expr.test

sqlite-3.4.1,嵌入式数据库.是一个功能强大的开源数据库,给学习和研发以及小型公司的发展带来了全所未有的好处.

# 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.  The
# focus of this file is testing expressions.
#
# $Id: expr.test,v 1.57 2007/06/26 11:13:27 danielk1977 Exp $

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

# Create a table to work with.
#
execsql {CREATE TABLE test1(i1 int, i2 int, r1 real, r2 real, t1 text, t2 text)}
execsql {INSERT INTO test1 VALUES(1,2,1.1,2.2,'hello','world')}
proc test_expr {name settings expr result} {
  do_test $name [format {
    execsql {BEGIN; UPDATE test1 SET %s; SELECT %s FROM test1; ROLLBACK;}
  } $settings $expr] $result
}

test_expr expr-1.1 {i1=10, i2=20} {i1+i2} 30
test_expr expr-1.2 {i1=10, i2=20} {i1-i2} -10
test_expr expr-1.3 {i1=10, i2=20} {i1*i2} 200
test_expr expr-1.4 {i1=10, i2=20} {i1/i2} 0
test_expr expr-1.5 {i1=10, i2=20} {i2/i1} 2
test_expr expr-1.6 {i1=10, i2=20} {i2<i1} 0
test_expr expr-1.7 {i1=10, i2=20} {i2<=i1} 0
test_expr expr-1.8 {i1=10, i2=20} {i2>i1} 1
test_expr expr-1.9 {i1=10, i2=20} {i2>=i1} 1
test_expr expr-1.10 {i1=10, i2=20} {i2!=i1} 1
test_expr expr-1.11 {i1=10, i2=20} {i2=i1} 0
test_expr expr-1.12 {i1=10, i2=20} {i2<>i1} 1
test_expr expr-1.13 {i1=10, i2=20} {i2==i1} 0
test_expr expr-1.14 {i1=20, i2=20} {i2<i1} 0
test_expr expr-1.15 {i1=20, i2=20} {i2<=i1} 1
test_expr expr-1.16 {i1=20, i2=20} {i2>i1} 0
test_expr expr-1.17 {i1=20, i2=20} {i2>=i1} 1
test_expr expr-1.18 {i1=20, i2=20} {i2!=i1} 0
test_expr expr-1.19 {i1=20, i2=20} {i2=i1} 1
test_expr expr-1.20 {i1=20, i2=20} {i2<>i1} 0
test_expr expr-1.21 {i1=20, i2=20} {i2==i1} 1
test_expr expr-1.22 {i1=1, i2=2, r1=3.0} {i1+i2*r1} {7.0}
test_expr expr-1.23 {i1=1, i2=2, r1=3.0} {(i1+i2)*r1} {9.0}
test_expr expr-1.24 {i1=1, i2=2} {min(i1,i2,i1+i2,i1-i2)} {-1}
test_expr expr-1.25 {i1=1, i2=2} {max(i1,i2,i1+i2,i1-i2)} {3}
test_expr expr-1.26 {i1=1, i2=2} {max(i1,i2,i1+i2,i1-i2)} {3}
test_expr expr-1.27 {i1=1, i2=2} {i1==1 AND i2=2} {1}
test_expr expr-1.28 {i1=1, i2=2} {i1=2 AND i2=1} {0}
test_expr expr-1.29 {i1=1, i2=2} {i1=1 AND i2=1} {0}
test_expr expr-1.30 {i1=1, i2=2} {i1=2 AND i2=2} {0}
