tests: rework derivation stubbing

Instead of having to manually stub packages that should not be
downloaded we instead automatically stub all packages (except a small
list of whitelisted ones). Tests can re-introduce the real package by
using the `realPkgs` module argument.

tests/default.nix

@@ -9,13 +9,86 @@ let
     sha256 = "0qhn7nnwdwzh910ss78ga2d00v42b0lspfd7ybl61mpfgz3lmdcj";
   };
 
+  # Recursively replace each derivation in the given attribute set with the same
+  # derivation but with the `outPath` attribute set to the string
+  # `"@package-name@"`. This allows the tests to refer to derivations through
+  # their values without establishing an actual dependency on the derivation
+  # output.
+  scrubDerivations = attrs:
+    let
+      scrubDerivation = name: value:
+        let
+          scrubbedValue = scrubDerivations value;
+
+          newDrvAttrs = {
+            buildScript = abort "no build allowed";
+
+            outPath = builtins.traceVerbose ("${name} - got out path")
+              "@${lib.getName value}@";
+
+            # Prevent getOutput from descending into outputs
+            outputSpecified = true;
+
+            # Allow the original package to be used in derivation inputs
+            __spliced = {
+              buildHost = value;
+              hostTarget = value;
+            };
+          };
+        in if lib.isAttrs value then
+          if lib.isDerivation value then
+            scrubbedValue // newDrvAttrs
+          else
+            scrubbedValue
+        else
+          value;
+    in lib.mapAttrs scrubDerivation attrs;
+
+  # Globally unscrub a few selected packages that are used by a wide selection of tests.
+  whitelist = let
+    inner = self: super: {
+      inherit (pkgs)
+        coreutils jq desktop-file-utils diffutils findutils glibcLocales gettext
+        gnugrep gnused shared-mime-info emptyDirectory
+        # Needed by pretty much all tests that have anything to do with fish.
+        babelfish fish;
+
+      xorg =
+        super.xorg.overrideScope (self: super: { inherit (pkgs.xorg) lndir; });
+    };
+
+    outer = self: super:
+      inner self super // {
+        buildPackages = super.buildPackages.extend inner;
+      };
+  in outer;
+
+  scrubbedPkgs =
+    let rawScrubbedPkgs = lib.makeExtensible (final: scrubDerivations pkgs);
+    in builtins.traceVerbose "eval scrubbed nixpkgs"
+    (rawScrubbedPkgs.extend whitelist);
+
   modules = import ../modules/modules.nix {
     inherit lib pkgs;
     check = false;
-  } ++ [{
+  } ++ [
-    # Bypass <nixpkgs> reference inside modules/modules.nix to make the test
+    ({ config, ... }: {
-    # suite more pure.
+      _module.args = {
-    _module.args.pkgsPath = pkgs.path;
+        # Prevent the nixpkgs module from working. We want to minimize the number
+        # of evaluations of Nixpkgs.
+        pkgsPath = abort "pkgs path is unavailable in tests";
+        realPkgs = pkgs;
+        pkgs = let
+          overlays = config.test.stubOverlays ++ lib.optionals
+            (config.nixpkgs.overlays != null && config.nixpkgs.overlays != [ ])
+            config.nixpkgs.overlays;
+          stubbedPkgs = if overlays == [ ] then
+            scrubbedPkgs
+          else
+            builtins.traceVerbose "eval overlayed nixpkgs"
+            (lib.foldr (o: p: p.extend o) scrubbedPkgs overlays);
+        in lib.mkImageMediaOverride stubbedPkgs;
+      };
 
       # Fix impurities. Without these some of the user's environment
       # will leak into the tests through `builtins.getEnv`.
@@ -33,7 +106,8 @@ let
       imports = [ ./asserts.nix ./big-test.nix ./stubs.nix ];
 
       test.enableBig = enableBig;
-  }];
+    })
+  ];
 
   isDarwin = pkgs.stdenv.hostPlatform.isDarwin;
   isLinux = pkgs.stdenv.hostPlatform.isLinux;

tests/modules/config/i18n/default.nix

@@ -15,24 +15,23 @@
     };
   };
 
-  i18n-custom-locales = { pkgs, ... }: {
+  i18n-custom-locales = { config, pkgs, ... }: {
-    config = let stub = pkgs.glibcLocalesCustom;
+    config = let
-    in {
+      customGlibcLocales = pkgs.glibcLocales.override {
-      test.stubs.glibcLocalesCustom = {
+        allLocales = false;
-        inherit (pkgs.glibcLocales) version;
+        locales = [ "en_US.UTF-8/UTF-8" ];
-        outPath = null; # we need a real path for this stub
       };
-
+    in {
-      i18n.glibcLocales = stub;
+      i18n.glibcLocales = customGlibcLocales;
 
       nmt.script = ''
         hmEnvFile=home-path/etc/profile.d/hm-session-vars.sh
         assertFileExists $hmEnvFile
-        assertFileRegex $hmEnvFile 'LOCALE_ARCHIVE_.*${stub}'
+        assertFileRegex $hmEnvFile 'LOCALE_ARCHIVE_.*${customGlibcLocales}'
 
         envFile=home-files/.config/environment.d/10-home-manager.conf
         assertFileExists $envFile
-        assertFileRegex $envFile 'LOCALE_ARCHIVE_.*${stub}'
+        assertFileRegex $envFile 'LOCALE_ARCHIVE_.*${customGlibcLocales}'
       '';
     };
   };

tests/modules/i18n/input-method/fcitx5-configuration.nix

@@ -1,13 +1,13 @@
-{ config, pkgs, ... }:
+{ config, lib, realPkgs, ... }:
-
-{
-  imports = [ ./fcitx5-stubs.nix ];
 
+lib.mkIf config.test.enableBig {
   i18n.inputMethod = {
     enabled = "fcitx5";
     fcitx5.waylandFrontend = true;
   };
 
+  _module.args.pkgs = lib.mkForce realPkgs;
+
   nmt.script = ''
     assertFileExists home-files/.config/systemd/user/fcitx5-daemon.service
     assertFileNotRegex home-path/etc/profile.d/hm-session-vars.sh 'GTK_IM_MODULE'

tests/modules/i18n/input-method/fcitx5-stubs.nix

@@ -1,57 +0,0 @@
-{
-  test.stubs = {
-    fcitx5 = {
-      version = "0";
-      outPath = null;
-      buildScript = ''
-        mkdir -p $out/bin $out/share/applications $out/share/dbus-1/services $out/etc/xdg/autostart
-        touch $out/bin/fcitx5 \
-              $out/bin/fcitx5-config-qt \
-              $out/share/applications/org.fcitx.Fcitx5.desktop \
-              $out/share/dbus-1/services/org.fcitx.Fcitx5.service \
-              $out/etc/xdg/autostart/org.fcitx.Fcitx5.desktop
-        # The grep usage of fcitx5-with-addons expects one of the files to match with the fcitx5.out
-        # https://github.com/NixOS/nixpkgs/blob/d2eb4be48705289791428c07aca8ff654c1422ba/pkgs/tools/inputmethods/fcitx5/with-addons.nix#L40-L44
-        echo $out >> $out/etc/xdg/autostart/org.fcitx.Fcitx5.desktop
-        chmod +x $out/bin/fcitx5 \
-                 $out/bin/fcitx5-config-qt
-      '';
-    };
-    fcitx5-lua = { outPath = null; };
-    fcitx5-gtk = { outPath = null; };
-
-    gtk2 = {
-      buildScript = ''
-        mkdir -p $out/bin
-        echo '#/usr/bin/env bash' > $out/bin/gtk-query-immodules-2.0
-        chmod +x $out/bin/*
-      '';
-    };
-    gtk3 = {
-      buildScript = ''
-        mkdir -p $out/bin
-        echo '#/usr/bin/env bash' > $out/bin/gtk-query-immodules-3.0
-        chmod +x $out/bin/*
-      '';
-    };
-  };
-
-  nixpkgs.overlays = [
-    (final: prev: {
-      libsForQt5 = prev.libsForQt5.overrideScope (qt5final: qt5prev: {
-        fcitx5-chinese-addons = prev.mkStubPackage { outPath = null; };
-        fcitx5-configtool = prev.mkStubPackage { outPath = null; };
-        fcitx5-qt = prev.mkStubPackage { outPath = null; };
-
-        fcitx5-with-addons = qt5prev.fcitx5-with-addons.override {
-          inherit (final) libsForQt5 qt6Packages;
-        };
-      });
-
-      qt6Packages = prev.qt6Packages.overrideScope (qt6final: qt6prev: {
-        fcitx5-qt = prev.mkStubPackage { outPath = null; };
-      });
-
-    })
-  ];
-}

