# 2003 January 29
#
# 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script testing the callback-free C/C++ API.
#
# $Id: capi3.test,v 1.34 2005/08/11 02:10:19 drh Exp $
#

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

# Return the UTF-16 representation of the supplied UTF-8 string $str.
# If $nt is true, append two 0x00 bytes as a nul terminator.
proc utf16 {str {nt 1}} {
  set r [encoding convertto unicode $str]
  if {$nt} {
    append r "\x00\x00"
  }
  return $r
}

# Return the UTF-8 representation of the supplied UTF-16 string $str. 
proc utf8 {str} {
  # If $str ends in two 0x00 0x00 bytes, knock these off before
  # converting to UTF-8 using TCL.
  binary scan $str \c* vals
  if {[lindex $vals end]==0 && [lindex $vals end-1]==0} {
    set str [binary format \c* [lrange $vals 0 end-2]]
  }

  set r [encoding convertfrom unicode $str]
  return $r
}

# These tests complement those in capi2.test. They are organized
# as follows:
#
# capi3-1.*: Test sqlite3_prepare 
# capi3-2.*: Test sqlite3_prepare16
# capi3-3.*: Test sqlite3_open
# capi3-4.*: Test sqlite3_open16
# capi3-5.*: Test the various sqlite3_result_* APIs
# capi3-6.*: Test that sqlite3_close fails if there are outstanding VMs.
#

db close
set DB [sqlite3 db test.db]

do_test capi3-1.0 {
  sqlite3_get_autocommit $DB
} 1
do_test capi3-1.1 {
  set STMT [sqlite3_prepare $DB {SELECT name FROM sqlite_master} -1 TAIL]
  sqlite3_finalize $STMT
  set TAIL
} {}
do_test capi3-1.2 {
  sqlite3_errcode $DB
} {SQLITE_OK}
do_test capi3-1.3 {
  sqlite3_errmsg $DB
} {not an error}
do_test capi3-1.4 {
  set sql {SELECT name FROM sqlite_master;SELECT 10}
  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
  sqlite3_finalize $STMT
  set TAIL
} {SELECT 10}
do_test capi3-1.5 {
  set sql {SELECT namex FROM sqlite_master}
  catch {
    set STMT [sqlite3_prepare $DB $sql -1 TAIL]
  }
} {1}
do_test capi3-1.6 {
  sqlite3_errcode $DB
} {SQLITE_ERROR}
do_test capi3-1.7 {
  sqlite3_errmsg $DB
} {no such column: namex}

ifcapable {utf16} {
do_test capi3-2.1 {
  set sql16 [utf16 {SELECT name FROM sqlite_master}]
  set STMT [sqlite3_prepare16 $DB $sql16 -1 ::TAIL]
  sqlite3_finalize $STMT
  utf8 $::TAIL
} {}
do_test capi3-2.2 {
  set sql [utf16 {SELECT name FROM sqlite_master;SELECT 10}]
  set STMT [sqlite3_prepare16 $DB $sql -1 TAIL]
  sqlite3_finalize $STMT
  utf8 $TAIL
} {SELECT 10}
do_test capi3-2.3 {
  set sql [utf16 {SELECT namex FROM sqlite_master}]
  catch {
    set STMT [sqlite3_prepare16 $DB $sql -1 TAIL]
  }
} {1}
do_test capi3-2.4 {
  sqlite3_errcode $DB
} {SQLITE_ERROR}
do_test capi3-2.5 {
  sqlite3_errmsg $DB
} {no such column: namex}
} ;# endif utf16

# rename sqlite3_open sqlite3_open_old
# proc sqlite3_open {fname options} {sqlite3_open_new $fname $options}

do_test capi3-3.1 {
  set db2 [sqlite3_open test.db {}]
  sqlite3_errcode $db2
} {SQLITE_OK}
# FIX ME: Should test the db handle works.
do_test capi3-3.2 {
  sqlite3_close $db2
} {SQLITE_OK}
do_test capi3-3.3 {
  catch {
    set db2 [sqlite3_open /bogus/path/test.db {}]
  }
  sqlite3_errcode $db2
} {SQLITE_CANTOPEN}
do_test capi3-3.4 {
  sqlite3_errmsg $db2
} {unable to open database file}
do_test capi3-3.5 {
  sqlite3_close $db2
} {SQLITE_OK}
do_test capi3-3.6.1 {
  sqlite3_close $db2
} {SQLITE_MISUSE}
do_test capi3-3.6.2 {
  sqlite3_errmsg $db2
} {library routine called out of sequence}
ifcapable {utf16} {
  do_test capi3-3.6.3 {
    utf8 [sqlite3_errmsg16 $db2]
  } {library routine called out of sequence}
}

