diff options
Diffstat (limited to 'tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp')
| -rw-r--r-- | tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp b/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp index 831612b910..24aa755ad8 100644 --- a/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp +++ b/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp @@ -153,6 +153,7 @@ private slots: #ifndef QT_NO_CLIPBOARD void updateCursorPositionAfterEdit(); #endif + void appendTextWhenInvisible(); private: void createSelection(); @@ -1805,5 +1806,36 @@ void tst_QPlainTextEdit::updateCursorPositionAfterEdit() } #endif +void tst_QPlainTextEdit::appendTextWhenInvisible() +{ + QWidget window; + window.resize(640, 480); + + QPlainTextEdit *plainTextEdit = new QPlainTextEdit(&window); + plainTextEdit->resize(320, 240); + + window.show(); + QVERIFY(QTest::qWaitForWindowActive(&window)); + + // this should be long enough to let vertical scroll bar show up + const QString baseText("text\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\ntext"); + const QString textToAppend("aaa"); + + plainTextEdit->setPlainText(baseText + "\n" + textToAppend); + const auto maxAfterSet = plainTextEdit->verticalScrollBar()->maximum(); + // make sure the vertical scroll bar is visible + QVERIFY(maxAfterSet != 0); + + plainTextEdit->clear(); + plainTextEdit->setPlainText(baseText); + plainTextEdit->hide(); + plainTextEdit->appendPlainText(textToAppend); + plainTextEdit->show(); + const auto maxAfterAppend = plainTextEdit->verticalScrollBar()->maximum(); + QVERIFY(maxAfterAppend != 0); + + QCOMPARE(maxAfterAppend, maxAfterSet); +} + QTEST_MAIN(tst_QPlainTextEdit) #include "tst_qplaintextedit.moc" |