/trunk/test/e_expr.test |
@@ -0,0 +1,1868 @@ |
# 2010 July 16 |
# |
# 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 tests to verify that the "testable statements" in |
# the lang_expr.html document are correct. |
# |
|
set testdir [file dirname $argv0] |
source $testdir/tester.tcl |
source $testdir/malloc_common.tcl |
|
|
proc do_expr_test {tn expr type value} { |
uplevel do_execsql_test $tn [list "SELECT typeof($expr), $expr"] [ |
list [list $type $value] |
] |
} |
|
proc do_qexpr_test {tn expr value} { |
uplevel do_execsql_test $tn [list "SELECT quote($expr)"] [list $value] |
} |
|
# Set up three global variables: |
# |
# ::opname An array mapping from SQL operator to an easy to parse |
# name. The names are used as part of test case names. |
# |
# ::opprec An array mapping from SQL operator to a numeric |
# precedence value. Operators that group more tightly |
# have lower numeric precedences. |
# |
# ::oplist A list of all SQL operators supported by SQLite. |
# |
foreach {op opn} { |
|| cat * mul / div % mod + add |
- sub << lshift >> rshift & bitand | bitor |
< less <= lesseq > more >= moreeq = eq1 |
== eq2 <> ne1 != ne2 IS is LIKE like |
GLOB glob AND and OR or MATCH match REGEXP regexp |
{IS NOT} isnt |
} { |
set ::opname($op) $opn |
} |
set oplist [list] |
foreach {prec opl} { |
1 || |
2 {* / %} |
3 {+ -} |
4 {<< >> & |} |
5 {< <= > >=} |
6 {= == != <> IS {IS NOT} LIKE GLOB MATCH REGEXP} |
7 AND |
8 OR |
} { |
foreach op $opl { |
set ::opprec($op) $prec |
lappend oplist $op |
} |
} |
|
|
# Hook in definitions of MATCH and REGEX. The following implementations |
# cause MATCH and REGEX to behave similarly to the == operator. |
# |
proc matchfunc {a b} { return [expr {$a==$b}] } |
proc regexfunc {a b} { return [expr {$a==$b}] } |
db func match -argcount 2 matchfunc |
db func regexp -argcount 2 regexfunc |
|
#------------------------------------------------------------------------- |
# Test cases e_expr-1.* attempt to verify that all binary operators listed |
# in the documentation exist and that the relative precedences of the |
# operators are also as the documentation suggests. |
# |
# EVIDENCE-OF: R-15514-65163 SQLite understands the following binary |
# operators, in order from highest to lowest precedence: || * / % + - |
# << >> & | < <= > >= = == != <> IS IS |
# NOT IN LIKE GLOB MATCH REGEXP AND OR |
# |
# EVIDENCE-OF: R-38759-38789 Operators IS and IS NOT have the same |
# precedence as =. |
# |
|
unset -nocomplain untested |
foreach op1 $oplist { |
foreach op2 $oplist { |
set untested($op1,$op2) 1 |
foreach {tn A B C} { |
1 22 45 66 |
2 0 0 0 |
3 0 0 1 |
4 0 1 0 |
5 0 1 1 |
6 1 0 0 |
7 1 0 1 |
8 1 1 0 |
9 1 1 1 |
10 5 6 1 |
11 1 5 6 |
12 1 5 5 |
13 5 5 1 |
|
14 5 2 1 |
15 1 4 1 |
16 -1 0 1 |
17 0 1 -1 |
|
} { |
set testname "e_expr-1.$opname($op1).$opname($op2).$tn" |
|
# If $op2 groups more tightly than $op1, then the result |
# of executing $sql1 whould be the same as executing $sql3. |
# If $op1 groups more tightly, or if $op1 and $op2 have |
# the same precedence, then executing $sql1 should return |
# the same value as $sql2. |
# |
set sql1 "SELECT $A $op1 $B $op2 $C" |
set sql2 "SELECT ($A $op1 $B) $op2 $C" |
set sql3 "SELECT $A $op1 ($B $op2 $C)" |
|
set a2 [db one $sql2] |
set a3 [db one $sql3] |
|
do_execsql_test $testname $sql1 [list [ |
if {$opprec($op2) < $opprec($op1)} {set a3} {set a2} |
]] |
if {$a2 != $a3} { unset -nocomplain untested($op1,$op2) } |
} |
} |
} |
|
foreach op {* AND OR + || & |} { unset untested($op,$op) } |
unset untested(+,-) ;# Since (a+b)-c == a+(b-c) |
unset untested(*,<<) ;# Since (a*b)<<c == a*(b<<c) |
|
do_test e_expr-1.1 { array names untested } {} |
|
# At one point, test 1.2.2 was failing. Instead of the correct result, it |
# was returning {1 1 0}. This would seem to indicate that LIKE has the |
# same precedence as '<'. Which is incorrect. It has lower precedence. |
# |
do_execsql_test e_expr-1.2.1 { |
SELECT 0 < 2 LIKE 1, (0 < 2) LIKE 1, 0 < (2 LIKE 1) |
} {1 1 0} |
do_execsql_test e_expr-1.2.2 { |
SELECT 0 LIKE 0 < 2, (0 LIKE 0) < 2, 0 LIKE (0 < 2) |
} {0 1 0} |
|
# Showing that LIKE and == have the same precedence |
# |
do_execsql_test e_expr-1.2.3 { |
SELECT 2 LIKE 2 == 1, (2 LIKE 2) == 1, 2 LIKE (2 == 1) |
} {1 1 0} |
do_execsql_test e_expr-1.2.4 { |
SELECT 2 == 2 LIKE 1, (2 == 2) LIKE 1, 2 == (2 LIKE 1) |
} {1 1 0} |
|
# Showing that < groups more tightly than == (< has higher precedence). |
# |
do_execsql_test e_expr-1.2.5 { |
SELECT 0 < 2 == 1, (0 < 2) == 1, 0 < (2 == 1) |
} {1 1 0} |
do_execsql_test e_expr-1.6 { |
SELECT 0 == 0 < 2, (0 == 0) < 2, 0 == (0 < 2) |
} {0 1 0} |
|
#------------------------------------------------------------------------- |
# Check that the four unary prefix operators mentioned in the |
# documentation exist. |
# |
# EVIDENCE-OF: R-13958-53419 Supported unary prefix operators are these: |
# - + ~ NOT |
# |
do_execsql_test e_expr-2.1 { SELECT - 10 } {-10} |
do_execsql_test e_expr-2.2 { SELECT + 10 } {10} |
do_execsql_test e_expr-2.3 { SELECT ~ 10 } {-11} |
do_execsql_test e_expr-2.4 { SELECT NOT 10 } {0} |
|
#------------------------------------------------------------------------- |
# Tests for the two statements made regarding the unary + operator. |
# |
# EVIDENCE-OF: R-53670-03373 The unary operator + is a no-op. |
# |
# EVIDENCE-OF: R-19480-30968 It can be applied to strings, numbers, |
# blobs or NULL and it always returns a result with the same value as |
# the operand. |
# |
foreach {tn literal type} { |
1 'helloworld' text |
2 45 integer |
