summaryrefslogtreecommitdiffstats
path: root/test/nan.test
blob: 615a4ad22762939530fe714f6b3950cf3e2bf655 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
# 2008 April 28
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# Ticket #3060
#
# Make sure IEEE floating point NaN values are handled properly.
# SQLite should always convert NaN into NULL.
#
# Also verify that the decimal to IEEE754 binary conversion routines
# correctly generate 0.0, +Inf, and -Inf as appropriate for numbers
# out of range.
#
# $Id: nan.test,v 1.5 2008/09/18 11:30:13 danielk1977 Exp $
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Do not use a codec for tests in this file, as the database file is
# manipulated directly using tcl scripts (using the [hexio_write] command).
#
do_not_use_codec

do_test nan-1.1.1 {
  db eval {
    PRAGMA auto_vacuum=OFF;
    PRAGMA page_size=1024;
    CREATE TABLE t1(x FLOAT);
  }
  set ::STMT [sqlite3_prepare db "INSERT INTO t1 VALUES(?)" -1 TAIL]
  sqlite3_bind_double $::STMT 1 NaN
  sqlite3_step $::STMT
  sqlite3_reset $::STMT
  db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
if {$tcl_platform(platform) != "symbian"} {
  do_realnum_test nan-1.1.2 {
    sqlite3_bind_double $::STMT 1 +Inf
    sqlite3_step $::STMT
    sqlite3_reset $::STMT
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null inf real}
  do_realnum_test nan-1.1.3 {
    sqlite3_bind_double $::STMT 1 -Inf
    sqlite3_step $::STMT
    sqlite3_reset $::STMT
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null inf real -inf real}
  do_realnum_test nan-1.1.4 {
    sqlite3_bind_double $::STMT 1 -NaN
    sqlite3_step $::STMT
    sqlite3_reset $::STMT
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null inf real -inf real {} null}
  do_realnum_test nan-1.1.5 {
    sqlite3_bind_double $::STMT 1 NaN0
    sqlite3_step $::STMT
    sqlite3_reset $::STMT
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null inf real -inf real {} null {} null}
  do_realnum_test nan-1.1.6 {
    sqlite3_bind_double $::STMT 1 -NaN0
    sqlite3_step $::STMT
    sqlite3_reset $::STMT
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null inf real -inf real {} null {} null {} null}
  do_test nan-1.1.7 {
    db eval {
      UPDATE t1 SET x=x-x;
      SELECT x, typeof(x) FROM t1;
    }
  } {{} null {} null {} null {} null {} null {} null}
}

# The following block of tests, nan-1.2.*, are the same as the nan-1.1.*
# tests above, except that the SELECT queries used to validate data 
# convert floating point values to text internally before returning them
# to Tcl. This allows the tests to be run on platforms where Tcl has
# problems converting "inf" and "-inf" from floating point to text format.
# It also tests the internal float->text conversion routines a bit.
#
do_test nan-1.2.1 {
  db eval {
    DELETE FROM T1;
  }
  sqlite3_bind_double $::STMT 1 NaN
  sqlite3_step $::STMT
  sqlite3_reset $::STMT
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {{} null}
do_test nan-1.2.2 {
  sqlite3_bind_double $::STMT 1 +Inf
  sqlite3_step $::STMT
  sqlite3_reset $::STMT
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {{} null Inf real}
do_test nan-1.2.3 {
  sqlite3_bind_double $::STMT 1 -Inf
  sqlite3_step $::STMT
  sqlite3_reset $::STMT
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {{} null Inf real -Inf real}
do_test nan-1.2.4 {
  sqlite3_bind_double $::STMT 1 -NaN
  sqlite3_step $::STMT
  sqlite3_reset $::STMT
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {{} null Inf real -Inf real {} null}
do_test nan-1.2.5 {
  sqlite3_bind_double $::STMT 1 NaN0
  sqlite3_step $::STMT
  sqlite3_reset $::STMT
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {{} null Inf real -Inf real {} null {} null}
do_test nan-1.2.6 {
  sqlite3_bind_double $::STMT 1 -NaN0
  sqlite3_step $::STMT
  sqlite3_reset $::STMT
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {{} null Inf real -Inf real {} null {} null {} null}
do_test nan-1.2.7 {
  db eval {
    UPDATE t1 SET x=x-x;
    SELECT CAST(x AS text), typeof(x) FROM t1;
  }
} {{} null {} null {} null {} null {} null {} null}

do_test nan-2.1 {
  db eval {
    DELETE FROM T1;
  }
  sqlite3_bind_double $::STMT 1 NaN
  sqlite3_step $::STMT
  sqlite3_reset $::STMT
  db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
sqlite3_finalize $::STMT

