xref: /sqlite-3.40.0/test/capi2.test (revision dddca286)
1# 2003 January 29
2#
3# The author disclaims copyright to this source code.  In place of
4# a legal notice, here is a blessing:
5#
6#    May you do good and not evil.
7#    May you find forgiveness for yourself and forgive others.
8#    May you share freely, never taking more than you give.
9#
10#***********************************************************************
11# This file implements regression tests for SQLite library.  The
12# focus of this script testing the callback-free C/C++ API.
13#
14# $Id: capi2.test,v 1.27 2006/01/03 00:33:50 drh Exp $
15#
16
17set testdir [file dirname $argv0]
18source $testdir/tester.tcl
19
20# Return the text values from the current row pointed at by STMT as a list.
21proc get_row_values {STMT} {
22  set VALUES [list]
23  for {set i 0} {$i < [sqlite3_data_count $STMT]} {incr i} {
24    lappend VALUES [sqlite3_column_text $STMT $i]
25  }
26  return $VALUES
27}
28
29# Return the column names followed by declaration types for the result set
30# of the SQL statement STMT.
31#
32# i.e. for:
33# CREATE TABLE abc(a text, b integer);
34# SELECT * FROM abc;
35#
36# The result is {a b text integer}
37proc get_column_names {STMT} {
38  set VALUES [list]
39  for {set i 0} {$i < [sqlite3_column_count $STMT]} {incr i} {
40    lappend VALUES [sqlite3_column_name $STMT $i]
41  }
42  for {set i 0} {$i < [sqlite3_column_count $STMT]} {incr i} {
43    lappend VALUES [sqlite3_column_decltype $STMT $i]
44  }
45  return $VALUES
46}
47
48# Check basic functionality
49#
50do_test capi2-1.1 {
51  set DB [sqlite3_connection_pointer db]
52  execsql {CREATE TABLE t1(a,b,c)}
53  set VM [sqlite3_prepare $DB {SELECT name, rowid FROM sqlite_master} -1 TAIL]
54  set TAIL
55} {}
56do_test capi2-1.2 {
57  sqlite3_step $VM
58} {SQLITE_ROW}
59do_test capi2-1.3 {
60  sqlite3_data_count $VM
61} {2}
62do_test capi2-1.4 {
63  get_row_values $VM
64} {t1 1}
65do_test capi2-1.5 {
66  get_column_names $VM
67} {name rowid text INTEGER}
68do_test capi2-1.6 {
69  sqlite3_step $VM
70} {SQLITE_DONE}
71do_test capi2-1.7 {
72  list [sqlite3_column_count $VM] [get_row_values $VM] [get_column_names $VM]
73} {2 {} {name rowid text INTEGER}}
74do_test capi2-1.8 {
75  sqlite3_step $VM
76} {SQLITE_MISUSE}
77
78# Update: In v2, once SQLITE_MISUSE is returned the statement handle cannot
79# be interrogated for more information. However in v3, since the column
80# count, names and types are determined at compile time, these are still
81# accessible after an SQLITE_MISUSE error.
82do_test capi2-1.9 {
83  list [sqlite3_column_count $VM] [get_row_values $VM] [get_column_names $VM]
84} {2 {} {name rowid text INTEGER}}
85do_test capi2-1.10 {
86  sqlite3_data_count $VM
87} {0}
88
89do_test capi2-1.11 {
90  sqlite3_finalize $VM
91} {SQLITE_OK}
92
93# Check to make sure that the "tail" of a multi-statement SQL script
94# is returned by sqlite3_prepare.
