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I’ve figured out a great trick, to be able to run mix test with filename and line numbers as longs a https://github.com/helix-editor/helix/pull/6979 is not merged yet.

I’m using zellij, wezterm and helix of course.

  1. I use this script to parse the file and line number from the terminal:
        set -x

        status_line=$(wezterm cli get-text | rg -e "(?:NOR\s+|NORMAL|INS\s+|INSERT|SEL\s+|SELECT)\s+[\x{2800}-\x{28FF}]*\s+(\S*)\s[^│]* (\d+):*.*" -o --replace '$1 $2')
        filename=$(echo $status_line | awk '{ print $1}')
        line_number=$(echo $status_line | awk '{ print $2}')

        case "$1" in
          "file")
            mix test $filename
            ;;
          "line")
            mix test $filename:$line_number
            ;;
          "all")
            mix test
            ;;
        esac

Source: nix-hour/code/29/home.nix at dfe7bfde9dc117b3f2d583eb418f2376f141757a · tweag/nix-hour · GitHub

save it somewhere as executable.

  1. I add these key-bindings in helix:
[keys.normal."t"]
a = ":run-shell-command zellij run -d right -- helix-wezterm-script.sh all"
f = ":run-shell-command zellij run -d right -- helix-wezterm-script.sh file"
l = ":run-shell-command zellij run -d right -- helix-wezterm-script.sh line"

And now you can run tl in a test file and it will run the test on that line in split.

Hopefully this is useful to someone.

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