expr.test

sqlite数据库源码

}

# Theses tests are for when SQLite assumes iso8859 characters.
#
if {[sqlite -encoding]=="iso8859"} {
  set go 1
  if {[info command encoding]!=""} {
    if {[catch {encoding system iso8859-1} msg]} {
      puts "skipping tests of LIKE operator: $msg"
      set go 0
    }
  }
  if {$go} {
    test_expr expr-5.50 "t1='a\266c', t2='A_C'"  {t1 LIKE t2} 1
    test_expr expr-5.51 "t1='a\347', t2='A_'"  {t1 LIKE t2} 1
    test_expr expr-5.52 "t1='ax\351', t2='A_\351'"  {t1 LIKE t2} 1
    test_expr expr-5.53 "t1='ax\241', t2='A_%'"  {t1 LIKE t2} 1
  }
}
test_expr expr-5.54 {t1='abc', t2=NULL} {t1 LIKE t2} {{}}
test_expr expr-5.55 {t1='abc', t2=NULL} {t1 NOT LIKE t2} {{}}
test_expr expr-5.56 {t1='abc', t2=NULL} {t2 LIKE t1} {{}}
test_expr expr-5.57 {t1='abc', t2=NULL} {t2 NOT LIKE t1} {{}}


test_expr expr-6.1 {t1='abc', t2='xyz'} {t1 GLOB t2} 0
test_expr expr-6.2 {t1='abc', t2='ABC'} {t1 GLOB t2} 0
test_expr expr-6.3 {t1='abc', t2='A?C'} {t1 GLOB t2} 0
test_expr expr-6.4 {t1='abc', t2='a?c'} {t1 GLOB t2} 1
test_expr expr-6.5 {t1='abc', t2='abc?'} {t1 GLOB t2} 0
test_expr expr-6.6 {t1='abc', t2='A*C'} {t1 GLOB t2} 0
test_expr expr-6.7 {t1='abc', t2='a*c'} {t1 GLOB t2} 1
test_expr expr-6.8 {t1='abxyzzyc', t2='a*c'} {t1 GLOB t2} 1
test_expr expr-6.9 {t1='abxyzzy', t2='a*c'} {t1 GLOB t2} 0
test_expr expr-6.10 {t1='abxyzzycx', t2='a*c'} {t1 GLOB t2} 0
test_expr expr-6.11 {t1='abc', t2='xyz'} {t1 NOT GLOB t2} 1
test_expr expr-6.12 {t1='abc', t2='abc'} {t1 NOT GLOB t2} 0
test_expr expr-6.13 {t1='abc', t2='a[bx]c'} {t1 GLOB t2} 1
test_expr expr-6.14 {t1='abc', t2='a[cx]c'} {t1 GLOB t2} 0
test_expr expr-6.15 {t1='abc', t2='a[a-d]c'} {t1 GLOB t2} 1
test_expr expr-6.16 {t1='abc', t2='a[^a-d]c'} {t1 GLOB t2} 0
test_expr expr-6.17 {t1='abc', t2='a[A-Dc]c'} {t1 GLOB t2} 0
test_expr expr-6.18 {t1='abc', t2='a[^A-Dc]c'} {t1 GLOB t2} 1
test_expr expr-6.19 {t1='abc', t2='a[]b]c'} {t1 GLOB t2} 1
test_expr expr-6.20 {t1='abc', t2='a[^]b]c'} {t1 GLOB t2} 0
test_expr expr-6.21a {t1='abcdefg', t2='a*[de]g'} {t1 GLOB t2} 0
test_expr expr-6.21b {t1='abcdefg', t2='a*[df]g'} {t1 GLOB t2} 1
test_expr expr-6.21c {t1='abcdefg', t2='a*[d-h]g'} {t1 GLOB t2} 1
test_expr expr-6.21d {t1='abcdefg', t2='a*[b-e]g'} {t1 GLOB t2} 0
test_expr expr-6.22a {t1='abcdefg', t2='a*[^de]g'} {t1 GLOB t2} 1
test_expr expr-6.22b {t1='abcdefg', t2='a*[^def]g'} {t1 GLOB t2} 0
test_expr expr-6.23 {t1='abcdefg', t2='a*?g'} {t1 GLOB t2} 1
test_expr expr-6.24 {t1='ac', t2='a*c'} {t1 GLOB t2} 1
test_expr expr-6.25 {t1='ac', t2='a*?c'} {t1 GLOB t2} 0