3 45.2 real |
4 45.0 real |
5 X'ABCDEF' blob |
6 NULL null |
} { |
set sql " SELECT quote( + $literal ), typeof( + $literal) " |
do_execsql_test e_expr-3.$tn $sql [list $literal $type] |
} |
|
#------------------------------------------------------------------------- |
# Check that both = and == are both acceptable as the "equals" operator. |
# Similarly, either != or <> work as the not-equals operator. |
# |
# EVIDENCE-OF: R-03679-60639 Equals can be either = or ==. |
# |
# EVIDENCE-OF: R-30082-38996 The non-equals operator can be either != or |
# <>. |
# |
foreach {tn literal different} { |
1 'helloworld' '12345' |
2 22 23 |
3 'xyz' X'78797A' |
4 X'78797A00' 'xyz' |
} { |
do_execsql_test e_expr-4.$tn " |
SELECT $literal = $literal, $literal == $literal, |
$literal = $different, $literal == $different, |
$literal = NULL, $literal == NULL, |
$literal != $literal, $literal <> $literal, |
$literal != $different, $literal <> $different, |
$literal != NULL, $literal != NULL |
|
" {1 1 0 0 {} {} 0 0 1 1 {} {}} |
} |
|
#------------------------------------------------------------------------- |
# Test the || operator. |
# |
# EVIDENCE-OF: R-44409-62641 The || operator is "concatenate" - it joins |
# together the two strings of its operands. |
# |
foreach {tn a b} { |
1 'helloworld' '12345' |
2 22 23 |
} { |
set as [db one "SELECT $a"] |
set bs [db one "SELECT $b"] |
|
do_execsql_test e_expr-5.$tn "SELECT $a || $b" [list "${as}${bs}"] |
} |
|
#------------------------------------------------------------------------- |
# Test the % operator. |
# |
# EVIDENCE-OF: R-08914-63790 The operator % outputs the value of its |
# left operand modulo its right operand. |
# |
do_execsql_test e_expr-6.1 {SELECT 72%5} {2} |
do_execsql_test e_expr-6.2 {SELECT 72%-5} {2} |
do_execsql_test e_expr-6.3 {SELECT -72%-5} {-2} |
do_execsql_test e_expr-6.4 {SELECT -72%5} {-2} |
|
#------------------------------------------------------------------------- |
# Test that the results of all binary operators are either numeric or |
# NULL, except for the || operator, which may evaluate to either a text |
# value or NULL. |
# |
# EVIDENCE-OF: R-20665-17792 The result of any binary operator is either |
# a numeric value or NULL, except for the || concatenation operator |
# which always evaluates to either NULL or a text value. |
# |
set literals { |
1 'abc' 2 'hexadecimal' 3 '' |
4 123 5 -123 6 0 |
7 123.4 8 0.0 9 -123.4 |
10 X'ABCDEF' 11 X'' 12 X'0000' |
13 NULL |
} |
foreach op $oplist { |
foreach {n1 rhs} $literals { |
foreach {n2 lhs} $literals { |
|
set t [db one " SELECT typeof($lhs $op $rhs) "] |
do_test e_expr-7.$opname($op).$n1.$n2 { |
expr { |
($op=="||" && ($t == "text" || $t == "null")) |
|| ($op!="||" && ($t == "integer" || $t == "real" || $t == "null")) |
} |
} 1 |
|
}} |
} |
|
#------------------------------------------------------------------------- |
# Test the IS and IS NOT operators. |
# |
# EVIDENCE-OF: R-24731-45773 The IS and IS NOT operators work like = and |
# != except when one or both of the operands are NULL. |
# |
# EVIDENCE-OF: R-06325-15315 In this case, if both operands are NULL, |
# then the IS operator evaluates to 1 (true) and the IS NOT operator |
# evaluates to 0 (false). |
# |
# EVIDENCE-OF: R-19812-36779 If one operand is NULL and the other is |
# not, then the IS operator evaluates to 0 (false) and the IS NOT |
# operator is 1 (true). |
# |
# EVIDENCE-OF: R-61975-13410 It is not possible for an IS or IS NOT |
# expression to evaluate to NULL. |
# |
do_execsql_test e_expr-8.1.1 { SELECT NULL IS NULL } {1} |
do_execsql_test e_expr-8.1.2 { SELECT 'ab' IS NULL } {0} |
do_execsql_test e_expr-8.1.3 { SELECT NULL IS 'ab' } {0} |
do_execsql_test e_expr-8.1.4 { SELECT 'ab' IS 'ab' } {1} |
do_execsql_test e_expr-8.1.5 { SELECT NULL == NULL } {{}} |
do_execsql_test e_expr-8.1.6 { SELECT 'ab' == NULL } {{}} |
do_execsql_test e_expr-8.1.7 { SELECT NULL == 'ab' } {{}} |
do_execsql_test e_expr-8.1.8 { SELECT 'ab' == 'ab' } {1} |
do_execsql_test e_expr-8.1.9 { SELECT NULL IS NOT NULL } {0} |
do_execsql_test e_expr-8.1.10 { SELECT 'ab' IS NOT NULL } {1} |
do_execsql_test e_expr-8.1.11 { SELECT NULL IS NOT 'ab' } {1} |
do_execsql_test e_expr-8.1.12 { SELECT 'ab' IS NOT 'ab' } {0} |
do_execsql_test e_expr-8.1.13 { SELECT NULL != NULL } {{}} |
do_execsql_test e_expr-8.1.14 { SELECT 'ab' != NULL } {{}} |
do_execsql_test e_expr-8.1.15 { SELECT NULL != 'ab' } {{}} |
do_execsql_test e_expr-8.1.16 { SELECT 'ab' != 'ab' } {0} |
|
foreach {n1 rhs} $literals { |
foreach {n2 lhs} $literals { |
if {$rhs!="NULL" && $lhs!="NULL"} { |
set eq [execsql "SELECT $lhs = $rhs, $lhs != $rhs"] |
} else { |
set eq [list [expr {$lhs=="NULL" && $rhs=="NULL"}] \ |
[expr {$lhs!="NULL" || $rhs!="NULL"}] |
] |
} |
set test e_expr-8.2.$n1.$n2 |
do_execsql_test $test.1 "SELECT $lhs IS $rhs, $lhs IS NOT $rhs" $eq |
do_execsql_test $test.2 " |
SELECT ($lhs IS $rhs) IS NULL, ($lhs IS NOT $rhs) IS NULL |
" {0 0} |
} |
} |
|
#------------------------------------------------------------------------- |
# Run some tests on the COLLATE "unary postfix operator". |
# |
# This collation sequence reverses both arguments before using |
# [string compare] to compare them. For example, when comparing the |
# strings 'one' and 'four', return the result of: |
# |
# string compare eno ruof |
# |
proc reverse_str {zStr} { |
set out "" |
foreach c [split $zStr {}] { set out "${c}${out}" } |
set out |
} |
proc reverse_collate {zLeft zRight} { |
string compare [reverse_str $zLeft] [reverse_str $zRight] |
} |
