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;;; memory-report-tests.el --- tests for memory-report.el -*- lexical-binding: t -*-
;; Copyright (C) 2020-2021 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/>.
(require 'ert)
(require 'memory-report)
(defun setup-memory-report-tests ()
;; Set the sizes on things based on a 64-bit architecture. (We're
;; hard-coding this to be able to write simple tests that'll work on
;; all architectures.)
(memory-report--set-size
'((conses 16 499173 99889)
(symbols 48 22244 3)
(strings 32 92719 4559)
(string-bytes 1 40402011)
(vectors 16 31919)
(vector-slots 8 385148 149240)
(floats 8 434 4519)
(intervals 56 24499 997)
(buffers 984 33))))
(ert-deftest memory-report-sizes ()
(setup-memory-report-tests)
(should (equal (memory-report-object-size (cons nil nil)) 16))
(should (equal (memory-report-object-size (cons 1 2)) 16))
(should (equal (memory-report-object-size (list 1 2)) 32))
(should (equal (memory-report-object-size (list 1)) 16))
(should (equal (memory-report-object-size (list 'foo)) 16))
(should (equal (memory-report-object-size (vector 1 2 3)) 64))
(should (equal (memory-report-object-size (vector 1 2 3 4)) 80))
(should (equal (memory-report-object-size "") 32))
(should (equal (memory-report-object-size "a") 33))
(should (equal (memory-report-object-size (propertize "a" 'face 'foo))
81)))
(ert-deftest memory-report-sizes-vectors ()
(should (= (memory-report--object-size
(make-hash-table :test #'eq)
["long string that should be at least 40 bytes"])
108))
(let ((string "long string that should be at least 40 bytes"))
(should (= (memory-report--object-size
(make-hash-table :test #'eq)
(vector string))
108))
(should (= (memory-report--object-size
(make-hash-table :test #'eq)
(vector string string))
124))))
(provide 'memory-report-tests)
;;; memory-report-tests.el ends here
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