# These tests only work on versions of TCL that support Unicode
#
if {"\u1234"!="u1234" && [sqlite -encoding]=="UTF-8"} {
  test_expr expr-6.26 "t1='a\u0080c', t2='a?c'" {t1 GLOB t2} 1
  test_expr expr-6.27 "t1='a\u07ffc', t2='a?c'" {t1 GLOB t2} 1
  test_expr expr-6.28 "t1='a\u0800c', t2='a?c'" {t1 GLOB t2} 1
  test_expr expr-6.29 "t1='a\uffffc', t2='a?c'" {t1 GLOB t2} 1
  test_expr expr-6.30 "t1='a\u1234', t2='a?'" {t1 GLOB t2} 1
  test_expr expr-6.31 "t1='a\u1234', t2='a??'" {t1 GLOB t2} 0
  test_expr expr-6.32 "t1='ax\u1234', t2='a?\u1234'" {t1 GLOB t2} 1
  test_expr expr-6.33 "t1='ax\u1234', t2='a*\u1234'" {t1 GLOB t2} 1
  test_expr expr-6.34 "t1='ax\u1234y\u1234', t2='a*\u1234'" {t1 GLOB t2} 1
  test_expr expr-6.35 "t1='a\u1234b', t2='a\[x\u1234y\]b'" {t1 GLOB t2} 1
  test_expr expr-6.36 "t1='a\u1234b', t2='a\[\u1233-\u1235\]b'" {t1 GLOB t2} 1
  test_expr expr-6.37 "t1='a\u1234b', t2='a\[\u1234-\u124f\]b'" {t1 GLOB t2} 1
  test_expr expr-6.38 "t1='a\u1234b', t2='a\[\u1235-\u124f\]b'" {t1 GLOB t2} 0
  test_expr expr-6.39 "t1='a\u1234b', t2='a\[a-\u1235\]b'" {t1 GLOB t2} 1
  test_expr expr-6.40 "t1='a\u1234b', t2='a\[a-\u1234\]b'" {t1 GLOB t2} 1
  test_expr expr-6.41 "t1='a\u1234b', t2='a\[a-\u1233\]b'" {t1 GLOB t2} 0
}

