Open GUI linux terminal in non-interactive mode

It would be helpful if I can open a terminal and run commands exactly as if they would be run by a non-interactive bash script, to test whether certain commands work in non-interactive mode without having to make a script for it. Is this possible? To be clear I don't mean to set the terminal to non-interactive mode after having started, since at that point it will already have run e.g. .bashrc thereby changing the environment. For example, suppose I have a command test_command file1.txt, but test_command is defined in .bashrc. Then since in non-interactive mode the command won't be found, it shouldn't work in this terminal either.