95#
96do_test capi2-2.1 {
97  set SQL {
98    SELECT name, rowid FROM sqlite_master;
99    SELECT name, rowid FROM sqlite_master WHERE 0;
100    -- A comment at the end
101  }
102  set VM [sqlite3_prepare $DB $SQL -1 SQL]
103  set SQL
104} {
105    SELECT name, rowid FROM sqlite_master WHERE 0;
106    -- A comment at the end
107  }
108do_test capi2-2.2 {
109  set r [sqlite3_step $VM]
110  lappend r [sqlite3_column_count $VM] \
111            [get_row_values $VM] \
112            [get_column_names $VM]
113} {SQLITE_ROW 2 {t1 1} {name rowid text INTEGER}}
114do_test capi2-2.3 {
115  set r [sqlite3_step $VM]
116  lappend r [sqlite3_column_count $VM] \
117            [get_row_values $VM] \
118            [get_column_names $VM]
119} {SQLITE_DONE 2 {} {name rowid text INTEGER}}
120do_test capi2-2.4 {
121  sqlite3_finalize $VM
122} {SQLITE_OK}
123do_test capi2-2.5 {
124  set VM [sqlite3_prepare $DB $SQL -1 SQL]
125  set SQL
126} {
127    -- A comment at the end
128  }
129do_test capi2-2.6 {
130  set r [sqlite3_step $VM]
131  lappend r [sqlite3_column_count $VM] \
132            [get_row_values $VM] \
133            [get_column_names $VM]
134} {SQLITE_DONE 2 {} {name rowid text INTEGER}}
135do_test capi2-2.7 {
136  sqlite3_finalize $VM
137} {SQLITE_OK}
138do_test capi2-2.8 {
139  set VM [sqlite3_prepare $DB $SQL -1 SQL]
140  list $SQL $VM
141} {{} {}}
142
143# Check the error handling.
144#
145do_test capi2-3.1 {
146  set rc [catch {
147      sqlite3_prepare $DB {select bogus from sqlite_master} -1 TAIL
148  } msg]
149  lappend rc $msg $TAIL
150} {1 {(1) no such column: bogus} {}}
151do_test capi2-3.2 {
152  set rc [catch {
153      sqlite3_prepare $DB {select bogus from } -1 TAIL
154  } msg]
155  lappend rc $msg $TAIL
156} {1 {(1) near " ": syntax error} {}}
157do_test capi2-3.3 {
158  set rc [catch {
159      sqlite3_prepare $DB {;;;;select bogus from sqlite_master} -1 TAIL
160  } msg]
161  lappend rc $msg $TAIL
162} {1 {(1) no such column: bogus} {}}
163do_test capi2-3.4 {
164  set rc [catch {
165      sqlite3_prepare $DB {select bogus from sqlite_master;x;} -1 TAIL
166  } msg]
167  lappend rc $msg $TAIL
168} {1 {(1) no such column: bogus} {x;}}
169do_test capi2-3.5 {
170  set rc [catch {
171      sqlite3_prepare $DB {select bogus from sqlite_master;;;x;} -1 TAIL
172  } msg]
173  lappend rc $msg $TAIL
174} {1 {(1) no such column: bogus} {;;x;}}
175do_test capi2-3.6 {
176  set rc [catch {
177      sqlite3_prepare $DB {select 5/0} -1 TAIL
178  } VM]
179  lappend rc $TAIL
180} {0 {}}
181do_test capi2-3.7 {
182  list [sqlite3_step $VM] \
183       [sqlite3_column_count $VM] \
184       [get_row_values $VM] \
185       [get_column_names $VM]
186} {SQLITE_ROW 1 {{}} {5/0 {}}}
187do_test capi2-3.8 {
188  sqlite3_finalize $VM
189} {SQLITE_OK}
190do_test capi2-3.9 {
191  execsql {CREATE UNIQUE INDEX i1 ON t1(a)}
192  set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES(1,2,3)} -1 TAIL]
193  set TAIL
194} {}
195do_test capi2-3.9b {db changes} {0}
196do_test capi2-3.10 {
197  list [sqlite3_step $VM] \
198       [sqlite3_column_count $VM] \
199       [get_row_values $VM] \
200       [get_column_names $VM]
201} {SQLITE_DONE 0 {} {}}
202
203# Update for v3 - the change has not actually happened until the query is
204# finalized. Is this going to cause trouble for anyone? Lee Nelson maybe?
205# (Later:) The change now happens just before SQLITE_DONE is returned.
206do_test capi2-3.10b {db changes} {1}
207do_test capi2-3.11 {
208  sqlite3_finalize $VM
209} {SQLITE_OK}
210do_test capi2-3.11b {db changes} {1}
211do_test capi2-3.12 {
212  sqlite3_finalize $VM
213} {SQLITE_MISUSE}
214do_test capi2-3.13 {
215  set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES(1,3,4)} -1 TAIL]
216  list [sqlite3_step $VM] \
217       [sqlite3_column_count $VM] \
218       [get_row_values $VM] \
219       [get_column_names $VM]
220} {SQLITE_ERROR 0 {} {}}
221
222# Update for v3: Preparing a statement does not affect the change counter.