# rename sqlite3_open ""
# rename sqlite3_open_old sqlite3_open

ifcapable {utf16} {
do_test capi3-4.1 {
  set db2 [sqlite3_open16 [utf16 test.db] {}]
  sqlite3_errcode $db2
} {SQLITE_OK}
# FIX ME: Should test the db handle works.
do_test capi3-4.2 {
  sqlite3_close $db2
} {SQLITE_OK}
do_test capi3-4.3 {
  catch {
    set db2 [sqlite3_open16 [utf16 /bogus/path/test.db] {}]
  }
  sqlite3_errcode $db2
} {SQLITE_CANTOPEN}
do_test capi3-4.4 {
  utf8 [sqlite3_errmsg16 $db2]
} {unable to open database file}
do_test capi3-4.5 {
  sqlite3_close $db2
} {SQLITE_OK}
} ;# utf16

# This proc is used to test the following API calls:
#
# sqlite3_column_count
# sqlite3_column_name
# sqlite3_column_name16
# sqlite3_column_decltype
# sqlite3_column_decltype16
#
# $STMT is a compiled SQL statement. $test is a prefix
# to use for test names within this proc. $names is a list
# of the column names that should be returned by $STMT.
# $decltypes is a list of column declaration types for $STMT.
#
# Example:
#
# set STMT [sqlite3_prepare "SELECT 1, 2, 2;" -1 DUMMY]
# check_header test1.1 {1 2 3} {"" "" ""}
#
proc check_header {STMT test names decltypes} {

  # Use the return value of sqlite3_column_count() to build
  # a list of column indexes. i.e. If sqlite3_column_count
  # is 3, build the list {0 1 2}.
  set ::idxlist [list]
  set ::numcols [sqlite3_column_count $STMT]
  for {set i 0} {$i < $::numcols} {incr i} {lappend ::idxlist $i}

  # Column names in UTF-8
  do_test $test.1 {
    set cnamelist [list]
    foreach i $idxlist {lappend cnamelist [sqlite3_column_name $STMT $i]} 
    set cnamelist
  } $names

  # Column names in UTF-16
  ifcapable {utf16} {
    do_test $test.2 {
      set cnamelist [list]
      foreach i $idxlist {
        lappend cnamelist [utf8 [sqlite3_column_name16 $STMT $i]]
      }
      set cnamelist
    } $names
  }

  # Column names in UTF-8
  do_test $test.3 {
    set cnamelist [list]
    foreach i $idxlist {lappend cnamelist [sqlite3_column_name $STMT $i]} 
    set cnamelist
  } $names

  # Column names in UTF-16
  ifcapable {utf16} {
    do_test $test.4 {
      set cnamelist [list]
      foreach i $idxlist {
        lappend cnamelist [utf8 [sqlite3_column_name16 $STMT $i]]
      }
      set cnamelist
    } $names
  }

  # Column names in UTF-8
  do_test $test.5 {
    set cnamelist [list]
    foreach i $idxlist {lappend cnamelist [sqlite3_column_decltype $STMT $i]} 
    set cnamelist
  } $decltypes

  # Column declaration types in UTF-16
  ifcapable {utf16} {
    do_test $test.6 {
      set cnamelist [list]
      foreach i $idxlist {
        lappend cnamelist [utf8 [sqlite3_column_decltype16 $STMT $i]]
      }
      set cnamelist
    } $decltypes
  }


  # Test some out of range conditions:
  ifcapable {utf16} {
    do_test $test.7 {
      list \
        [sqlite3_column_name $STMT -1] \
        [sqlite3_column_name16 $STMT -1] \
        [sqlite3_column_decltype $STMT -1] \
        [sqlite3_column_decltype16 $STMT -1] \
        [sqlite3_column_name $STMT $numcols] \
        [sqlite3_column_name16 $STMT $numcols] \
        [sqlite3_column_decltype $STMT $numcols] \
        [sqlite3_column_decltype16 $STMT $numcols]
    } {{} {} {} {} {} {} {} {}}
  }