tests/modules/i18n/input-method/kime-configuration.nix

@@ -1,5 +1,3 @@
-{ config, pkgs, ... }:
-
 let
 
   kimeConfig = ''

tests/modules/misc/debug/default.nix

@@ -1,8 +1,8 @@
 {
-  debug = { pkgs, config, lib, ... }:
+  debug = { realPkgs, config, lib, ... }:
     lib.mkIf config.test.enableBig {
       home.enableDebugInfo = true;
-      home.packages = with pkgs; [ curl gdb ];
+      home.packages = with realPkgs; [ curl gdb ];
 
       nmt.script = ''
         [ -L $TESTED/home-path/lib/debug/curl ] \

tests/modules/misc/fontconfig/no-font-package.nix

@@ -1,9 +1,4 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   home.packages = [
     # Look, no font!
   ];
@@ -13,5 +8,4 @@ with lib;
   nmt.script = ''
     assertPathNotExists home-path/lib/fontconfig/cache
   '';
-  };
 }

tests/modules/misc/fontconfig/single-font-package.nix

@@ -1,15 +1,13 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, pkgs, realPkgs, ... }:
 
-with lib;
+lib.mkIf config.test.enableBig {
-
-{
-  config = {
   home.packages = [ pkgs.comic-relief ];
 
   fonts.fontconfig.enable = true;
 
+  _module.args.pkgs = lib.mkForce realPkgs;
+
   nmt.script = ''
     assertDirectoryNotEmpty home-path/lib/fontconfig/cache
   '';
-  };
 }

tests/modules/misc/gtk/gtk2-basic-config.nix

@@ -1,17 +1,10 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   gtk = {
     enable = true;
     theme.name = "Adwaita";
     gtk2.extraConfig = "gtk-can-change-accels = 1";
   };
 
-    test.stubs.dconf = { };
-
   nmt.script = ''
     assertFileExists home-files/.gtkrc-2.0
 
@@ -21,5 +14,4 @@ with lib;
     assertFileRegex home-path/etc/profile.d/hm-session-vars.sh \
         'GTK2_RC_FILES=.*/.gtkrc-2.0'
   '';
-  };
 }

tests/modules/misc/gtk/gtk2-config-file-location.nix

@@ -1,18 +1,12 @@
-{ config, lib, pkgs, ... }:
+{ config, ... }:
-
-with lib;
 
 {
-  config = {
   gtk.enable = true;
   gtk.gtk2.configLocation = "${config.xdg.configHome}/gtk-2.0/gtkrc";
 
-    test.stubs.dconf = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/gtk-2.0/gtkrc
     assertFileRegex home-path/etc/profile.d/hm-session-vars.sh \
         'GTK2_RC_FILES=.*/\.config/gtk-2.0/gtkrc'
   '';
-  };
 }

tests/modules/misc/gtk/gtk3-basic-settings.nix

@@ -1,9 +1,4 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   gtk = {
     enable = true;
     gtk3.extraConfig = {
@@ -12,13 +7,10 @@ with lib;
     };
   };
 
-    test.stubs.dconf = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/gtk-3.0/settings.ini
 
     assertFileContent home-files/.config/gtk-3.0/settings.ini \
       ${./gtk3-basic-settings-expected.ini}
   '';
-  };
 }

tests/modules/misc/manual/manual.nix

@@ -1,13 +1,14 @@
-{ ... }:
+{ lib, realPkgs, ... }:
 
 {
-  config = {
   manual = {
     html.enable = true;
     manpages.enable = true;
     json.enable = true;
   };
 
+  _module.args.pkgs = lib.mkForce realPkgs;
+
   nmt.script = ''
     assertFileExists home-path/share/doc/home-manager/index.xhtml
     assertFileExists home-path/share/doc/home-manager/options.json
@@ -18,5 +19,4 @@
     assertFileExists home-path/share/man/man1/home-manager.1
     assertFileExists home-path/share/man/man5/home-configuration.nix.5
   '';
-  };
 }

tests/modules/misc/numlock/numlock.nix

@@ -1,16 +1,8 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   xsession.numlock.enable = true;
 
-    test.stubs.numlockx = { };
-
   nmt.script = ''
     serviceFile=home-files/.config/systemd/user/numlockx.service
     assertFileExists $serviceFile
   '';
-  };
 }

tests/modules/misc/qt/qt-platform-theme-gnome.nix

@@ -6,13 +6,6 @@
     style.name = "adwaita";
   };
 
-  test.stubs = {
-    qgnomeplatform = { };
-    qgnomeplatform-qt6 = { };
-    adwaita-qt = { };
-    adwaita-qt6 = { };
-  };
-
   nmt.script = ''
     assertFileRegex home-path/etc/profile.d/hm-session-vars.sh \
       'QT_QPA_PLATFORMTHEME="gnome"'

tests/modules/misc/qt/qt-platform-theme-gtk.nix

@@ -1,6 +1,6 @@
-{
+{ config, ... }:
-  imports = [ ../../i18n/input-method/fcitx5-stubs.nix ];
 
+{
   qt = {
     enable = true;
     platformTheme.name = "gtk";
@@ -11,11 +11,11 @@
   nixpkgs.overlays = [
     (final: prev: {
       libsForQt5 = prev.libsForQt5.overrideScope (qt5final: qt5prev: {
-        qtstyleplugins = prev.mkStubPackage { outPath = null; };
+        qtstyleplugins = config.lib.test.mkStubPackage { outPath = null; };
       });
 
       qt6Packages = prev.qt6Packages.overrideScope (qt6final: qt6prev: {
-        qt6gtk2 = prev.mkStubPackage { outPath = null; };
+        qt6gtk2 = config.lib.test.mkStubPackage { outPath = null; };
       });
     })
   ];

tests/modules/misc/xdg/autostart.nix

@@ -1,20 +1,38 @@
-{ pkgs, ... }: {
+{ pkgs, ... }:
-  config = {
+
+{
   xdg.autostart = {
     enable = true;
     entries = [
-        "${pkgs.evolution}/share/applications/org.gnome.Evolution.desktop"
+      "${pkgs.test1}/share/applications/test1.desktop"
-        "${pkgs.tdesktop}/share/applications/org.telegram.desktop.desktop"
+      "${pkgs.test2}/share/applications/test2.desktop"
     ];
   };
 
