home-manager/tests/modules/misc/qt/qt-platform-theme-gtk3.nix

{
  config = {
    qt = {
      enable = true;
      platformTheme.name = "gtk3";
    };

    nmt.script = ''
      assertFileRegex home-path/etc/profile.d/hm-session-vars.sh \
        'QT_QPA_PLATFORMTHEME="gtk3"'
      assertFileRegex home-path/etc/profile.d/hm-session-vars.sh \
        'QT_PLUGIN_PATH'
      assertFileRegex home-path/etc/profile.d/hm-session-vars.sh \
        'QML2_IMPORT_PATH'
    '';
  };
}