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b01818d7 JG |
1 | ;;; arithmetic-flonums.test --- Test suite for R6RS (rnrs arithmetic flonums) |
2 | ||
ff62c168 | 3 | ;; Copyright (C) 2010, 2011 Free Software Foundation, Inc. |
b01818d7 JG |
4 | ;; |
5 | ;; This library is free software; you can redistribute it and/or | |
6 | ;; modify it under the terms of the GNU Lesser General Public | |
7 | ;; License as published by the Free Software Foundation; either | |
8 | ;; version 3 of the License, or (at your option) any later version. | |
9 | ;; | |
10 | ;; This library is distributed in the hope that it will be useful, | |
11 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | ;; Lesser General Public License for more details. | |
14 | ;; | |
15 | ;; You should have received a copy of the GNU Lesser General Public | |
16 | ;; License along with this library; if not, write to the Free Software | |
17 | ;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | \f | |
19 | ||
20 | (define-module (test-suite test-r6rs-arithmetic-flonums) | |
21 | :use-module ((rnrs arithmetic flonums) :version (6)) | |
22 | :use-module ((rnrs conditions) :version (6)) | |
23 | :use-module ((rnrs exceptions) :version (6)) | |
24 | :use-module (test-suite lib)) | |
25 | ||
26 | (define fake-pi 3.14159265) | |
27 | (define (reasonably-close? x y) (< (abs (- x y)) 0.0000001)) | |
28 | ||
29 | (with-test-prefix "flonum?" | |
30 | (pass-if "flonum? is #t on flonum" | |
31 | (flonum? 1.5)) | |
32 | ||
33 | (pass-if "flonum? is #f on non-flonum" | |
34 | (not (flonum? 3)))) | |
35 | ||
36 | (with-test-prefix "real->flonum" | |
37 | (pass-if "simple" | |
38 | (flonum? (real->flonum 3)))) | |
39 | ||
40 | (with-test-prefix "fl=?" | |
41 | (pass-if "fl=? is #t for eqv inputs" | |
42 | (fl=? 3.0 3.0 3.0)) | |
43 | ||
44 | (pass-if "fl=? is #f for non-eqv inputs" | |
45 | (not (fl=? 1.5 0.0 3.0))) | |
46 | ||
47 | (pass-if "+inf.0 is fl= to itself" | |
48 | (fl=? +inf.0 +inf.0)) | |
49 | ||
50 | (pass-if "0.0 and -0.0 are fl=" | |
51 | (fl=? 0.0 -0.0))) | |
52 | ||
53 | (with-test-prefix "fl<?" | |
54 | (pass-if "fl<? is #t for monotonically < inputs" | |
55 | (fl<? 1.0 2.0 3.0)) | |
56 | ||
57 | (pass-if "fl<? is #f for non-monotonically < inputs" | |
58 | (not (fl<? 2.0 2.0 1.4)))) | |
59 | ||
60 | (with-test-prefix "fl<=?" | |
61 | (pass-if "fl<=? is #t for monotonically < or = inputs" | |
62 | (fl<=? 1.0 1.2 1.2)) | |
63 | ||
64 | (pass-if "fl<=? is #f non-monotonically < or = inputs" | |
65 | (not (fl<=? 2.0 1.0 0.9)))) | |
66 | ||
67 | (with-test-prefix "fl>?" | |
68 | (pass-if "fl>? is #t for monotonically > inputs" | |
69 | (fl>? 3.0 2.0 1.0)) | |
70 | ||
71 | (pass-if "fl>? is #f for non-monotonically > inputs" | |
72 | (not (fl>? 1.0 1.0 1.2)))) | |
73 | ||
74 | (with-test-prefix "fl>=?" | |
75 | (pass-if "fl>=? is #t for monotonically > or = inputs" | |