db collate reverse reverse_collate |
|
# EVIDENCE-OF: R-59577-33471 The COLLATE operator is a unary postfix |
# operator that assigns a collating sequence to an expression. |
# |
# EVIDENCE-OF: R-23441-22541 The COLLATE operator has a higher |
# precedence (binds more tightly) than any prefix unary operator or any |
# binary operator. |
# |
do_execsql_test e_expr-9.1 { SELECT 'abcd' < 'bbbb' COLLATE reverse } 0 |
do_execsql_test e_expr-9.2 { SELECT ('abcd' < 'bbbb') COLLATE reverse } 1 |
do_execsql_test e_expr-9.3 { SELECT 'abcd' <= 'bbbb' COLLATE reverse } 0 |
do_execsql_test e_expr-9.4 { SELECT ('abcd' <= 'bbbb') COLLATE reverse } 1 |
|
do_execsql_test e_expr-9.5 { SELECT 'abcd' > 'bbbb' COLLATE reverse } 1 |
do_execsql_test e_expr-9.6 { SELECT ('abcd' > 'bbbb') COLLATE reverse } 0 |
do_execsql_test e_expr-9.7 { SELECT 'abcd' >= 'bbbb' COLLATE reverse } 1 |
do_execsql_test e_expr-9.8 { SELECT ('abcd' >= 'bbbb') COLLATE reverse } 0 |
|
do_execsql_test e_expr-9.10 { SELECT 'abcd' = 'ABCD' COLLATE nocase } 1 |
do_execsql_test e_expr-9.11 { SELECT ('abcd' = 'ABCD') COLLATE nocase } 0 |
do_execsql_test e_expr-9.12 { SELECT 'abcd' == 'ABCD' COLLATE nocase } 1 |
do_execsql_test e_expr-9.13 { SELECT ('abcd' == 'ABCD') COLLATE nocase } 0 |
do_execsql_test e_expr-9.14 { SELECT 'abcd' IS 'ABCD' COLLATE nocase } 1 |
do_execsql_test e_expr-9.15 { SELECT ('abcd' IS 'ABCD') COLLATE nocase } 0 |
|
do_execsql_test e_expr-9.16 { SELECT 'abcd' != 'ABCD' COLLATE nocase } 0 |
do_execsql_test e_expr-9.17 { SELECT ('abcd' != 'ABCD') COLLATE nocase } 1 |
do_execsql_test e_expr-9.18 { SELECT 'abcd' <> 'ABCD' COLLATE nocase } 0 |
do_execsql_test e_expr-9.19 { SELECT ('abcd' <> 'ABCD') COLLATE nocase } 1 |
do_execsql_test e_expr-9.20 { SELECT 'abcd' IS NOT 'ABCD' COLLATE nocase } 0 |
do_execsql_test e_expr-9.21 { SELECT ('abcd' IS NOT 'ABCD') COLLATE nocase } 1 |
|
do_execsql_test e_expr-9.22 { |
SELECT 'bbb' BETWEEN 'AAA' AND 'CCC' COLLATE nocase |
} 1 |
do_execsql_test e_expr-9.23 { |
SELECT ('bbb' BETWEEN 'AAA' AND 'CCC') COLLATE nocase |
} 0 |
|
# EVIDENCE-OF: R-58731-25439 The collating sequence set by the COLLATE |
# operator overrides the collating sequence determined by the COLLATE |
# clause in a table column definition. |
# |
do_execsql_test e_expr-9.24 { |
CREATE TABLE t24(a COLLATE NOCASE, b); |
INSERT INTO t24 VALUES('aaa', 1); |
INSERT INTO t24 VALUES('bbb', 2); |
INSERT INTO t24 VALUES('ccc', 3); |
} {} |
do_execsql_test e_expr-9.25 { SELECT 'BBB' = a FROM t24 } {0 1 0} |
do_execsql_test e_expr-9.25 { SELECT a = 'BBB' FROM t24 } {0 1 0} |
do_execsql_test e_expr-9.25 { SELECT 'BBB' = a COLLATE binary FROM t24 } {0 0 0} |
do_execsql_test e_expr-9.25 { SELECT a COLLATE binary = 'BBB' FROM t24 } {0 0 0} |
|
#------------------------------------------------------------------------- |
# Test statements related to literal values. |
# |
# EVIDENCE-OF: R-31536-32008 Literal values may be integers, floating |
# point numbers, strings, BLOBs, or NULLs. |
# |
do_execsql_test e_expr-10.1.1 { SELECT typeof(5) } {integer} |
do_execsql_test e_expr-10.1.2 { SELECT typeof(5.1) } {real} |
do_execsql_test e_expr-10.1.3 { SELECT typeof('5.1') } {text} |
do_execsql_test e_expr-10.1.4 { SELECT typeof(X'ABCD') } {blob} |
do_execsql_test e_expr-10.1.5 { SELECT typeof(NULL) } {null} |
|
# "Scientific notation is supported for point literal values." |
# |
do_execsql_test e_expr-10.2.1 { SELECT typeof(3.4e-02) } {real} |
do_execsql_test e_expr-10.2.2 { SELECT typeof(3e+5) } {real} |
do_execsql_test e_expr-10.2.3 { SELECT 3.4e-02 } {0.034} |
do_execsql_test e_expr-10.2.4 { SELECT 3e+4 } {30000.0} |
|
# EVIDENCE-OF: R-35229-17830 A string constant is formed by enclosing |
# the string in single quotes ('). |
# |
# EVIDENCE-OF: R-07100-06606 A single quote within the string can be |
# encoded by putting two single quotes in a row - as in Pascal. |
# |
do_execsql_test e_expr-10.3.1 { SELECT 'is not' } {{is not}} |
do_execsql_test e_expr-10.3.2 { SELECT typeof('is not') } {text} |
do_execsql_test e_expr-10.3.3 { SELECT 'isn''t' } {isn't} |
do_execsql_test e_expr-10.3.4 { SELECT typeof('isn''t') } {text} |
|
# EVIDENCE-OF: R-09593-03321 BLOB literals are string literals |
# containing hexadecimal data and preceded by a single "x" or "X" |
# character. |
# |
# EVIDENCE-OF: R-39344-59787 For example: X'53514C697465' |
# |
do_execsql_test e_expr-10.4.1 { SELECT typeof(X'0123456789ABCDEF') } blob |
do_execsql_test e_expr-10.4.2 { SELECT typeof(x'0123456789ABCDEF') } blob |
do_execsql_test e_expr-10.4.3 { SELECT typeof(X'0123456789abcdef') } blob |
do_execsql_test e_expr-10.4.4 { SELECT typeof(x'0123456789abcdef') } blob |
do_execsql_test e_expr-10.4.5 { SELECT typeof(X'53514C697465') } blob |
|
# EVIDENCE-OF: R-23914-51476 A literal value can also be the token |
# "NULL". |
# |
do_execsql_test e_expr-10.5.1 { SELECT NULL } {{}} |
do_execsql_test e_expr-10.5.2 { SELECT typeof(NULL) } {null} |
|
#------------------------------------------------------------------------- |
# Test statements related to bound parameters |
# |
|
proc parameter_test {tn sql params result} { |
set stmt [sqlite3_prepare_v2 db $sql -1] |
|
foreach {number name} $params { |
set nm [sqlite3_bind_parameter_name $stmt $number] |
do_test $tn.name.$number [list set {} $nm] $name |
sqlite3_bind_int $stmt $number [expr -1 * $number] |
} |
|
sqlite3_step $stmt |
|
set res [list] |
for {set i 0} {$i < [sqlite3_column_count $stmt]} {incr i} { |
lappend res [sqlite3_column_text $stmt $i] |
} |
|
set rc [sqlite3_finalize $stmt] |
