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realm-js/tests/list.cpp

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#include "catch.hpp"
#include "util/test_file.hpp"
#include "util/index_helpers.hpp"
#include "binding_context.hpp"
#include "list.hpp"
#include "object_schema.hpp"
#include "property.hpp"
#include "results.hpp"
#include "schema.hpp"
#include "impl/realm_coordinator.hpp"
#include <realm/commit_log.hpp>
#include <realm/group_shared.hpp>
#include <realm/link_view.hpp>
using namespace realm;
TEST_CASE("list") {
InMemoryTestFile config;
config.automatic_change_notifications = false;
config.cache = false;
config.schema = std::make_unique<Schema>(Schema{
{"origin", "", {
{"array", PropertyTypeArray, "target"}
}},
{"target", "", {
{"value", PropertyTypeInt}
}},
});
auto r = Realm::get_shared_realm(config);
auto& coordinator = *_impl::RealmCoordinator::get_existing_coordinator(config.path);
auto origin = r->read_group()->get_table("class_origin");
auto target = r->read_group()->get_table("class_target");
r->begin_transaction();
target->add_empty_row(10);
for (int i = 0; i < 10; ++i)
target->set_int(0, i, i);
origin->add_empty_row(2);
LinkViewRef lv = origin->get_linklist(0, 0);
for (int i = 0; i < 10; ++i)
lv->add(i);
LinkViewRef lv2 = origin->get_linklist(0, 1);
for (int i = 0; i < 10; ++i)
lv2->add(i);
r->commit_transaction();
SECTION("add_notification_block()") {
CollectionChangeIndices change;
List lst(r, *r->config().schema->find("origin"), lv);
auto write = [&](auto&& f) {
r->begin_transaction();
f();
r->commit_transaction();
advance_and_notify(*r);
};
auto require_change = [&] {
auto token = lst.add_notification_callback([&](CollectionChangeIndices c, std::exception_ptr err) {
change = c;
});
advance_and_notify(*r);
return token;
};
auto require_no_change = [&] {
bool first = true;
auto token = lst.add_notification_callback([&, first](CollectionChangeIndices c, std::exception_ptr err) mutable {
REQUIRE(first);
first = false;
});
advance_and_notify(*r);
return token;
};
SECTION("modifying the list sends a change notifications") {
auto token = require_change();
write([&] { lst.remove(5); });
REQUIRE_INDICES(change.deletions, 5);
}
SECTION("modifying a different list doesn't send a change notification") {
auto token = require_no_change();
write([&] { lv2->remove(5); });
}
SECTION("deleting the list sends a change notification") {
auto token = require_change();
write([&] { origin->move_last_over(0); });
REQUIRE_INDICES(change.deletions, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
}
SECTION("modifying one of the target rows sends a change notification") {
auto token = require_change();
write([&] { lst.get(5).set_int(0, 6); });
REQUIRE_INDICES(change.modifications, 5);
}
SECTION("deleting a target row sends a change notification") {
auto token = require_change();
write([&] { target->move_last_over(5); });
REQUIRE_INDICES(change.deletions, 5);
}
SECTION("adding a row and then modifying the target row does not mark the row as modified") {
auto token = require_change();
write([&] {
lst.add(5);
target->set_int(0, 5, 10);
});
REQUIRE_INDICES(change.insertions, 10);
REQUIRE_INDICES(change.modifications, 5);
}
SECTION("modifying and then moving a row reports move/insert but not modification") {
auto token = require_change();
write([&] {
target->set_int(0, 5, 10);
lst.move(5, 8);
});
REQUIRE_INDICES(change.insertions, 8);
REQUIRE_INDICES(change.deletions, 5);
REQUIRE_MOVES(change, {5, 8});
REQUIRE(change.modifications.empty());
}
SECTION("modifying a row which appears multiple times in a list marks them all as modified") {
r->begin_transaction();
lst.add(5);
r->commit_transaction();
auto token = require_change();
write([&] { target->set_int(0, 5, 10); });
REQUIRE_INDICES(change.modifications, 5, 10);
}
SECTION("deleting a row which appears multiple times in a list marks them all as modified") {
r->begin_transaction();
lst.add(5);
r->commit_transaction();
auto token = require_change();
write([&] { target->move_last_over(5); });
REQUIRE_INDICES(change.deletions, 5, 10);
}
SECTION("clearing the target table sends a change notification") {
auto token = require_change();
write([&] { target->clear(); });
REQUIRE_INDICES(change.deletions, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
}
SECTION("moving a target row does not send a change notification") {
// Remove a row from the LV so that we have one to delete that's not in the list
r->begin_transaction();
lv->remove(2);
r->commit_transaction();
auto token = require_no_change();
write([&] { target->move_last_over(2); });
}
SECTION("multiple LinkViws for the same LinkList can get notifications") {
r->begin_transaction();
target->clear();
target->add_empty_row(5);
r->commit_transaction();
auto get_list = [&] {
auto r = Realm::get_shared_realm(config);
auto lv = r->read_group()->get_table("class_origin")->get_linklist(0, 0);