223# (Test result changes from 0 to 1).  (Later:) change counter updates occur
224# when sqlite3_step returns, not at finalize time.
225do_test capi2-3.13b {db changes} {0}
226
227do_test capi2-3.14 {
228  list [sqlite3_finalize $VM] [sqlite3_errmsg $DB]
229} {SQLITE_CONSTRAINT {column a is not unique}}
230do_test capi2-3.15 {
231  set VM [sqlite3_prepare $DB {CREATE TABLE t2(a NOT NULL, b)} -1 TAIL]
232  set TAIL
233} {}
234do_test capi2-3.16 {
235  list [sqlite3_step $VM] \
236       [sqlite3_column_count $VM] \
237       [get_row_values $VM] \
238       [get_column_names $VM]
239} {SQLITE_DONE 0 {} {}}
240do_test capi2-3.17 {
241  list [sqlite3_finalize $VM] [sqlite3_errmsg $DB]
242} {SQLITE_OK {not an error}}
243do_test capi2-3.18 {
244  set VM [sqlite3_prepare $DB {INSERT INTO t2 VALUES(NULL,2)} -1 TAIL]
245  list [sqlite3_step $VM] \
246       [sqlite3_column_count $VM] \
247       [get_row_values $VM] \
248       [get_column_names $VM]
249} {SQLITE_ERROR 0 {} {}}
250do_test capi2-3.19 {
251  list [sqlite3_finalize $VM] [sqlite3_errmsg $DB]
252} {SQLITE_CONSTRAINT {t2.a may not be NULL}}
253
254do_test capi2-3.20 {
255  execsql {
256    CREATE TABLE a1(message_id, name , UNIQUE(message_id, name) );
257    INSERT INTO a1 VALUES(1, 1);
258  }
259} {}
260do_test capi2-3.21 {
261  set VM [sqlite3_prepare $DB {INSERT INTO a1 VALUES(1, 1)} -1 TAIL]
262  sqlite3_step $VM
263} {SQLITE_ERROR}
264do_test capi2-3.22 {
265  sqlite3_errcode $DB
266} {SQLITE_ERROR}
267do_test capi2-3.23 {
268  sqlite3_finalize $VM
269} {SQLITE_CONSTRAINT}
270do_test capi2-3.24 {
271  sqlite3_errcode $DB
272} {SQLITE_CONSTRAINT}
273
274# Two or more virtual machines exists at the same time.
275#
276do_test capi2-4.1 {
277  set VM1 [sqlite3_prepare $DB {INSERT INTO t2 VALUES(1,2)} -1 TAIL]
278  set TAIL
279} {}
280do_test capi2-4.2 {
281  set VM2 [sqlite3_prepare $DB {INSERT INTO t2 VALUES(2,3)} -1 TAIL]
282  set TAIL
283} {}
284do_test capi2-4.3 {
285  set VM3 [sqlite3_prepare $DB {INSERT INTO t2 VALUES(3,4)} -1 TAIL]
286  set TAIL
287} {}
288do_test capi2-4.4 {
289  list [sqlite3_step $VM2] \
290       [sqlite3_column_count $VM2] \
291       [get_row_values $VM2] \
292       [get_column_names $VM2]
293} {SQLITE_DONE 0 {} {}}
294do_test capi2-4.5 {
295  execsql {SELECT * FROM t2 ORDER BY a}
296} {2 3}
297do_test capi2-4.6 {
298  sqlite3_finalize $VM2
299} {SQLITE_OK}
300do_test capi2-4.7 {
301  list [sqlite3_step $VM3] \
302       [sqlite3_column_count $VM3] \
303       [get_row_values $VM3] \
304       [get_column_names $VM3]
305} {SQLITE_DONE 0 {} {}}
306do_test capi2-4.8 {
307  execsql {SELECT * FROM t2 ORDER BY a}
308} {2 3 3 4}
309do_test capi2-4.9 {
310  sqlite3_finalize $VM3
311} {SQLITE_OK}
312do_test capi2-4.10 {
313  list [sqlite3_step $VM1] \
314       [sqlite3_column_count $VM1] \
315       [get_row_values $VM1] \
316       [get_column_names $VM1]
317} {SQLITE_DONE 0 {} {}}
318do_test capi2-4.11 {
319  execsql {SELECT * FROM t2 ORDER BY a}
320} {1 2 2 3 3 4}
321do_test capi2-4.12 {
322  sqlite3_finalize $VM1
323} {SQLITE_OK}
324