test_expr expr-1.31 {i1=1, i2=2} {i1==1 OR i2=2} {1}
test_expr expr-1.32 {i1=1, i2=2} {i1=2 OR i2=1} {0}
test_expr expr-1.33 {i1=1, i2=2} {i1=1 OR i2=1} {1}
test_expr expr-1.34 {i1=1, i2=2} {i1=2 OR i2=2} {1}
test_expr expr-1.35 {i1=1, i2=2} {i1-i2=-1} {1}
test_expr expr-1.36 {i1=1, i2=0} {not i1} {0}
test_expr expr-1.37 {i1=1, i2=0} {not i2} {1}
test_expr expr-1.38 {i1=1} {-i1} {-1}
test_expr expr-1.39 {i1=1} {+i1} {1}
test_expr expr-1.40 {i1=1, i2=2} {+(i2+i1)} {3}
test_expr expr-1.41 {i1=1, i2=2} {-(i2+i1)} {-3}
test_expr expr-1.42 {i1=1, i2=2} {i1|i2} {3}
test_expr expr-1.42b {i1=1, i2=2} {4|2} {6}
test_expr expr-1.43 {i1=1, i2=2} {i1&i2} {0}
test_expr expr-1.43b {i1=1, i2=2} {4&5} {4}
test_expr expr-1.44 {i1=1} {~i1} {-2}
test_expr expr-1.45 {i1=1, i2=3} {i1<<i2} {8}
test_expr expr-1.46 {i1=32, i2=3} {i1>>i2} {4}
test_expr expr-1.47 {i1=9999999999, i2=8888888888} {i1<i2} 0
test_expr expr-1.48 {i1=9999999999, i2=8888888888} {i1=i2} 0
test_expr expr-1.49 {i1=9999999999, i2=8888888888} {i1>i2} 1
test_expr expr-1.50 {i1=99999999999, i2=99999999998} {i1<i2} 0
test_expr expr-1.51 {i1=99999999999, i2=99999999998} {i1=i2} 0
test_expr expr-1.52 {i1=99999999999, i2=99999999998} {i1>i2} 1
test_expr expr-1.53 {i1=099999999999, i2=99999999999} {i1<i2} 0
test_expr expr-1.54 {i1=099999999999, i2=99999999999} {i1=i2} 1
test_expr expr-1.55 {i1=099999999999, i2=99999999999} {i1>i2} 0
test_expr expr-1.56 {i1=25, i2=11} {i1%i2} 3
test_expr expr-1.58 {i1=NULL, i2=1} {coalesce(i1+i2,99)} 99
test_expr expr-1.59 {i1=1, i2=NULL} {coalesce(i1+i2,99)} 99
test_expr expr-1.60 {i1=NULL, i2=NULL} {coalesce(i1+i2,99)} 99
test_expr expr-1.61 {i1=NULL, i2=1} {coalesce(i1-i2,99)} 99
test_expr expr-1.62 {i1=1, i2=NULL} {coalesce(i1-i2,99)} 99
test_expr expr-1.63 {i1=NULL, i2=NULL} {coalesce(i1-i2,99)} 99
test_expr expr-1.64 {i1=NULL, i2=1} {coalesce(i1*i2,99)} 99
test_expr expr-1.65 {i1=1, i2=NULL} {coalesce(i1*i2,99)} 99
test_expr expr-1.66 {i1=NULL, i2=NULL} {coalesce(i1*i2,99)} 99
test_expr expr-1.67 {i1=NULL, i2=1} {coalesce(i1/i2,99)} 99
test_expr expr-1.68 {i1=1, i2=NULL} {coalesce(i1/i2,99)} 99
test_expr expr-1.69 {i1=NULL, i2=NULL} {coalesce(i1/i2,99)} 99