} 

# This proc is used to test the following APIs:
#
# sqlite3_data_count
# sqlite3_column_type
# sqlite3_column_int
# sqlite3_column_text
# sqlite3_column_text16
# sqlite3_column_double
#
# $STMT is a compiled SQL statement for which the previous call 
# to sqlite3_step returned SQLITE_ROW. $test is a prefix to use 
# for test names within this proc. $types is a list of the 
# manifest types for the current row. $ints, $doubles and $strings
# are lists of the integer, real and string representations of
# the values in the current row.
#
# Example:
#
# set STMT [sqlite3_prepare "SELECT 'hello', 1.1, NULL" -1 DUMMY]
# sqlite3_step $STMT
# check_data test1.2 {TEXT REAL NULL} {0 1 0} {0 1.1 0} {hello 1.1 {}}
#
proc check_data {STMT test types ints doubles strings} {

  # Use the return value of sqlite3_column_count() to build
  # a list of column indexes. i.e. If sqlite3_column_count
  # is 3, build the list {0 1 2}.
  set ::idxlist [list]
  set numcols [sqlite3_data_count $STMT]
  for {set i 0} {$i < $numcols} {incr i} {lappend ::idxlist $i}

# types
do_test $test.1 {
  set types [list]
  foreach i $idxlist {lappend types [sqlite3_column_type $STMT $i]}
  set types
} $types

# Integers
do_test $test.2 {
  set ints [list]
  foreach i $idxlist {lappend ints [sqlite3_column_int64 $STMT $i]}
  set ints
} $ints

# bytes
set lens [list]
foreach i $::idxlist {
  lappend lens [string length [lindex $strings $i]]
}
do_test $test.3 {
  set bytes [list]
  set lens [list]
  foreach i $idxlist {
    lappend bytes [sqlite3_column_bytes $STMT $i]
  }
  set bytes
} $lens

# bytes16
ifcapable {utf16} {
  set lens [list]
  foreach i $::idxlist {
    lappend lens [expr 2 * [string length [lindex $strings $i]]]
  }
  do_test $test.4 {
    set bytes [list]
    set lens [list]
    foreach i $idxlist {
      lappend bytes [sqlite3_column_bytes16 $STMT $i]
    }
    set bytes
  } $lens
}

# Blob
do_test $test.5 {
  set utf8 [list]
  foreach i $idxlist {lappend utf8 [sqlite3_column_blob $STMT $i]}
  set utf8
} $strings

# UTF-8
do_test $test.6 {
  set utf8 [list]
  foreach i $idxlist {lappend utf8 [sqlite3_column_text $STMT $i]}
  set utf8
} $strings

# Floats
do_test $test.7 {
  set utf8 [list]
  foreach i $idxlist {lappend utf8 [sqlite3_column_double $STMT $i]}
  set utf8
} $doubles

# UTF-16
ifcapable {utf16} {
  do_test $test.8 {
    set utf8 [list]
    foreach i $idxlist {lappend utf8 [utf8 [sqlite3_column_text16 $STMT $i]]}
    set utf8
  } $strings
}

# Integers
do_test $test.9 {
  set ints [list]
  foreach i $idxlist {lappend ints [sqlite3_column_int $STMT $i]}
  set ints
} $ints

# Floats
do_test $test.10 {
  set utf8 [list]
  foreach i $idxlist {lappend utf8 [sqlite3_column_double $STMT $i]}
  set utf8
} $doubles

# UTF-8
do_test $test.11 {
  set utf8 [list]
  foreach i $idxlist {lappend utf8 [sqlite3_column_text $STMT $i]}
  set utf8
} $strings

# Types
do_test $test.12 {
  set types [list]
  foreach i $idxlist {lappend types [sqlite3_column_type $STMT $i]}
  set types
} $types

# Test that an out of range request returns the equivalent of NULL
do_test $test.13 {
  sqlite3_column_int $STMT -1
} {0}
do_test $test.13 {
  sqlite3_column_text $STMT -1
} {}

}

do_test capi3-5.0 {
  execsql {
    CREATE TABLE t1(a VARINT, b BLOB, c VARCHAR(16));
    INSERT INTO t1 VALUES(1, 2, 3);
    INSERT INTO t1 VALUES('one', 'two', NULL);
    INSERT INTO t1 VALUES(1.2, 1.3, 1.4);
  }
  set sql "SELECT * FROM t1"
  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
  sqlite3_column_count $STMT
} 3

check_header $STMT capi3-5.1 {a b c} {VARINT BLOB VARCHAR(16)}
do_test capi3-5.2 {
  sqlite3_step $STMT
} SQLITE_ROW

check_header $STMT capi3-5.3 {a b c} {VARINT BLOB VARCHAR(16)}
check_data $STMT capi3-5.4 {INTEGER INTEGER TEXT} {1 2 3} {1.0 2.0 3.0} {1 2 3}

