awww: remove blank space after awww-daemon when extraArgs is empty

awww: split graphical-session-target test into awww-default and awww-extraArgs

modules/services/awww.nix

@@ -57,7 +57,12 @@ in
       };
 
       Service = {
-        ExecStart = "${lib.getExe' cfg.package "${cfg.package.meta.mainProgram}-daemon"} ${lib.escapeShellArgs cfg.extraArgs}";
+        ExecStart = lib.escapeShellArgs (
+          [
+            (lib.getExe' cfg.package "${cfg.package.meta.mainProgram}-daemon")
+          ]
+          ++ cfg.extraArgs
+        );
         Environment = [
           "PATH=$PATH:${lib.makeBinPath [ cfg.package ]}"
         ];

tests/modules/services/awww/awww-default.nix

@@ -0,0 +1,16 @@
+{ config, ... }:
+{
+  services.awww = {
+    enable = true;
+    package = config.lib.test.mkStubPackage {
+      name = "awww";
+      outPath = "@awww@";
+    };
+  };
+
+  nmt.script = ''
+    serviceFile=home-files/.config/systemd/user/awww.service
+    assertFileExists $serviceFile
+    assertFileContent $serviceFile ${./awww-default.service}
+  '';
+}

tests/modules/services/awww/awww-default.service

@@ -3,7 +3,7 @@ WantedBy=graphical-session.target
 
 [Service]
 Environment=PATH=$PATH:@awww@/bin
-ExecStart=@awww@/bin/awww-daemon --no-cache --layer bottom
+ExecStart=@awww@/bin/awww-daemon
 Restart=always
 RestartSec=10
 

tests/modules/services/awww/awww-extraArgs.nix

@@ -15,6 +15,7 @@
 
   nmt.script = ''
     serviceFile=home-files/.config/systemd/user/awww.service
-    assertFileContent $serviceFile ${./awww-graphical-session-target.service}
+    assertFileExists $serviceFile
+    assertFileContains $serviceFile "ExecStart=@awww@/bin/awww-daemon --no-cache --layer bottom";
   '';
 }

tests/modules/services/awww/default.nix

@@ -1,6 +1,7 @@
 { lib, pkgs, ... }:
 
 lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
-  awww-graphical-session-target = ./awww-graphical-session-target.nix;
+  awww-default = ./awww-default.nix;
+  awww-extraArgs = ./awww-extraArgs.nix;
   awww-swww-package = ./awww-swww-package.nix;
 }