return List(r, *r->config().schema->find("origin"), lv);
};
auto change_list = [&] {
r->begin_transaction();
if (lv->size()) {
target->set_int(0, lv->size() - 1, lv->size());
}
lv->add(lv->size());
r->commit_transaction();
};
List lists[3];
NotificationToken tokens[3];
CollectionChangeIndices changes[3];
for (int i = 0; i < 3; ++i) {
lists[i] = get_list();
tokens[i] = lists[i].add_notification_callback([i, &changes](CollectionChangeIndices c, std::exception_ptr) {
changes[i] = std::move(c);
});
change_list();
}
// Each of the Lists now has a different source version and state at
// that version, so they should all see different changes despite
// being for the same LinkList
advance_and_notify(*r);
REQUIRE_INDICES(changes[0].insertions, 0, 1, 2);
REQUIRE(changes[0].modifications.empty());
REQUIRE_INDICES(changes[1].insertions, 1, 2);
REQUIRE_INDICES(changes[1].modifications, 0);
REQUIRE_INDICES(changes[2].insertions, 2);
REQUIRE_INDICES(changes[2].modifications, 1);
// After making another change, they should all get the same notification
change_list();
advance_and_notify(*r);
for (int i = 0; i < 3; ++i) {
REQUIRE_INDICES(changes[i].insertions, 3);
REQUIRE_INDICES(changes[i].modifications, 2);
}
}
SECTION("modifications are reported for rows that are moved and then moved back in a second transaction") {
auto token = require_change();
r->begin_transaction();
lv->get(5).set_int(0, 10);
lv->get(1).set_int(0, 10);
lv->move(5, 8);
lv->move(1, 2);
r->commit_transaction();
coordinator.on_change();
write([&]{
lv->move(8, 5);
});
REQUIRE_INDICES(change.deletions, 1);
REQUIRE_INDICES(change.insertions, 2);
REQUIRE_INDICES(change.modifications, 5);
REQUIRE_MOVES(change, {1, 2});
}
}
SECTION("sorted add_notification_block()") {
List lst(r, *r->config().schema->find("origin"), lv);
Results results = lst.sort({{0}, {false}});
int notification_calls = 0;
CollectionChangeIndices change;
auto token = results.add_notification_callback([&](CollectionChangeIndices c, std::exception_ptr err) {
REQUIRE_FALSE(err);
change = c;
++notification_calls;
});
advance_and_notify(*r);
auto write = [&](auto&& f) {
r->begin_transaction();
f();
r->commit_transaction();
advance_and_notify(*r);
};
SECTION("add duplicates") {
write([&] {
lst.add(5);
lst.add(5);
lst.add(5);
});
REQUIRE(notification_calls == 2);
REQUIRE_INDICES(change.insertions, 5, 6, 7);
}
SECTION("change order by modifying target") {
write([&] {
lst.get(5).set_int(0, 15);
});
REQUIRE(notification_calls == 2);
REQUIRE_INDICES(change.deletions, 4);
REQUIRE_INDICES(change.insertions, 0);
}
SECTION("swap") {
write([&] {
lst.swap(1, 2);
});
REQUIRE(notification_calls == 1);
}
SECTION("move") {
write([&] {
lst.move(5, 3);
});
REQUIRE(notification_calls == 1);
}
}
SECTION("filtered add_notification_block()") {
List lst(r, *r->config().schema->find("origin"), lv);
Results results = lst.filter(target->where().less(0, 9));
int notification_calls = 0;
CollectionChangeIndices change;
auto token = results.add_notification_callback([&](CollectionChangeIndices c, std::exception_ptr err) {
REQUIRE_FALSE(err);
change = c;
++notification_calls;
});
advance_and_notify(*r);
auto write = [&](auto&& f) {
r->begin_transaction();
f();
r->commit_transaction();
advance_and_notify(*r);
};
SECTION("add duplicates") {
write([&] {
lst.add(5);
lst.add(5);
lst.add(5);
});
REQUIRE(notification_calls == 2);
REQUIRE_INDICES(change.insertions, 9, 10, 11);
}
SECTION("swap") {
write([&] {
lst.swap(1, 2);
});
REQUIRE(notification_calls == 2);
REQUIRE_INDICES(change.deletions, 2);
REQUIRE_INDICES(change.insertions, 1);
write([&] {
lst.swap(5, 8);
});
REQUIRE(notification_calls == 3);
REQUIRE_INDICES(change.deletions, 5, 8);
REQUIRE_INDICES(change.insertions, 5, 8);
}
SECTION("move") {
write([&] {
lst.move(5, 3);
});
REQUIRE(notification_calls == 2);
REQUIRE_INDICES(change.deletions, 5);
REQUIRE_INDICES(change.insertions, 3);
}
SECTION("move non-matching entry") {
write([&] {
lst.move(9, 3);
});
REQUIRE(notification_calls == 1);
}
}
SECTION("sort()") {
auto objectschema = &*r->config().schema->find("origin");
List list(r, *objectschema, lv);
auto results = list.sort({{0}, {false}});
REQUIRE(&results.get_object_schema() == objectschema);
REQUIRE(results.get_mode() == Results::Mode::LinkView);
REQUIRE(results.size() == 10);
REQUIRE(results.sum(0) == 45);
for (size_t i = 0; i < 10; ++i) {
REQUIRE(results.get(i).get_index() == 9 - i);
}
}
SECTION("filter()") {
auto objectschema = &*r->config().schema->find("origin");
List list(r, *objectschema, lv);
auto results = list.filter(target->where().greater(0, 5));
REQUIRE(&results.get_object_schema() == objectschema);
REQUIRE(results.get_mode() == Results::Mode::Query);
REQUIRE(results.size() == 4);
for (size_t i = 0; i < 4; ++i) {
REQUIRE(results.get(i).get_index() == i + 6);
}
}
}
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