Fix delayed password masking mid-string.

Unmask the last character typed, not the last character in the string.

Change-Id: I9c70d2347bf878c18ab0a7f4ea76f755ca19a85c
Task-number: QTBUG-17003
Reviewed-by: Alan Alpert

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/auto/qlineedit/tst_qlineedit.cpp b/tests/auto/qlineedit/tst_qlineedit.cpp
index 1f33458f28..32763759ed 100644
--- a/tests/auto/qlineedit/tst_qlineedit.cpp
+++ b/tests/auto/qlineedit/tst_qlineedit.cpp
@@ -1764,6 +1764,13 @@ void tst_QLineEdit::passwordEchoDelay()
     QApplication::sendEvent(testWidget, &ev);
     QCOMPARE(testWidget->displayText(), QString(7, fillChar) + QLatin1Char('7'));
 
+    testWidget->setCursorPosition(3);
+    QCOMPARE(testWidget->displayText(), QString(7, fillChar) + QLatin1Char('7'));
+    QTest::keyPress(testWidget, 'a');
+    QCOMPARE(testWidget->displayText(), QString(3, fillChar) + QLatin1Char('a') + QString(5, fillChar));
+    QTest::keyPress(testWidget, Qt::Key_Backspace);
+    QCOMPARE(testWidget->displayText(), QString(8, fillChar));
+
     // restore clean state
     testWidget->setEchoMode(QLineEdit::Normal);
 }