325# Interleaved SELECTs
326#
327do_test capi2-5.1 {
328  set VM1 [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
329  set VM2 [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
330  set VM3 [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
331  list [sqlite3_step $VM1] \
332       [sqlite3_column_count $VM1] \
333       [get_row_values $VM1] \
334       [get_column_names $VM1]
335} {SQLITE_ROW 2 {2 3} {a b {} {}}}
336do_test capi2-5.2 {
337  list [sqlite3_step $VM2] \
338       [sqlite3_column_count $VM2] \
339       [get_row_values $VM2] \
340       [get_column_names $VM2]
341} {SQLITE_ROW 2 {2 3} {a b {} {}}}
342do_test capi2-5.3 {
343  list [sqlite3_step $VM1] \
344       [sqlite3_column_count $VM1] \
345       [get_row_values $VM1] \
346       [get_column_names $VM1]
347} {SQLITE_ROW 2 {3 4} {a b {} {}}}
348do_test capi2-5.4 {
349  list [sqlite3_step $VM3] \
350       [sqlite3_column_count $VM3] \
351       [get_row_values $VM3] \
352       [get_column_names $VM3]
353} {SQLITE_ROW 2 {2 3} {a b {} {}}}
354do_test capi2-5.5 {
355  list [sqlite3_step $VM3] \
356       [sqlite3_column_count $VM3] \
357       [get_row_values $VM3] \
358       [get_column_names $VM3]
359} {SQLITE_ROW 2 {3 4} {a b {} {}}}
360do_test capi2-5.6 {
361  list [sqlite3_step $VM3] \
362       [sqlite3_column_count $VM3] \
363       [get_row_values $VM3] \
364       [get_column_names $VM3]
365} {SQLITE_ROW 2 {1 2} {a b {} {}}}
366do_test capi2-5.7 {
367  list [sqlite3_step $VM3] \
368       [sqlite3_column_count $VM3] \
369       [get_row_values $VM3] \
370       [get_column_names $VM3]
371} {SQLITE_DONE 2 {} {a b {} {}}}
372do_test capi2-5.8 {
373  sqlite3_finalize $VM3
374} {SQLITE_OK}
375do_test capi2-5.9 {
376  list [sqlite3_step $VM1] \
377       [sqlite3_column_count $VM1] \
378       [get_row_values $VM1] \
379       [get_column_names $VM1]
380} {SQLITE_ROW 2 {1 2} {a b {} {}}}
381do_test capi2-5.10 {
382  sqlite3_finalize $VM1
383} {SQLITE_OK}
384do_test capi2-5.11 {
385  list [sqlite3_step $VM2] \
386       [sqlite3_column_count $VM2] \
387       [get_row_values $VM2] \
388       [get_column_names $VM2]
389} {SQLITE_ROW 2 {3 4} {a b {} {}}}
390do_test capi2-5.12 {
391  list [sqlite3_step $VM2] \
392       [sqlite3_column_count $VM2] \
393       [get_row_values $VM2] \
394       [get_column_names $VM2]
395} {SQLITE_ROW 2 {1 2} {a b {} {}}}
396do_test capi2-5.11 {
397  sqlite3_finalize $VM2
398} {SQLITE_OK}
399
400# Check for proper SQLITE_BUSY returns.
401#
402do_test capi2-6.1 {
403  execsql {
404    BEGIN;
405    CREATE TABLE t3(x counter);
406    INSERT INTO t3 VALUES(1);
407    INSERT INTO t3 VALUES(2);
408    INSERT INTO t3 SELECT x+2 FROM t3;
409    INSERT INTO t3 SELECT x+4 FROM t3;
410    INSERT INTO t3 SELECT x+8 FROM t3;
411    COMMIT;
412  }
413  set VM1 [sqlite3_prepare $DB {SELECT * FROM t3} -1 TAIL]
414  sqlite3 db2 test.db
415  execsql {BEGIN} db2
416} {}
417# Update for v3: BEGIN doesn't write-lock the database. It is quite
418# difficult to get v3 to write-lock the database, which causes a few
419# problems for test scripts.
