Vader is a test framework for testing other vim plugins.
27 of the plugins in vim-plugin-names use Vader for their tests.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

I tested this by running the seoul256 tests like this:

git clone https://github.com/junegunn/seoul256.vim.git
$(nix-build -I nixpkgs="$HOME/devel/nixpkgs" -E 'with import <nixpkgs> {}; vim_configurable.customize { name = "vim-with-vader"; vimrcConfig.packages.myVimPackage = with pkgs.vimPlugins; { start = [ vader-vim seoul256-vim ]; }; }')/bin/vim-with-vader seoul256.vim/test/seoul256.vader

and then running the vim command :Vader. Result:

Notify maintainers

cc @