4 files changed, 174 insertions, 0 deletions
diff --git a/test/misc/test-custom-deps.el b/test/misc/test-custom-deps.el
new file mode 100644
index 00000000000..f072adddcb0
--- /dev/null
+++ b/test/misc/test-custom-deps.el
@@ -0,0 +1,42 @@
+;;; test-custom-deps.el --- Test custom deps  -*- lexical-binding:t -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; The command `cus-test-deps' loads all (!) custom dependencies and
+;; reports about load errors.
+
+;;; Code:
+
+(require 'ert)
+
+(defconst custom-test-admin-cus-test
+  (expand-file-name "admin/cus-test.el" source-directory))
+
+(declare-function cus-test-deps custom-test-admin-cus-test)
+(defvar cus-test-deps-errors)  ; from admin/cus-tests.el
+
+(ert-deftest test-custom-deps ()
+  :tags '(:expensive-test)
+  (skip-unless (file-readable-p custom-test-admin-cus-test))
+  (load custom-test-admin-cus-test)
+  (cus-test-deps)
+  (should-not cus-test-deps-errors))
+
+;;; test-custom-deps.el ends here
diff --git a/test/misc/test-custom-libs.el b/test/misc/test-custom-libs.el
new file mode 100644
index 00000000000..cc2be99dea8
--- /dev/null
+++ b/test/misc/test-custom-libs.el
@@ -0,0 +1,48 @@
+;;; test-custom-libs.el --- Test custom loads  -*- lexical-binding:t -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This file runs for all libraries with autoloads separate emacs
+;; processes of the form "emacs -batch -l LIB".
+
+;;; Code:
+
+(require 'ert)
+
+(defconst custom-test-admin-cus-test
+  (expand-file-name "admin/cus-test.el" source-directory))
+
+(declare-function cus-test-libs custom-test-admin-cus-test)
+(defvar cus-test-libs-errors)  ; from admin/cus-tests.el
+
+;; FIXME: Currently fails for:
+;;        - lisp/term/ns-win.el
+;;        - lisp/org/org-num.el
+(ert-deftest test-custom-libs ()
+  :tags '(:expensive-test)
+  :expected-result :failed ; FIXME: See above.
+  ;; This test is very slow, and IMO not worth the time it takes.
+  (skip-unless (not (getenv "EMACS_HYDRA_CI")))
+  (skip-unless (file-readable-p custom-test-admin-cus-test))
+  (load custom-test-admin-cus-test)
+  (cus-test-libs t)
+  (should-not cus-test-libs-errors))
+
+;;; test-custom-deps.el ends here
diff --git a/test/misc/test-custom-noloads.el b/test/misc/test-custom-noloads.el
new file mode 100644
index 00000000000..5e95e7d7740
--- /dev/null
+++ b/test/misc/test-custom-noloads.el
@@ -0,0 +1,45 @@
+;;; test-custom-noloads.el --- Test custom noloads  -*- lexical-binding:t -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; The command `cus-test-noloads' returns a list of variables which
+;; are somewhere declared as custom options, but not loaded by
+;; `custom-load-symbol'.
+
+;;; Code:
+
+(require 'ert)
+
+(defconst custom-test-admin-cus-test
+  (expand-file-name "admin/cus-test.el" source-directory))
+
+(declare-function cus-test-noloads custom-test-admin-cus-test)
+(defvar cus-test-vars-not-cus-loaded)  ; from admin/cus-tests.el
+
+;; FIXME: Multiple failures here.
+(ert-deftest custom-test-load ()
+  :tags '(:expensive-test :unstable)
+  :expected-result :failed ; FIXME: See above.
+  (skip-unless (file-readable-p custom-test-admin-cus-test))
+  (load custom-test-admin-cus-test)
+  (cus-test-noloads)
+  (should-not cus-test-vars-not-cus-loaded))
+
+;;; test-custom-noloads.el ends here
diff --git a/test/misc/test-custom-opts.el b/test/misc/test-custom-opts.el
new file mode 100644
index 00000000000..fa6b9e66aef
--- /dev/null
+++ b/test/misc/test-custom-opts.el
@@ -0,0 +1,39 @@
+;;; test-custom-opts.el --- Test custom opts  -*- lexical-binding:t -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; The command `cus-test-opts' tests many (all?) custom options.
+
+;;; Code:
+
+(require 'ert)
+
+(defconst custom-test-admin-cus-test
+  (expand-file-name "admin/cus-test.el" source-directory))
+
+(declare-function cus-test-opts custom-test-admin-cus-test)
+
+(ert-deftest check-for-wrong-custom-opts ()
+  :tags '(:expensive-test)
+  (skip-unless (file-readable-p custom-test-admin-cus-test))
+  (load custom-test-admin-cus-test)
+  (should (null (cus-test-opts t))))
+
+;;; test-custom-opts.el ends here