do_test capi3-5.5 {
  sqlite3_step $STMT
} SQLITE_ROW

check_header $STMT capi3-5.6 {a b c} {VARINT BLOB VARCHAR(16)}
check_data $STMT capi3-5.7 {TEXT TEXT NULL} {0 0 0} {0.0 0.0 0.0} {one two {}}

do_test capi3-5.8 {
  sqlite3_step $STMT
} SQLITE_ROW

check_header $STMT capi3-5.9 {a b c} {VARINT BLOB VARCHAR(16)}
check_data $STMT capi3-5.10 {FLOAT FLOAT TEXT} {1 1 1} {1.2 1.3 1.4} {1.2 1.3 1.4}

do_test capi3-5.11 {
  sqlite3_step $STMT
} SQLITE_DONE

do_test capi3-5.12 {
  sqlite3_finalize $STMT
} SQLITE_OK

set ::ENC [execsql {pragma encoding}]
db close

do_test capi3-6.0 {
  set DB [sqlite3_open test.db]
  sqlite3_key $DB xyzzy
  set sql {SELECT a FROM t1 order by rowid}
  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
  expr 0
} {0}
do_test capi3-6.1 {
  sqlite3_close $DB
} {SQLITE_BUSY}
do_test capi3-6.2 {
  sqlite3_step $STMT
} {SQLITE_ROW}
check_data $STMT capi3-6.3 {INTEGER} {1} {1.0} {1}
do_test capi3-6.3 {
  sqlite3_finalize $STMT
} {SQLITE_OK}
do_test capi3-6.4 {
  sqlite3_close $DB
} {SQLITE_OK}

if {![sqlite3 -has-codec]} {
  # Test what happens when the library encounters a newer file format.
  # Do this by updating the file format via the btree layer.
  do_test capi3-7.1 {
    set ::bt [btree_open test.db 10 0]
    btree_begin_transaction $::bt
    set meta [btree_get_meta $::bt]
    lset meta 2 4
    eval [concat btree_update_meta $::bt [lrange $meta 0 end]]
    btree_commit $::bt
    btree_close $::bt
  } {}
  do_test capi3-7.2 {
    sqlite3 db test.db
    catchsql {
      SELECT * FROM sqlite_master;
    }
  } {1 {unsupported file format}}
  db close
}

if {![sqlite3 -has-codec]} {
  # Now test that the library correctly handles bogus entries in the
  # sqlite_master table (schema corruption).
  do_test capi3-8.1 {
    file delete -force test.db
    file delete -force test.db-journal
    sqlite3 db test.db
    execsql {
      CREATE TABLE t1(a);
    }
    db close
  } {}
  do_test capi3-8.2 {
    set ::bt [btree_open test.db 10 0]
    btree_begin_transaction $::bt
    set ::bc [btree_cursor $::bt 1 1]

    # Build a 5-field row record consisting of 5 null records. This is
    # officially black magic.
    catch {unset data}
    set data [binary format c6 {6 0 0 0 0 0}]
    btree_insert $::bc 5 $data

    btree_close_cursor $::bc
    btree_commit $::bt
    btree_close $::bt
  } {}
  do_test capi3-8.3 {
    sqlite3 db test.db
    catchsql {
      SELECT * FROM sqlite_master;
    }
  } {1 {malformed database schema}}
  do_test capi3-8.4 {
    set ::bt [btree_open test.db 10 0]
    btree_begin_transaction $::bt
    set ::bc [btree_cursor $::bt 1 1]
  
    # Build a 5-field row record. The first field is a string 'table', and
    # subsequent fields are all NULL. Replace the other broken record with
    # this one and try to read the schema again. The broken record uses
    # either UTF-8 or native UTF-16 (if this file is being run by
    # utf16.test).
    if { [string match UTF-16* $::ENC] } {
      set data [binary format c6a10 {6 33 0 0 0 0} [utf16 table]]
    } else {
      set data [binary format c6a5 {6 23 0 0 0 0} table]
    }
    btree_insert $::bc 5 $data
  
    btree_close_cursor $::bc
    btree_commit $::bt
    btree_close $::bt
  } {};
  do_test capi3-8.5 {
    db close 
    sqlite3 db test.db
    catchsql {
      SELECT * FROM sqlite_master;
    }
  } {1 {malformed database schema}}
  db close
}
file delete -force test.db
file delete -force test.db-journal