test_expr expr-6.51 {t1='ABC', t2='xyz'} {t1 GLOB t2} 0
test_expr expr-6.52 {t1='ABC', t2='abc'} {t1 GLOB t2} 0
test_expr expr-6.53 {t1='ABC', t2='a?c'} {t1 GLOB t2} 0
test_expr expr-6.54 {t1='ABC', t2='A?C'} {t1 GLOB t2} 1
test_expr expr-6.55 {t1='ABC', t2='abc?'} {t1 GLOB t2} 0
test_expr expr-6.56 {t1='ABC', t2='a*c'} {t1 GLOB t2} 0
test_expr expr-6.57 {t1='ABC', t2='A*C'} {t1 GLOB t2} 1
test_expr expr-6.58 {t1='ABxyzzyC', t2='A*C'} {t1 GLOB t2} 1
test_expr expr-6.59 {t1='ABxyzzy', t2='A*C'} {t1 GLOB t2} 0
test_expr expr-6.60 {t1='ABxyzzyCx', t2='A*C'} {t1 GLOB t2} 0
test_expr expr-6.61 {t1='ABC', t2='xyz'} {t1 NOT GLOB t2} 1
test_expr expr-6.62 {t1='ABC', t2='ABC'} {t1 NOT GLOB t2} 0
test_expr expr-6.63 {t1='ABC', t2='A[Bx]C'} {t1 GLOB t2} 1
test_expr expr-6.64 {t1='ABC', t2='A[Cx]C'} {t1 GLOB t2} 0
test_expr expr-6.65 {t1='ABC', t2='A[A-D]C'} {t1 GLOB t2} 1
test_expr expr-6.66 {t1='ABC', t2='A[^A-D]C'} {t1 GLOB t2} 0
test_expr expr-6.67 {t1='ABC', t2='A[a-dC]C'} {t1 GLOB t2} 0
test_expr expr-6.68 {t1='ABC', t2='A[^a-dC]C'} {t1 GLOB t2} 1
test_expr expr-6.69a {t1='ABC', t2='A[]B]C'} {t1 GLOB t2} 1
test_expr expr-6.69b {t1='A]C', t2='A[]B]C'} {t1 GLOB t2} 1
test_expr expr-6.70a {t1='ABC', t2='A[^]B]C'} {t1 GLOB t2} 0
test_expr expr-6.70b {t1='AxC', t2='A[^]B]C'} {t1 GLOB t2} 1
test_expr expr-6.70c {t1='A]C', t2='A[^]B]C'} {t1 GLOB t2} 0
test_expr expr-6.71 {t1='ABCDEFG', t2='A*[DE]G'} {t1 GLOB t2} 0
test_expr expr-6.72 {t1='ABCDEFG', t2='A*[^DE]G'} {t1 GLOB t2} 1
test_expr expr-6.73 {t1='ABCDEFG', t2='A*?G'} {t1 GLOB t2} 1
test_expr expr-6.74 {t1='AC', t2='A*C'} {t1 GLOB t2} 1
test_expr expr-6.75 {t1='AC', t2='A*?C'} {t1 GLOB t2} 0

# Theses tests are for when SQLite assumes iso8859 characters.
#
if {[sqlite -encoding]=="iso8859"} {
  set go 1
  if {[info command encoding]!=""} {
    if {[catch {encoding system iso8859-1} msg]} {
      puts "skipping tests of GLOB operator: $msg"
      set go 0
    }
  }
  if {$go} {
    test_expr expr-6.50 "t1='a\266c', t2='a?c'" {t1 GLOB t2} 1
    test_expr expr-6.51 "t1='a\266', t2='a?'" {t1 GLOB t2} 1
    test_expr expr-6.52 "t1='a\266', t2='a??'" {t1 GLOB t2} 0
    test_expr expr-6.53 "t1='ax\266', t2='a??'" {t1 GLOB t2} 1
    test_expr expr-6.54 "t1='ax\266', t2='a?\266'" {t1 GLOB t2} 1
    test_expr expr-6.55 "t1='ax\266y\266', t2='a*\266'" {t1 GLOB t2} 1
    test_expr expr-6.56 "t1='a\266b', t2='a\[x\266y\]b'" {t1 GLOB t2} 1
    test_expr expr-6.57 "t1='a\266b', t2='a\[\260-\270\]b'" {t1 GLOB t2} 1
    test_expr expr-6.58 "t1='a\266b', t2='a\[\266-\270\]b'" {t1 GLOB t2} 1
    test_expr expr-6.59 "t1='a\266b', t2='a\[\267-\270\]b'" {t1 GLOB t2} 0
    test_expr expr-6.60 "t1='a\266b', t2='a\[x-\267\]b'" {t1 GLOB t2} 1
    test_expr expr-6.61 "t1='a\266b', t2='a\[x-\266\]b'" {t1 GLOB t2} 1
    test_expr expr-6.62 "t1='a\266b', t2='a\[x-\265\]b'" {t1 GLOB t2} 0
  }
}
test_expr expr-6.63 {t1=NULL, t2='a*?c'} {t1 GLOB t2} {{}}
test_expr expr-6.64 {t1='ac', t2=NULL} {t1 GLOB t2} {{}}
test_expr expr-6.65 {t1=NULL, t2='a*?c'} {t1 NOT GLOB t2} {{}}
test_expr expr-6.66 {t1='ac', t2=NULL} {t1 NOT GLOB t2} {{}}

