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comparison tests/automated/hash-table-tests.el @ 428:3ecd8885ac67 r21-2-22

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Import from CVS: tag r21-2-22
author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
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427:0a0253eac470 428:3ecd8885ac67
1 ;; Copyright (C) 1998 Free Software Foundation, Inc.
2
3 ;; Author: Martin Buchholz <martin@xemacs.org>
4 ;; Maintainer: Martin Buchholz <martin@xemacs.org>
5 ;; Created: 1998
6 ;; Keywords: tests, database
7
8 ;; This file is part of XEmacs.
9
10 ;; XEmacs is free software; you can redistribute it and/or modify it
11 ;; under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
14
15 ;; XEmacs is distributed in the hope that it will be useful, but
16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ;; General Public License for more details.
19
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23 ;; 02111-1307, USA.
24
25 ;;; Synched up with: Not in FSF.
26
27 ;;; Commentary:
28
29 ;;; Test hash tables implementation
30 ;;; See test-harness.el
31
32 (condition-case err
33 (require 'test-harness)
34 (file-error
35 (when (and (boundp 'load-file-name) (stringp load-file-name))
36 (push (file-name-directory load-file-name) load-path)
37 (require 'test-harness))))
38
39 ;; Test all combinations of make-hash-table keywords
40 (dolist (test '(eq eql equal))
41 (dolist (size '(0 1 100))
42 (dolist (rehash-size '(1.1 9.9))
43 (dolist (rehash-threshold '(0.2 .9))
44 (dolist (weakness '(nil t key value))
45 (dolist (data '(() (1 2) (1 2 3 4)))
46 (let ((ht (make-hash-table
47 :test test
48 :size size
49 :rehash-size rehash-size
50 :rehash-threshold rehash-threshold
51 :weakness weakness)))
52 (Assert (equal ht (car (let ((print-readably t))
53 (read-from-string (prin1-to-string ht))))))
54 (Assert (eq test (hash-table-test ht)))
55 (Assert (<= size (hash-table-size ht)))
56 (Assert (eql rehash-size (hash-table-rehash-size ht)))
57 (Assert (eql rehash-threshold (hash-table-rehash-threshold ht)))
58 (Assert (eq weakness (hash-table-weakness ht))))))))))
59
60 (loop for (fun weakness) in '((make-hashtable nil)
61 (make-weak-hashtable t)
62 (make-key-weak-hashtable key)
63 (make-value-weak-hashtable value))
64 do (Assert (eq weakness (hash-table-weakness (funcall fun 10)))))
65
66 (loop for (type weakness) in '((non-weak nil)
67 (weak t)
68 (key-weak key)
69 (value-weak value))
70 do (Assert (equal (make-hash-table :type type)
71 (make-hash-table :weakness weakness))))
72
73 (Assert (not (equal (make-hash-table :weakness nil)
74 (make-hash-table :weakness t))))
75
76 (let ((ht (make-hash-table :size 20 :rehash-threshold .75 :test 'eq))
77 (size 80))
78 (Assert (hashtablep ht))
79 (Assert (hash-table-p ht))
80 (Assert (eq 'eq (hash-table-test ht)))
81 (Assert (eq 'non-weak (hash-table-type ht)))
82 (Assert (eq 'non-weak (hashtable-type ht)))
83 (Assert (eq 'nil (hash-table-weakness ht)))
84 (dotimes (j size)
85 (puthash j (- j) ht)
86 (Assert (eq (gethash j ht) (- j)))
87 (Assert (= (hash-table-count ht) (1+ j)))
88 (Assert (= (hashtable-fullness ht) (hash-table-count ht)))
89 (puthash j j ht)
90 (Assert (eq (gethash j ht 'foo) j))
91 (Assert (= (hash-table-count ht) (1+ j)))
92 (setf (gethash j ht) (- j))
93 (Assert (eq (gethash j ht) (- j)))