# Test the english language string equivalents for sqlite error codes
set code2english [list \
SQLITE_OK         {not an error} \
SQLITE_ERROR      {SQL logic error or missing database} \
SQLITE_PERM       {access permission denied} \
SQLITE_ABORT      {callback requested query abort} \
SQLITE_BUSY       {database is locked} \
SQLITE_LOCKED     {database table is locked} \
SQLITE_NOMEM      {out of memory} \
SQLITE_READONLY   {attempt to write a readonly database} \
SQLITE_INTERRUPT  {interrupted} \
SQLITE_IOERR      {disk I/O error} \
SQLITE_CORRUPT    {database disk image is malformed} \
SQLITE_FULL       {database or disk is full} \
SQLITE_CANTOPEN   {unable to open database file} \
SQLITE_PROTOCOL   {database locking protocol failure} \
SQLITE_EMPTY      {table contains no data} \
SQLITE_SCHEMA     {database schema has changed} \
SQLITE_CONSTRAINT {constraint failed} \
SQLITE_MISMATCH   {datatype mismatch} \
SQLITE_MISUSE     {library routine called out of sequence} \
SQLITE_NOLFS      {kernel lacks large file support} \
SQLITE_AUTH       {authorization denied} \
SQLITE_FORMAT     {auxiliary database format error} \
SQLITE_RANGE      {bind or column index out of range} \
SQLITE_NOTADB     {file is encrypted or is not a database} \
unknownerror      {unknown error} \
]

set test_number 1
foreach {code english} $code2english {
  do_test capi3-9.$test_number "sqlite3_test_errstr $code" $english
  incr test_number
}

# Test the error message when a "real" out of memory occurs.
if {[info command sqlite_malloc_stat]!=""} {
set sqlite_malloc_fail 1
do_test capi3-10-1 {
  set ::DB [sqlite3 db test.db]
  sqlite_malloc_fail 1
  catchsql {
    select * from sqlite_master;
  }
} {1 {out of memory}}
do_test capi3-10-2 {
  sqlite3_errmsg $::DB
} {out of memory}
ifcapable {utf16} {
  do_test capi3-10-3 {
    utf8 [sqlite3_errmsg16 $::DB]
  } {out of memory}
}
db close
sqlite_malloc_fail 0
}

# The following tests - capi3-11.* - test that a COMMIT or ROLLBACK
# statement issued while there are still outstanding VMs that are part of
# the transaction fails.
set DB [sqlite3 db test.db]
sqlite_register_test_function $DB func
do_test capi3-11.1 {
  execsql {
    BEGIN;
    CREATE TABLE t1(a, b);
    INSERT INTO t1 VALUES(1, 'int');
    INSERT INTO t1 VALUES(2, 'notatype');
  }
} {}
do_test capi3-11.1.1 {
  sqlite3_get_autocommit $DB
} 0
do_test capi3-11.2 {
  set STMT [sqlite3_prepare $DB "SELECT func(b, a) FROM t1" -1 TAIL]
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test capi3-11.3 {
  catchsql {
    COMMIT;
  }
} {1 {cannot commit transaction - SQL statements in progress}}
do_test capi3-11.3.1 {
  sqlite3_get_autocommit $DB
} 0
do_test capi3-11.4 {
  sqlite3_step $STMT
} {SQLITE_ERROR}
do_test capi3-11.5 {
  sqlite3_finalize $STMT
} {SQLITE_ERROR}
do_test capi3-11.6 {
  catchsql {
    SELECT * FROM t1;
  }
} {0 {1 int 2 notatype}}
do_test capi3-11.6.1 {
  sqlite3_get_autocommit $DB
} 0
do_test capi3-11.7 {
  catchsql {
    COMMIT;
  }
} {0 {}}
do_test capi3-11.7.1 {
  sqlite3_get_autocommit $DB
} 1
do_test capi3-11.8 {
  execsql {
    CREATE TABLE t2(a);
    INSERT INTO t2 VALUES(1);
    INSERT INTO t2 VALUES(2);
    BEGIN;
    INSERT INTO t2 VALUES(3);
  }
} {}
do_test capi3-11.8.1 {
  sqlite3_get_autocommit $DB
} 0
do_test capi3-11.9 {
  set STMT [sqlite3_prepare $DB "SELECT a FROM t2" -1 TAIL]
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test capi3-11.9.1 {
  sqlite3_get_autocommit $DB
} 0
do_test capi3-11.9.2 {
  catchsql {
    ROLLBACK;
  }
} {1 {cannot rollback transaction - SQL statements in progress}}
do_test capi3-11.9.3 {
  sqlite3_get_autocommit $DB
} 0
do_test capi3-11.10 {
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test capi3-11.11 {
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test capi3-11.12 {
  sqlite3_step $STMT
} {SQLITE_DONE}
do_test capi3-11.13 {
  sqlite3_finalize $STMT
} {SQLITE_OK}
do_test capi3-11.14 {
  execsql {
    SELECT a FROM t2;
  }
} {1 2 3}
do_test capi3-11.14.1 {
  sqlite3_get_autocommit $DB
} 0
do_test capi3-11.15 {
  catchsql {
    ROLLBACK;
  }
} {0 {}}
do_test capi3-11.15.1 {
  sqlite3_get_autocommit $DB
} 1
do_test capi3-11.16 {
  execsql {
    SELECT a FROM t2;
  }
} {1 2}

