ncmpcpp: add module

PR #1457

tests/modules/programs/ncmpcpp/ncmpcpp-example-settings.nix

@@ -0,0 +1,60 @@
+{ pkgs, ... }:
+
+{
+  config = {
+    programs.ncmpcpp = {
+      enable = true;
+      mpdMusicDir = "/home/user/music";
+
+      settings = {
+        user_interface = "alternative";
+        display_volume_level = false;
+        playlist_disable_highlight_delay = 0;
+      };
+
+      bindings = [
+        {
+          key = "j";
+          command = "scroll_down";
+        }
+        {
+          key = "k";
+          command = "scroll_up";
+        }
+        {
+          key = "J";
+          command = [ "select_item" "scroll_down" ];
+        }
+        {
+          key = "K";
+          command = [ "select_item" "scroll_up" ];
+        }
+        {
+          key = "x";
+          command = "delete_playlist_items";
+        }
+        {
+          key = "x";
+          command = "delete_browser_items";
+        }
+        {
+          key = "x";
+          command = "delete_stored_playlist";
+        }
+      ];
+    };
+
+    nixpkgs.overlays =
+      [ (self: super: { ncmpcpp = pkgs.writeScriptBin "dummy-ncmpcpp" ""; }) ];
+
+    nmt.script = ''
+      assertFileContent \
+        home-files/.config/ncmpcpp/config \
+        ${./ncmpcpp-example-settings-expected-config}
+
+      assertFileContent \
+        home-files/.config/ncmpcpp/bindings \
+        ${./ncmpcpp-example-settings-expected-bindings}
+    '';
+  };
+}