94 (Assert (= (hash-table-count ht) (1+ j))))
95
96 (clrhash ht)
97 (Assert (= 0 (hash-table-count ht)))
98
99 (dotimes (j size)
100 (puthash j (- j) ht)
101 (Assert (eq (gethash j ht) (- j)))
102 (Assert (= (hash-table-count ht) (1+ j))))
103
104 (let ((k-sum 0) (v-sum 0))
105 (maphash #'(lambda (k v) (incf k-sum k) (incf v-sum v)) ht)
106 (print k-sum)
107 (print v-sum)
108 (Assert (= k-sum (/ (* size (- size 1)) 2)))
109 (Assert (= v-sum (- k-sum))))
110
111 (let ((count size))
112 (dotimes (j size)
113 (remhash j ht)
114 (Assert (eq (gethash j ht) nil))
115 (Assert (eq (gethash j ht 'foo) 'foo))
116 (Assert (= (hash-table-count ht) (decf count))))))
117
118 (let ((ht (make-hash-table :size 30 :rehash-threshold .25 :test 'equal))
119 (size 70))
120 (Assert (hashtablep ht))
121 (Assert (hash-table-p ht))
122 (Assert (>= (hash-table-size ht) (/ 30 .25)))
123 (Assert (eql .25 (hash-table-rehash-threshold ht)))
124 (Assert (eq 'equal (hash-table-test ht)))
125 (Assert (eq (hash-table-test ht) (hashtable-test-function ht)))
126 (Assert (eq 'non-weak (hash-table-type ht)))
127 (dotimes (j size)
128 (puthash (int-to-string j) (- j) ht)
129 (Assert (eq (gethash (int-to-string j) ht) (- j)))
130 (Assert (= (hash-table-count ht) (1+ j)))
131 (puthash (int-to-string j) j ht)
132 (Assert (eq (gethash (int-to-string j) ht 'foo) j))
133 (Assert (= (hash-table-count ht) (1+ j))))
134
135 (clrhash ht)
136 (Assert (= 0 (hash-table-count ht)))
137 (Assert (equal ht (copy-hash-table ht)))
138
139 (dotimes (j size)
140 (setf (gethash (int-to-string j) ht) (- j))
141 (Assert (eq (gethash (int-to-string j) ht) (- j)))
142 (Assert (= (hash-table-count ht) (1+ j))))
143
144 (let ((count size))
145 (dotimes (j size)
146 (remhash (int-to-string j) ht)
147 (Assert (eq (gethash (int-to-string j) ht) nil))
148 (Assert (eq (gethash (int-to-string j) ht 'foo) 'foo))
149 (Assert (= (hash-table-count ht) (decf count))))))
150
151 (let ((iterations 5) (one 1.0) (two 2.0))
152 (flet ((check-copy
153 (ht)
154 (let ((copy-of-ht (copy-hash-table ht)))
155 (Assert (equal ht copy-of-ht))
156 (Assert (not (eq ht copy-of-ht)))
157 (Assert (eq (hash-table-count ht) (hash-table-count copy-of-ht)))
158 (Assert (eq (hash-table-type ht) (hash-table-type copy-of-ht)))
159 (Assert (eq (hash-table-size ht) (hash-table-size copy-of-ht)))
160 (Assert (eql (hash-table-rehash-size ht) (hash-table-rehash-size copy-of-ht)))
161 (Assert (eql (hash-table-rehash-threshold ht) (hash-table-rehash-threshold copy-of-ht))))))
162
163 (let ((ht (make-hash-table :size 100 :rehash-threshold .6 :test 'eq)))
164 (dotimes (j iterations)
165 (puthash (+ one 0.0) t ht)
166 (puthash (+ two 0.0) t ht)
167 (puthash (concat "1" "2") t ht)
168 (puthash (concat "3" "4") t ht))
169 (Assert (eq (hashtable-test-function ht) 'eq))
170 (Assert (eq (hash-table-test ht) 'eq))
171 (Assert (= (* iterations 4) (hash-table-count ht)))
172 (Assert (eq nil (gethash 1.0 ht)))
173 (Assert (eq nil (gethash "12" ht)))
174 (check-copy ht)
175 )
176
177 (let ((ht (make-hash-table :size 100 :rehash-threshold .6 :test 'eql)))
178 (dotimes (j iterations)
179 (puthash (+ one 0.0) t ht)
180 (puthash (+ two 0.0) t ht)
181 (puthash (concat "1" "2") t ht)
182 (puthash (concat "3" "4") t ht))
183 (Assert (eq (hashtable-test-function ht) 'eql))
184 (Assert (eq (hash-table-test ht) 'eql))