test_expr expr-case.1 {i1=1, i2=2} \
	{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} ne
test_expr expr-case.2 {i1=2, i2=2} \
	{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} eq
test_expr expr-case.3 {i1=NULL, i2=2} \
	{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} ne
test_expr expr-case.4 {i1=2, i2=NULL} \
	{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} ne
test_expr expr-case.5 {i1=2} \
	{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 'error' END} two
test_expr expr-case.6 {i1=1} \
	{CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} one
test_expr expr-case.7 {i1=2} \
	{CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} error
test_expr expr-case.8 {i1=3} \
	{CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} error
test_expr expr-case.9 {i1=3} \
	{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 'error' END} error
test_expr expr-case.10 {i1=3} \
	{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' END} {{}}
test_expr expr-case.11 {i1=null} \
	{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 3 END} 3
test_expr expr-case.12 {i1=1} \
	{CASE i1 WHEN 1 THEN null WHEN 2 THEN 'two' ELSE 3 END} {{}}
test_expr expr-case.13 {i1=7} \
	{ CASE WHEN i1 < 5 THEN 'low' 
	       WHEN i1 < 10 THEN 'medium' 
               WHEN i1 < 15 THEN 'high' ELSE 'error' END} medium


# The sqliteExprIfFalse and sqliteExprIfTrue routines are only
# executed as part of a WHERE clause.  Create a table suitable
# for testing these functions.
#
execsql {DROP TABLE test1}
execsql {CREATE TABLE test1(a int, b int);}
for {set i 1} {$i<=20} {incr i} {
  execsql "INSERT INTO test1 VALUES($i,[expr {int(pow(2,$i))}])"
}
execsql "INSERT INTO test1 VALUES(NULL,0)"
do_test expr-7.1 {
  execsql {SELECT * FROM test1 ORDER BY a}
} {{} 0 1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024 11 2048 12 4096 13 8192 14 16384 15 32768 16 65536 17 131072 18 262144 19 524288 20 1048576}

proc test_expr2 {name expr result} {
  do_test $name [format {
    execsql {SELECT a FROM test1 WHERE %s ORDER BY a}
  } $expr] $result
}