420#
421# do_test capi2-6.2 {
422#   list [sqlite3_step $VM1] \
423#        [sqlite3_column_count $VM1] \
424#        [get_row_values $VM1] \
425#        [get_column_names $VM1]
426# } {SQLITE_BUSY 0 {} {}}
427do_test capi2-6.3 {
428  execsql {COMMIT} db2
429} {}
430do_test capi2-6.4 {
431  list [sqlite3_step $VM1] \
432       [sqlite3_column_count $VM1] \
433       [get_row_values $VM1] \
434       [get_column_names $VM1]
435} {SQLITE_ROW 1 1 {x counter}}
436do_test capi2-6.5 {
437  catchsql {INSERT INTO t3 VALUES(10);} db2
438} {1 {database is locked}}
439do_test capi2-6.6 {
440  list [sqlite3_step $VM1] \
441       [sqlite3_column_count $VM1] \
442       [get_row_values $VM1] \
443       [get_column_names $VM1]
444} {SQLITE_ROW 1 2 {x counter}}
445do_test capi2-6.7 {
446  execsql {SELECT * FROM t2} db2
447} {2 3 3 4 1 2}
448do_test capi2-6.8 {
449  list [sqlite3_step $VM1] \
450       [sqlite3_column_count $VM1] \
451       [get_row_values $VM1] \
452       [get_column_names $VM1]
453} {SQLITE_ROW 1 3 {x counter}}
454do_test capi2-6.9 {
455  execsql {SELECT * FROM t2}
456} {2 3 3 4 1 2}
457do_test capi2-6.10 {
458  list [sqlite3_step $VM1] \
459       [sqlite3_column_count $VM1] \
460       [get_row_values $VM1] \
461       [get_column_names $VM1]
462} {SQLITE_ROW 1 4 {x counter}}
463do_test capi2-6.11 {
464  execsql {BEGIN}
465} {}
466do_test capi2-6.12 {
467  list [sqlite3_step $VM1] \
468       [sqlite3_column_count $VM1] \
469       [get_row_values $VM1] \
470       [get_column_names $VM1]
471} {SQLITE_ROW 1 5 {x counter}}
472
473do_test capi2-6.13 {
474  catchsql {UPDATE t3 SET x=x+1}
475} {1 {database table is locked}}
476do_test capi2-6.14 {
477  list [sqlite3_step $VM1] \
478       [sqlite3_column_count $VM1] \
479       [get_row_values $VM1] \
480       [get_column_names $VM1]
481} {SQLITE_ROW 1 6 {x counter}}
482do_test capi2-6.15 {
483  execsql {SELECT * FROM t1}
484} {1 2 3}
485do_test capi2-6.16 {
486  list [sqlite3_step $VM1] \
487       [sqlite3_column_count $VM1] \
488       [get_row_values $VM1] \
489       [get_column_names $VM1]
490} {SQLITE_ROW 1 7 {x counter}}
491do_test capi2-6.17 {
492  catchsql {UPDATE t1 SET b=b+1}
493} {0 {}}
494do_test capi2-6.18 {
495  list [sqlite3_step $VM1] \
496       [sqlite3_column_count $VM1] \
497       [get_row_values $VM1] \
498       [get_column_names $VM1]
499} {SQLITE_ROW 1 8 {x counter}}
500do_test capi2-6.19 {
501  execsql {SELECT * FROM t1}
502} {1 3 3}
503do_test capi2-6.20 {
504  list [sqlite3_step $VM1] \
505       [sqlite3_column_count $VM1] \
506       [get_row_values $VM1] \
507       [get_column_names $VM1]
508} {SQLITE_ROW 1 9 {x counter}}
509#do_test capi2-6.21 {
510#  execsql {ROLLBACK; SELECT * FROM t1}
511#} {1 2 3}
512do_test capi2-6.22 {
513  list [sqlite3_step $VM1] \
514       [sqlite3_column_count $VM1] \
515       [get_row_values $VM1] \
516       [get_column_names $VM1]
517} {SQLITE_ROW 1 10 {x counter}}
518#do_test capi2-6.23 {
519#  execsql {BEGIN TRANSACTION;}
520#} {}
521do_test capi2-6.24 {
522  list [sqlite3_step $VM1] \
