github.com/jdgcs/sqlite3@v1.12.1-0.20210908114423-bc5f96e4dd51/testdata/tcl/columncount.test (about)

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