-    nmt.script = ''
+  test.stubs = {
-      assertFileExists home-files/.config/autostart/org.gnome.Evolution.desktop
+    test1 = {
-      assertFileContent home-files/.config/autostart/org.gnome.Evolution.desktop \
+      outPath = null;
-        ${pkgs.evolution}/share/applications/org.gnome.Evolution.desktop
+      buildScript = ''
-      assertFileExists home-files/.config/autostart/org.telegram.desktop.desktop
+        mkdir -p $out/share/applications
-      assertFileContent home-files/.config/autostart/org.telegram.desktop.desktop \
+        echo test1 > $out/share/applications/test1.desktop
-        ${pkgs.tdesktop}/share/applications/org.telegram.desktop.desktop
       '';
     };
+    test2 = {
+      outPath = null;
+      buildScript = ''
+        mkdir -p $out/share/applications
+        echo test2 > $out/share/applications/test2.desktop
+      '';
+    };
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.config/autostart/test1.desktop
+    assertFileContent home-files/.config/autostart/test1.desktop \
+      ${pkgs.test1}/share/applications/test1.desktop
+
+    assertFileExists home-files/.config/autostart/test2.desktop
+    assertFileContent home-files/.config/autostart/test2.desktop \
+      ${pkgs.test2}/share/applications/test2.desktop
+  '';
 }

tests/modules/misc/xdg/portal.nix

@@ -1,26 +1,28 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, realPkgs, ... }:
 
 lib.mkIf config.test.enableBig {
   xdg.portal = {
     enable = true;
     extraPortals =
-      [ pkgs.xdg-desktop-portal-hyprland pkgs.xdg-desktop-portal-wlr ];
+      [ realPkgs.xdg-desktop-portal-hyprland realPkgs.xdg-desktop-portal-wlr ];
-    configPackages = [ pkgs.hyprland ];
+    configPackages = [ realPkgs.hyprland ];
     config = { sway.default = [ "wlr" "gtk" ]; };
   };
 
+  test.unstubs = [ (self: super: { inherit (realPkgs) xdg-desktop-portal; }) ];
+
   nmt.script = ''
     assertFileExists home-path/share/systemd/user/xdg-desktop-portal.service
     assertFileExists home-path/share/systemd/user/xdg-desktop-portal-wlr.service
     assertFileExists home-path/share/systemd/user/xdg-desktop-portal-hyprland.service
 
     assertFileContent home-path/share/xdg-desktop-portal/portals/hyprland.portal \
-      ${pkgs.xdg-desktop-portal-hyprland}/share/xdg-desktop-portal/portals/hyprland.portal
+      ${realPkgs.xdg-desktop-portal-hyprland}/share/xdg-desktop-portal/portals/hyprland.portal
     assertFileContent home-path/share/xdg-desktop-portal/portals/wlr.portal \
-      ${pkgs.xdg-desktop-portal-wlr}/share/xdg-desktop-portal/portals/wlr.portal
+      ${realPkgs.xdg-desktop-portal-wlr}/share/xdg-desktop-portal/portals/wlr.portal
 
     assertFileContent home-path/share/xdg-desktop-portal/hyprland-portals.conf \
-      ${pkgs.hyprland}/share/xdg-desktop-portal/hyprland-portals.conf
+      ${realPkgs.hyprland}/share/xdg-desktop-portal/hyprland-portals.conf
     assertFileContent home-files/.config/xdg-desktop-portal/sway-portals.conf \
       ${./sway-portals-expected.conf}
   '';

tests/modules/programs/abook/no-settings.nix

@@ -6,8 +6,6 @@ with lib;
   config = {
     programs.abook.enable = true;
 
-    test.stubs.abook = { };
-
     nmt.script = ''
       assertPathNotExists home-files/.config/abook/abookrc
     '';

tests/modules/programs/abook/with-settings.nix

@@ -28,8 +28,6 @@ with lib;
       '';
     };
 
-    test.stubs.abook = { };
-
     nmt.script = ''
       assertFileExists home-files/.config/abook/abookrc
       assertFileContent home-files/.config/abook/abookrc ${./with-settings.cfg}

tests/modules/programs/aerc/assertion.nix

@@ -19,8 +19,6 @@ with lib;
       This option is safe; if `passwordCommand` is properly set, no credentials will be written to the nix store.
     ''];
 
-    test.stubs.aerc = { };
-
     programs.aerc = {
       enable = true;
       extraAccounts = {

tests/modules/programs/aerc/noSettings.nix

@@ -12,7 +12,5 @@ with lib;
       assertPathNotExists ${dir}/stylesets
     '';
     programs.aerc.enable = true;
-
-    test.stubs.aerc = { };
   };
 }

tests/modules/programs/aerc/settings.nix

@@ -19,8 +19,6 @@ with lib;
       assertFileContent   ${dir}/stylesets/asLines ${./stylesets.expected}
     '';
 
-    test.stubs.aerc = { };
-
     programs.aerc = {
       enable = true;
 

tests/modules/programs/aerospace/aerospace.nix

@@ -17,8 +17,6 @@
     };
   };
 
-  test.stubs.aerospace = { };
-
   nmt.script = ''
     assertFileContent home-files/.config/aerospace/aerospace.toml ${
       ./settings-expected.toml

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

@@ -1,11 +1,7 @@
 {
-  config = {
   programs.alacritty.enable = true;
 
-    test.stubs.alacritty = { };
-
   nmt.script = ''
     assertPathNotExists home-files/.config/alacritty
   '';
-  };
 }

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

@@ -1,11 +1,6 @@
-{ config, ... }:
-
 {
-  config = {
   programs.alacritty = {
     enable = true;
-      package = config.lib.test.mkStubPackage { };
-
     settings = {
       window.dimensions = {
         lines = 3;
@@ -20,12 +15,9 @@
     };
   };
 
-    test.stubs = { alacritty = { }; };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/alacritty/alacritty.toml \
       ${./example-settings-expected.toml}
   '';
-  };
 }

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

@@ -1,11 +1,8 @@
-{ config, lib, ... }:
+{ lib, ... }:
 
 {
-  config = {
   programs.alacritty = {
     enable = true;
-      package = config.lib.test.mkStubPackage { };
-
     settings = {
       window.dimensions = {
         lines = 3;
@@ -28,12 +25,9 @@
     };
   };
 
-    test.stubs = { alacritty = { }; };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/alacritty/alacritty.toml \
       ${./settings-toml-expected.toml}
   '';
-  };
 }

tests/modules/programs/alacritty/toml-config.nix

@@ -1,11 +1,6 @@
-{ config, ... }:
-
 {
-  config = {
   programs.alacritty = {
     enable = true;
-      package = config.lib.test.mkStubPackage { };
-
     settings = {
       window.dimensions = {
         lines = 3;
@@ -25,12 +20,9 @@
     };
   };
 
-    test.stubs = { alacritty = { }; };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/alacritty/alacritty.toml \
       ${./settings-toml-expected.toml}
   '';
-  };
 }

tests/modules/programs/alot/alot.nix

@@ -1,11 +1,6 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
   imports = [ ../../accounts/email-test-accounts.nix ];
 
-  config = {
   accounts.email.accounts = {
     "hm@example.com" = {
       notmuch.enable = true;
@@ -23,12 +18,9 @@ with lib;
 
   programs.alot = { enable = true; };
 
-    test.stubs.alot = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/alot/config
     assertFileContent home-files/.config/alot/config ${./alot-expected.conf}
   '';
-  };
 }
 

tests/modules/programs/antidote/antidote.nix

@@ -1,5 +1,3 @@
-{ pkgs, ... }:
-
 let relToDotDirCustom = ".zshplugins";
 in {
   programs.zsh = {
@@ -12,11 +10,6 @@ in {
     };
   };
 
-  test.stubs = {
-    antidote = { };
-    zsh = { };
-  };
-
   nmt.script = ''
     assertFileContains home-files/${relToDotDirCustom}/.zshrc \
       'source @antidote@/share/antidote/antidote.zsh'

tests/modules/programs/aria2/settings.nix

@@ -1,9 +1,4 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   programs.aria2 = {
     enable = true;
 