do_test $tn.rc [list set {} $rc] SQLITE_OK |
do_test $tn.res [list set {} $res] $result |
} |
|
# EVIDENCE-OF: R-33509-39458 A question mark followed by a number NNN |
# holds a spot for the NNN-th parameter. NNN must be between 1 and |
# SQLITE_MAX_VARIABLE_NUMBER. |
# |
set mvn $SQLITE_MAX_VARIABLE_NUMBER |
parameter_test e_expr-11.1 " |
SELECT ?1, ?123, ?$SQLITE_MAX_VARIABLE_NUMBER, ?123, ?4 |
" "1 ?1 123 ?123 $mvn ?$mvn 4 ?4" "-1 -123 -$mvn -123 -4" |
|
set errmsg "variable number must be between ?1 and ?$SQLITE_MAX_VARIABLE_NUMBER" |
foreach {tn param_number} [list \ |
2 0 \ |
3 [expr $SQLITE_MAX_VARIABLE_NUMBER+1] \ |
4 [expr $SQLITE_MAX_VARIABLE_NUMBER+2] \ |
5 12345678903456789034567890234567890 \ |
6 2147483648 \ |
7 2147483649 \ |
8 4294967296 \ |
9 4294967297 \ |
10 9223372036854775808 \ |
11 9223372036854775809 \ |
12 18446744073709551616 \ |
13 18446744073709551617 \ |
] { |
do_catchsql_test e_expr-11.1.$tn "SELECT ?$param_number" [list 1 $errmsg] |
} |
|
# EVIDENCE-OF: R-33670-36097 A question mark that is not followed by a |
# number creates a parameter with a number one greater than the largest |
# parameter number already assigned. |
# |
# EVIDENCE-OF: R-42938-07030 If this means the parameter number is |
# greater than SQLITE_MAX_VARIABLE_NUMBER, it is an error. |
# |
parameter_test e_expr-11.2.1 "SELECT ?" {1 {}} -1 |
parameter_test e_expr-11.2.2 "SELECT ?, ?" {1 {} 2 {}} {-1 -2} |
parameter_test e_expr-11.2.3 "SELECT ?5, ?" {5 ?5 6 {}} {-5 -6} |
parameter_test e_expr-11.2.4 "SELECT ?, ?5" {1 {} 5 ?5} {-1 -5} |
parameter_test e_expr-11.2.5 "SELECT ?, ?456, ?" { |
1 {} 456 ?456 457 {} |
} {-1 -456 -457} |
parameter_test e_expr-11.2.5 "SELECT ?, ?456, ?4, ?" { |
1 {} 456 ?456 4 ?4 457 {} |
} {-1 -456 -4 -457} |
foreach {tn sql} [list \ |
1 "SELECT ?$mvn, ?" \ |
2 "SELECT ?[expr $mvn-5], ?, ?, ?, ?, ?, ?" \ |
3 "SELECT ?[expr $mvn], ?5, ?6, ?" \ |
] { |
do_catchsql_test e_expr-11.3.$tn $sql [list 1 {too many SQL variables}] |
} |
|
# EVIDENCE-OF: R-11620-22743 A colon followed by an identifier name |
# holds a spot for a named parameter with the name :AAAA. |
# |
# Identifiers in SQLite consist of alphanumeric, '_' and '$' characters, |
# and any UTF characters with codepoints larger than 127 (non-ASCII |
# characters). |
# |
parameter_test e_expr-11.2.1 {SELECT :AAAA} {1 :AAAA} -1 |
parameter_test e_expr-11.2.2 {SELECT :123} {1 :123} -1 |
parameter_test e_expr-11.2.3 {SELECT :__} {1 :__} -1 |
parameter_test e_expr-11.2.4 {SELECT :_$_} {1 :_$_} -1 |
#Skip Unicode Test |
if 0 { |
parameter_test e_expr-11.2.5 " |
SELECT :\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25 |
" "1 :\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25" -1 |
} |
parameter_test e_expr-11.2.6 "SELECT :\u0080" "1 :\u0080" -1 |
|
# EVIDENCE-OF: R-49783-61279 An "at" sign works exactly like a colon, |
# except that the name of the parameter created is @AAAA. |
# |
parameter_test e_expr-11.3.1 {SELECT @AAAA} {1 @AAAA} -1 |
parameter_test e_expr-11.3.2 {SELECT @123} {1 @123} -1 |
parameter_test e_expr-11.3.3 {SELECT @__} {1 @__} -1 |
parameter_test e_expr-11.3.4 {SELECT @_$_} {1 @_$_} -1 |
#Skip Unicode Test |
if 0 { |
parameter_test e_expr-11.3.5 " |
SELECT @\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25 |
" "1 @\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25" -1 |
} |
parameter_test e_expr-11.3.6 "SELECT @\u0080" "1 @\u0080" -1 |
|
# EVIDENCE-OF: R-62610-51329 A dollar-sign followed by an identifier |
# name also holds a spot for a named parameter with the name $AAAA. |
# |
# EVIDENCE-OF: R-55025-21042 The identifier name in this case can |
# include one or more occurrences of "::" and a suffix enclosed in |
# "(...)" containing any text at all. |
# |
# Note: Looks like an identifier cannot consist entirely of "::" |
# characters or just a suffix. Also, the other named variable characters |
# (: and @) work the same way internally. Why not just document it that way? |
# |
parameter_test e_expr-11.4.1 {SELECT $AAAA} {1 $AAAA} -1 |
parameter_test e_expr-11.4.2 {SELECT $123} {1 $123} -1 |
parameter_test e_expr-11.4.3 {SELECT $__} {1 $__} -1 |
parameter_test e_expr-11.4.4 {SELECT $_$_} {1 $_$_} -1 |
#Skip Unicode Test |
if 0 { |
parameter_test e_expr-11.4.5 " |
SELECT \$\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25 |
" "1 \$\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25" -1 |
} |
parameter_test e_expr-11.4.6 "SELECT \$\u0080" "1 \$\u0080" -1 |
|
parameter_test e_expr-11.5.1 {SELECT $::::a(++--++)} {1 $::::a(++--++)} -1 |
parameter_test e_expr-11.5.2 {SELECT $::a()} {1 $::a()} -1 |
parameter_test e_expr-11.5.3 {SELECT $::1(::#$)} {1 $::1(::#$)} -1 |
|
# EVIDENCE-OF: R-11370-04520 Named parameters are also numbered. The |
# number assigned is one greater than the largest parameter number |
# already assigned. |
# |
# EVIDENCE-OF: R-42620-22184 If this means the parameter would be |
# assigned a number greater than SQLITE_MAX_VARIABLE_NUMBER, it is an |
# error. |
# |
parameter_test e_expr-11.6.1 "SELECT ?, @abc" {1 {} 2 @abc} {-1 -2} |
parameter_test e_expr-11.6.2 "SELECT ?123, :a1" {123 ?123 124 :a1} {-123 -124} |
parameter_test e_expr-11.6.3 {SELECT $a, ?8, ?, $b, ?2, $c} { |
1 $a 8 ?8 9 {} 10 $b 2 ?2 11 $c |
} {-1 -8 -9 -10 -2 -11} |
foreach {tn sql} [list \ |
1 "SELECT ?$mvn, \$::a" \ |
2 "SELECT ?$mvn, ?4, @a1" \ |
3 "SELECT ?[expr $mvn-2], :bag, @123, \$x" \ |
] { |
do_catchsql_test e_expr-11.7.$tn $sql [list 1 {too many SQL variables}] |
} |
|
# EVIDENCE-OF: R-14068-49671 Parameters that are not assigned values |
# using sqlite3_bind() are treated as NULL. |
# |
do_test e_expr-11.7.1 { |
