xref: /sqlite-3.40.0/test/columncount.test (revision 37f3ac8f) 
1# 2021 February 15
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 file is testing the sqlite3_column_count() API.
13#
14
15set testdir [file dirname $argv0]
16source $testdir/tester.tcl
17set testprefix columncount
18
19# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
20ifcapable !altertable {
21  finish_test
22  return
23}
24
25proc do_ccsql_test {tn sql res} {
26
27  uplevel [list do_test $tn [subst -nocommands {
28    set stmt [sqlite3_prepare_v2 db {$sql} -1 dummy]
29    set res [sqlite3_column_count [set stmt]]
30    while {[sqlite3_step [set stmt]]=="SQLITE_ROW"} {
31      for {set i 0} {[set i] < [sqlite3_data_count [set stmt]]} {incr i} {
32        lappend res [sqlite3_column_text [set stmt] [set i]]
33      }
34    }
35
36    set rc [sqlite3_finalize [set stmt]]
37    if {[set rc]!="SQLITE_OK"} {
38      error [sqlite3_errmsg db]
39    }
40
41    set res
42  }] [list {*}$res]]
43
44}
45
46do_execsql_test 1.0 {
47  CREATE TABLE t1(x, y, z);
48  INSERT INTO t1 VALUES('a', 'b', 'c');
49}
50
51do_ccsql_test 1.1 { SELECT * FROM t1 }      {3    a b c}
52do_ccsql_test 1.2 { CREATE TABLE t2(a, b) } {0}
53
54do_ccsql_test 1.3 { ALTER TABLE t2 RENAME TO t3 } {0}
55do_ccsql_test 1.4 { ALTER TABLE t3 RENAME b TO ccc } {0}
56do_ccsql_test 1.5 { ALTER TABLE t3 ADD COLUMN d } {0}
57
58do_ccsql_test 1.6 { DROP TABLE t3 } {0}
59
60
61
62finish_test
63