@@ -20,13 +15,11 @@ with lib;
     '';
   };
 
-    test.stubs.aria2 = { };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/aria2/aria2.conf \
       ${
-          pkgs.writeText "aria2-expected-config.conf" ''
+        builtins.toFile "aria2-expected-config.conf" ''
           dht-listen-port=60000
           ftp-pasv=true
           listen-port=60000
@@ -36,5 +29,4 @@ with lib;
         ''
       }
   '';
-  };
 }

tests/modules/programs/atuin/bash.nix

@@ -1,5 +1,3 @@
-{ ... }:
-
 {
   programs = {
     atuin.enable = true;
@@ -9,11 +7,6 @@
     };
   };
 
-  test.stubs = {
-    atuin = { name = "atuin"; };
-    bash-preexec = { };
-  };
-
   nmt.script = ''
     assertFileExists home-files/.bashrc
     assertFileContains \

tests/modules/programs/atuin/empty-settings.nix

@@ -1,13 +1,6 @@
-{ ... }:
-
 {
   programs.atuin.enable = true;
 
-  test.stubs = {
-    atuin = { name = "atuin"; };
-    bash-preexec = { };
-  };
-
   nmt.script = ''
     assertPathNotExists home-files/.config/atuin/config.toml
   '';

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

@@ -12,11 +12,6 @@
     };
   };
 
-  test.stubs = {
-    atuin = { name = "atuin"; };
-    bash-preexec = { };
-  };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/atuin/config.toml \

tests/modules/programs/atuin/fish.nix

@@ -10,11 +10,6 @@
   xdg.dataFile."fish/home-manager_generated_completions".source =
     lib.mkForce (builtins.toFile "empty" "");
 
-  test.stubs = {
-    atuin = { name = "atuin"; };
-    bash-preexec = { };
-  };
-
   nmt.script = ''
     assertFileExists home-files/.config/fish/config.fish
     assertFileContains \

tests/modules/programs/atuin/no-shell.nix

@@ -17,11 +17,6 @@
   xdg.dataFile."fish/home-manager_generated_completions".source =
     lib.mkForce (builtins.toFile "empty" "");
 
-  test.stubs = {
-    atuin = { name = "atuin"; };
-    bash-preexec = { };
-  };
-
   nmt.script = ''
     assertFileNotRegex home-files/.zshrc 'atuin init zsh'
     assertFileNotRegex home-files/.bashrc 'atuin init bash'

tests/modules/programs/atuin/set-flags.nix

@@ -16,11 +16,6 @@
   xdg.dataFile."fish/home-manager_generated_completions".source =
     lib.mkForce (builtins.toFile "empty" "");
 
-  test.stubs = {
-    atuin = { name = "atuin"; };
-    bash-preexec = { };
-  };
-
   nmt.script = ''
     assertFileExists home-files/.bashrc
     assertFileContains \

tests/modules/programs/atuin/zsh.nix

@@ -1,16 +1,9 @@
-{ ... }:
-
 {
   programs = {
     atuin.enable = true;
     zsh.enable = true;
   };
 
-  test.stubs = {
-    atuin = { name = "atuin"; };
-    bash-preexec = { };
-  };
-
   nmt.script = ''
     assertFileExists home-files/.zshrc
     assertFileContains \

tests/modules/programs/autojump/default-settings.nix

@@ -1,9 +1,4 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   programs.autojump.enable = true;
 
   test.stubs.autojump = {
@@ -14,5 +9,4 @@ with lib;
   nmt.script = ''
     assertFileExists home-path/bin/autojump
   '';
-  };
 }

tests/modules/programs/autorandr/basic-configuration.nix

@@ -1,7 +1,4 @@
-{ config, pkgs, ... }:
-
 {
-  config = {
   programs.autorandr = {
     enable = true;
     profiles = {
@@ -33,8 +30,6 @@
     };
   };
 
-    test.stubs.autorandr = { };
-
   nmt.script = ''
     config=home-files/.config/autorandr/default/config
     setup=home-files/.config/autorandr/default/setup
@@ -46,7 +41,7 @@
     assertFileExists $config
     assertFileContent $config \
         ${
-            pkgs.writeText "basic-configuration.conf" ''
+          builtins.toFile "basic-configuration.conf" ''
             output DP1
             off
 
@@ -62,5 +57,4 @@
           ''
         }
   '';
-  };
 }

tests/modules/programs/autorandr/scale.nix

@@ -1,7 +1,4 @@
-{ config, pkgs, ... }:
-
 {
-  config = {
   programs.autorandr = {
     enable = true;
     profiles = {
@@ -17,18 +14,15 @@
     };
   };
 
-    test.stubs.autorandr = { };
-
   nmt.script = ''
     config=home-files/.config/autorandr/default/config
 
     assertFileExists $config
     assertFileContent $config \
         ${
-            pkgs.writeText "scale-expected.conf" ''
+          builtins.toFile "scale-expected.conf" ''
             output DP1
             scale 2x4''
         }
   '';
-  };
 }

tests/modules/programs/awscli/awscli.nix

@@ -1,5 +1,3 @@
-{ ... }:
-
 {
   programs = {
     awscli = {
@@ -14,8 +12,6 @@
     };
   };
 
-  test.stubs.awscli2 = { };
-
   nmt.script = ''
     assertFileExists home-files/.aws/config
     assertFileContent home-files/.aws/config \

tests/modules/programs/bacon/bacon.nix

@@ -21,7 +21,7 @@ in {
       };
     };
   };
-  test.stubs.bacon = { };
+
   nmt.script = ''
     assertFileExists 'home-files/${configDir}/prefs.toml'
     assertFileContent 'home-files/${configDir}/prefs.toml' ${./expected.toml}

tests/modules/programs/bacon/empty-config.nix

@@ -7,8 +7,6 @@ let
 in {
   programs.bacon.enable = true;
 
-  test.stubs.bacon = { };
-
   nmt.script = ''
     assertPathNotExists 'home-files/${configDir}/prefs.toml'
   '';

tests/modules/programs/bash/completion.nix

@@ -1,12 +1,6 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
   programs.bash.enable = true;
 
-  test.stubs.bash-completion = { };
-
   nmt.script = ''
     assertFileExists home-files/.bashrc
 

tests/modules/programs/bash/logout.nix

@@ -1,9 +1,4 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   programs.bash = {
     enable = true;
     enableCompletion = false;
@@ -23,5 +18,4 @@ with lib;
         ''
       }
   '';
-  };
 }

tests/modules/programs/bash/session-variables.nix

@@ -1,9 +1,6 @@
-{ config, lib, pkgs, ... }:
+{ config, ... }:
-
-with lib;
 
 {
-  config = {
   programs.bash = {
     enable = true;
     enableCompletion = false;
@@ -29,5 +26,4 @@ with lib;
         ''
       }
   '';
-  };
 }

tests/modules/programs/bat/bat.nix

@@ -1,9 +1,4 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   programs.bat = {
     enable = true;
 
@@ -17,21 +12,19 @@ with lib;
       lessopen = false;
     };
 
-      themes.testtheme.src = pkgs.writeText "testtheme.tmTheme" ''
+    themes.testtheme.src = builtins.toFile "testtheme.tmTheme" ''
       This is a test theme.
     '';
 
-      syntaxes.testsyntax.src = pkgs.writeText "testsyntax.sublime-syntax" ''
+    syntaxes.testsyntax.src = builtins.toFile "testsyntax.sublime-syntax" ''
       This is a test syntax.
     '';
   };
 
