- When trying to start with unknown Markdown extension, ReText prints a warning but starts anyway;
- When trying to save the file to read-only destination, ReText doesn't crash, it displays a "Failed to save the file" warning message, and doesn't mark the file as saved;
- Quit dialogs work as expected.
All test cases pass successfully:
- When trying to start with unknown Markdown extension, ReText prints a warning but starts anyway;
- When trying to save the file to read-only destination, ReText doesn't crash, it displays a "Failed to save the file" warning message, and doesn't mark the file as saved;
- Quit dialogs work as expected.