set stmt [sqlite3_prepare_v2 db { SELECT ?, :a, @b, $d } -1] |
sqlite3_step $stmt |
|
list [sqlite3_column_type $stmt 0] \ |
[sqlite3_column_type $stmt 1] \ |
[sqlite3_column_type $stmt 2] \ |
[sqlite3_column_type $stmt 3] |
} {NULL NULL NULL NULL} |
do_test e_expr-11.7.1 { sqlite3_finalize $stmt } SQLITE_OK |
|
#------------------------------------------------------------------------- |
# "Test" the syntax diagrams in lang_expr.html. |
# |
# EVIDENCE-OF: R-62067-43884 -- syntax diagram signed-number |
# |
do_execsql_test e_expr-12.1.1 { SELECT 0, +0, -0 } {0 0 0} |
do_execsql_test e_expr-12.1.2 { SELECT 1, +1, -1 } {1 1 -1} |
do_execsql_test e_expr-12.1.3 { SELECT 2, +2, -2 } {2 2 -2} |
do_execsql_test e_expr-12.1.4 { |
SELECT 1.4, +1.4, -1.4 |
} {1.4 1.4 -1.4} |
do_execsql_test e_expr-12.1.5 { |
SELECT 1.5e+5, +1.5e+5, -1.5e+5 |
} {150000.0 150000.0 -150000.0} |
do_execsql_test e_expr-12.1.6 { |
SELECT 0.0001, +0.0001, -0.0001 |
} {0.0001 0.0001 -0.0001} |
|
# EVIDENCE-OF: R-21258-25489 -- syntax diagram literal-value |
# |
set sqlite_current_time 1 |
do_execsql_test e_expr-12.2.1 {SELECT 123} {123} |
do_execsql_test e_expr-12.2.2 {SELECT 123.4e05} {12340000.0} |
do_execsql_test e_expr-12.2.3 {SELECT 'abcde'} {abcde} |
do_execsql_test e_expr-12.2.4 {SELECT X'414243'} {ABC} |
do_execsql_test e_expr-12.2.5 {SELECT NULL} {{}} |
do_execsql_test e_expr-12.2.6 {SELECT CURRENT_TIME} {00:00:01} |
do_execsql_test e_expr-12.2.7 {SELECT CURRENT_DATE} {1970-01-01} |
do_execsql_test e_expr-12.2.8 {SELECT CURRENT_TIMESTAMP} {{1970-01-01 00:00:01}} |
set sqlite_current_time 0 |
|
# EVIDENCE-OF: R-57598-59332 -- syntax diagram expr |
# |
file delete -force test.db2 |
execsql { |
ATTACH 'test.db2' AS dbname; |
CREATE TABLE dbname.tblname(cname); |
} |
|
proc glob {args} {return 1} |
db function glob glob |
db function match glob |
db function regexp glob |
|
foreach {tn expr} { |
1 123 |
2 123.4e05 |
3 'abcde' |
4 X'414243' |
5 NULL |
6 CURRENT_TIME |
7 CURRENT_DATE |
8 CURRENT_TIMESTAMP |
|
9 ? |
10 ?123 |
11 @hello |
12 :world |
13 $tcl |
14 $tcl(array) |
|
15 cname |
16 tblname.cname |
17 dbname.tblname.cname |
|
18 "+ EXPR" |
19 "- EXPR" |
20 "NOT EXPR" |
21 "~ EXPR" |
|
22 "EXPR1 || EXPR2" |
23 "EXPR1 * EXPR2" |
24 "EXPR1 / EXPR2" |
25 "EXPR1 % EXPR2" |
26 "EXPR1 + EXPR2" |
27 "EXPR1 - EXPR2" |
28 "EXPR1 << EXPR2" |
29 "EXPR1 >> EXPR2" |
30 "EXPR1 & EXPR2" |
31 "EXPR1 | EXPR2" |
32 "EXPR1 < EXPR2" |
33 "EXPR1 <= EXPR2" |
34 "EXPR1 > EXPR2" |
35 "EXPR1 >= EXPR2" |
36 "EXPR1 = EXPR2" |
37 "EXPR1 == EXPR2" |
38 "EXPR1 != EXPR2" |
39 "EXPR1 <> EXPR2" |
40 "EXPR1 IS EXPR2" |
41 "EXPR1 IS NOT EXPR2" |
42 "EXPR1 AND EXPR2" |
43 "EXPR1 OR EXPR2" |
|
44 "count(*)" |
45 "count(DISTINCT EXPR)" |
46 "substr(EXPR, 10, 20)" |
47 "changes()" |
|
48 "( EXPR )" |
|
49 "CAST ( EXPR AS integer )" |
50 "CAST ( EXPR AS 'abcd' )" |
51 "CAST ( EXPR AS 'ab$ $cd' )" |
|
52 "EXPR COLLATE nocase" |
53 "EXPR COLLATE binary" |
|
54 "EXPR1 LIKE EXPR2" |
55 "EXPR1 LIKE EXPR2 ESCAPE EXPR" |
56 "EXPR1 GLOB EXPR2" |
57 "EXPR1 GLOB EXPR2 ESCAPE EXPR" |
58 "EXPR1 REGEXP EXPR2" |
59 "EXPR1 REGEXP EXPR2 ESCAPE EXPR" |
60 "EXPR1 MATCH EXPR2" |
61 "EXPR1 MATCH EXPR2 ESCAPE EXPR" |
62 "EXPR1 NOT LIKE EXPR2" |
63 "EXPR1 NOT LIKE EXPR2 ESCAPE EXPR" |
64 "EXPR1 NOT GLOB EXPR2" |
65 "EXPR1 NOT GLOB EXPR2 ESCAPE EXPR" |
66 "EXPR1 NOT REGEXP EXPR2" |
67 "EXPR1 NOT REGEXP EXPR2 ESCAPE EXPR" |
68 "EXPR1 NOT MATCH EXPR2" |
69 "EXPR1 NOT MATCH EXPR2 ESCAPE EXPR" |
|
70 "EXPR ISNULL" |
71 "EXPR NOTNULL" |
72 "EXPR NOT NULL" |
|
73 "EXPR1 IS EXPR2" |
74 "EXPR1 IS NOT EXPR2" |
|
75 "EXPR NOT BETWEEN EXPR1 AND EXPR2" |
76 "EXPR BETWEEN EXPR1 AND EXPR2" |
|
77 "EXPR NOT IN (SELECT cname FROM tblname)" |
78 "EXPR NOT IN (1)" |
79 "EXPR NOT IN (1, 2, 3)" |
80 "EXPR NOT IN tblname" |
81 "EXPR NOT IN dbname.tblname" |
82 "EXPR IN (SELECT cname FROM tblname)" |
83 "EXPR IN (1)" |
84 "EXPR IN (1, 2, 3)" |
85 "EXPR IN tblname" |
86 "EXPR IN dbname.tblname" |
|
87 "EXISTS (SELECT cname FROM tblname)" |
88 "NOT EXISTS (SELECT cname FROM tblname)" |
|
89 "CASE EXPR WHEN EXPR1 THEN EXPR2 ELSE EXPR END" |
90 "CASE EXPR WHEN EXPR1 THEN EXPR2 END" |
91 "CASE EXPR WHEN EXPR1 THEN EXPR2 WHEN EXPR THEN EXPR1 ELSE EXPR2 END" |
92 "CASE EXPR WHEN EXPR1 THEN EXPR2 WHEN EXPR THEN EXPR1 END" |
93 "CASE WHEN EXPR1 THEN EXPR2 ELSE EXPR END" |
94 "CASE WHEN EXPR1 THEN EXPR2 END" |
95 "CASE WHEN EXPR1 THEN EXPR2 WHEN EXPR THEN EXPR1 ELSE EXPR2 END" |
96 "CASE WHEN EXPR1 THEN EXPR2 WHEN EXPR THEN EXPR1 END" |
} { |
|
# If the expression string being parsed contains "EXPR2", then replace |
# string "EXPR1" and "EXPR2" with arbitrary SQL expressions. If it |
# contains "EXPR", then replace EXPR with an arbitrary SQL expression. |
# |
set elist [list $expr] |
if {[string match *EXPR2* $expr]} { |
set elist [list] |
foreach {e1 e2} { cname "34+22" } { |
lappend elist [string map [list EXPR1 $e1 EXPR2 $e2] $expr] |
} |
} |
if {[string match *EXPR* $expr]} { |
set elist2 [list] |
foreach el $elist { |
foreach e { cname "34+22" } { |
lappend elist2 [string map [list EXPR $e] $el] |
} |
} |
set elist $elist2 |
} |
|
set x 0 |
foreach e $elist { |
incr x |
do_test e_expr-12.3.$tn.$x { |
set rc [catch { execsql "SELECT $e FROM tblname" } msg] |
} {0} |
} |
} |
|
# EVIDENCE-OF: R-49462-56079 -- syntax diagram raise-function |
# |
foreach {tn raiseexpr} { |
1 "RAISE(IGNORE)" |
2 "RAISE(ROLLBACK, 'error message')" |
3 "RAISE(ABORT, 'error message')" |
4 "RAISE(FAIL, 'error message')" |
