Add a test for some copy semantics to QPalette

It isn't a thorough check of all the mutable methods for detaching, but a start.

Change-Id: I523fd30d3459186654e12fd25c384ed990ab7a00
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp b/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
index 662e35dfaf..c3c1fc6ea6 100644
--- a/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
+++ b/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
@@ -50,6 +50,7 @@ class tst_QPalette : public QObject
 private Q_SLOTS:
     void roleValues_data();
     void roleValues();
+    void copySemantics();
     void moveSemantics();
 };
 
@@ -90,6 +91,27 @@ void tst_QPalette::roleValues()
     QCOMPARE(role, value);
 }
 
+void tst_QPalette::copySemantics()
+{
+    QPalette src(Qt::red), dst;
+    const QPalette control = src; // copy construction
+    QVERIFY(src != dst);
+    QVERIFY(!src.isCopyOf(dst));
+    QCOMPARE(src, control);
+    QVERIFY(src.isCopyOf(control));
+    dst = src; // copy assignment
+    QCOMPARE(dst, src);
+    QCOMPARE(dst, control);
+    QVERIFY(dst.isCopyOf(src));
+
+    dst = QPalette(Qt::green);
+    QVERIFY(dst != src);
+    QVERIFY(dst != control);
+    QCOMPARE(src, control);
+    QVERIFY(!dst.isCopyOf(src));
+    QVERIFY(src.isCopyOf(control));
+}
+
 void tst_QPalette::moveSemantics()
 {
 #ifdef Q_COMPILER_RVALUE_REFS