys();
EXPECT_EQ(result.size(), 2);
}
};
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