Add QHostInfo::lookupHost overload with modern connect syntax

Task-number: QTBUG-56424
Change-Id: I49053ac2859e6c6c07e4a704b8b5f0d6a2d0b8a4
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 72 insertions, 0 deletions

diff --git a/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp b/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
index f6d9b71aa2..41ed7d2b93 100644
--- a/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
+++ b/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
@@ -93,6 +93,10 @@ private slots:
     void lookupIPv4();
     void lookupIPv6_data();
     void lookupIPv6();
+    void lookupConnectToFunctionPointer_data();
+    void lookupConnectToFunctionPointer();
+    void lookupConnectToLambda_data();
+    void lookupConnectToLambda();
     void reverseLookup_data();
     void reverseLookup();
 
@@ -307,6 +311,74 @@ void tst_QHostInfo::lookupIPv6()
     QCOMPARE(tmp.join(' ').toLower(), expected.join(' ').toLower());
 }
 
+void tst_QHostInfo::lookupConnectToFunctionPointer_data()
+{
+    lookupIPv4_data();
+}
+
+void tst_QHostInfo::lookupConnectToFunctionPointer()
+{
+    QFETCH(QString, hostname);
+    QFETCH(int, err);
+    QFETCH(QString, addresses);
+
+    lookupDone = false;
+    QHostInfo::lookupHost(hostname, this, &tst_QHostInfo::resultsReady);
+
+    QTestEventLoop::instance().enterLoop(10);
+    QVERIFY(!QTestEventLoop::instance().timeout());
+    QVERIFY(lookupDone);
+
+    if (int(lookupResults.error()) != int(err))
+        qWarning() << hostname << "=>" << lookupResults.errorString();
+    QCOMPARE(int(lookupResults.error()), int(err));
+
+    QStringList tmp;
+    for (const auto &result : lookupResults.addresses())
+        tmp.append(result.toString());
+    tmp.sort();
+
+    QStringList expected = addresses.split(' ');
+    expected.sort();
+
+    QCOMPARE(tmp.join(' '), expected.join(' '));
+}
+
+void tst_QHostInfo::lookupConnectToLambda_data()
+{
+    lookupIPv4_data();
+}
+
+void tst_QHostInfo::lookupConnectToLambda()
+{
+    QFETCH(QString, hostname);
+    QFETCH(int, err);
+    QFETCH(QString, addresses);
+
+    lookupDone = false;
+    QHostInfo::lookupHost(hostname, [=](const QHostInfo &hostInfo) {
+        resultsReady(hostInfo);
+    });
+
+    QTestEventLoop::instance().enterLoop(10);
+    QVERIFY(!QTestEventLoop::instance().timeout());
+    QVERIFY(lookupDone);
+
+    if (int(lookupResults.error()) != int(err))
+        qWarning() << hostname << "=>" << lookupResults.errorString();
+    QCOMPARE(int(lookupResults.error()), int(err));
+
+    QStringList tmp;
+    for (int i = 0; i < lookupResults.addresses().count(); ++i)
+        tmp.append(lookupResults.addresses().at(i).toString());
+    tmp.sort();
+
+    QStringList expected = addresses.split(' ');
+    expected.sort();
+
+    QCOMPARE(tmp.join(' '), expected.join(' '));
+}
+
 void tst_QHostInfo::reverseLookup_data()
 {
     QTest::addColumn<QString>("address");