523       [sqlite3_column_count $VM1] \
524       [get_row_values $VM1] \
525       [get_column_names $VM1]
526} {SQLITE_ROW 1 11 {x counter}}
527do_test capi2-6.25 {
528  execsql {
529    INSERT INTO t1 VALUES(2,3,4);
530    SELECT * FROM t1;
531  }
532} {1 3 3 2 3 4}
533do_test capi2-6.26 {
534  list [sqlite3_step $VM1] \
535       [sqlite3_column_count $VM1] \
536       [get_row_values $VM1] \
537       [get_column_names $VM1]
538} {SQLITE_ROW 1 12 {x counter}}
539do_test capi2-6.27 {
540  catchsql {
541    INSERT INTO t1 VALUES(2,4,5);
542    SELECT * FROM t1;
543  }
544} {1 {column a is not unique}}
545do_test capi2-6.28 {
546  list [sqlite3_step $VM1] \
547       [sqlite3_column_count $VM1] \
548       [get_row_values $VM1] \
549       [get_column_names $VM1]
550} {SQLITE_ROW 1 13 {x counter}}
551do_test capi2-6.99 {
552  sqlite3_finalize $VM1
553} {SQLITE_OK}
554catchsql {ROLLBACK}
555
556do_test capi2-7.1 {
557  stepsql $DB {
558    SELECT * FROM t1
559  }
560} {0 1 2 3}
561do_test capi2-7.2 {
562  stepsql $DB {
563    PRAGMA count_changes=on
564  }
565} {0}
566do_test capi2-7.3 {
567  stepsql $DB {
568    UPDATE t1 SET a=a+10;
569  }
570} {0 1}
571do_test capi2-7.4 {
572  stepsql $DB {
573    INSERT INTO t1 SELECT a+1,b+1,c+1 FROM t1;
574  }
575} {0 1}
576do_test capi2-7.4b {sqlite3_changes $DB} {1}
577do_test capi2-7.5 {
578  stepsql $DB {
579    UPDATE t1 SET a=a+10;
580  }
581} {0 2}
582do_test capi2-7.5b {sqlite3_changes $DB} {2}
583do_test capi2-7.6 {
584  stepsql $DB {
585    SELECT * FROM t1;
586  }
587} {0 21 2 3 22 3 4}
588do_test capi2-7.7 {
589  stepsql $DB {
590    INSERT INTO t1 SELECT a+2,b+2,c+2 FROM t1;
591  }
592} {0 2}
593do_test capi2-7.8 {
594  sqlite3_changes $DB
595} {2}
596do_test capi2-7.9 {
597  stepsql $DB {
598    SELECT * FROM t1;
599  }
600} {0 21 2 3 22 3 4 23 4 5 24 5 6}
601do_test capi2-7.10 {
602  stepsql $DB {
603    UPDATE t1 SET a=a-20;
604    SELECT * FROM t1;
605  }
606} {0 4 1 2 3 2 3 4 3 4 5 4 5 6}
607
608# Update for version 3: A SELECT statement no longer resets the change
609# counter (Test result changes from 0 to 4).
610do_test capi2-7.11 {
611  sqlite3_changes $DB
612} {4}
613do_test capi2-7.11a {
614  execsql {SELECT count(*) FROM t1}
615} {4}
616
617ifcapable {explain} {
618  do_test capi2-7.12 {
619btree_breakpoint
620    set x [stepsql $DB {EXPLAIN SELECT * FROM t1}]
621    lindex $x 0
622  } {0}
623}
624
625# Ticket #261 - make sure we can finalize before the end of a query.
626#
627do_test capi2-8.1 {
628  set VM1 [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
629  sqlite3_finalize $VM1
630} {SQLITE_OK}
631
632# Tickets #384 and #385 - make sure the TAIL argument to sqlite3_prepare
633# and all of the return pointers in sqlite_step can be null.
634#
635do_test capi2-9.1 {
636  set VM1 [sqlite3_prepare $DB {SELECT * FROM t2} -1 DUMMY]
637  sqlite3_step $VM1
638  sqlite3_finalize $VM1
639} {SQLITE_OK}
640
641do_test capi2-10.1 {
642  sqlite3_finalize 0
643} {SQLITE_OK}
644do_test capi2-10.2 {
645  sqlite3_reset 0
646} {SQLITE_OK}
647
648db2 close
649
650finish_test
651