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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "bucketdatabasetest.h"
#include <vespa/storage/bucketdb/btree_bucket_database.h>
#include <gtest/gtest.h>
#include <gmock/gmock.h>
using namespace ::testing;
namespace storage::distributor {
VESPA_GTEST_INSTANTIATE_TEST_SUITE_P(BTreeDatabase, BucketDatabaseTest,
::testing::Values(std::make_shared<BTreeBucketDatabase>()));
using document::BucketId;
namespace {
BucketCopy BC(uint32_t node_idx, uint32_t state) {
api::BucketInfo info(0x123, state, state);
return BucketCopy(0, node_idx, info);
}
BucketInfo BI(uint32_t node_idx, uint32_t state) {
BucketInfo bi;
bi.addNode(BC(node_idx, state), toVector<uint16_t>(0));
return bi;
}
}
struct BTreeReadGuardTest : Test {
BTreeBucketDatabase _db;
};
TEST_F(BTreeReadGuardTest, guard_does_not_observe_new_entries) {
auto guard = _db.acquire_read_guard();
_db.update(BucketDatabase::Entry(BucketId(16, 16), BI(1, 1234)));
auto entries = guard->find_parents_and_self(BucketId(16, 16));
EXPECT_EQ(entries.size(), 0U);
entries = guard->find_parents_self_and_children(BucketId(16, 16));
EXPECT_EQ(entries.size(), 0U);
}
TEST_F(BTreeReadGuardTest, guard_observes_entries_alive_at_acquire_time) {
BucketId bucket(16, 16);
_db.update(BucketDatabase::Entry(bucket, BI(1, 1234)));
auto guard = _db.acquire_read_guard();
_db.remove(bucket);
auto entries = guard->find_parents_and_self(bucket);
ASSERT_EQ(entries.size(), 1U);
EXPECT_EQ(entries[0].getBucketInfo(), BI(1, 1234));
entries = guard->find_parents_self_and_children(bucket);
ASSERT_EQ(entries.size(), 1U);
EXPECT_EQ(entries[0].getBucketInfo(), BI(1, 1234));
}
}
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