QComboBox: replace homebrew with QSignalSpy for editTextChanged test

Change-Id: Id4c81ae71d6dc87f9ad7cfb99a89d335162e1f75
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
(cherry picked from qt5/qtbase commit e437051ff51d57bcc6937dc23fe6a77bf9897130)

1 files changed, 12 insertions, 35 deletions

diff --git a/tests/auto/qcombobox/tst_qcombobox.cpp b/tests/auto/qcombobox/tst_qcombobox.cpp
index 0ad1b9520d..b6b4436e9f 100644
--- a/tests/auto/qcombobox/tst_qcombobox.cpp
+++ b/tests/auto/qcombobox/tst_qcombobox.cpp
@@ -159,15 +159,10 @@ private slots:
     void maxVisibleItems();
     void task_QTBUG_10491_currentIndexAndModelColumn();
 
-protected slots:
-    void onEditTextChanged( const QString &newString );
-
 private:
     QComboBox *testWidget;
     QWidget *parent;
     QPushButton* ok;
-    int editTextCount;
-    QString editText;
 };
 
 class MyAbstractItemDelegate : public QAbstractItemDelegate
@@ -402,10 +397,6 @@ void tst_QComboBox::initTestCase()
     testWidget = new QComboBox(parent);
     testWidget->setObjectName("testObject");
     testWidget->setGeometry(0, 0, 100, 100);
-    editTextCount = 0;
-    editText.clear();
-    connect(testWidget, SIGNAL(editTextChanged(const QString&)),
-            this, SLOT(onEditTextChanged(const QString&)));
     parent->show();
 }
 
@@ -1390,23 +1381,19 @@ void tst_QComboBox::editTextChanged()
     testWidget->setEditable(false);
     QCOMPARE(testWidget->isEditable(), false);
 
+    QSignalSpy spy(testWidget, SIGNAL(editTextChanged(QString)));
+
     // no signal should be sent when current is set to the same
     QCOMPARE(testWidget->currentIndex(), 0);
-    editTextCount = 0;
-    editText.clear();
     testWidget->setCurrentIndex(0);
     QCOMPARE(testWidget->currentIndex(), 0);
-    QCOMPARE(editTextCount, 0);
-    QCOMPARE(editText.isEmpty(), true);
+    QCOMPARE(spy.count(), 0);
 
     // no signal should be sent when changing to other index because we are not editable
     QCOMPARE(testWidget->currentIndex(), 0);
-    editTextCount = 0;
-    editText.clear();
     testWidget->setCurrentIndex(1);
     QCOMPARE(testWidget->currentIndex(), 1);
-    QCOMPARE(editTextCount, 0);
-    QCOMPARE(editText.isEmpty(), true);
+    QCOMPARE(spy.count(), 0);
 
     // now set to editable and reset current index
     testWidget->setEditable(true);
@@ -1414,35 +1401,25 @@ void tst_QComboBox::editTextChanged()
     testWidget->setCurrentIndex(0);
 
     // no signal should be sent when current is set to the same
+    spy.clear();
     QCOMPARE(testWidget->currentIndex(), 0);
-    editTextCount = 0;
-    editText.clear();
     testWidget->setCurrentIndex(0);
     QCOMPARE(testWidget->currentIndex(), 0);
-    QCOMPARE(editTextCount, 0);
-    QCOMPARE(editText.isEmpty(), true);
+    QCOMPARE(spy.count(), 0);
 
     // signal should be sent when changing to other index
     QCOMPARE(testWidget->currentIndex(), 0);
-    editTextCount = 0;
-    editText.clear();
     testWidget->setCurrentIndex(1);
     QCOMPARE(testWidget->currentIndex(), 1);
-    QCOMPARE(editTextCount, 1);
-    QCOMPARE(editText, QString("bar"));
+    QCOMPARE(spy.count(), 1);
+    QCOMPARE(qvariant_cast<QString>(spy.at(0).at(0)), QString("bar"));
+
 
     // insert some keys and notice they are all signaled
-    editTextCount = 0;
-    editText.clear();
+    spy.clear();
     QTest::keyClicks(testWidget, "bingo");
-    QCOMPARE(editTextCount, 5);
-    QCOMPARE(editText, QString("barbingo"));
-}
-
-void tst_QComboBox::onEditTextChanged(const QString &text)
-{
-    editTextCount++;
-    editText = text;
+    QCOMPARE(spy.count(), 5);
+    QCOMPARE(qvariant_cast<QString>(spy.at(4).at(0)), QString("barbingo"));
 }
 
 void tst_QComboBox::setModel()