{ config, lib, pkgs, ... }: with lib; let pvScript = builtins.toFile "pv.sh" "cat $1"; expected = builtins.toFile "settings-expected" '' set icons set noignorecase set ratios "2:2:3" set tabstop 4 cmd added :echo "foo" cmd multiline :{{ push gg echo "bar" push i }} cmd removed map aa should-be-added map ab cmap <c-a> should-be-added cmap <c-b> set previewer ${pvScript} map i ${"$"}${pvScript} "$f" | less -R # More config... ''; in { config = { programs.lf = { enable = true; cmdKeybindings = { "<c-a>" = "should-be-added"; "<c-b>" = null; }; commands = { added = '':echo "foo"''; removed = null; multiline = '' :{{ push gg echo "bar" push i }}''; }; extraConfig = '' # More config... ''; keybindings = { aa = "should-be-added"; ab = null; }; previewer = { keybinding = "i"; source = pvScript; }; settings = { ignorecase = false; icons = true; tabstop = 4; ratios = "2:2:3"; }; }; nixpkgs.overlays = [ (self: super: { lf = pkgs.writeScriptBin "dummy-lf" ""; }) ]; nmt.script = '' assertFileExists home-files/.config/lf/lfrc assertFileContent home-files/.config/lf/lfrc ${expected} ''; }; }