} { |
do_execsql_test e_expr-12.4.$tn " |
CREATE TRIGGER dbname.tr$tn BEFORE DELETE ON tblname BEGIN |
SELECT $raiseexpr ; |
END; |
" {} |
} |
|
#------------------------------------------------------------------------- |
# Test the statements related to the BETWEEN operator. |
# |
# EVIDENCE-OF: R-40079-54503 The BETWEEN operator is logically |
# equivalent to a pair of comparisons. "x BETWEEN y AND z" is equivalent |
# to "x>=y AND x<=z" except that with BETWEEN, the x expression is |
# only evaluated once. |
# |
db func x x |
proc x {} { incr ::xcount ; return [expr $::x] } |
foreach {tn x expr res nEval} { |
1 10 "x() >= 5 AND x() <= 15" 1 2 |
2 10 "x() BETWEEN 5 AND 15" 1 1 |
|
3 5 "x() >= 5 AND x() <= 5" 1 2 |
4 5 "x() BETWEEN 5 AND 5" 1 1 |
} { |
do_test e_expr-13.1.$tn { |
set ::xcount 0 |
set a [execsql "SELECT $expr"] |
list $::xcount $a |
} [list $nEval $res] |
} |
|
# EVIDENCE-OF: R-05155-34454 The precedence of the BETWEEN operator is |
# the same as the precedence as operators == and != and LIKE and groups |
# left to right. |
# |
# Therefore, BETWEEN groups more tightly than operator "AND", but less |
# so than "<". |
# |
do_execsql_test e_expr-13.2.1 { SELECT 1 == 10 BETWEEN 0 AND 2 } 1 |
do_execsql_test e_expr-13.2.2 { SELECT (1 == 10) BETWEEN 0 AND 2 } 1 |
do_execsql_test e_expr-13.2.3 { SELECT 1 == (10 BETWEEN 0 AND 2) } 0 |
do_execsql_test e_expr-13.2.4 { SELECT 6 BETWEEN 4 AND 8 == 1 } 1 |
do_execsql_test e_expr-13.2.5 { SELECT (6 BETWEEN 4 AND 8) == 1 } 1 |
do_execsql_test e_expr-13.2.6 { SELECT 6 BETWEEN 4 AND (8 == 1) } 0 |
|
do_execsql_test e_expr-13.2.7 { SELECT 5 BETWEEN 0 AND 0 != 1 } 1 |
do_execsql_test e_expr-13.2.8 { SELECT (5 BETWEEN 0 AND 0) != 1 } 1 |
do_execsql_test e_expr-13.2.9 { SELECT 5 BETWEEN 0 AND (0 != 1) } 0 |
do_execsql_test e_expr-13.2.10 { SELECT 1 != 0 BETWEEN 0 AND 2 } 1 |
do_execsql_test e_expr-13.2.11 { SELECT (1 != 0) BETWEEN 0 AND 2 } 1 |
do_execsql_test e_expr-13.2.12 { SELECT 1 != (0 BETWEEN 0 AND 2) } 0 |
|
do_execsql_test e_expr-13.2.13 { SELECT 1 LIKE 10 BETWEEN 0 AND 2 } 1 |
do_execsql_test e_expr-13.2.14 { SELECT (1 LIKE 10) BETWEEN 0 AND 2 } 1 |
do_execsql_test e_expr-13.2.15 { SELECT 1 LIKE (10 BETWEEN 0 AND 2) } 0 |
do_execsql_test e_expr-13.2.16 { SELECT 6 BETWEEN 4 AND 8 LIKE 1 } 1 |
do_execsql_test e_expr-13.2.17 { SELECT (6 BETWEEN 4 AND 8) LIKE 1 } 1 |
do_execsql_test e_expr-13.2.18 { SELECT 6 BETWEEN 4 AND (8 LIKE 1) } 0 |
|
do_execsql_test e_expr-13.2.19 { SELECT 0 AND 0 BETWEEN 0 AND 1 } 0 |
do_execsql_test e_expr-13.2.20 { SELECT 0 AND (0 BETWEEN 0 AND 1) } 0 |
do_execsql_test e_expr-13.2.21 { SELECT (0 AND 0) BETWEEN 0 AND 1 } 1 |
do_execsql_test e_expr-13.2.22 { SELECT 0 BETWEEN -1 AND 1 AND 0 } 0 |
do_execsql_test e_expr-13.2.23 { SELECT (0 BETWEEN -1 AND 1) AND 0 } 0 |
do_execsql_test e_expr-13.2.24 { SELECT 0 BETWEEN -1 AND (1 AND 0) } 1 |
|
do_execsql_test e_expr-13.2.25 { SELECT 2 < 3 BETWEEN 0 AND 1 } 1 |
do_execsql_test e_expr-13.2.26 { SELECT (2 < 3) BETWEEN 0 AND 1 } 1 |
do_execsql_test e_expr-13.2.27 { SELECT 2 < (3 BETWEEN 0 AND 1) } 0 |
do_execsql_test e_expr-13.2.28 { SELECT 2 BETWEEN 1 AND 2 < 3 } 0 |
do_execsql_test e_expr-13.2.29 { SELECT 2 BETWEEN 1 AND (2 < 3) } 0 |
do_execsql_test e_expr-13.2.30 { SELECT (2 BETWEEN 1 AND 2) < 3 } 1 |
|
#------------------------------------------------------------------------- |
# Test the statements related to the LIKE and GLOB operators. |
# |
# EVIDENCE-OF: R-16584-60189 The LIKE operator does a pattern matching |
# comparison. |
# |
# EVIDENCE-OF: R-11295-04657 The operand to the right of the LIKE |
# operator contains the pattern and the left hand operand contains the |
# string to match against the pattern. |
# |
do_execsql_test e_expr-14.1.1 { SELECT 'abc%' LIKE 'abcde' } 0 |
do_execsql_test e_expr-14.1.2 { SELECT 'abcde' LIKE 'abc%' } 1 |
|
# EVIDENCE-OF: R-55406-38524 A percent symbol ("%") in the LIKE pattern |
# matches any sequence of zero or more characters in the string. |
# |
do_execsql_test e_expr-14.2.1 { SELECT 'abde' LIKE 'ab%de' } 1 |
do_execsql_test e_expr-14.2.2 { SELECT 'abXde' LIKE 'ab%de' } 1 |
do_execsql_test e_expr-14.2.3 { SELECT 'abABCde' LIKE 'ab%de' } 1 |
|
# EVIDENCE-OF: R-30433-25443 An underscore ("_") in the LIKE pattern |
# matches any single character in the string. |
# |
do_execsql_test e_expr-14.3.1 { SELECT 'abde' LIKE 'ab_de' } 0 |
do_execsql_test e_expr-14.3.2 { SELECT 'abXde' LIKE 'ab_de' } 1 |
do_execsql_test e_expr-14.3.3 { SELECT 'abABCde' LIKE 'ab_de' } 0 |
|
# EVIDENCE-OF: R-59007-20454 Any other character matches itself or its |
# lower/upper case equivalent (i.e. case-insensitive matching). |
# |
do_execsql_test e_expr-14.4.1 { SELECT 'abc' LIKE 'aBc' } 1 |
do_execsql_test e_expr-14.4.2 { SELECT 'aBc' LIKE 'aBc' } 1 |
do_execsql_test e_expr-14.4.3 { SELECT 'ac' LIKE 'aBc' } 0 |
|
# EVIDENCE-OF: R-23648-58527 SQLite only understands upper/lower case |
# for ASCII characters by default. |
# |
# EVIDENCE-OF: R-04532-11527 The LIKE operator is case sensitive by |
# default for unicode characters that are beyond the ASCII range. |
# |
# EVIDENCE-OF: R-44381-11669 the expression |
# 'a' LIKE 'A' is TRUE but |
# 'æ' LIKE 'Æ' is FALSE. |
# |
# The restriction to ASCII characters does not apply if the ICU |
# library is compiled in. When ICU is enabled SQLite does not act |
# as it does "by default". |
# |
do_execsql_test e_expr-14.5.1 { SELECT 'A' LIKE 'a' } 1 |
ifcapable !icu { |
do_execsql_test e_expr-14.5.2 "SELECT '\u00c6' LIKE '\u00e6'" 0 |
} |
|
