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#include "storage.hpp"
#include "../fixtures/fixture_log_observer.hpp"
#include "sqlite_cache_impl.hpp"
#include <mbgl/storage/resource.hpp>
#include <mbgl/storage/response.hpp>
#include <mbgl/util/io.hpp>
#include <sqlite3.h>
TEST_F(Storage, DatabaseDoesNotExist) {
using namespace mbgl;
Log::setObserver(std::make_unique<FixtureLogObserver>());
SQLiteCache::Impl cache("test/fixtures/404/cache.db");
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
EXPECT_EQ(nullptr, res.get());
});
auto observer = Log::removeObserver();
EXPECT_EQ(1ul, dynamic_cast<FixtureLogObserver*>(observer.get())->count({ EventSeverity::Error, Event::Database, 14, "unable to open database file" }));
}
void createDir(const char* name) {
const int ret = mkdir(name, 0755);
if (ret == -1) {
ASSERT_EQ(EEXIST, errno);
} else {
ASSERT_EQ(0, ret);
}
}
void deleteFile(const char* name) {
const int ret = unlink(name);
if (ret == -1) {
ASSERT_EQ(ENOENT, errno);
} else {
ASSERT_EQ(0, ret);
}
}
void writeFile(const char* name, const std::string& data) {
mbgl::util::write_file(name, data);
}
TEST_F(Storage, DatabaseCreate) {
using namespace mbgl;
createDir("test/fixtures/database");
deleteFile("test/fixtures/database/cache.db");
Log::setObserver(std::make_unique<FixtureLogObserver>());
SQLiteCache::Impl cache("test/fixtures/database/cache.db");
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
EXPECT_EQ(nullptr, res.get());
});
Log::removeObserver();
}
TEST_F(Storage, DatabaseVersion) {
using namespace mbgl;
createDir("test/fixtures/database");
deleteFile("test/fixtures/database/cache.db");
std::string path("test/fixtures/database/cache.db");
Log::setObserver(std::make_unique<FixtureLogObserver>());
{
SQLiteCache::Impl cache(path);
cache.put({ Resource::Unknown, "mapbox://test" }, Response());
}
sqlite3* db;
sqlite3_open_v2(path.c_str(), &db, SQLITE_OPEN_READWRITE, nullptr);
sqlite3_exec(db, "PRAGMA user_version = 999999", nullptr, nullptr, nullptr);
sqlite3_close_v2(db);
// Changing the version will force the database to get recreated
// thus removing every pre-existing cache entry.
{
SQLiteCache::Impl cache(path);
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
EXPECT_EQ(nullptr, res.get());
});
}
Log::removeObserver();
}
class FileLock {
public:
FileLock(const std::string& path) {
const int err = sqlite3_open_v2(path.c_str(), &db, SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE, nullptr);
if (err != SQLITE_OK) {
throw std::runtime_error("Could not open db");
}
lock();
}
void lock() {
assert(!locked);
const int err = sqlite3_exec(db, "begin exclusive transaction", nullptr, nullptr, nullptr);
if (err != SQLITE_OK) {
throw std::runtime_error("Could not lock db");
}
locked = true;
}
void unlock() {
assert(locked);
const int err = sqlite3_exec(db, "commit", nullptr, nullptr, nullptr);
if (err != SQLITE_OK) {
throw std::runtime_error("Could not unlock db");
}
locked = false;
}
~FileLock() {
if (locked) {
unlock();
}
}
private:
sqlite3* db;
bool locked = false;
};
TEST_F(Storage, DatabaseLockedRead) {
using namespace mbgl;
// Create a locked file.
createDir("test/fixtures/database");
deleteFile("test/fixtures/database/locked.db");
FileLock guard("test/fixtures/database/locked.db");
SQLiteCache::Impl cache("test/fixtures/database/locked.db");
{
// First request should fail.
Log::setObserver(std::make_unique<FixtureLogObserver>());
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
EXPECT_EQ(nullptr, res.get());
});
// Make sure that we got a few "database locked" errors
auto observer = Log::removeObserver();
auto flo = dynamic_cast<FixtureLogObserver*>(observer.get());
EXPECT_EQ(4ul, flo->count({ EventSeverity::Error, Event::Database, 5, "database is locked" }));
}
// Then, unlock the file and try again.
guard.unlock();
{
// First, try getting a file (the cache value should not exist).
Log::setObserver(std::make_unique<FixtureLogObserver>());
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
EXPECT_EQ(nullptr, res.get());
});
// Make sure that we got a no errors
Log::removeObserver();
}
}
TEST_F(Storage, DatabaseLockedWrite) {
using namespace mbgl;
// Create a locked file.
createDir("test/fixtures/database");
deleteFile("test/fixtures/database/locked.db");
FileLock guard("test/fixtures/database/locked.db");
SQLiteCache::Impl cache("test/fixtures/database/locked.db");
{
// Adds a file (which should fail).
