test.nix

    # Sample Nix file
    # ---------------
    let
        bool = true && false;
        var1 = if 3 < 4 then "a" else "b";
    in {
        /*
           Multi-line comments
        */
        inherit var1;

        var2 = with builtins; [
            0 1 2 (-3) (-4)
            123.456 .12e34
            (12 + 345 * 6789 / 321)
        ];

        var3 = [
            "Single-line string"
            "
              Multi-line string
            "
            ''
              Indented string.
            ''
        ];
        nested.var4 = [
            "String with ${var1}"
            "Another one with escaped \${var1}"
            ''
              Document with ${var1}
              which is ''${var1}
            ''
            ''
              My home: ${builtins.getEnv "HOME"}
              Escaped tab: ''\\t
            ''
        ];

        nested.a.imported = (import ./example.nix);

        fn = (x: y: x + y);

        fn1 = { a, b ? import ./file.nix, c ? { a = 1; b = 2; }, ... }: rec {
            inherit (import ./.);
            x = a;
        };

        var5 = {
            inherit a b c;
            inherit (expr) a b c;
        };

        var6 = {
            ${foo} = bar;
            ${bar} = baz;
            a.${b} = c;
        };

        var7 = {
            "first" = 1;
            "second" = 2;
        };

        abc."cde".fgh = abc."cde".fgh;

        attr =
          a: b:
          map (v: v + 1) [1 2 3];
        attrWithAssert =
          a: b:
          assert a == b;
          map (v: v + 1) [1 2 3];
    }