76 | (fl>=? 3.0 2.0 2.0)) | |
77 | ||
78 | (pass-if "fl>=? is #f for non-monotonically > or = inputs" | |
79 | (not (fl>=? 1.0 1.2 1.2)))) | |
80 | ||
81 | (with-test-prefix "flinteger?" | |
82 | (pass-if "flinteger? is #t on integer flomnums" | |
83 | (flinteger? 1.0)) | |
84 | ||
85 | (pass-if "flinteger? is #f on non-integer flonums" | |
86 | (not (flinteger? 1.5)))) | |
87 | ||
88 | (with-test-prefix "flzero?" | |
89 | (pass-if "flzero? is #t for 0.0 and -0.0" | |
90 | (and (flzero? 0.0) (flzero? -0.0))) | |
91 | ||
92 | (pass-if "flzero? is #f for non-zero flonums" | |
93 | (not (flzero? 1.0)))) | |
94 | ||
95 | (with-test-prefix "flpositive?" | |
96 | (pass-if "flpositive? is #t on positive flonum" | |
97 | (flpositive? 1.0)) | |
98 | ||
99 | (pass-if "flpositive? is #f on negative flonum" | |
100 | (not (flpositive? -1.0))) | |
101 | ||
102 | (pass-if "0.0 and -0.0 are not flpositive" | |
103 | (and (not (flpositive? 0.0)) (not (flpositive? -0.0))))) | |
104 | ||
105 | (with-test-prefix "flnegative?" | |
106 | (pass-if "flnegative? is #t on negative flonum" | |
107 | (flnegative? -1.0)) | |
108 | ||
109 | (pass-if "flnegative? is #f on positive flonum" | |
110 | (not (flnegative? 1.0))) | |
111 | ||
112 | (pass-if "0.0 and -0.0 are not flnegative" | |
113 | (and (not (flnegative? 0.0)) (not (flnegative? -0.0))))) | |
114 | ||
115 | (with-test-prefix "flodd?" | |
116 | (pass-if "&assertion raised on non-integer flonum" | |
117 | (guard (condition ((assertion-violation? condition) #t) (else #f)) | |
118 | (begin (flodd? 1.5) #f))) | |
119 | ||
120 | (pass-if "flodd? is #t on odd flonums" | |
121 | (flodd? 3.0)) | |
122 | ||
123 | (pass-if "flodd? is #f on even flonums" | |
124 | (not (flodd? 2.0)))) | |
125 | ||
126 | (with-test-prefix "fleven?" | |
127 | (pass-if "&assertion raised on non-integer flonum" | |
128 | (guard (condition ((assertion-violation? condition) #t) (else #f)) | |
129 | (begin (fleven? 1.5) #f))) | |
130 | ||
131 | (pass-if "fleven? is #t on even flonums" | |
132 | (fleven? 2.0)) | |
133 | ||
134 | (pass-if "fleven? is #f on odd flonums" | |
135 | (not (fleven? 3.0)))) | |
136 | ||
137 | (with-test-prefix "flfinite?" | |
138 | (pass-if "flfinite? is #t on non-infinite flonums" | |
139 | (flfinite? 2.0)) | |
140 | ||
141 | (pass-if "flfinite? is #f on infinities" | |
142 | (and (not (flfinite? +inf.0)) (not (flfinite? -inf.0))))) | |
143 | ||
144 | (with-test-prefix "flinfinite?" | |
145 | (pass-if "flinfinite? is #t on infinities" | |
146 | (and (flinfinite? +inf.0) (flinfinite? -inf.0))) | |
147 | ||
148 | (pass-if "flinfinite? is #f on non-infinite flonums" | |
149 | (not (flinfinite? 2.0)))) | |
150 | ||
151 | (with-test-prefix "flnan?" | |
152 | (pass-if "flnan? is #t on NaN and -NaN" | |
153 | (and (flnan? +nan.0) (flnan? -nan.0))) | |
154 | ||