-    test.stubs.bat = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/bat/config
     assertFileContent home-files/.config/bat/config ${
-        pkgs.writeText "bat.expected" ''
+      builtins.toFile "bat.expected" ''
         --map-syntax='*.jenkinsfile:Groovy'
         --map-syntax='*.props:Java Properties'
         --pager='less -FR'
@@ -42,17 +35,16 @@ with lib;
 
     assertFileExists home-files/.config/bat/themes/testtheme.tmTheme
     assertFileContent home-files/.config/bat/themes/testtheme.tmTheme ${
-        pkgs.writeText "bat.expected" ''
+      builtins.toFile "bat.expected" ''
         This is a test theme.
       ''
     }
 
     assertFileExists home-files/.config/bat/syntaxes/testsyntax.sublime-syntax
     assertFileContent home-files/.config/bat/syntaxes/testsyntax.sublime-syntax ${
-        pkgs.writeText "bat.expected" ''
+      builtins.toFile "bat.expected" ''
         This is a test syntax.
       ''
     }
   '';
-  };
 }

tests/modules/programs/bat/deprecated-options.nix

@@ -1,9 +1,4 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   programs.bat = {
     enable = true;
 
@@ -22,8 +17,6 @@ with lib;
     '';
   };
 
-    test.stubs.bat = { };
-
   test.asserts.warnings.enable = true;
   test.asserts.warnings.expected = [
     ''
@@ -41,7 +34,7 @@ with lib;
   nmt.script = ''
     assertFileExists home-files/.config/bat/config
     assertFileContent home-files/.config/bat/config ${
-        pkgs.writeText "bat.expected" ''
+      builtins.toFile "bat.expected" ''
         --map-syntax='*.jenkinsfile:Groovy'
         --map-syntax='*.props:Java Properties'
         --pager='less -FR'
@@ -51,17 +44,16 @@ with lib;
 
     assertFileExists home-files/.config/bat/themes/testtheme.tmTheme
     assertFileContent home-files/.config/bat/themes/testtheme.tmTheme ${
-        pkgs.writeText "bat.expected" ''
+      builtins.toFile "bat.expected" ''
         This is a test theme.
       ''
     }
 
     assertFileExists home-files/.config/bat/syntaxes/testsyntax.sublime-syntax
     assertFileContent home-files/.config/bat/syntaxes/testsyntax.sublime-syntax ${
-        pkgs.writeText "bat.expected" ''
+      builtins.toFile "bat.expected" ''
         This is a test syntax.
       ''
     }
   '';
-  };
 }

tests/modules/programs/beets/mpdstats.nix

@@ -1,5 +1,3 @@
-{ config, ... }:
-
 {
   home.stateVersion = "23.05";
 
@@ -14,11 +12,6 @@
     mpdIntegration.enableStats = true;
   };
 
-  test.stubs = {
-    beets = { };
-    mpd = { };
-  };
-
   nmt.script = ''
     assertFileExists home-files/.config/beets/config.yaml
     assertFileContent \

tests/modules/programs/beets/mpdupdate.nix

@@ -1,11 +1,8 @@
-{ config, ... }:
-
 {
   home.stateVersion = "23.05";
 
   programs.beets = {
     enable = true;
-    package = config.lib.test.mkStubPackage { outPath = "@beets@"; };
     mpdIntegration.enableUpdate = true;
   };
 

tests/modules/programs/bemenu/basic-configuration.nix

@@ -19,8 +19,6 @@
     };
   };
 
-  test.stubs.bemenu = { };
-
   nmt.script = ''
     assertFileExists home-path/etc/profile.d/hm-session-vars.sh
     assertFileContains home-path/etc/profile.d/hm-session-vars.sh \

tests/modules/programs/bemenu/empty-configuration.nix

@@ -1,7 +1,5 @@
 {
-  programs.bemenu = { enable = true; };
+  programs.bemenu.enable = true;
-
-  test.stubs.bemenu = { };
 
   nmt.script = ''
     assertFileExists home-path/etc/profile.d/hm-session-vars.sh

tests/modules/programs/borgmatic/basic-configuration.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ config, realPkgs, ... }:
 
 let
 
@@ -61,8 +61,6 @@ in {
     };
   };
 
-  test.stubs.borgmatic = { };
-
   nmt.script = ''
     config_file=$TESTED/home-files/.config/borgmatic.d/main.yaml
     assertFileExists $config_file
@@ -120,7 +118,7 @@ in {
       builtins.elemAt backups.main.hooks.extraConfig.before_actions 0
     }"
 
-    yq=${pkgs.yq-go}/bin/yq
+    yq=${realPkgs.yq-go}/bin/yq
 
     for filter in "''${!expectations[@]}"; do
       expected_value="''${expectations[$filter]}"

tests/modules/programs/borgmatic/both-sourcedirectories-and-patterns.nix

@@ -1,10 +1,4 @@
-{ config, pkgs, ... }:
+{
-
-let
-
-  backups = config.programs.borgmatic.backups;
-
-in {
   programs.borgmatic = {
     enable = true;
     backups = {
@@ -18,8 +12,6 @@ in {
     };
   };
 
-  test.stubs.borgmatic = { };
-
   test.asserts.assertions.expected = [''
     Borgmatic backup configuration "main" cannot specify both 'location.sourceDirectories' and 'location.patterns'.
   ''];

tests/modules/programs/borgmatic/exclude-hm-symlinks-nothing-else.nix

@@ -1,11 +1,6 @@
-{ config, pkgs, ... }:
+{ realPkgs, ... }:
 
-let
+{
-
-  backups = config.programs.borgmatic.backups;
-  excludeFile = builtins.toFile "excludeFile.txt" "/foo/bar";
-
-in {
   programs.borgmatic = {
     enable = true;
     backups = {
@@ -19,13 +14,11 @@ in {
     };
   };
 
-  test.stubs.borgmatic = { };
-
   nmt.script = ''
     config_file=$TESTED/home-files/.config/borgmatic.d/main.yaml
     assertFileExists $config_file
 
-    yq=${pkgs.yq-go}/bin/yq
+    yq=${realPkgs.yq-go}/bin/yq
 
     hmExclusionsFile=$($yq '.exclude_from[0]' $config_file)
     expected_content='/home/hm-user/.config/borgmatic.d/main.yaml'

tests/modules/programs/borgmatic/exclude-hm-symlinks.nix

@@ -1,8 +1,7 @@
-{ config, pkgs, ... }:
+{ realPkgs, ... }:
 
 let
 
-  backups = config.programs.borgmatic.backups;
   excludeFile = builtins.toFile "excludeFile.txt" "/foo/bar";
 
 in {
@@ -20,8 +19,6 @@ in {
     };
   };
 
-  test.stubs.borgmatic = { };
-
   nmt.script = ''
     config_file=$TESTED/home-files/.config/borgmatic.d/main.yaml
     assertFileExists $config_file
@@ -30,7 +27,7 @@ in {
 
     expectations[exclude_from[0]]="${excludeFile}"
 
-    yq=${pkgs.yq-go}/bin/yq
+    yq=${realPkgs.yq-go}/bin/yq
 
     for filter in "''${!expectations[@]}"; do
       expected_value="''${expectations[$filter]}"

tests/modules/programs/borgmatic/include-hm-symlinks.nix

@@ -1,8 +1,7 @@
-{ config, pkgs, ... }:
+{ realPkgs, ... }:
 
 let
 
-  backups = config.programs.borgmatic.backups;
   excludeFile = builtins.toFile "excludeFile.txt" "/foo/bar";
 
 in {
@@ -20,8 +19,6 @@ in {
     };
   };
 
-  test.stubs.borgmatic = { };
-
   nmt.script = ''
     config_file=$TESTED/home-files/.config/borgmatic.d/main.yaml
     assertFileExists $config_file
@@ -30,7 +27,7 @@ in {
 
     expectations[exclude_from[0]]="${excludeFile}"
 
