treewide: replace attrs by formats or types.anything

tests/modules/programs/alacritty/default.nix

@@ -1,4 +1,5 @@
 {
   alacritty-example-settings = ./example-settings.nix;
   alacritty-empty-settings = ./empty-settings.nix;
+  alacritty-merging-settings = ./settings-merging.nix;
 }

tests/modules/programs/alacritty/settings-merging-expected.yml

@@ -0,0 +1 @@
+{"font":{"bold":{"family":"SFMono"},"normal":{"family":"SFMono"}},"key_bindings":[{"chars":"\x0c","key":"K","mods":"Control"}],"window":{"dimensions":{"columns":200,"lines":3}}}

tests/modules/programs/alacritty/settings-merging.nix

@@ -0,0 +1,39 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+  config = {
+    programs.alacritty = {
+      enable = true;
+      package = pkgs.writeScriptBin "dummy-alacritty" "";
+
+      settings = {
+        window.dimensions = {
+          lines = 3;
+          columns = 200;
+        };
+
+        key_bindings = [{
+          key = "K";
+          mods = "Control";
+          chars = "\\x0c";
+        }];
+
+        font = let
+          defaultFont =
+            lib.mkMerge [ (lib.mkIf true "SFMono") (lib.mkIf false "Iosevka") ];
+        in {
+          normal.family = defaultFont;
+          bold.family = defaultFont;
+        };
+      };
+    };
+
+    nmt.script = ''
+      assertFileContent \
+        home-files/.config/alacritty/alacritty.yml \
+        ${./settings-merging-expected.yml}
+    '';
+  };
+}

tests/modules/programs/vscode/keybindings.nix

@@ -27,7 +27,25 @@ let
   else
     ".config/Code/User/keybindings.json";
 
-  expectedJson = pkgs.writeText "expected.json" (builtins.toJSON bindings);
+  expectedJson = pkgs.writeText "expected.json" ''
+    [
+      {
+        "command": "editor.action.clipboardCopyAction",
+        "key": "ctrl+c",
+        "when": "textInputFocus && false"
+      },
+      {
+        "command": "deleteFile",
+        "key": "ctrl+c",
+        "when": ""
+      },
+      {
+        "command": "deleteFile",
+        "key": "d",
+        "when": "explorerViewletVisible"
+      }
+    ]
+  '';
 in {
   config = {
     programs.vscode = {