test_expr expr-1.70 {i1=NULL, i2=1} {coalesce(i1<i2,99)} 99
test_expr expr-1.71 {i1=1, i2=NULL} {coalesce(i1>i2,99)} 99
test_expr expr-1.72 {i1=NULL, i2=NULL} {coalesce(i1<=i2,99)} 99
test_expr expr-1.73 {i1=NULL, i2=1} {coalesce(i1>=i2,99)} 99
test_expr expr-1.74 {i1=1, i2=NULL} {coalesce(i1!=i2,99)} 99
test_expr expr-1.75 {i1=NULL, i2=NULL} {coalesce(i1==i2,99)} 99
test_expr expr-1.76 {i1=NULL, i2=NULL} {coalesce(not i1,99)} 99
test_expr expr-1.77 {i1=NULL, i2=NULL} {coalesce(-i1,99)} 99
test_expr expr-1.78 {i1=NULL, i2=NULL} {coalesce(i1 IS NULL AND i2=5,99)} 99
test_expr expr-1.79 {i1=NULL, i2=NULL} {coalesce(i1 IS NULL OR i2=5,99)} 1
test_expr expr-1.80 {i1=NULL, i2=NULL} {coalesce(i1=5 AND i2 IS NULL,99)} 99
test_expr expr-1.81 {i1=NULL, i2=NULL} {coalesce(i1=5 OR i2 IS NULL,99)} 1
test_expr expr-1.82 {i1=NULL, i2=3} {coalesce(min(i1,i2,1),99)} 99
test_expr expr-1.83 {i1=NULL, i2=3} {coalesce(max(i1,i2,1),99)} 99
test_expr expr-1.84 {i1=3, i2=NULL} {coalesce(min(i1,i2,1),99)} 99
test_expr expr-1.85 {i1=3, i2=NULL} {coalesce(max(i1,i2,1),99)} 99
test_expr expr-1.86 {i1=3, i2=8} {5 between i1 and i2} 1
test_expr expr-1.87 {i1=3, i2=8} {5 not between i1 and i2} 0
test_expr expr-1.88 {i1=3, i2=8} {55 between i1 and i2} 0
test_expr expr-1.89 {i1=3, i2=8} {55 not between i1 and i2} 1
test_expr expr-1.90 {i1=3, i2=NULL} {5 between i1 and i2} {{}}
test_expr expr-1.91 {i1=3, i2=NULL} {5 not between i1 and i2} {{}}
test_expr expr-1.92 {i1=3, i2=NULL} {2 between i1 and i2} 0
test_expr expr-1.93 {i1=3, i2=NULL} {2 not between i1 and i2} 1
test_expr expr-1.94 {i1=NULL, i2=8} {2 between i1 and i2} {{}}
test_expr expr-1.95 {i1=NULL, i2=8} {2 not between i1 and i2} {{}}
test_expr expr-1.94 {i1=NULL, i2=8} {55 between i1 and i2} 0
test_expr expr-1.95 {i1=NULL, i2=8} {55 not between i1 and i2} 1
test_expr expr-1.96 {i1=NULL, i2=3} {coalesce(i1<<i2,99)} 99
test_expr expr-1.97 {i1=32, i2=NULL} {coalesce(i1>>i2,99)} 99
test_expr expr-1.98 {i1=NULL, i2=NULL} {coalesce(i1|i2,99)} 99
test_expr expr-1.99 {i1=32, i2=NULL} {coalesce(i1&i2,99)} 99
test_expr expr-1.100 {i1=1, i2=''} {i1=i2} 0
test_expr expr-1.101 {i1=0, i2=''} {i1=i2} 0