-    yq=${pkgs.yq-go}/bin/yq
+    yq=${realPkgs.yq-go}/bin/yq
 
     for filter in "''${!expectations[@]}"; do
       expected_value="''${expectations[$filter]}"

tests/modules/programs/borgmatic/neither-sourcedirectories-nor-patterns.nix

@@ -1,17 +1,9 @@
-{ config, pkgs, ... }:
+{
-
-let
-
-  backups = config.programs.borgmatic.backups;
-
-in {
   programs.borgmatic = {
     enable = true;
     backups = { main = { location = { repositories = [ "/mnt/disk1" ]; }; }; };
   };
 
-  test.stubs.borgmatic = { };
-
   test.asserts.assertions.expected = [''
     Borgmatic backup configuration "main" must specify one of 'location.sourceDirectories' or 'location.patterns'.
   ''];

tests/modules/programs/borgmatic/patterns-configuration.nix

@@ -1,8 +1,7 @@
-{ config, pkgs, ... }:
+{ config, realPkgs, ... }:
 
 let
 
-  boolToString = bool: if bool then "true" else "false";
   backups = config.programs.borgmatic.backups;
 
 in {
@@ -23,8 +22,6 @@ in {
     };
   };
 
-  test.stubs.borgmatic = { };
-
   nmt.script = ''
     config_file=$TESTED/home-files/.config/borgmatic.d/main.yaml
     assertFileExists $config_file
@@ -44,7 +41,7 @@ in {
       builtins.elemAt backups.main.location.patterns 3
     }"
 
-    yq=${pkgs.yq-go}/bin/yq
+    yq=${realPkgs.yq-go}/bin/yq
 
     for filter in "''${!expectations[@]}"; do
       expected_value="''${expectations[$filter]}"

tests/modules/programs/boxxy/empty-settings.nix

@@ -6,8 +6,6 @@ with lib;
   config = {
     programs.boxxy.enable = true;
 
-    test.stubs.boxxy = { };
-
     nmt.script = ''
       assertPathNotExists home-files/.config/boxxy
     '';

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

@@ -15,8 +15,6 @@ with lib;
       context = [ "/home/test_user/your_project_repo" ];
     }];
 
-    test.stubs.boxxy = { };
-
     nmt.script = ''
       boxxyyaml=home-files/.config/boxxy/boxxy.yaml
       assertFileExists $boxxyyaml

tests/modules/programs/broot/broot.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ realPkgs, ... }:
 
 {
   programs.broot = {
@@ -6,10 +6,7 @@
     settings.modal = true;
   };
 
-  tests.stubs = {
+  nixpkgs.overlays = [ (self: super: { inherit (realPkgs) broot hjson; }) ];
-    broot = { };
-    hjson = { };
-  };
 
   nmt.script = ''
     assertFileExists home-files/.config/broot/conf.toml

tests/modules/programs/browserpass/browserpass.nix

@@ -1,16 +1,14 @@
-{ config, lib, pkgs, ... }:
+{ realPkgs, ... }:
-
-with lib;
 
 {
-  config = {
   programs.browserpass = {
     enable = true;
-      browsers =
+    browsers = [ "brave" "chrome" "chromium" "firefox" "librewolf" "vivaldi" ];
-        [ "brave" "chrome" "chromium" "firefox" "librewolf" "vivaldi" ];
   };
 
-    nmt.script = if pkgs.stdenv.hostPlatform.isDarwin then ''
+  nixpkgs.overlays = [ (self: super: { inherit (realPkgs) browserpass; }) ];
+
+  nmt.script = if realPkgs.stdenv.hostPlatform.isDarwin then ''
     for dir in "BraveSoftware/Brave-Browser" "Google/Chrome" "Chromium" "Mozilla" "LibreWolf" "Vivaldi"; do
       assertFileExists "home-files/Library/Application Support/$dir/NativeMessagingHosts/com.github.browserpass.native.json"
     done
@@ -31,5 +29,4 @@ with lib;
       assertFileExists "home-files/$dir/native-messaging-hosts/com.github.browserpass.native.json"
     done
   '';
-  };
 }

tests/modules/programs/btop/empty-settings.nix

@@ -1,10 +1,6 @@
-{ ... }:
-
 {
   programs.btop.enable = true;
 
-  test.stubs.btop = { };
-
   nmt.script = ''
     assertPathNotExists home-files/.config/btop
   '';

tests/modules/programs/carapace/bash.nix

@@ -1,5 +1,3 @@
-{ ... }:
-
 {
   programs = {
     carapace.enable = true;
@@ -9,6 +7,6 @@
   nmt.script = ''
     assertFileExists home-files/.bashrc
     assertFileRegex home-files/.bashrc \
-      'source <(/nix/store/.*carapace.*/bin/carapace _carapace bash)'
+      'source <(@carapace@/bin/carapace _carapace bash)'
   '';
 }

tests/modules/programs/carapace/fish.nix

@@ -1,11 +1,13 @@
-{ ... }:
+{ config, lib, realPkgs, ... }:
 
-{
+lib.mkIf config.test.enableBig {
   programs = {
     carapace.enable = true;
     fish.enable = true;
   };
 
+  nixpkgs.overlays = [ (self: super: { inherit (realPkgs) carapace; }) ];
+
   nmt.script = ''
     assertFileExists home-files/.config/fish/config.fish
     assertFileRegex home-files/.config/fish/config.fish \

tests/modules/programs/carapace/zsh.nix

@@ -1,5 +1,3 @@
-{ ... }:
-
 {
   programs = {
     carapace.enable = true;
@@ -9,6 +7,6 @@
   nmt.script = ''
     assertFileExists home-files/.zshrc
     assertFileRegex home-files/.zshrc \
-      'source <(/nix/store/.*carapace.*/bin/carapace _carapace zsh)'
+      'source <(@carapace@/bin/carapace _carapace zsh)'
   '';
 }

tests/modules/programs/cmus/cmus.nix

@@ -1,5 +1,3 @@
-{ ... }:
-
 {
   programs.cmus = {
     enable = true;
@@ -7,8 +5,6 @@
     extraConfig = "test";
   };
 
-  test.stubs.cmus = { };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/cmus/rc \

tests/modules/programs/comodoro/comodoro.nix

@@ -1,5 +1,3 @@
-{ ... }:
-
 {
   programs.comodoro = {
     enable = true;
@@ -26,8 +24,6 @@
     };
   };
 
-  test.stubs.comodoro = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/comodoro/config.toml
     assertFileContent home-files/.config/comodoro/config.toml ${./expected.toml}

tests/modules/programs/direnv/bash.nix

@@ -1,9 +1,4 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   programs.bash.enable = true;
   programs.direnv.enable = true;
 
@@ -11,7 +6,6 @@ with lib;
     assertFileExists home-files/.bashrc
     assertFileRegex \
       home-files/.bashrc \
-        'eval "\$(/nix/store/.*direnv.*/bin/direnv hook bash)"'
+      'eval "\$(@direnv@/bin/direnv hook bash)"'
   '';
-  };
 }

tests/modules/programs/direnv/nix-direnv.nix

@@ -1,16 +1,14 @@
-{ config, lib, pkgs, ... }:
+{ realPkgs, ... }:
-
-with lib;
 
 {
-  config = {
   programs.bash.enable = true;
   programs.direnv.enable = true;
   programs.direnv.nix-direnv.enable = true;
 
+  nixpkgs.overlays = [ (_: _: { inherit (realPkgs) nix-direnv; }) ];
+
   nmt.script = ''
     assertFileExists home-files/.bashrc
     assertFileExists home-files/.config/direnv/lib/hm-nix-direnv.sh
   '';
-  };
 }

tests/modules/programs/direnv/nushell.nix

@@ -4,8 +4,6 @@
   programs.nushell.enable = true;
   programs.direnv.enable = true;
 
