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#include "catch.hpp"
#include <osmium/builder/attr.hpp>
#include <osmium/storage/item_stash.hpp>
#include <sstream>
#include <string>
#include <vector>
namespace {
osmium::memory::Buffer generate_test_data() {
using namespace osmium::builder::attr; // NOLINT(google-build-using-namespace)
osmium::memory::Buffer buffer{1024UL * 1024UL, osmium::memory::Buffer::auto_grow::yes};
const osmium::object_id_type num_nodes = 100;
const osmium::object_id_type num_ways = 50;
const osmium::object_id_type num_relations = 30;
osmium::object_id_type id = 1;
for (; id <= num_nodes; ++id) {
osmium::builder::add_node(buffer, _id(id));
}
for (; id <= num_nodes + num_ways; ++id) {
osmium::builder::add_way(buffer, _id(id));
}
for (; id <= num_nodes + num_ways + num_relations; ++id) {
osmium::builder::add_relation(buffer, _id(id));
}
return buffer;
}
} // anonymous namespace
TEST_CASE("Item stash handle") {
const auto handle = osmium::ItemStash::handle_type{};
REQUIRE_FALSE(handle.valid());
std::stringstream ss;
ss << handle;
REQUIRE(ss.str() == "-");
}
TEST_CASE("Item stash") {
const auto buffer = generate_test_data();
osmium::ItemStash stash;
REQUIRE(stash.size() == 0);
REQUIRE(stash.count_removed() == 0);
std::vector<osmium::ItemStash::handle_type> handles;
for (const auto& item : buffer) {
auto handle = stash.add_item(item);
handles.push_back(handle);
}
REQUIRE(stash.size() == 180);
REQUIRE(stash.count_removed() == 0);
REQUIRE(stash.used_memory() > 1024UL * 1024UL);
osmium::object_id_type id = 1;
for (auto& handle : handles) { // must be reference because we will change it!
REQUIRE(handle.valid());
const auto& item = stash.get_item(handle);
const bool correct_type = item.type() == osmium::item_type::node ||
item.type() == osmium::item_type::way ||
item.type() == osmium::item_type::relation;
REQUIRE(correct_type);
const auto& obj = static_cast<const osmium::OSMObject&>(item);
REQUIRE(obj.id() == id);
std::stringstream ss;
ss << handle;
REQUIRE(ss.str() == std::to_string(id));
if (obj.id() % 3 == 0) {
stash.remove_item(handle);
handle = osmium::ItemStash::handle_type{};
}
++id;
}
REQUIRE(stash.size() == 120);
REQUIRE(stash.count_removed() == 60);
id = 1;
int count_valid = 0;
int count_invalid = 0;
for (auto handle : handles) {
if (handle.valid()) {
++count_valid;
const auto& item = stash.get_item(handle);
const bool correct_type = item.type() == osmium::item_type::node ||
item.type() == osmium::item_type::way ||
item.type() == osmium::item_type::relation;
REQUIRE(correct_type);
const auto& obj = static_cast<const osmium::OSMObject&>(item);
REQUIRE(obj.id() == id);
} else {
++count_invalid;
}
++id;
}
REQUIRE(count_valid == 120);
REQUIRE(count_invalid == 60);
stash.garbage_collect();
REQUIRE(stash.size() == 120);
REQUIRE(stash.count_removed() == 0);
id = 1;
for (auto handle : handles) {
if (handle.valid()) {
const auto& item = stash.get_item(handle);
const bool correct_type = item.type() == osmium::item_type::node ||
item.type() == osmium::item_type::way ||
item.type() == osmium::item_type::relation;
REQUIRE(correct_type);
const auto& obj = static_cast<const osmium::OSMObject&>(item);
REQUIRE(obj.id() == id);
}
++id;
}
stash.clear();
REQUIRE(stash.size() == 0);
REQUIRE(stash.count_removed() == 0);
}
TEST_CASE("Fill item stash until it garbage collects") {
const auto buffer = generate_test_data();
osmium::ItemStash stash;
REQUIRE(stash.size() == 0);
REQUIRE(stash.count_removed() == 0);
const auto& node = buffer.get<osmium::Node>(0);
std::vector<osmium::ItemStash::handle_type> handles;
const std::size_t num_items = 6UL * 1000UL * 1000UL;
for (std::size_t i = 0; i < num_items; ++i) {
auto handle = stash.add_item(node);
handles.push_back(handle);
}
REQUIRE(stash.size() == num_items);
REQUIRE(stash.count_removed() == 0);
for (std::size_t i = 0; i < num_items; ++i) {
if (i % 10 != 0) {
stash.remove_item(handles[i]);
}
}
REQUIRE(stash.size() == num_items / 10);
REQUIRE(stash.count_removed() == num_items / 10 * 9);
// trigger compaction
stash.add_item(node);
REQUIRE(stash.size() == (num_items / 10) + 1);
REQUIRE(stash.count_removed() == 0);
}
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