155 | (pass-if "flnan? is #f on non-NaN values" | |
156 | (not (flnan? 1.5)))) | |
157 | ||
158 | (with-test-prefix "flmax" | |
159 | (pass-if "simple" (fl=? (flmax 1.0 3.0 2.0) 3.0))) | |
160 | ||
161 | (with-test-prefix "flmin" | |
162 | (pass-if "simple" (fl=? (flmin -1.0 0.0 2.0) -1.0))) | |
163 | ||
164 | (with-test-prefix "fl+" | |
165 | (pass-if "simple" (fl=? (fl+ 2.141 1.0 0.1) 3.241))) | |
166 | ||
167 | (with-test-prefix "fl*" | |
168 | (pass-if "simple" (fl=? (fl* 1.0 2.0 3.0 1.5) 9.0))) | |
169 | ||
170 | (with-test-prefix "fl-" | |
171 | (pass-if "unary fl- negates argument" (fl=? (fl- 2.0) -2.0)) | |
172 | ||
173 | (pass-if "simple" (fl=? (fl- 10.5 6.0 0.5) 4.0))) | |
174 | ||
175 | (with-test-prefix "fl/" | |
176 | (pass-if "unary fl/ returns multiplicative inverse" (fl=? (fl/ 10.0) 0.1)) | |
177 | ||
178 | (pass-if "simple" (fl=? (fl/ 10.0 2.0 2.0) 2.5))) | |
179 | ||
180 | (with-test-prefix "flabs" | |
181 | (pass-if "simple" (and (fl=? (flabs -1.0) 1.0) (fl=? (flabs 1.23) 1.23)))) | |
182 | ||
183 | (with-test-prefix "fldiv-and-mod" | |
184 | (pass-if "simple" | |
185 | (call-with-values (lambda () (fldiv-and-mod 5.0 2.0)) | |
186 | (lambda (div mod) (fl=? div 2.0) (fl=? mod 1.0))))) | |
187 | ||
188 | (with-test-prefix "fldiv" | |
189 | (pass-if "simple" (fl=? (fldiv 5.0 2.0) 2.0))) | |
190 | ||
191 | (with-test-prefix "flmod" | |
192 | (pass-if "simple" (fl=? (flmod 5.0 2.0) 1.0))) | |
193 | ||
194 | (with-test-prefix "fldiv0-and-mod0" | |
195 | (pass-if "simple" | |
196 | (call-with-values (lambda () (fldiv0-and-mod0 -123.0 10.0)) | |
197 | (lambda (div mod) | |
ff62c168 | 198 | (and (fl=? div -12.0) (fl=? mod -3.0)))))) |
b01818d7 JG |
199 | |
200 | (with-test-prefix "fldiv0" | |
ff62c168 | 201 | (pass-if "simple" (fl=? (fldiv0 -123.0 10.0) -12.0))) |
b01818d7 JG |
202 | |
203 | (with-test-prefix "flmod0" | |
ff62c168 | 204 | (pass-if "simple" (fl=? (flmod0 -123.0 10.0) -3.0))) |
b01818d7 JG |
205 | |
206 | (with-test-prefix "flnumerator" | |
207 | (pass-if "simple" (fl=? (flnumerator 0.5) 1.0)) | |
208 | ||
209 | (pass-if "infinities" | |
210 | (and (fl=? (flnumerator +inf.0) +inf.0) | |
211 | (fl=? (flnumerator -inf.0) -inf.0))) | |
212 | ||
213 | (pass-if "negative zero" (fl=? (flnumerator -0.0) -0.0))) | |
214 | ||
215 | (with-test-prefix "fldenominator" | |
216 | (pass-if "simple" (fl=? (fldenominator 0.5) 2.0)) | |
217 | ||
218 | (pass-if "infinities" | |
219 | (and (fl=? (fldenominator +inf.0) 1.0) | |
220 | (fl=? (fldenominator -inf.0) 1.0))) | |
221 | ||
222 | (pass-if "zero" (fl=? (fldenominator 0.0) 1.0))) | |
223 | ||
224 | (with-test-prefix "flfloor" | |
225 | (pass-if "simple" | |
226 | (and (fl=? (flfloor -4.3) -5.0) | |
227 | (fl=? (flfloor 3.5) 3.0)))) | |
228 | ||
229 | (with-test-prefix "flceiling" | |
230 | (pass-if "simple" | |
231 | (and (fl=? (flceiling -4.3) -4.0) | |