-  test.stubs.nushell = { };
-
   nmt.script = let
     configFile = if pkgs.stdenv.isDarwin && !config.xdg.enable then
       "home-files/Library/Application Support/nushell/config.nu"
@@ -13,6 +11,6 @@
       "home-files/.config/nushell/config.nu";
   in ''
     assertFileExists "${configFile}"
-    assertFileRegex "${configFile}" '/nix/store/.*direnv.*/bin/direnv export json'
+    assertFileRegex "${configFile}" '@direnv@/bin/direnv export json'
   '';
 }

tests/modules/programs/direnv/stdlib-and-nix-direnv.nix

@@ -1,15 +1,14 @@
-{ config, lib, pkgs, ... }:
+{ realPkgs, ... }:
-
-with lib;
 
 let expectedContent = "something important";
 in {
-  config = {
   programs.bash.enable = true;
   programs.direnv.enable = true;
   programs.direnv.nix-direnv.enable = true;
   programs.direnv.stdlib = expectedContent;
 
+  nixpkgs.overlays = [ (_: _: { inherit (realPkgs) nix-direnv; }) ];
+
   nmt.script = ''
     assertFileExists home-files/.bashrc
     assertFileExists home-files/.config/direnv/lib/hm-nix-direnv.sh
@@ -17,5 +16,4 @@ in {
       home-files/.config/direnv/direnvrc \
       '${expectedContent}'
   '';
-  };
 }

tests/modules/programs/direnv/stdlib.nix

@@ -1,10 +1,5 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 let expectedContent = "something important";
 in {
-  config = {
   programs.bash.enable = true;
   programs.direnv.enable = true;
   programs.direnv.stdlib = expectedContent;
@@ -16,5 +11,4 @@ in {
       home-files/.config/direnv/direnvrc \
       '${expectedContent}'
   '';
-  };
 }

tests/modules/programs/fastfetch/basic-configuration.nix

@@ -29,8 +29,6 @@
     };
   };
 
-  test.stubs.fastfetch = { };
-
   nmt.script = let configFile = "home-files/.config/fastfetch/config.jsonc";
   in ''
     assertFileExists "${configFile}"

tests/modules/programs/fastfetch/default-configuration.nix

@@ -1,8 +1,6 @@
 {
   programs.fastfetch.enable = true;
 
-  test.stubs.fastfetch = { };
-
   nmt.script = ''
     assertPathNotExists "home-files/.config/fastfetch/config.jsonc"
   '';

tests/modules/programs/feh/feh-bindings.nix

@@ -1,7 +1,4 @@
-{ pkgs, ... }:
-
 {
-  config = {
   programs.feh.enable = true;
 
   programs.feh.buttons = {
@@ -17,8 +14,6 @@
     prev_img = [ "h" "Left" ];
   };
 
-    test.stubs.feh = { };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/feh/buttons \
@@ -28,5 +23,4 @@
       home-files/.config/feh/keys \
       ${./feh-bindings-expected-keys}
   '';
-  };
 }

tests/modules/programs/feh/feh-empty-settings.nix

@@ -1,15 +1,9 @@
-{ pkgs, ... }:
-
 {
-  config = {
   programs.feh.enable = true;
 
-    test.stubs.feh = { };
-
   nmt.script = ''
     assertPathNotExists home-files/.config/feh/buttons
     assertPathNotExists home-files/.config/feh/keys
     assertPathNotExists home-files/.config/feh/themes
   '';
-  };
 }

tests/modules/programs/feh/feh-themes.nix

@@ -1,7 +1,4 @@
-{ pkgs, ... }:
-
 {
-  config = {
   programs.feh.enable = true;
 
   programs.feh.themes = {
@@ -21,12 +18,9 @@
     example = [ "--info" "foo bar" ];
   };
 
-    test.stubs.feh = { };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/feh/themes \
       ${./feh-themes-expected}
   '';
-  };
 }

tests/modules/programs/firefox/final-package.nix

@@ -1,19 +1,16 @@
 modulePath:
-{ config, lib, pkgs, ... }:
+{ config, lib, realPkgs, ... }:
 
 let
 
   cfg = lib.getAttrFromPath modulePath config;
 
-  firefoxMockOverlay = import ./setup-firefox-mock-overlay.nix modulePath;
+in lib.mkIf config.test.enableBig
-
+(lib.setAttrByPath modulePath { enable = true; } // {
-in {
-  imports = [ firefoxMockOverlay ];
-
-  config = lib.mkIf config.test.enableBig
-    (lib.setAttrByPath modulePath { enable = true; } // {
   home.stateVersion = "19.09";
 
+  _module.args.pkgs = lib.mkForce realPkgs;
+
   nmt.script = ''
     package=${cfg.package}
     finalPackage=${cfg.finalPackage}
@@ -21,5 +18,4 @@ in {
       fail "Expected finalPackage ($finalPackage) to equal package ($package)"
     fi
   '';
-    });
+})
-}

tests/modules/programs/firefox/setup-firefox-mock-overlay.nix

@@ -1,30 +1,36 @@
 modulePath:
-{ config, lib, pkgs, ... }:
+{ config, lib, realPkgs, ... }:
-
-with lib;
 
 let
 
-  cfg = getAttrFromPath modulePath config;
+  cfg = lib.getAttrFromPath modulePath config;
 
 in {
-  nixpkgs.overlays = [
+  test.stubs = let unwrappedName = "${cfg.wrappedPackageName}-unwrapped";
-    (self: super: {
+  in {
-      "${cfg.wrappedPackageName}-unwrapped" =
+    "${unwrappedName}" = {
-        pkgs.runCommandLocal "${cfg.wrappedPackageName}-0" {
+      name = unwrappedName;
+      extraAttrs = {
+        binaryName = cfg.wrappedPackageName;
+        gtk3 = null;
         meta.description = "I pretend to be ${cfg.name}";
-          passthru.gtk3 = null;
+      };
-        } ''
+      outPath = null;
+      buildScript = ''
+        echo BUILD
         mkdir -p "$out"/{bin,lib}
         touch "$out/bin/${cfg.wrappedPackageName}"
         chmod 755 "$out/bin/${cfg.wrappedPackageName}"
       '';
+    };
 
-      chrome-gnome-shell =
+    chrome-gnome-shell = {
-        pkgs.runCommandLocal "dummy-chrome-gnome-shell" { } ''
+      buildScript = ''
         mkdir -p $out/lib/mozilla/native-messaging-hosts
         touch $out/lib/mozilla/native-messaging-hosts/dummy
       '';
-    })
+    };
-  ];
+  };
+
+  nixpkgs.overlays = [ (_: _: { inherit (realPkgs) mozlz4a; }) ];
 }

tests/modules/programs/foot/empty-settings.nix

@@ -1,15 +1,7 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
-  config = {
   programs.foot.enable = true;
 
-    test.stubs.foot = { };
-
   nmt.script = ''
     assertPathNotExists home-files/.config/foot
   '';
-  };
 }

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

@@ -1,9 +1,6 @@
-{ config, lib, pkgs, ... }:
+{ config, ... }:
-
-with lib;
 
 {
-  config = {
   programs.foot = {
     enable = true;
     package = config.lib.test.mkStubPackage { };
@@ -25,5 +22,4 @@ with lib;
       home-files/.config/foot/foot.ini \
       ${./example-settings-expected.ini}
   '';
-  };
 }

tests/modules/programs/foot/systemd-user-service.nix

@@ -1,9 +1,5 @@
-{ config, lib, pkgs, ... }:
-
 {
-  config = {
   programs.foot = {
-      package = config.lib.test.mkStubPackage { outPath = "@foot@"; };
     enable = true;
     server.enable = true;
   };
@@ -15,5 +11,4 @@
       home-files/.config/systemd/user/foot.service \
       ${./systemd-user-service-expected.service}
   '';
-  };
 }

tests/modules/programs/freetube/basic-configuration.nix

@@ -1,5 +1,3 @@
-{ config, pkgs, ... }:
-
 {
   programs.freetube = {
     enable = true;
@@ -17,8 +15,6 @@
     };
   };
 