# EVIDENCE-OF: R-56683-13731 If the optional ESCAPE clause is present, |
# then the expression following the ESCAPE keyword must evaluate to a |
# string consisting of a single character. |
# |
do_catchsql_test e_expr-14.6.1 { |
SELECT 'A' LIKE 'a' ESCAPE '12' |
} {1 {ESCAPE expression must be a single character}} |
do_catchsql_test e_expr-14.6.2 { |
SELECT 'A' LIKE 'a' ESCAPE '' |
} {1 {ESCAPE expression must be a single character}} |
do_catchsql_test e_expr-14.6.3 { SELECT 'A' LIKE 'a' ESCAPE 'x' } {0 1} |
do_catchsql_test e_expr-14.6.4 "SELECT 'A' LIKE 'a' ESCAPE '\u00e6'" {0 1} |
|
# EVIDENCE-OF: R-02045-23762 This character may be used in the LIKE |
# pattern to include literal percent or underscore characters. |
# |
# EVIDENCE-OF: R-13345-31830 The escape character followed by a percent |
# symbol (%), underscore (_), or a second instance of the escape |
# character itself matches a literal percent symbol, underscore, or a |
# single escape character, respectively. |
# |
do_execsql_test e_expr-14.7.1 { SELECT 'abc%' LIKE 'abcX%' ESCAPE 'X' } 1 |
do_execsql_test e_expr-14.7.2 { SELECT 'abc5' LIKE 'abcX%' ESCAPE 'X' } 0 |
do_execsql_test e_expr-14.7.3 { SELECT 'abc' LIKE 'abcX%' ESCAPE 'X' } 0 |
do_execsql_test e_expr-14.7.4 { SELECT 'abcX%' LIKE 'abcX%' ESCAPE 'X' } 0 |
do_execsql_test e_expr-14.7.5 { SELECT 'abc%%' LIKE 'abcX%' ESCAPE 'X' } 0 |
|
do_execsql_test e_expr-14.7.6 { SELECT 'abc_' LIKE 'abcX_' ESCAPE 'X' } 1 |
do_execsql_test e_expr-14.7.7 { SELECT 'abc5' LIKE 'abcX_' ESCAPE 'X' } 0 |
do_execsql_test e_expr-14.7.8 { SELECT 'abc' LIKE 'abcX_' ESCAPE 'X' } 0 |
do_execsql_test e_expr-14.7.9 { SELECT 'abcX_' LIKE 'abcX_' ESCAPE 'X' } 0 |
do_execsql_test e_expr-14.7.10 { SELECT 'abc__' LIKE 'abcX_' ESCAPE 'X' } 0 |
|
do_execsql_test e_expr-14.7.11 { SELECT 'abcX' LIKE 'abcXX' ESCAPE 'X' } 1 |
do_execsql_test e_expr-14.7.12 { SELECT 'abc5' LIKE 'abcXX' ESCAPE 'X' } 0 |
do_execsql_test e_expr-14.7.13 { SELECT 'abc' LIKE 'abcXX' ESCAPE 'X' } 0 |
do_execsql_test e_expr-14.7.14 { SELECT 'abcXX' LIKE 'abcXX' ESCAPE 'X' } 0 |
|
# EVIDENCE-OF: R-51359-17496 The infix LIKE operator is implemented by |
# calling the application-defined SQL functions like(Y,X) or like(Y,X,Z). |
# |
proc likefunc {args} { |
eval lappend ::likeargs $args |
return 1 |
} |
db func like -argcount 2 likefunc |
db func like -argcount 3 likefunc |
set ::likeargs [list] |
do_execsql_test e_expr-15.1.1 { SELECT 'abc' LIKE 'def' } 1 |
do_test e_expr-15.1.2 { set likeargs } {def abc} |
set ::likeargs [list] |
do_execsql_test e_expr-15.1.3 { SELECT 'abc' LIKE 'def' ESCAPE 'X' } 1 |
do_test e_expr-15.1.4 { set likeargs } {def abc X} |
db close |
sqlite3 db test.db |
|
# EVIDENCE-OF: R-22868-25880 The LIKE operator can be made case |
# sensitive using the case_sensitive_like pragma. |
# |
do_execsql_test e_expr-16.1.1 { SELECT 'abcxyz' LIKE 'ABC%' } 1 |
do_execsql_test e_expr-16.1.2 { PRAGMA case_sensitive_like = 1 } {} |
do_execsql_test e_expr-16.1.3 { SELECT 'abcxyz' LIKE 'ABC%' } 0 |
do_execsql_test e_expr-16.1.4 { SELECT 'ABCxyz' LIKE 'ABC%' } 1 |
do_execsql_test e_expr-16.1.5 { PRAGMA case_sensitive_like = 0 } {} |
do_execsql_test e_expr-16.1.6 { SELECT 'abcxyz' LIKE 'ABC%' } 1 |
do_execsql_test e_expr-16.1.7 { SELECT 'ABCxyz' LIKE 'ABC%' } 1 |
|
# EVIDENCE-OF: R-52087-12043 The GLOB operator is similar to LIKE but |
# uses the Unix file globbing syntax for its wildcards. |
# |
# EVIDENCE-OF: R-09813-17279 Also, GLOB is case sensitive, unlike LIKE. |
# |
do_execsql_test e_expr-17.1.1 { SELECT 'abcxyz' GLOB 'abc%' } 0 |
do_execsql_test e_expr-17.1.2 { SELECT 'abcxyz' GLOB 'abc*' } 1 |
do_execsql_test e_expr-17.1.3 { SELECT 'abcxyz' GLOB 'abc___' } 0 |
do_execsql_test e_expr-17.1.4 { SELECT 'abcxyz' GLOB 'abc???' } 1 |
|
do_execsql_test e_expr-17.1.5 { SELECT 'abcxyz' GLOB 'abc*' } 1 |
do_execsql_test e_expr-17.1.6 { SELECT 'ABCxyz' GLOB 'abc*' } 0 |
do_execsql_test e_expr-17.1.7 { SELECT 'abcxyz' GLOB 'ABC*' } 0 |
|
# EVIDENCE-OF: R-39616-20555 Both GLOB and LIKE may be preceded by the |
# NOT keyword to invert the sense of the test. |
# |
do_execsql_test e_expr-17.2.1 { SELECT 'abcxyz' NOT GLOB 'ABC*' } 1 |
do_execsql_test e_expr-17.2.2 { SELECT 'abcxyz' NOT GLOB 'abc*' } 0 |
do_execsql_test e_expr-17.2.3 { SELECT 'abcxyz' NOT LIKE 'ABC%' } 0 |
do_execsql_test e_expr-17.2.4 { SELECT 'abcxyz' NOT LIKE 'abc%' } 0 |
do_execsql_test e_expr-17.2.5 { SELECT 'abdxyz' NOT LIKE 'abc%' } 1 |
|
db nullvalue null |
do_execsql_test e_expr-17.2.6 { SELECT 'abcxyz' NOT GLOB NULL } null |
do_execsql_test e_expr-17.2.7 { SELECT 'abcxyz' NOT LIKE NULL } null |
do_execsql_test e_expr-17.2.8 { SELECT NULL NOT GLOB 'abc*' } null |
do_execsql_test e_expr-17.2.9 { SELECT NULL NOT LIKE 'ABC%' } null |
db nullvalue {} |
|
# EVIDENCE-OF: R-39414-35489 The infix GLOB operator is implemented by |
# calling the function glob(Y,X) and can be modified by overriding that |
# function. |
proc globfunc {args} { |
eval lappend ::globargs $args |
return 1 |
} |
db func glob -argcount 2 globfunc |
set ::globargs [list] |
do_execsql_test e_expr-17.3.1 { SELECT 'abc' GLOB 'def' } 1 |
do_test e_expr-17.3.2 { set globargs } {def abc} |
set ::globargs [list] |
do_execsql_test e_expr-17.3.3 { SELECT 'X' NOT GLOB 'Y' } 0 |
do_test e_expr-17.3.4 { set globargs } {Y X} |
sqlite3 db test.db |
|
# EVIDENCE-OF: R-41650-20872 No regexp() user function is defined by |
# default and so use of the REGEXP operator will normally result in an |
# error message. |
# |
# There is a regexp function if ICU is enabled though. |
# |
|
