sqlite/test/types.test

# 2001 September 15
#
# 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. 
#
# $Id:


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

#
# Test cases are organized as follows:
#
# types-1.*: Insert some records with integers of various sizes, checking 
#            that the integers are stored correctly and can be retrieved.
# types-2.*: Insert and retrieve some records with reals.
# types-3.*: Insert and retrieve some records with NULLs.
# types-4.*: Insert and retrieve some records with strings of various sizes.
# types-5.*: Some tests inserting and retrieving records with several
#            fields each.
#

# Open the table with root-page $rootpage at the btree
# level. Return a list that is the length of each record
# in the table, in the tables default scanning order.
proc record_sizes {rootpage} {
  set bt [btree_open test.db 10 0]
  set c [btree_cursor $bt $rootpage 0]
  btree_first $c
  while 1 {
    lappend res [btree_payload_size $c]
    if {[btree_next $c]} break
  }
  btree_close_cursor $c
  btree_close $bt
  set res
}


# Create a table and insert some 1-byte integers. Make sure they 
# can be read back OK. These should be 3 byte records.
do_test types-1.1 {
  execsql {
    CREATE TABLE t1(a integer);
    INSERT INTO t1 VALUES(0);
    INSERT INTO t1 VALUES(120);
    INSERT INTO t1 VALUES(-120);
  }
} {}
do_test types-1.2 {
  execsql {
    SELECT a FROM t1;
  }
} {0 120 -120}

# Try some 2-byte integers (4 byte records)
do_test types-1.3 {
  execsql {
    INSERT INTO t1 VALUES(30000);
    INSERT INTO t1 VALUES(-30000);
  }
} {}
do_test types-1.4 {
  execsql {
    SELECT a FROM t1;
  }
} {0 120 -120 30000 -30000}

# 4-byte integers (6 byte records)
do_test types-1.5 {
  execsql {
    INSERT INTO t1 VALUES(2100000000);
    INSERT INTO t1 VALUES(-2100000000);
  }
} {}
do_test types-1.6 {
  execsql {
    SELECT a FROM t1;
  }
} {0 120 -120 30000 -30000 2100000000 -2100000000}

# 8-byte integers (10 byte records)
do_test types-1.7 {
  execsql {
    INSERT INTO t1 VALUES(9000000*1000000*1000000);
    INSERT INTO t1 VALUES(-9000000*1000000*1000000);
  }
} {}
do_test types-1.8 {
  execsql {
    SELECT a FROM t1;
  }
} [list 0 120 -120 30000 -30000 2100000000 -2100000000 \
        9000000000000000000 -9000000000000000000]

# Check that all the record sizes are as we expected.
do_test types-1.9 {
  set root [db eval {select rootpage from sqlite_master where name = 't1'}]
  record_sizes $root
} {3 3 3 4 4 6 6 10 10}

# Insert some reals. These should be 10 byte records.
do_test types-2.1 {
  execsql {
    CREATE TABLE t2(a float);
    INSERT INTO t2 VALUES(0.0 + 0.0);
    INSERT INTO t2 VALUES(12345.678 + 0.0);
    INSERT INTO t2 VALUES(-12345.678 + 0.0);
  }
} {}
do_test types-2.2 {
  execsql {
    SELECT a FROM t2;
  }
} {0 12345.678 -12345.678}

# Check that all the record sizes are as we expected.
do_test types-2.3 {
  set root [db eval {select rootpage from sqlite_master where name = 't2'}]
  record_sizes $root
} {10 10 10}

# Insert a NULL. This should be a two byte record.
do_test types-3.1 {
  execsql {
    CREATE TABLE t3(a nullvalue);
    INSERT INTO t3 VALUES(NULL);
  }
} {}
do_test types-3.2 {
  execsql {
    SELECT a ISNULL FROM t3;
  }
} {1}

# Check that all the record sizes are as we expected.
do_test types-3.3 {
  set root [db eval {select rootpage from sqlite_master where name = 't3'}]
  record_sizes $root
} {2}

# Insert a couple of strings.
do_test types-4.1 {
  set string10 abcdefghij
  set string500 [string repeat $string10 50]
  set string500000 [string repeat $string10 50000]

  execsql "
    CREATE TABLE t4(a string);
    INSERT INTO t4 VALUES('$string10');
    INSERT INTO t4 VALUES('$string500');
    INSERT INTO t4 VALUES('$string500000');
  "
} {}
do_test types-4.2 {
  execsql {
    SELECT a FROM t4;
  }
} [list $string10 $string500 $string500000]

# Check that all the record sizes are as we expected.
do_test types-4.3 {
  set root [db eval {select rootpage from sqlite_master where name = 't4'}]
  record_sizes $root
} {13 504 500005}

do_test types-5.1 {
  execsql {
    DROP TABLE t1;
    DROP TABLE t2;
    DROP TABLE t3;
    DROP TABLE t4;
    CREATE TABLE t1(a, b, c);
  }
} {}
do_test types-5.2 {
  set string10 abcdefghij
  set string500 [string repeat $string10 50]
  set string500000 [string repeat $string10 50000]

  execsql "INSERT INTO t1 VALUES(NULL, '$string10', 4000);"
  execsql "INSERT INTO t1 VALUES('$string500', 4000, NULL);"
  execsql "INSERT INTO t1 VALUES(4000, NULL, '$string500000');"
} {}
do_test types-5.3 {
  execsql {
    SELECT * FROM t1;
  }
} [list {} $string10 4000 $string500 4000 {} 4000 {} $string500000]


finish_test