# SQLite always converts NaN into NULL so it is not possible to write
# a NaN value into the database file using SQLite.  The following series
# of tests writes a normal floating point value (0.5) into the database,
# then writes directly into the database file to change the 0.5 into NaN.
# Then it reads the value of the database to verify it is converted into
# NULL.
#
if {![nonzero_reserved_bytes]} {
  do_test nan-3.1 {
    db eval {
      DELETE FROM t1;
      INSERT INTO t1 VALUES(0.5);
      PRAGMA auto_vacuum=OFF;
      PRAGMA page_size=1024;
      VACUUM;
    }
    hexio_read test.db 2040 8
  } {3FE0000000000000}
  do_test nan-3.2 {
    db eval {
      SELECT x, typeof(x) FROM t1
    }
  } {0.5 real}
  do_test nan-3.3 {
    db close
    hexio_write test.db 2040 FFF8000000000000
    sqlite3 db test.db
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null}
  do_test nan-3.4 {
    db close
    hexio_write test.db 2040 7FF8000000000000
    sqlite3 db test.db
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null}
  do_test nan-3.5 {
    db close
    hexio_write test.db 2040 FFFFFFFFFFFFFFFF
    sqlite3 db test.db
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null}
  do_test nan-3.6 {
    db close
    hexio_write test.db 2040 7FFFFFFFFFFFFFFF
    sqlite3 db test.db
    db eval {SELECT x, typeof(x) FROM t1}
  } {{} null}
}

# Verify that the sqlite3AtoF routine is able to handle extreme
# numbers.
#
do_test nan-4.1 {
  db eval {DELETE FROM t1}
  db eval "INSERT INTO t1 VALUES([string repeat 9 307].0)"
  db eval {SELECT x, typeof(x) FROM t1}
} {1e+307 real}
do_test nan-4.2 {
  db eval {DELETE FROM t1}
  db eval "INSERT INTO t1 VALUES([string repeat 9 308].0)"
  db eval {SELECT x, typeof(x) FROM t1}
} {1e+308 real}
do_test nan-4.3 {
  db eval {DELETE FROM t1}
  db eval "INSERT INTO t1 VALUES(-[string repeat 9 307].0)"
  db eval {SELECT x, typeof(x) FROM t1}
} {-1e+307 real}
do_test nan-4.4 {
  db eval {DELETE FROM t1}
  db eval "INSERT INTO t1 VALUES(-[string repeat 9 308].0)"
  db eval {SELECT x, typeof(x) FROM t1}
} {-1e+308 real}
do_test nan-4.5 {
  db eval {DELETE FROM t1}
  set big -[string repeat 0 10000][string repeat 9 308].[string repeat 0 10000]
  db eval "INSERT INTO t1 VALUES($big)"
  db eval {SELECT x, typeof(x) FROM t1}
} {-1e+308 real}
do_test nan-4.6 {
  db eval {DELETE FROM t1}
  set big [string repeat 0 10000][string repeat 9 308].[string repeat 0 10000]
  db eval "INSERT INTO t1 VALUES($big)"
  db eval {SELECT x, typeof(x) FROM t1}
} {1e+308 real}

if {$tcl_platform(platform) != "symbian"} {
  # Do not run these tests on Symbian, as the Tcl port doesn't like to
  # convert from floating point value "-inf" to a string.
  #
  do_realnum_test nan-4.7 {
    db eval {DELETE FROM t1}
    db eval "INSERT INTO t1 VALUES([string repeat 9 309].0)"
    db eval {SELECT x, typeof(x) FROM t1}
  } {inf real}
  do_realnum_test nan-4.8 {
    db eval {DELETE FROM t1}
    db eval "INSERT INTO t1 VALUES(-[string repeat 9 309].0)"
    db eval {SELECT x, typeof(x) FROM t1}
  } {-inf real}
}
do_test nan-4.9 {
  db eval {DELETE FROM t1}
  db eval "INSERT INTO t1 VALUES([string repeat 9 309].0)"
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {Inf real}
do_test nan-4.10 {
  db eval {DELETE FROM t1}
  db eval "INSERT INTO t1 VALUES(-[string repeat 9 309].0)"
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {-Inf real}

