Method testLoadSaveLiveDataLinkedFile_FileNotExists

tests/livedata/LiveDataTest.cpp:1603–1660

}

void LiveDataTest::testLoadSaveLiveDataLinkedFile_FileNotExists() {
	QString savePath;
	QString importFilename;
	{
		// create a temp file and write some data into it
		QTemporaryFile tempFile;
		if (!tempFile.open())
			QFAIL("failed to create the temp file for writing");

		importFilename = tempFile.fileName();
		QFile file(importFilename);
		if (!file.open(QIODevice::ReadWrite | QIODevice::Truncate | QIODevice::Text))
			QFAIL("failed to open the temp file for writing");

		file.write("1,2\n3,4\n");
		file.flush();

		Project project;
		CREATE_DUMMY_LIVEDATA_PROJECT(project, importFilename);
		dataSource->setFileLinked(true); // Not linked, the column data is stored in the file

		SAVE_PROJECT("testLoadSaveLiveDataSource");
	}

	Project project;
	project.load(savePath);
	const auto curves = project.children<XYCurve>(AbstractAspect::ChildIndexFlag::Recursive);
	QCOMPARE(curves.count(), 1);
	const auto* curve = curves.first();

	const auto children = project.children<LiveDataSource>();
	QCOMPARE(children.count(), 1);
	const auto* dataSource = children.first();

	QCOMPARE(dataSource->columnCount(), 0);
	QCOMPARE(dataSource->rowCount(), 0);
	QCOMPARE(curve->xColumn(), nullptr);
	QCOMPARE(curve->yColumn(), nullptr);

	// Create file again
	QFile file(importFilename);
	if (!file.open(QIODevice::ReadWrite | QIODevice::Truncate | QIODevice::Text))
		QFAIL("failed to open the temp file for writing");

	file.write("1,2\n3,4\n");
	file.flush();
	file.close();

	waitForSignal(dataSource, &LiveDataSource::readOnUpdateCalled);

	QCOMPARE(dataSource->columnCount(), 2);
	QCOMPARE(dataSource->rowCount(), 2);

	QVERIFY(dataSource->column(0));
	QVERIFY(dataSource->column(1));
	QCOMPARE(curve->xColumn(), dataSource->column(0));
	QCOMPARE(curve->yColumn(), dataSource->column(1));
}