installShellFiles.tests: Add nushell to tests

pkgs/by-name/in/installShellFiles/tests/install-completion-cmd.nix

···
     echo bar > bar.zsh
     echo baz > baz.fish
     echo qux > qux.fish
+    echo buzz > buzz.nu
 
-    installShellCompletion --cmd foobar --bash foo.bash --zsh bar.zsh --fish baz.fish --name qux qux.fish
+    installShellCompletion \
+      --cmd foobar --bash foo.bash \
+      --zsh bar.zsh \
+      --fish baz.fish --name qux qux.fish \
+      --nushell --cmd buzzbar buzz.nu
 
     cmp foo.bash $out/share/bash-completion/completions/foobar.bash
     cmp bar.zsh $out/share/zsh/site-functions/_foobar
     cmp baz.fish $out/share/fish/vendor_completions.d/foobar.fish
     cmp qux.fish $out/share/fish/vendor_completions.d/qux
+    cmp buzz.nu $out/share/nushell/vendor/autoload/buzzbar.nu
   ''

pkgs/by-name/in/installShellFiles/tests/install-completion-fifo.nix

···
     installShellCompletion \
       --bash --name foo.bash <(echo foo) \
       --zsh --name _foo <(echo bar) \
-      --fish --name foo.fish <(echo baz)
+      --fish --name foo.fish <(echo baz) \
+      --nushell --name foo.nu <(echo bucks)
 
     [[ $(<$out/share/bash-completion/completions/foo.bash) == foo ]] || { echo "foo.bash comparison failed"; exit 1; }
     [[ $(<$out/share/zsh/site-functions/_foo) == bar ]] || { echo "_foo comparison failed"; exit 1; }
     [[ $(<$out/share/fish/vendor_completions.d/foo.fish) == baz ]] || { echo "foo.fish comparison failed"; exit 1; }
+    [[ $(<$out/share/nushell/vendor/autoload/foo.nu) == bucks ]] || { echo "foo.nu comparison failed"; exit 1; }
   ''

pkgs/by-name/in/installShellFiles/tests/install-completion-inference.nix

···
     echo foo > foo.bash
     echo bar > bar.zsh
     echo baz > baz.fish
+    echo buzz > buzz.nu
 
-    installShellCompletion foo.bash bar.zsh baz.fish
+    installShellCompletion foo.bash bar.zsh baz.fish buzz.nu
 
     cmp foo.bash $out/share/bash-completion/completions/foo.bash
     cmp bar.zsh $out/share/zsh/site-functions/_bar
     cmp baz.fish $out/share/fish/vendor_completions.d/baz.fish
+    cmp buzz.nu $out/share/nushell/vendor/autoload/buzz.nu
   ''

pkgs/by-name/in/installShellFiles/tests/install-completion-name.nix

···
     echo foo > foo
     echo bar > bar
     echo baz > baz
+    echo bucks > bucks
 
-    installShellCompletion --bash --name foobar.bash foo --zsh --name _foobar bar --fish baz
+    installShellCompletion \
+      --bash --name foobar.bash foo \
+      --zsh --name _foobar bar \
+      --fish baz \
+      --nushell --name foobar.nu bucks
 
     cmp foo $out/share/bash-completion/completions/foobar.bash
     cmp bar $out/share/zsh/site-functions/_foobar
     cmp baz $out/share/fish/vendor_completions.d/baz
+    cmp bucks $out/share/nushell/vendor/autoload/foobar.nu
   ''

pkgs/by-name/in/installShellFiles/tests/install-completion.nix

···
     echo baz > baz
     echo qux > qux.zsh
     echo quux > quux
+    echo quokka > quokka
 
-    installShellCompletion --bash foo bar --zsh baz qux.zsh --fish quux
+    installShellCompletion \
+      --bash foo bar \
+      --zsh baz qux.zsh \
+      --fish quux \
+      --nushell quokka
 
     cmp foo $out/share/bash-completion/completions/foo
     cmp bar $out/share/bash-completion/completions/bar
     cmp baz $out/share/zsh/site-functions/_baz
     cmp qux.zsh $out/share/zsh/site-functions/_qux
     cmp quux $out/share/fish/vendor_completions.d/quux
+    cmp quokka $out/share/nushell/vendor/autoload/quokka
   ''