# Check for proper handling of 64-bit integer values.
#
test_expr expr-1.102 {i1=40, i2=1} {i2<<i1} 1099511627776

test_expr expr-1.103 {i1=0} {(-2147483648.0 % -1)} 0.0
test_expr expr-1.104 {i1=0} {(-9223372036854775808.0 % -1)} 0.0
test_expr expr-1.105 {i1=0} {(-9223372036854775808.0 / -1)>1} 1

test_expr expr-1.106 {i1=0} {(1<<63)/-1} -9223372036854775808
test_expr expr-1.107 {i1=0} {(1<<63)%-1} 0

test_expr expr-2.1 {r1=1.23, r2=2.34} {r1+r2} 3.57
test_expr expr-2.2 {r1=1.23, r2=2.34} {r1-r2} -1.11
test_expr expr-2.3 {r1=1.23, r2=2.34} {r1*r2} 2.8782
set tcl_precision 15
test_expr expr-2.4 {r1=1.23, r2=2.34} {r1/r2} 0.525641025641026
test_expr expr-2.5 {r1=1.23, r2=2.34} {r2/r1} 1.90243902439024
test_expr expr-2.6 {r1=1.23, r2=2.34} {r2<r1} 0
test_expr expr-2.7 {r1=1.23, r2=2.34} {r2<=r1} 0
test_expr expr-2.8 {r1=1.23, r2=2.34} {r2>r1} 1
test_expr expr-2.9 {r1=1.23, r2=2.34} {r2>=r1} 1
test_expr expr-2.10 {r1=1.23, r2=2.34} {r2!=r1} 1
test_expr expr-2.11 {r1=1.23, r2=2.34} {r2=r1} 0
test_expr expr-2.12 {r1=1.23, r2=2.34} {r2<>r1} 1
test_expr expr-2.13 {r1=1.23, r2=2.34} {r2==r1} 0
test_expr expr-2.14 {r1=2.34, r2=2.34} {r2<r1} 0
test_expr expr-2.15 {r1=2.34, r2=2.34} {r2<=r1} 1
test_expr expr-2.16 {r1=2.34, r2=2.34} {r2>r1} 0
test_expr expr-2.17 {r1=2.34, r2=2.34} {r2>=r1} 1
test_expr expr-2.18 {r1=2.34, r2=2.34} {r2!=r1} 0
test_expr expr-2.19 {r1=2.34, r2=2.34} {r2=r1} 1
test_expr expr-2.20 {r1=2.34, r2=2.34} {r2<>r1} 0
test_expr expr-2.21 {r1=2.34, r2=2.34} {r2==r1} 1
test_expr expr-2.22 {r1=1.23, r2=2.34} {min(r1,r2,r1+r2,r1-r2)} {-1.11}
test_expr expr-2.23 {r1=1.23, r2=2.34} {max(r1,r2,r1+r2,r1-r2)} {3.57}
test_expr expr-2.24 {r1=25.0, r2=11.0} {r1%r2} 3.0
test_expr expr-2.25 {r1=1.23, r2=NULL} {coalesce(r1+r2,99.0)} 99.0
test_expr expr-2.26 {r1=1e300, r2=1e300} {coalesce((r1*r2)*0.0,99.0)} 99.0