test_expr2 expr-7.2  {a<10 AND a>8}                  {9}
test_expr2 expr-7.3  {a<=10 AND a>=8}                {8 9 10}
test_expr2 expr-7.4  {a>=8 AND a<=10}                {8 9 10}
test_expr2 expr-7.5  {a>=20 OR a<=1}                 {1 20}
test_expr2 expr-7.6  {b!=4 AND a<=3}                 {1 3}
test_expr2 expr-7.7  {b==8 OR b==16 OR b==32}        {3 4 5}
test_expr2 expr-7.8  {NOT b<>8 OR b==1024}           {3 10}
test_expr2 expr-7.9  {b LIKE '10%'}                  {10 20}
test_expr2 expr-7.10 {b LIKE '_4'}                   {6}
test_expr2 expr-7.11 {a GLOB '1?'}            {10 11 12 13 14 15 16 17 18 19}
test_expr2 expr-7.12 {b GLOB '1*4'}                  {10 14}
test_expr2 expr-7.13 {b GLOB '*1[456]'}              {4}
test_expr2 expr-7.14 {a ISNULL}                      {{}}
test_expr2 expr-7.15 {a NOTNULL AND a<3}             {1 2}
test_expr2 expr-7.16 {a AND a<3}                     {1 2}
test_expr2 expr-7.17 {NOT a}                         {}
test_expr2 expr-7.18 {a==11 OR (b>1000 AND b<2000)}  {10 11}
test_expr2 expr-7.19 {a<=1 OR a>=20}                 {1 20}
test_expr2 expr-7.20 {a<1 OR a>20}                   {}
test_expr2 expr-7.21 {a>19 OR a<1}                   {20}
test_expr2 expr-7.22 {a!=1 OR a=100} \
                         {2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
test_expr2 expr-7.23 {(a notnull AND a<4) OR a==8}   {1 2 3 8}
test_expr2 expr-7.24 {a LIKE '2_' OR a==8}           {8 20}
test_expr2 expr-7.25 {a GLOB '2?' OR a==8}           {8 20}
test_expr2 expr-7.26 {a isnull OR a=8}               {{} 8}
test_expr2 expr-7.27 {a notnull OR a=8} \
                          {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
test_expr2 expr-7.28 {a<0 OR b=0} {{}}
test_expr2 expr-7.29 {b=0 OR a<0} {{}}
test_expr2 expr-7.30 {a<0 AND b=0} {}
test_expr2 expr-7.31 {b=0 AND a<0} {}
test_expr2 expr-7.32 {a IS NULL AND (a<0 OR b=0)} {{}}
test_expr2 expr-7.33 {a IS NULL AND (b=0 OR a<0)} {{}}
test_expr2 expr-7.34 {a IS NULL AND (a<0 AND b=0)} {}
test_expr2 expr-7.35 {a IS NULL AND (b=0 AND a<0)} {}
test_expr2 expr-7.32 {(a<0 OR b=0) AND a IS NULL} {{}}
test_expr2 expr-7.33 {(b=0 OR a<0) AND a IS NULL} {{}}
test_expr2 expr-7.34 {(a<0 AND b=0) AND a IS NULL} {}
test_expr2 expr-7.35 {(b=0 AND a<0) AND a IS NULL} {}
test_expr2 expr-7.36 {a<2 OR (a<0 OR b=0)} {{} 1}
test_expr2 expr-7.37 {a<2 OR (b=0 OR a<0)} {{} 1}
test_expr2 expr-7.38 {a<2 OR (a<0 AND b=0)} {1}
test_expr2 expr-7.39 {a<2 OR (b=0 AND a<0)} {1}
test_expr2 expr-7.40 {((a<2 OR a IS NULL) AND b<3) OR b>1e10} {{} 1}
test_expr2 expr-7.41 {a BETWEEN -1 AND 1} {1}
test_expr2 expr-7.42 {a NOT BETWEEN 2 AND 100} {1}
test_expr2 expr-7.43 {(b+1234)||'this is a string that is at least 32 characters long' BETWEEN 1 AND 2} {}
test_expr2 expr-7.44 {123||'xabcdefghijklmnopqrstuvwyxz01234567890'||a BETWEEN '123a' AND '123b'} {}
test_expr2 expr-7.45 {((123||'xabcdefghijklmnopqrstuvwyxz01234567890'||a) BETWEEN '123a' AND '123b')<0} {}
test_expr2 expr-7.46 {((123||'xabcdefghijklmnopqrstuvwyxz01234567890'||a) BETWEEN '123a' AND '123z')>0} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}

test_expr2 expr-7.50 {((a between 1 and 2 OR 0) AND 1) OR 0} {1 2}
test_expr2 expr-7.51 {((a not between 3 and 100 OR 0) AND 1) OR 0} {1 2}
test_expr2 expr-7.52 {((a in (1,2) OR 0) AND 1) OR 0} {1 2}
test_expr2 expr-7.53 {((a not in (3,4,5,6,7,8,9,10) OR 0) AND a<11) OR 0} {1 2}
test_expr2 expr-7.54 {((a>0 OR 0) AND a<3) OR 0} {1 2}
test_expr2 expr-7.55 {((a in (1,2) OR 0) IS NULL AND 1) OR 0} {{}}
test_expr2 expr-7.56 {((a not in (3,4,5,6,7,8,9,10) IS NULL OR 0) AND 1) OR 0} \
   {{}}
test_expr2 expr-7.57 {((a>0 IS NULL OR 0) AND 1) OR 0} {{}}

test_expr2 expr-7.58  {(a||'')<='1'}                  {1}

test_expr2 expr-7.59 {LIKE('10%',b)}                  {10 20}
test_expr2 expr-7.60 {LIKE('_4',b)}                   {6}
test_expr2 expr-7.61 {GLOB('1?',a)}            {10 11 12 13 14 15 16 17 18 19}
test_expr2 expr-7.62 {GLOB('1*4',b)}                  {10 14}
test_expr2 expr-7.63 {GLOB('*1[456]',b)}              {4}


finish_test