Add QDataStream operators to QMargins, so it can be streamed

 * QDataStream format documented
 * Added Unit test for QDataStream operators

 * Updated Unit test

Change-Id: Idbcfcb0b927e6369e8d31b57693c7aa0d1a154e7
Reviewed-by: Olivier Goffart <ogoffart@kde.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/auto/corelib/tools/qmargins/tst_qmargins.cpp b/tests/auto/corelib/tools/qmargins/tst_qmargins.cpp
index c7632d125a..cb0dd2d67d 100644
--- a/tests/auto/corelib/tools/qmargins/tst_qmargins.cpp
+++ b/tests/auto/corelib/tools/qmargins/tst_qmargins.cpp
@@ -61,6 +61,7 @@ public slots:
     void cleanup();
 private slots:
     void getSetCheck();
+    void dataStreamCheck();
 };
 
 // Testing get/set functions
@@ -86,6 +87,31 @@ void tst_QMargins::getSetCheck()
     QCOMPARE(margins, QMargins(5, 0, 5, 0));
 } 
 
+// Testing QDataStream operators
+void tst_QMargins::dataStreamCheck()
+{
+    QByteArray buffer;
+
+    // stream out
+    {
+        QMargins marginsOut(0,INT_MIN,INT_MAX,6852);
+        QDataStream streamOut(&buffer, QIODevice::WriteOnly);
+        streamOut << marginsOut;
+    }
+
+    // stream in & compare
+    {
+        QMargins marginsIn;
+        QDataStream streamIn(&buffer, QIODevice::ReadOnly);
+        streamIn >> marginsIn;
+
+        QCOMPARE(marginsIn.left(), 0);
+        QCOMPARE(marginsIn.top(), INT_MIN);
+        QCOMPARE(marginsIn.right(), INT_MAX);
+        QCOMPARE(marginsIn.bottom(), 6852);
+    }
+}
+
 tst_QMargins::tst_QMargins()
 {
 }