test_expr expr-3.1 {t1='abc', t2='xyz'} {t1<t2} 1
test_expr expr-3.2 {t1='xyz', t2='abc'} {t1<t2} 0
test_expr expr-3.3 {t1='abc', t2='abc'} {t1<t2} 0
test_expr expr-3.4 {t1='abc', t2='xyz'} {t1<=t2} 1
test_expr expr-3.5 {t1='xyz', t2='abc'} {t1<=t2} 0
test_expr expr-3.6 {t1='abc', t2='abc'} {t1<=t2} 1
test_expr expr-3.7 {t1='abc', t2='xyz'} {t1>t2} 0
test_expr expr-3.8 {t1='xyz', t2='abc'} {t1>t2} 1
test_expr expr-3.9 {t1='abc', t2='abc'} {t1>t2} 0
test_expr expr-3.10 {t1='abc', t2='xyz'} {t1>=t2} 0
test_expr expr-3.11 {t1='xyz', t2='abc'} {t1>=t2} 1
test_expr expr-3.12 {t1='abc', t2='abc'} {t1>=t2} 1
test_expr expr-3.13 {t1='abc', t2='xyz'} {t1=t2} 0
test_expr expr-3.14 {t1='xyz', t2='abc'} {t1=t2} 0
test_expr expr-3.15 {t1='abc', t2='abc'} {t1=t2} 1
test_expr expr-3.16 {t1='abc', t2='xyz'} {t1==t2} 0
test_expr expr-3.17 {t1='xyz', t2='abc'} {t1==t2} 0
test_expr expr-3.18 {t1='abc', t2='abc'} {t1==t2} 1
test_expr expr-3.19 {t1='abc', t2='xyz'} {t1<>t2} 1
test_expr expr-3.20 {t1='xyz', t2='abc'} {t1<>t2} 1
test_expr expr-3.21 {t1='abc', t2='abc'} {t1<>t2} 0
test_expr expr-3.22 {t1='abc', t2='xyz'} {t1!=t2} 1
test_expr expr-3.23 {t1='xyz', t2='abc'} {t1!=t2} 1
test_expr expr-3.24 {t1='abc', t2='abc'} {t1!=t2} 0
test_expr expr-3.25 {t1=NULL, t2='hi'} {t1 isnull} 1
test_expr expr-3.25b {t1=NULL, t2='hi'} {t1 is null} 1
test_expr expr-3.26 {t1=NULL, t2='hi'} {t2 isnull} 0
test_expr expr-3.27 {t1=NULL, t2='hi'} {t1 notnull} 0
test_expr expr-3.28 {t1=NULL, t2='hi'} {t2 notnull} 1
test_expr expr-3.28b {t1=NULL, t2='hi'} {t2 is not null} 1
test_expr expr-3.29 {t1='xyz', t2='abc'} {t1||t2} {xyzabc}
test_expr expr-3.30 {t1=NULL, t2='abc'} {t1||t2} {{}}
test_expr expr-3.31 {t1='xyz', t2=NULL} {t1||t2} {{}}
test_expr expr-3.32 {t1='xyz', t2='abc'} {t1||' hi '||t2} {{xyz hi abc}}
test_expr epxr-3.33 {t1='abc', t2=NULL} {coalesce(t1<t2,99)} 99
test_expr epxr-3.34 {t1='abc', t2=NULL} {coalesce(t2<t1,99)} 99
test_expr epxr-3.35 {t1='abc', t2=NULL} {coalesce(t1>t2,99)} 99
test_expr epxr-3.36 {t1='abc', t2=NULL} {coalesce(t2>t1,99)} 99
test_expr epxr-3.37 {t1='abc', t2=NULL} {coalesce(t1<=t2,99)} 99
test_expr epxr-3.38 {t1='abc', t2=NULL} {coalesce(t2<=t1,99)} 99
test_expr epxr-3.39 {t1='abc', t2=NULL} {coalesce(t1>=t2,99)} 99
test_expr epxr-3.40 {t1='abc', t2=NULL} {coalesce(t2>=t1,99)} 99
test_expr epxr-3.41 {t1='abc', t2=NULL} {coalesce(t1==t2,99)} 99
test_expr epxr-3.42 {t1='abc', t2=NULL} {coalesce(t2==t1,99)} 99
test_expr epxr-3.43 {t1='abc', t2=NULL} {coalesce(t1!=t2,99)} 99
test_expr epxr-3.44 {t1='abc', t2=NULL} {coalesce(t2!=t1,99)} 99

test_expr expr-4.1 {t1='abc', t2='Abc'} {t1<t2} 0
test_expr expr-4.2 {t1='abc', t2='Abc'} {t1>t2} 1
test_expr expr-4.3 {t1='abc', t2='Bbc'} {t1<t2} 0
test_expr expr-4.4 {t1='abc', t2='Bbc'} {t1>t2} 1
test_expr expr-4.5 {t1='0', t2='0.0'} {t1==t2} 0
test_expr expr-4.6 {t1='0.000', t2='0.0'} {t1==t2} 0
test_expr expr-4.7 {t1=' 0.000', t2=' 0.0'} {t1==t2} 0
test_expr expr-4.8 {t1='0.0', t2='abc'} {t1<t2} 1
test_expr expr-4.9 {t1='0.0', t2='abc'} {t1==t2} 0
test_expr expr-4.10 {r1='0.0', r2='abc'} {r1>r2} 0
test_expr expr-4.11 {r1='abc', r2='Abc'} {r1<r2} 0
test_expr expr-4.12 {r1='abc', r2='Abc'} {r1>r2} 1