do_test nan-4.11 {
  db eval {DELETE FROM t1}
  db eval "INSERT INTO t1 VALUES(1234.5[string repeat 0 10000]12345)"
  db eval {SELECT x, typeof(x) FROM t1}
} {1234.5 real}
do_test nan-4.12 {
  db eval {DELETE FROM t1}
  db eval "INSERT INTO t1 VALUES(-1234.5[string repeat 0 10000]12345)"
  db eval {SELECT x, typeof(x) FROM t1}
} {-1234.5 real}
do_test nan-4.13 {
  db eval {DELETE FROM t1}
  set small [string repeat 0 10000].[string repeat 0 324][string repeat 9 10000]
  db eval "INSERT INTO t1 VALUES($small)"
  db eval {SELECT x, typeof(x) FROM t1}
} {0.0 real}
do_test nan-4.14 {
  db eval {DELETE FROM t1}
  set small \
      -[string repeat 0 10000].[string repeat 0 324][string repeat 9 10000]
  db eval "INSERT INTO t1 VALUES($small)"
  db eval {SELECT x, typeof(x) FROM t1}
} {0.0 real}

# These tests test some really, really small floating point numbers.
#
if {$tcl_platform(platform) != "symbian"} {
  # These two are not run on symbian because tcl has trouble converting
  # the very small numbers back to text form (probably due to a difference
  # in the sprintf() implementation).
  #
  do_test nan-4.15 {
    db eval {DELETE FROM t1}
    set small \
        [string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
    db eval "INSERT INTO t1 VALUES($small)"
    db eval {SELECT x, typeof(x) FROM t1}
  } {9.88131291682493e-324 real}
  do_test nan-4.16 {
    db eval {DELETE FROM t1}
    set small \
        -[string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
    db eval "INSERT INTO t1 VALUES($small)"
    db eval {SELECT x, typeof(x) FROM t1}
  } {-9.88131291682493e-324 real}
}
do_test nan-4.17 {
  db eval {DELETE FROM t1}
  set small [string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
  db eval "INSERT INTO t1 VALUES($small)"
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {9.88131291682493e-324 real}
do_test nan-4.18 {
  db eval {DELETE FROM t1}
  set small \
      -[string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
  db eval "INSERT INTO t1 VALUES($small)"
  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
} {-9.88131291682493e-324 real}

do_realnum_test nan-4.20 {
  db eval {DELETE FROM t1}
  set big [string repeat 9 10000].0e-9000
  db eval "INSERT INTO t1 VALUES($big)"
  db eval {SELECT x, typeof(x) FROM t1}
} {inf real}

do_realnum_test nan-4.30 {
  db eval {
    DELETE FROM t1;
    INSERT INTO t1 VALUES('2.5e+9999');
    SELECT x, typeof(x) FROM t1;
  }
} {inf real}
do_realnum_test nan-4.31 {
  db eval {
    DELETE FROM t1;
    INSERT INTO t1 VALUES('2.5e+10000');
    SELECT x, typeof(x) FROM t1;
  }
} {inf real}

do_realnum_test nan-4.32 {
  db eval {
    DELETE FROM t1;
    INSERT INTO t1 VALUES('2.5e-9999');
    SELECT x, typeof(x) FROM t1;
  }
} {0.0 real}
do_realnum_test nan-4.33 {
  db eval {
    DELETE FROM t1;
    INSERT INTO t1 VALUES('2.5e-10000');
    SELECT x, typeof(x) FROM t1;
  }
} {0.0 real}
do_realnum_test nan-4.34 {
  db eval {
    DELETE FROM t1;
    INSERT INTO t1 VALUES('2.5e2147483650');
    SELECT x, typeof(x) FROM t1;
  }
} {inf real}
do_realnum_test nan-4.35 {
  db eval {
    DELETE FROM t1;
    INSERT INTO t1 VALUES('2.5e-2147483650');
    SELECT x, typeof(x) FROM t1;
  }
} {0.0 real}

do_realnum_test nan-4.40 {
  db eval {
    SELECT cast('-1e999' AS real);
  }
} {-inf}

finish_test