mirror of https://gitee.com/bigwinds/arangodb
119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief test suite for arangodb::cache::Metadata
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2017 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Daniel H. Larkin
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/// @author Copyright 2017, ArangoDB GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "Cache/Metadata.h"
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#include "Basics/Common.h"
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#include "Cache/PlainCache.h"
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#include "Cache/Table.h"
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#include "catch.hpp"
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#include <stdint.h>
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#include <memory>
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using namespace arangodb::cache;
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TEST_CASE("cache::Metadata", "[cache]") {
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SECTION("test basic constructor") {
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uint64_t usageLimit = 1024;
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uint64_t fixed = 128;
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uint64_t table = Table::allocationSize(Table::minLogSize);
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uint64_t max = UINT64_MAX;
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Metadata metadata(usageLimit, fixed, table, max);
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REQUIRE(metadata.fixedSize == fixed);
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REQUIRE(metadata.tableSize == table);
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REQUIRE(metadata.maxSize == max);
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REQUIRE(metadata.allocatedSize > (usageLimit + fixed + table));
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REQUIRE(metadata.deservedSize == metadata.allocatedSize);
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REQUIRE(metadata.usage == 0);
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REQUIRE(metadata.softUsageLimit == usageLimit);
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REQUIRE(metadata.hardUsageLimit == usageLimit);
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}
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SECTION("verify usage limits are adjusted and enforced correctly") {
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uint64_t overhead = 80;
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Metadata metadata(1024, 0, 0, 2048 + overhead);
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metadata.writeLock();
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REQUIRE(metadata.adjustUsageIfAllowed(512));
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REQUIRE(metadata.adjustUsageIfAllowed(512));
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REQUIRE(!metadata.adjustUsageIfAllowed(512));
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REQUIRE(!metadata.adjustLimits(2048, 2048));
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REQUIRE(metadata.allocatedSize == 1024 + overhead);
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REQUIRE(metadata.adjustDeserved(2048 + overhead));
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REQUIRE(metadata.adjustLimits(2048, 2048));
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REQUIRE(metadata.allocatedSize == 2048 + overhead);
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REQUIRE(metadata.adjustUsageIfAllowed(1024));
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REQUIRE(metadata.adjustLimits(1024, 2048));
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REQUIRE(metadata.allocatedSize == 2048 + overhead);
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REQUIRE(!metadata.adjustUsageIfAllowed(512));
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REQUIRE(metadata.adjustUsageIfAllowed(-512));
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REQUIRE(metadata.adjustUsageIfAllowed(512));
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REQUIRE(metadata.adjustUsageIfAllowed(-1024));
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REQUIRE(!metadata.adjustUsageIfAllowed(512));
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REQUIRE(metadata.adjustLimits(1024, 1024));
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REQUIRE(metadata.allocatedSize == 1024 + overhead);
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REQUIRE(!metadata.adjustLimits(512, 512));
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REQUIRE(!metadata.adjustLimits(2049, 2049));
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REQUIRE(metadata.allocatedSize == 1024 + overhead);
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metadata.writeUnlock();
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}
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SECTION("verify table methods work correctly") {
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uint64_t overhead = 80;
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Metadata metadata(1024, 0, 512, 2048 + overhead);
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metadata.writeLock();
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REQUIRE(!metadata.migrationAllowed(1024));
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REQUIRE(2048 + overhead == metadata.adjustDeserved(2048 + overhead));
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REQUIRE(metadata.migrationAllowed(1024));
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metadata.changeTable(1024);
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REQUIRE(metadata.tableSize == 1024);
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REQUIRE(metadata.allocatedSize == 2048 + overhead);
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REQUIRE(!metadata.migrationAllowed(1025));
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REQUIRE(metadata.migrationAllowed(512));
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metadata.changeTable(512);
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REQUIRE(metadata.tableSize == 512);
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REQUIRE(metadata.allocatedSize == 1536 + overhead);
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metadata.writeUnlock();
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}
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}
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