# Sanity check on the definition of 'outstanding VM'. This means any VM
# that has had sqlite3_step() called more recently than sqlite3_finalize() or
# sqlite3_reset(). So a VM that has just been prepared or reset does not
# count as an active VM.
do_test capi3-11.17 {
  execsql {
    BEGIN;
  }
} {}
do_test capi3-11.18 {
  set STMT [sqlite3_prepare $DB "SELECT a FROM t1" -1 TAIL]
  catchsql {
    COMMIT;
  }
} {0 {}}
do_test capi3-11.19 {
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test capi3-11.20 {
  catchsql {
    BEGIN;
    COMMIT;
  }
} {1 {cannot commit transaction - SQL statements in progress}}
do_test capi3-11.20 {
  sqlite3_reset $STMT
  catchsql {
    COMMIT;
  }
} {0 {}}
do_test capi3-11.21 {
  sqlite3_finalize $STMT
} {SQLITE_OK}

# The following tests - capi3-12.* - check that it's Ok to start a
# transaction while other VMs are active, and that it's Ok to execute
# atomic updates in the same situation (so long as they are on a different
# table).
do_test capi3-12.1 {
  set STMT [sqlite3_prepare $DB "SELECT a FROM t2" -1 TAIL]
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test capi3-12.2 {
  catchsql {
    INSERT INTO t1 VALUES(3, NULL);
  }
} {0 {}}

do_test capi3-12.3 {
  catchsql {
    INSERT INTO t2 VALUES(4);
  }
} {1 {database table is locked}}
do_test capi3-12.4 {
  catchsql {
    BEGIN;
    INSERT INTO t1 VALUES(4, NULL);
  }
} {0 {}}
do_test capi3-12.5 {
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test capi3-12.6 {
  sqlite3_step $STMT
} {SQLITE_DONE}
do_test capi3-12.7 {
  sqlite3_finalize $STMT
} {SQLITE_OK}
do_test capi3-12.8 {
  execsql {
    COMMIT;
    SELECT a FROM t1;
  }
} {1 2 3 4}

# Test cases capi3-13.* test the sqlite3_clear_bindings() and 
# sqlite3_sleep APIs.
#
if {[llength [info commands sqlite3_clear_bindings]]>0} {
  do_test capi3-13.1 {
    execsql {
      DELETE FROM t1;
    }
    set STMT [sqlite3_prepare $DB "INSERT INTO t1 VALUES(?, ?)" -1 TAIL]
    sqlite3_step $STMT
  } {SQLITE_DONE}
  do_test capi3-13.2 {
    sqlite3_reset $STMT
    sqlite3_bind_text $STMT 1 hello 5
    sqlite3_bind_text $STMT 2 world 5
    sqlite3_step $STMT
  } {SQLITE_DONE}
  do_test capi3-13.3 {
    sqlite3_reset $STMT
    sqlite3_clear_bindings $STMT
    sqlite3_step $STMT
  } {SQLITE_DONE}
  do_test capi3-13-4 {
    sqlite3_finalize $STMT
    execsql {
      SELECT * FROM t1;
    }
  } {{} {} hello world {} {}}
}
if {[llength [info commands sqlite3_sleep]]>0} {
  do_test capi3-13-5 {
    set ms [sqlite3_sleep 80]
    expr {$ms==80 || $ms==1000}
  } {1}
}

# Ticket #1219:  Make sure binding APIs can handle a NULL pointer.
#
do_test capi3-14.1 {
  set rc [catch {sqlite3_bind_text 0 1 hello 5} msg]
  lappend rc $msg
} {1 SQLITE_MISUSE}


finish_test
