QApplicationGlobalFixture.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2019 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include <cxxtest/GlobalFixture.h>
 
#include "MantidKernel/WarningSuppressions.h"
#include <QApplication>
 
class QApplicationGlobalFixture : CxxTest::GlobalFixture {
public:
  bool setUpWorld() override {
    m_app = new QApplication(m_argc, m_argv);
    return true;
  }
 
  // Removed as it causes a segfault on Ubuntu 20.04 due to PyQt claiming
  // the Qapplication object and deleting it before tearDownWorld occurs.
  // the memory leak caused by m_app not being deleted in some circumstances
  // Doesn't matter as it executes this on exit
  // bool tearDownWorld() override {
  //   delete m_app;
  //   return true;
  // }
 
  int m_argc = 1;
  GNU_DIAG_OFF("pedantic")
  char *m_argv[1] = {"QAppForTesting"};
  GNU_DIAG_ON("pedantic")
  QApplication *m_app;
};