138 lines
3.8 KiB
C++
138 lines
3.8 KiB
C++
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Nathan Osman
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <QObject>
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#include <QSignalSpy>
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#include <QTest>
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#include <qmdnsengine/dns.h>
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#include <qmdnsengine/cache.h>
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#include <qmdnsengine/record.h>
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Q_DECLARE_METATYPE(QMdnsEngine::Record)
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const QByteArray Name = "Test";
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const quint16 Type = QMdnsEngine::TXT;
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class TestCache : public QObject
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{
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Q_OBJECT
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public:
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TestCache() : mCounter(0) {}
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private Q_SLOTS:
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void initTestCase();
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void testExpiry();
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void testRemoval();
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void testCacheFlush();
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private:
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QMdnsEngine::Record createRecord();
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int mCounter;
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};
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void TestCache::initTestCase()
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{
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qRegisterMetaType<QMdnsEngine::Record>("Record");
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}
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void TestCache::testExpiry()
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{
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QMdnsEngine::Cache cache;
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cache.addRecord(createRecord());
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QSignalSpy shouldQuerySpy(&cache, SIGNAL(shouldQuery(Record)));
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QSignalSpy recordExpiredSpy(&cache, SIGNAL(recordExpired(Record)));
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// The record should be in the cache
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QMdnsEngine::Record record;
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QVERIFY(cache.lookupRecord(Name, Type, record));
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// After entering the event loop, the record should be purged when its TTL
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// expires in 1s
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QTRY_VERIFY(!cache.lookupRecord(Name, Type, record));
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// Ensure that the shouldQuery() signal was emitted at least once and the
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// recordExpired() signal was eventually emitted as well
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QVERIFY(shouldQuerySpy.count() > 0);
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QCOMPARE(recordExpiredSpy.count(), 1);
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}
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void TestCache::testRemoval()
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{
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QMdnsEngine::Cache cache;
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QMdnsEngine::Record record = createRecord();
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cache.addRecord(record);
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QSignalSpy recordExpiredSpy(&cache, SIGNAL(recordExpired(Record)));
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// Purge the record from the cache by setting its TTL to 0
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record.setTtl(0);
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cache.addRecord(record);
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// Verify that the record is gone
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QVERIFY(!cache.lookupRecord(Name, Type, record));
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QCOMPARE(recordExpiredSpy.count(), 1);
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}
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void TestCache::testCacheFlush()
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{
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QMdnsEngine::Cache cache;
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for (int i = 0; i < 2; ++i) {
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cache.addRecord(createRecord());
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}
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QList<QMdnsEngine::Record> records;
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QVERIFY(cache.lookupRecords(Name, Type, records));
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QCOMPARE(records.length(), 2);
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// Insert a new record with the cache clear bit set
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QMdnsEngine::Record record = createRecord();
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record.setFlushCache(true);
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cache.addRecord(record);
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// Confirm that only a single record exists
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records.clear();
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QVERIFY(cache.lookupRecords(Name, Type, records));
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QCOMPARE(records.length(), 1);
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}
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QMdnsEngine::Record TestCache::createRecord()
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{
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QMdnsEngine::Record record;
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record.setName(Name);
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record.setType(Type);
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record.setTtl(1);
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record.addAttribute("key", QByteArray::number(mCounter++));
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return record;
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}
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QTEST_MAIN(TestCache)
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#include "TestCache.moc"
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