185 (Assert (= (+ 2 (* 2 iterations)) (hash-table-count ht)))
186 (Assert (eq t (gethash 1.0 ht)))
187 (Assert (eq nil (gethash "12" ht)))
188 (check-copy ht)
189 )
190
191 (let ((ht (make-hash-table :size 100 :rehash-threshold .6 :test 'equal)))
192 (dotimes (j iterations)
193 (puthash (+ one 0.0) t ht)
194 (puthash (+ two 0.0) t ht)
195 (puthash (concat "1" "2") t ht)
196 (puthash (concat "3" "4") t ht))
197 (Assert (eq (hashtable-test-function ht) 'equal))
198 (Assert (eq (hash-table-test ht) 'equal))
199 (Assert (= 4 (hash-table-count ht)))
200 (Assert (eq t (gethash 1.0 ht)))
201 (Assert (eq t (gethash "12" ht)))
202 (check-copy ht)
203 )
204
205 ))
206
207 ;; Test that weak hash-tables are properly handled
208 (loop for (weakness expected-count expected-k-sum expected-v-sum) in
209 '((nil 6 38 25)
210 (t 3 6 9)
211 (key 4 38 9)
212 (value 4 6 25))
213 do
214 (let* ((ht (make-hash-table :weakness weakness))
215 (my-obj (cons ht ht)))
216 (garbage-collect)
217 (puthash my-obj 1 ht)
218 (puthash 2 my-obj ht)
219 (puthash 4 8 ht)
220 (puthash (cons ht ht) 16 ht)
221 (puthash 32 (cons ht ht) ht)
222 (puthash (cons ht ht) (cons ht ht) ht)
223 (let ((k-sum 0) (v-sum 0))
224 (maphash #'(lambda (k v)
225 (when (integerp k) (incf k-sum k))
226 (when (integerp v) (incf v-sum v)))
227 ht)
228 (Assert (eq 38 k-sum))
229 (Assert (eq 25 v-sum)))
230 (Assert (eq 6 (hash-table-count ht)))
231 (garbage-collect)
232 (Assert (eq expected-count (hash-table-count ht)))
233 (let ((k-sum 0) (v-sum 0))
234 (maphash #'(lambda (k v)
235 (when (integerp k) (incf k-sum k))
236 (when (integerp v) (incf v-sum v)))
237 ht)
238 (Assert (eq expected-k-sum k-sum))
239 (Assert (eq expected-v-sum v-sum)))))
240
241 ;;; Test the ability to puthash and remhash the current elt of a maphash
242 (let ((ht (make-hash-table :test 'eql)))
243 (dotimes (j 100) (setf (gethash j ht) (- j)))
244 (maphash #'(lambda (k v)
245 (if (oddp k) (remhash k ht) (puthash k (- v) ht)))
246 ht)
247 (let ((k-sum 0) (v-sum 0))
248 (maphash #'(lambda (k v) (incf k-sum k) (incf v-sum v)) ht)
249 (Assert (= (* 50 49) k-sum))
250 (Assert (= v-sum k-sum))))
251
252 ;;; Test reading and printing of hash-table objects
253 (let ((h1 #s(hashtable weakness t rehash-size 3.0 rehash-threshold .2 test eq data (1 2 3 4)))
254 (h2 #s(hash-table weakness t rehash-size 3.0 rehash-threshold .2 test eq data (1 2 3 4)))
255 (h3 (make-hash-table :weakness t :rehash-size 3.0 :rehash-threshold .2 :test 'eq)))
256 (Assert (equal h1 h2))
257 (Assert (not (equal h1 h3)))
258 (puthash 1 2 h3)
259 (puthash 3 4 h3)
260 (Assert (equal h1 h3)))
261
262 ;;; Testing equality of hash tables
263 (Assert (equal (make-hash-table :test 'eql :size 300 :rehash-threshold .9 :rehash-size 3.0)
264 (make-hash-table :test 'eql)))
265 (Assert (not (equal (make-hash-table :test 'eq)
266 (make-hash-table :test 'equal))))
267 (let ((h1 (make-hash-table))
268 (h2 (make-hash-table)))
269 (Assert (equal h1 h2))
270 (Assert (not (eq h1 h2)))
271 (puthash 1 2 h1)
272 (Assert (not (equal h1 h2)))
273 (puthash 1 2 h2)
274 (Assert (equal h1 h2))
275 (puthash 1 3 h2)
276 (Assert (not (equal h1 h2)))
277 (clrhash h1)
278 (Assert (not (equal h1 h2)))
279 (clrhash h2)
280 (Assert (equal h1 h2))
281 )
282
283 ;;; Test sxhash
284 (Assert (= (sxhash "foo") (sxhash "foo")))
285 (Assert (= (sxhash '(1 2 3)) (sxhash '(1 2 3))))