232 | (fl=? (flceiling 3.5) 4.0)))) | |
233 | ||
234 | (with-test-prefix "fltruncate" | |
235 | (pass-if "simple" | |
236 | (and (fl=? (fltruncate -4.3) -4.0) | |
237 | (fl=? (fltruncate 3.5) 3.0)))) | |
238 | ||
239 | (with-test-prefix "flround" | |
240 | (pass-if "simple" | |
241 | (and (fl=? (flround -4.3) -4.0) | |
242 | (fl=? (flround 3.5) 4.0)))) | |
243 | ||
244 | (with-test-prefix "flexp" | |
245 | (pass-if "infinities" | |
246 | (and (fl=? (flexp +inf.0) +inf.0) | |
247 | (fl=? (flexp -inf.0) 0.0)))) | |
248 | ||
249 | (with-test-prefix "fllog" | |
250 | (pass-if "unary fllog returns natural log" | |
251 | (let ((l (fllog 2.718281828459045))) | |
252 | (and (fl<=? 0.9 l) (fl>=? 1.1 l)))) | |
253 | ||
254 | (pass-if "infinities" | |
255 | (and (fl=? (fllog +inf.0) +inf.0) | |
256 | (flnan? (fllog -inf.0)))) | |
257 | ||
258 | (pass-if "zeroes" (fl=? (fllog 0.0) -inf.0)) | |
259 | ||
260 | (pass-if "binary fllog returns log in specified base" | |
261 | (fl=? (fllog 8.0 2.0) 3.0))) | |
262 | ||
263 | (with-test-prefix "flsin" | |
264 | (pass-if "simple" | |
265 | (and (reasonably-close? (flsin (/ fake-pi 2)) 1.0) | |
266 | (reasonably-close? (flsin (/ fake-pi 6)) 0.5)))) | |
267 | ||
268 | (with-test-prefix "flcos" | |
269 | (pass-if "simple" | |
270 | (and (fl=? (flcos 0.0) 1.0) (reasonably-close? (flcos (/ fake-pi 3)) 0.5)))) | |
271 | ||
272 | (with-test-prefix "fltan" | |
273 | (pass-if "simple" | |
274 | (and (reasonably-close? (fltan (/ fake-pi 4)) 1.0) | |
275 | (reasonably-close? (fltan (/ (* 3 fake-pi) 4)) -1.0)))) | |
276 | ||
277 | (with-test-prefix "flasin" | |
278 | (pass-if "simple" | |
279 | (and (reasonably-close? (flasin 1.0) (/ fake-pi 2)) | |
280 | (reasonably-close? (flasin 0.5) (/ fake-pi 6))))) | |
281 | ||
282 | (with-test-prefix "flacos" | |
283 | (pass-if "simple" | |
284 | (and (fl=? (flacos 1.0) 0.0) | |
285 | (reasonably-close? (flacos 0.5) (/ fake-pi 3))))) | |
286 | ||
287 | (with-test-prefix "flatan" | |
288 | (pass-if "unary flatan" | |
289 | (and (reasonably-close? (flatan 1.0) (/ fake-pi 4)) | |
290 | (reasonably-close? (flatan -1.0) (/ fake-pi -4)))) | |
291 | ||
292 | (pass-if "infinities" | |
293 | (and (reasonably-close? (flatan -inf.0) -1.5707963267949) | |
294 | (reasonably-close? (flatan +inf.0) 1.5707963267949))) | |
295 | ||
296 | (pass-if "binary flatan" | |
297 | (and (reasonably-close? (flatan 3.5 3.5) (/ fake-pi 4))))) | |
298 | ||
299 | (with-test-prefix "flsqrt" | |
300 | (pass-if "simple" (fl=? (flsqrt 4.0) 2.0)) | |
301 | ||
302 | (pass-if "infinity" (fl=? (flsqrt +inf.0) +inf.0)) | |
303 | ||
304 | (pass-if "negative zero" (fl=? (flsqrt -0.0) -0.0))) | |
305 | ||
306 | (with-test-prefix "flexpt" (pass-if "simple" (fl=? (flexpt 2.0 3.0) 8.0))) | |
307 | ||
308 | (with-test-prefix "fixnum->flonum" | |
309 | (pass-if "simple" (fl=? (fixnum->flonum 100) 100.0))) |