-  test.stubs.freetube = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/FreeTube/hm_settings.db
     assertFileContent home-files/.config/FreeTube/hm_settings.db \

tests/modules/programs/fuzzel/empty-settings.nix

@@ -1,10 +1,6 @@
-{ ... }:
-
 {
   programs.fuzzel.enable = true;
 
-  test.stubs.fuzzel = { };
-
   nmt.script = ''
     assertPathNotExists home-files/.config/fuzzel
   '';

tests/modules/programs/gallery-dl/gallery-dl.nix

@@ -12,8 +12,6 @@
     };
   };
 
-  test.stubs.gallery-dl = { };
-
   nmt.script = ''
     assertFileContent home-files/.config/gallery-dl/config.json \
     ${builtins.toFile "gallery-dl-expected-settings.json" ''

tests/modules/programs/gh-dash/config.nix

@@ -1,5 +1,3 @@
-{ ... }:
-
 {
   programs.gh-dash = {
     enable = true;
@@ -11,8 +9,6 @@
     };
   };
 
-  test.stubs.gh = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/gh-dash/config.yml
     assertFileContent home-files/.config/gh-dash/config.yml ${

tests/modules/programs/gh/config-file.nix

@@ -1,15 +1,10 @@
-{ config, lib, pkgs, ... }:
-
 {
-  config = {
   programs.gh = {
     enable = true;
     settings.aliases = { co = "pr checkout"; };
     settings.editor = "vim";
   };
 
-    test.stubs.gh = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/gh/config.yml
     assertFileContent home-files/.config/gh/config.yml ${
@@ -22,5 +17,4 @@
       ''
     }
   '';
-  };
 }

tests/modules/programs/gh/credential-helper.nix

@@ -1,5 +1,3 @@
-{ config, lib, pkgs, ... }:
-
 {
   programs.gh = {
     enable = true;
@@ -11,8 +9,6 @@
 
   programs.git.enable = true;
 
-  test.stubs.gh = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/git/config
     assertFileContent home-files/.config/git/config \

tests/modules/programs/gh/extensions.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   programs.gh = {
@@ -7,7 +7,6 @@
   };
 
   test.stubs = {
-    gh = { };
     gh-eco = {
       name = "gh-eco";
       buildScript = ''

tests/modules/programs/gh/warnings.nix

@@ -1,15 +1,12 @@
-{ config, options, lib, pkgs, ... }:
+{ options, lib, ... }:
 
 {
-  config = {
   programs.gh = {
     enable = true;
     aliases = { co = "pr checkout"; };
     editor = "vim";
   };
 
-    test.stubs.gh = { };
-
   test.asserts.warnings.expected = [
     "The option `programs.gh.editor' defined in ${
       lib.showFiles options.programs.gh.editor.files
@@ -32,5 +29,4 @@
       ''
     }
   '';
-  };
 }

tests/modules/programs/ghostty/empty-settings.nix

@@ -1,6 +1,6 @@
 {
   programs.ghostty.enable = true;
-  test.stubs.ghostty = { };
+
   nmt.script = ''
     assertPathNotExists home-files/.config/ghostty/config
   '';

tests/modules/programs/ghostty/example-theme.nix

@@ -1,7 +1,6 @@
-{ config, ... }: {
+{
   programs.ghostty = {
     enable = true;
-    package = config.lib.test.mkStubPackage { };
 
     themes = {
       catppuccin-mocha = {

tests/modules/programs/git-cliff/example-settings.nix

@@ -1,7 +1,3 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
 {
   programs.git-cliff = {
     enable = true;
@@ -13,8 +9,6 @@ with lib;
     };
   };
 
-  test.stubs.git-cliff = { };
-
   nmt.script = ''
     assertFileContent \
       home-files/.config/git-cliff/cliff.toml \

tests/modules/programs/git-credential-oauth/basic.nix

@@ -1,12 +1,10 @@
-{ config, pkgs, ... }:
+{ config, ... }:
 
 {
   programs.git-credential-oauth = { enable = true; };
 
   programs.git = { enable = true; };
 
-  test.stubs.git-credential-oauth = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/git/config
     assertFileContains \

tests/modules/programs/git-credential-oauth/extra-flags.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ config, ... }:
 
 {
   programs.git-credential-oauth = {
@@ -8,8 +8,6 @@
 
   programs.git = { enable = true; };
 
-  test.stubs.git-credential-oauth = { };
-
   nmt.script = ''
     assertFileExists home-files/.config/git/config
     assertFileContains \

tests/modules/programs/git/git-with-email.nix

@@ -1,16 +1,13 @@
-{ config, lib, pkgs, ... }:
+{ realPkgs, ... }:
-
-with lib;
 
 {
   imports = [ ../../accounts/email-test-accounts.nix ];
 
-  config = {
   accounts.email.accounts.hm-account.smtp.tls.certificatesFile =
     "/etc/test/certificates.crt";
+
   programs.git = {
     enable = true;
-      package = pkgs.gitMinimal;
     userEmail = "hm@example.com";
     userName = "H. M. Test";
   };
@@ -20,7 +17,7 @@ with lib;
   nmt.script = ''
     function assertGitConfig() {
       local value
-        value=$(${pkgs.gitMinimal}/bin/git config \
+      value=$(${realPkgs.gitMinimal}/bin/git config \
         --file $TESTED/home-files/.config/git/config \
         --get $1)
       if [[ $value != $2 ]]; then
@@ -36,5 +33,4 @@ with lib;
     assertGitConfig "sendemail.hm@example.com.from" "H. M. Test <hm@example.com>"
     assertGitConfig "sendemail.hm-account.from" "H. M. Test Jr. <hm@example.org>"
   '';
-  };
 }

tests/modules/programs/git/git-with-hooks.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ realPkgs, ... }:
 
 {
   programs.git = {
@@ -8,7 +8,7 @@
 
   nmt.script = ''
     function getGitConfig() {
-      ${pkgs.gitMinimal}/bin/git config \
+      ${realPkgs.gitMinimal}/bin/git config \
         --file $TESTED/home-files/.config/git/config \
         --get $1
     }

tests/modules/programs/git/git-with-msmtp.nix

@@ -1,28 +1,22 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, realPkgs, ... }:
-
-with lib;
 
 {
   imports = [ ../../accounts/email-test-accounts.nix ];
 
-  config = {
   accounts.email.accounts."hm@example.com".msmtp.enable = true;
 
   programs.git = {
     enable = true;
-      package = pkgs.gitMinimal;
     userEmail = "hm@example.com";
     userName = "H. M. Test";
   };
 
   home.stateVersion = "20.09";
 
-    test.stubs.msmtp = { };
-
   nmt.script = ''
     function assertGitConfig() {
       local value
-        value=$(${pkgs.gitMinimal}/bin/git config \
+      value=$(${realPkgs.gitMinimal}/bin/git config \
         --file $TESTED/home-files/.config/git/config \
         --get $1)
       if [[ $value != $2 ]]; then
@@ -39,5 +33,4 @@ with lib;
     assertGitConfig "sendemail.hm@example.com.smtpServer" "${pkgs.msmtp}/bin/msmtp"
     assertGitConfig "sendemail.hm@example.com.envelopeSender" "auto"
   '';
-  };
 }