Expand and improve electric-pair-mode and Python testing (bug#49518)

In python-tests.el, the triple-quote pairing tests are passing
incorrectly, i.e. the auto-pairing functionality they purport to guard
isn't really working for users trying it interactively.  Added a new
failing test, soon to be fixed.

In electric-tests.el, added tests for Python, too.

* test/lisp/electric-tests.el (define-electric-pair-test): Also run
main tests for python-mode.  (pair-some-quotes-skip-others): Test
another slightly different pairing.

* test/lisp/progmodes/python-tests.el
(python-triple-double-quote-pairing): Rename from
python-triple-quote-pairing.
(python-triple-single-quote-pairing): New test.

1 files changed, 28 insertions, 1 deletions

diff --git a/test/lisp/progmodes/python-tests.el b/test/lisp/progmodes/python-tests.el
index 1af579bb7a4..afdae4c75c6 100644
--- a/test/lisp/progmodes/python-tests.el
+++ b/test/lisp/progmodes/python-tests.el
@@ -5283,7 +5283,7 @@ urlpatterns = patterns('',
            (should (= (current-indentation) 23))))
       (or eim (electric-indent-mode -1)))))
 
-(ert-deftest python-triple-quote-pairing ()
+(ert-deftest python-triple-double-quote-pairing ()
   (let ((epm electric-pair-mode))
     (unwind-protect
         (progn
@@ -5310,6 +5310,33 @@ urlpatterns = patterns('',
                             "\"\n\"\"\"\n"))))
       (or epm (electric-pair-mode -1)))))
 
+(ert-deftest python-triple-single-quote-pairing ()
+  (let ((epm electric-pair-mode))
+    (unwind-protect
+        (progn
+          (python-tests-with-temp-buffer
+           "''\n"
+           (or epm (electric-pair-mode 1))
+           (goto-char (1- (point-max)))
+           (python-tests-self-insert ?')
+           (should (string= (buffer-string)
+                            "''''''\n"))
+           (should (= (point) 4)))
+          (python-tests-with-temp-buffer
+           "\n"
+           (python-tests-self-insert (list ?' ?' ?'))
+           (should (string= (buffer-string)
+                            "''''''\n"))
+           (should (= (point) 4)))
+          (python-tests-with-temp-buffer
+           "'\n''\n"
+           (goto-char (1- (point-max)))
+           (python-tests-self-insert ?')
+           (should (= (point) (1- (point-max))))
+           (should (string= (buffer-string)
+                            "'\n'''\n"))))
+      (or epm (electric-pair-mode -1)))))
+
 
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