diff --git a/tests/modules/programs/lazyworktree/default.nix b/tests/modules/programs/lazyworktree/default.nix
index cc19e1b10..1d2e28817 100644
--- a/tests/modules/programs/lazyworktree/default.nix
+++ b/tests/modules/programs/lazyworktree/default.nix
@@ -1 +1,4 @@
-{ lazyworktree-settings = ./settings.nix; }
+{
+  lazyworktree-no-package-empty-settings = ./no-package-empty-settings.nix;
+  lazyworktree-settings = ./settings.nix;
+}
diff --git a/tests/modules/programs/lazyworktree/no-package-empty-settings.nix b/tests/modules/programs/lazyworktree/no-package-empty-settings.nix
new file mode 100644
index 000000000..2c986ab47
--- /dev/null
+++ b/tests/modules/programs/lazyworktree/no-package-empty-settings.nix
@@ -0,0 +1,12 @@
+{
+  programs.lazyworktree = {
+    enable = true;
+    package = null;
+    settings = { };
+  };
+
+  nmt.script = ''
+    assertPathNotExists home-path/bin/lazyworktree
+    assertPathNotExists home-files/.config/lazyworktree/config.yaml
+  '';
+}
diff --git a/tests/modules/programs/lazyworktree/settings.nix b/tests/modules/programs/lazyworktree/settings.nix
index f8ca25c05..e07783a10 100644
--- a/tests/modules/programs/lazyworktree/settings.nix
+++ b/tests/modules/programs/lazyworktree/settings.nix
@@ -1,6 +1,13 @@
 {
+  programs.bash.enable = true;
+  programs.fish.enable = true;
+  programs.zsh.enable = true;
+
   programs.lazyworktree = {
     enable = true;
+    enableBashIntegration = true;
+    enableFishIntegration = true;
+    enableZshIntegration = true;
     settings = {
       worktree_dir = "~/.local/share/worktrees";
       sort_mode = "switched";
@@ -21,5 +28,16 @@
     assertFileExists home-files/.config/lazyworktree/config.yaml
     assertFileContent home-files/.config/lazyworktree/config.yaml \
       ${./config.yaml}
+
+    assertFileExists home-files/.bashrc
+    assertFileContains home-files/.bashrc 'function lwt() {'
+    assertFileContains home-files/.bashrc 'lazyworktree_dir="$(command lazyworktree "$@")" || return'
+
+    assertFileExists home-files/.zshrc
+    assertFileContains home-files/.zshrc 'function lwt() {'
+    assertFileContains home-files/.zshrc 'lazyworktree_dir="$(command lazyworktree "$@")" || return'
+
+    assertFileExists home-files/.config/fish/functions/lwt.fish
+    assertFileContains home-files/.config/fish/functions/lwt.fish 'set -l lazyworktree_dir (command lazyworktree $argv)'
   '';
 }