Log::setObserver(std::make_unique<FixtureLogObserver>());
cache.put({ Resource::Unknown, "mapbox://test" }, Response());
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
EXPECT_EQ(nullptr, res.get());
});
auto observer = Log::removeObserver();
auto flo = dynamic_cast<FixtureLogObserver*>(observer.get());
EXPECT_EQ(8ul, flo->count({ EventSeverity::Error, Event::Database, 5, "database is locked" }));
}
// Then, unlock the file and try again.
guard.unlock();
{
// Then, set a file and obtain it again.
Log::setObserver(std::make_unique<FixtureLogObserver>());
Response response;
response.data = std::make_shared<std::string>("Demo");
cache.put({ Resource::Unknown, "mapbox://test" }, response);
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
ASSERT_NE(nullptr, res.get());
ASSERT_TRUE(res->data.get());
EXPECT_EQ("Demo", *res->data);
});
// Make sure that we got a no errors
Log::removeObserver();
}
}
TEST_F(Storage, DatabaseLockedRefresh) {
using namespace mbgl;
// Create a locked file.
createDir("test/fixtures/database");
deleteFile("test/fixtures/database/locked.db");
SQLiteCache::Impl cache("test/fixtures/database/locked.db");
// Then, lock the file and try again.
FileLock guard("test/fixtures/database/locked.db");
{
// Adds a file.
Log::setObserver(std::make_unique<FixtureLogObserver>());
Response response;
response.data = std::make_shared<std::string>("Demo");
cache.put({ Resource::Unknown, "mapbox://test" }, response);
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
EXPECT_EQ(nullptr, res.get());
});
auto observer = Log::removeObserver();
auto flo = dynamic_cast<FixtureLogObserver*>(observer.get());
EXPECT_EQ(8ul, flo->count({ EventSeverity::Error, Event::Database, 5, "database is locked" }));
}
{
// Then, try to refresh it.
Log::setObserver(std::make_unique<FixtureLogObserver>());
cache.refresh({ Resource::Unknown, "mapbox://test" }, {});
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
EXPECT_EQ(nullptr, res.get());
});
// Make sure that we got the right errors.
auto observer = Log::removeObserver();
auto flo = dynamic_cast<FixtureLogObserver*>(observer.get());
EXPECT_EQ(8ul, flo->count({ EventSeverity::Error, Event::Database, 5, "database is locked" }));
}
}
TEST_F(Storage, DatabaseDeleted) {
using namespace mbgl;
// Create a locked file.
createDir("test/fixtures/database");
deleteFile("test/fixtures/database/locked.db");
SQLiteCache::Impl cache("test/fixtures/database/locked.db");
{
// Adds a file.
Log::setObserver(std::make_unique<FixtureLogObserver>());
Response response;
response.data = std::make_shared<std::string>("Demo");
cache.put({ Resource::Unknown, "mapbox://test" }, response);
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
ASSERT_NE(nullptr, res.get());
ASSERT_TRUE(res->data.get());
EXPECT_EQ("Demo", *res->data);
});
Log::removeObserver();
}
deleteFile("test/fixtures/database/locked.db");
{
// Adds a file.
Log::setObserver(std::make_unique<FixtureLogObserver>());
Response response;
response.data = std::make_shared<std::string>("Demo");
cache.put({ Resource::Unknown, "mapbox://test" }, response);
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
ASSERT_NE(nullptr, res.get());
ASSERT_TRUE(res->data.get());
EXPECT_EQ("Demo", *res->data);
});
auto observer = Log::removeObserver();
auto flo = dynamic_cast<FixtureLogObserver*>(observer.get());
EXPECT_EQ(1ul, flo->count({ EventSeverity::Error, Event::Database, 8, "attempt to write a readonly database" }));
}
}
TEST_F(Storage, DatabaseInvalid) {
using namespace mbgl;
// Create a locked file.
createDir("test/fixtures/database");
deleteFile("test/fixtures/database/invalid.db");
writeFile("test/fixtures/database/invalid.db", "this is an invalid file");
SQLiteCache::Impl cache("test/fixtures/database/invalid.db");
{
// Adds a file.
Log::setObserver(std::make_unique<FixtureLogObserver>());
Response response;
response.data = std::make_shared<std::string>("Demo");
cache.put({ Resource::Unknown, "mapbox://test" }, response);
cache.get({ Resource::Unknown, "mapbox://test" }, [] (std::unique_ptr<Response> res) {
ASSERT_NE(nullptr, res.get());
ASSERT_TRUE(res->data.get());
EXPECT_EQ("Demo", *res->data);
});
auto observer = Log::removeObserver();
auto flo = dynamic_cast<FixtureLogObserver*>(observer.get());
EXPECT_EQ(1ul, flo->count({ EventSeverity::Warning, Event::Database, -1, "Trashing invalid database" }));
}
}
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