添加广播MDNS服务

FactoryTestTool/ThirdParty/qmdnsengine-master/tests/TestCache.cpp

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