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