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Merge bitcoin-core/gui#335: test: Use QSignalSpy instead of QEventLoop

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7eea659fc9 qt, test: use qsignalspy instead of qeventloop (Jarol Rodriguez)

Pull request description:

  This PR refactors our GUI `apptests` to use [QSignalSpy](https://doc.qt.io/qt-5/qsignalspy.html) instead of [QEventLoop](https://doc.qt.io/qt-5/qeventloop.html).

  `QSignalSpy` is more appropriate for our GUI test's as it is purpose-built for testing emission of signals and sets up its own `QEventLoop` when the `wait` function is called.

ACKs for top commit:
  hebasto:
    ACK 7eea659fc9, tested on Linux Mint 20.1 (Qt 5.12.8).
  promag:
    Code review ACK 7eea659fc9.

Tree-SHA512: 3adddbcc5efd726302b606980c9923025c44bb8ee16cb8a183e633e423179c0822db66de9ccba20dc5124fff34af4151a379c9cd18130625c60789ce809ee6fd
This commit is contained in:
Hennadii Stepanov 2021-05-20 23:57:50 +03:00
commit e2b55cd201
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1 changed files with 5 additions and 4 deletions
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9
src/qt/test/apptests.cpp
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@ -20,9 +20,9 @@
#endif
#include <QAction>
#include <QEventLoop>
#include <QLineEdit>
#include <QScopedPointer>
#include <QSignalSpy>
#include <QTest>
#include <QTextEdit>
#include <QtGlobal>
@ -33,13 +33,14 @@ namespace {
//! Call getblockchaininfo RPC and check first field of JSON output.
void TestRpcCommand(RPCConsole* console)
{
QEventLoop loop;
QTextEdit* messagesWidget = console->findChild<QTextEdit*>("messagesWidget");
QObject::connect(messagesWidget, &QTextEdit::textChanged, &loop, &QEventLoop::quit);
QLineEdit* lineEdit = console->findChild<QLineEdit*>("lineEdit");
QSignalSpy mw_spy(messagesWidget, &QTextEdit::textChanged);
QVERIFY(mw_spy.isValid());
QTest::keyClicks(lineEdit, "getblockchaininfo");
QTest::keyClick(lineEdit, Qt::Key_Return);
loop.exec();
QVERIFY(mw_spy.wait(1000));
QCOMPARE(mw_spy.count(), 2);
QString output = messagesWidget->toPlainText();
UniValue value;
value.read(output.right(output.size() - output.lastIndexOf(QChar::ObjectReplacementCharacter) - 1).toStdString());