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rswitcher-test.el
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rswitcher-test.el
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(require 'rswitcher)
(require 'ert)
(ert-deftest rswitcher-test-delete-head ()
"rswitcher--delete removes head correctly"
(let ((s (rswitcher-make)))
(rswitcher-add s 'c)
(rswitcher-add s 'b)
(rswitcher-add s 'a)
(should (equal '(a b c) (rswitcher--elements s)))
(should (equal 'a (rswitcher-most-recent s)))
(should (equal 'a (rswitcher--delete s 0)))
(should (equal '(b c) (rswitcher--elements s)))
(should (equal 'b (rswitcher-most-recent s))))
(let ((s (rswitcher-make)))
(rswitcher-add s 'a)
(should (equal '(a) (rswitcher--elements s)))
(should (equal 'a (rswitcher--delete s 0)))
(should (equal '() (rswitcher--elements s)))
(should (equal nil (rswitcher-most-recent s)))))
(ert-deftest rswitcher-test-delete-last ()
"rswitcher--delete removes last correctly"
(let ((s (rswitcher-make)))
(rswitcher-add s 'c)
(rswitcher-add s 'b)
(rswitcher-add s 'a)
(should (equal '(a b c) (rswitcher--elements s)))
(should (equal 'a (rswitcher-most-recent s)))
(should (equal 'c (rswitcher--delete s 2)))
(should (equal 'a (rswitcher-most-recent s)))
(should (equal '(a b) (rswitcher--elements s)))))
(ert-deftest rswitcher-test-delete-middle ()
"rswitcher--delete removes middle correctly"
(let ((s (rswitcher-make)))
(rswitcher-add s 'c)
(rswitcher-add s 'b)
(rswitcher-add s 'a)
(should (equal '(a b c) (rswitcher--elements s)))
(should (equal 'a (rswitcher-most-recent s)))
(should (equal 'b (rswitcher--delete s 1)))
(should (equal 'a (rswitcher-most-recent s)))
(should (equal '(a c) (rswitcher--elements s)))))
(ert-deftest rswitcher-test-delete-after-switch ()
(let ((s (rswitcher-make)))
(rswitcher-add s 'c)
(rswitcher-add s 'b)
(rswitcher-add s 'a)
(should (equal 'a (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(rswitcher-switch-partial s)
(should (equal 'c (rswitcher-most-recent s)))
(should (equal '(a b c) (rswitcher--elements s)))
(rswitcher--delete s 2)
(should (equal '(a b) (rswitcher--elements s)))
(should (equal 'a (rswitcher-most-recent s)))))
(ert-deftest rswitcher-test-add-make-most-recent ()
"rswitcher-add makes new element most-recent"
(let ((s (rswitcher-make)))
(rswitcher-add s 'a)
(should (equal (rswitcher-most-recent s) 'a))
(rswitcher-add s 'b)
(should (equal (rswitcher-most-recent s) 'b))))
(ert-deftest rswitcher-test-switch-full ()
"simple scenario for switch-full"
(let ((s (rswitcher-make)))
(rswitcher-add s 'a)
(rswitcher-add s 'b)
(should (equal (rswitcher-most-recent s) 'b))
(rswitcher-switch-full s)
(should (equal (rswitcher-most-recent s) 'a))
(rswitcher-switch-full s)
(should (equal (rswitcher-most-recent s) 'b))
(rswitcher-add s 'c)
(should (equal (rswitcher-most-recent s) 'c))
(rswitcher-switch-full s)
(should (equal (rswitcher-most-recent s) 'b))
(rswitcher-switch-full s)
(should (equal (rswitcher-most-recent s) 'c))
(rswitcher-switch-full s)
(should (equal (rswitcher-most-recent s) 'b))))
(ert-deftest rswitcher-test-switch-partial ()
"simple scenario for switch-partial"
(let ((s (rswitcher-make)))
(rswitcher-add s 'a)
(rswitcher-add s 'b)
(should (equal (rswitcher-most-recent s) 'b))
(rswitcher-switch-full s)
(should (equal (rswitcher-most-recent s) 'a))
(rswitcher-switch-partial s)
(should (equal (rswitcher-most-recent s) 'b))
(rswitcher-switch-partial s)
(should (equal (rswitcher-most-recent s) 'a))))
(ert-deftest rswitcher-test-mixing-partial-and-full-with-2-elts ()
"mixing use of partial and full"
(let ((s (rswitcher-make)))
(rswitcher-add s 'a)
(rswitcher-add s 'b)
(should (equal 'b (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(should (equal 'a (rswitcher-most-recent s)))
(rswitcher-switch-partial s)
(should (equal 'b (rswitcher-most-recent s)))
(rswitcher-switch-partial s)
(should (equal 'a (rswitcher-most-recent s)))
(rswitcher-switch-partial s)
(should (equal 'b (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(should (equal 'a (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(should (equal 'b (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(should (equal 'a (rswitcher-most-recent s)))))
(ert-deftest rswitcher-test-mixing-partial-and-full ()
"mixing use of partial and full"
(let ((s (rswitcher-make)))
(rswitcher-add s 'a)
(rswitcher-add s 'b)
(rswitcher-add s 'c)
(should (equal 'c (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(should (equal 'b (rswitcher-most-recent s)))
(rswitcher-switch-partial s)
(should (equal 'a (rswitcher-most-recent s)))
(rswitcher-switch-partial s)
(should (equal 'c (rswitcher-most-recent s)))
(rswitcher-switch-partial s)
(should (equal 'b (rswitcher-most-recent s)))
(rswitcher-switch-partial s)
(should (equal 'a (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(should (equal 'c (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(should (equal 'a (rswitcher-most-recent s)))
(rswitcher-switch-full s)
(should (equal 'c (rswitcher-most-recent s)))))