# USE C# version of REGEXP |
if 0 { |
ifcapable !icu { |
do_catchsql_test e_expr-18.1.1 { |
SELECT regexp('abc', 'def') |
} {1 {no such function: regexp}} |
do_catchsql_test e_expr-18.1.2 { |
SELECT 'abc' REGEXP 'def' |
} {1 {no such function: REGEXP}} |
} |
} else { |
#C# has buildin Regex |
do_catchsql_test e_expr-18.1.1 { |
SELECT regexp('abc', 'def') |
} {0 0} |
do_catchsql_test e_expr-18.1.2 { |
SELECT 'abc' REGEXP 'def' |
} {0 1} |
} |
|
# EVIDENCE-OF: R-33693-50180 The REGEXP operator is a special syntax for |
# the regexp() user function. |
# |
# EVIDENCE-OF: R-57289-13578 If a application-defined SQL function named |
# "regexp" is added at run-time, that function will be called in order |
# to implement the REGEXP operator. |
# |
proc regexpfunc {args} { |
eval lappend ::regexpargs $args |
return 1 |
} |
db func regexp -argcount 2 regexpfunc |
set ::regexpargs [list] |
do_execsql_test e_expr-18.2.1 { SELECT 'abc' REGEXP 'def' } 1 |
do_test e_expr-18.2.2 { set regexpargs } {def abc} |
set ::regexpargs [list] |
do_execsql_test e_expr-18.2.3 { SELECT 'X' NOT REGEXP 'Y' } 0 |
do_test e_expr-18.2.4 { set regexpargs } {Y X} |
sqlite3 db test.db |
|
# EVIDENCE-OF: R-42037-37826 The default match() function implementation |
# raises an exception and is not really useful for anything. |
# |
do_catchsql_test e_expr-19.1.1 { |
SELECT 'abc' MATCH 'def' |
} {1 {unable to use function MATCH in the requested context}} |
do_catchsql_test e_expr-19.1.2 { |
SELECT match('abc', 'def') |
} {1 {unable to use function MATCH in the requested context}} |
|
# EVIDENCE-OF: R-37916-47407 The MATCH operator is a special syntax for |
# the match() application-defined function. |
# |
# EVIDENCE-OF: R-06021-09373 But extensions can override the match() |
# function with more helpful logic. |
# |
proc matchfunc {args} { |
eval lappend ::matchargs $args |
return 1 |
} |
db func match -argcount 2 matchfunc |
set ::matchargs [list] |
do_execsql_test e_expr-19.2.1 { SELECT 'abc' MATCH 'def' } 1 |
do_test e_expr-19.2.2 { set matchargs } {def abc} |
set ::matchargs [list] |
do_execsql_test e_expr-19.2.3 { SELECT 'X' NOT MATCH 'Y' } 0 |
do_test e_expr-19.2.4 { set matchargs } {Y X} |
sqlite3 db test.db |
|
#------------------------------------------------------------------------- |
# Test cases for the testable statements related to the CASE expression. |
# |
# EVIDENCE-OF: R-15199-61389 There are two basic forms of the CASE |
# expression: those with a base expression and those without. |
# |
do_execsql_test e_expr-20.1 { |
SELECT CASE WHEN 1 THEN 'true' WHEN 0 THEN 'false' ELSE 'else' END; |
} {true} |
do_execsql_test e_expr-20.2 { |
SELECT CASE 0 WHEN 1 THEN 'true' WHEN 0 THEN 'false' ELSE 'else' END; |
} {false} |
|
proc var {nm} { |
lappend ::varlist $nm |
return [set "::$nm"] |
} |
db func var var |
|
# EVIDENCE-OF: R-30638-59954 In a CASE without a base expression, each |
# WHEN expression is evaluated and the result treated as a boolean, |
# starting with the leftmost and continuing to the right. |
# |
foreach {a b c} {0 0 0} break |
set varlist [list] |
do_execsql_test e_expr-21.1.1 { |
SELECT CASE WHEN var('a') THEN 'A' |
WHEN var('b') THEN 'B' |
WHEN var('c') THEN 'C' END |
} {{}} |
do_test e_expr-21.1.2 { set varlist } {a b c} |
set varlist [list] |
do_execsql_test e_expr-21.1.3 { |
SELECT CASE WHEN var('c') THEN 'C' |
WHEN var('b') THEN 'B' |
WHEN var('a') THEN 'A' |
ELSE 'no result' |
END |
} {{no result}} |
do_test e_expr-21.1.4 { set varlist } {c b a} |
|
# EVIDENCE-OF: R-39009-25596 The result of the CASE expression is the |
# evaluation of the THEN expression that corresponds to the first WHEN |
# expression that evaluates to true. |
# |
foreach {a b c} {0 1 0} break |
do_execsql_test e_expr-21.2.1 { |
SELECT CASE WHEN var('a') THEN 'A' |
WHEN var('b') THEN 'B' |
WHEN var('c') THEN 'C' |
ELSE 'no result' |
END |
} {B} |
foreach {a b c} {0 1 1} break |
do_execsql_test e_expr-21.2.2 { |
SELECT CASE WHEN var('a') THEN 'A' |
WHEN var('b') THEN 'B' |
WHEN var('c') THEN 'C' |
ELSE 'no result' |
END |
} {B} |
foreach {a b c} {0 0 1} break |
do_execsql_test e_expr-21.2.3 { |
SELECT CASE WHEN var('a') THEN 'A' |
WHEN var('b') THEN 'B' |
WHEN var('c') THEN 'C' |
ELSE 'no result' |
END |
} {C} |
|
# EVIDENCE-OF: R-24227-04807 Or, if none of the WHEN expressions |
# evaluate to true, the result of evaluating the ELSE expression, if |
# any. |
# |
foreach {a b c} {0 0 0} break |
do_execsql_test e_expr-21.3.1 { |
SELECT CASE WHEN var('a') THEN 'A' |
WHEN var('b') THEN 'B' |
WHEN var('c') THEN 'C' |
ELSE 'no result' |
END |
} {{no result}} |
|
# EVIDENCE-OF: R-14168-07579 If there is no ELSE expression and none of |
# the WHEN expressions are true, then the overall result is NULL. |
# |
db nullvalue null |
do_execsql_test e_expr-21.3.2 { |
SELECT CASE WHEN var('a') THEN 'A' |
WHEN var('b') THEN 'B' |
WHEN var('c') THEN 'C' |
END |
} {null} |
db nullvalue {} |
|
# EVIDENCE-OF: R-13943-13592 A NULL result is considered untrue when |
# evaluating WHEN terms. |
# |
do_execsql_test e_expr-21.4.1 { |
SELECT CASE WHEN NULL THEN 'A' WHEN 1 THEN 'B' END |
} {B} |
do_execsql_test e_expr-21.4.2 { |
SELECT CASE WHEN 0 THEN 'A' WHEN NULL THEN 'B' ELSE 'C' END |
} {C} |
|
# EVIDENCE-OF: R-38620-19499 In a CASE with a base expression, the base |
# expression is evaluated just once and the result is compared against |
# the evaluation of each WHEN expression from left to right. |
# |
# Note: This test case tests the "evaluated just once" part of the above |
# statement. Tests associated with the next two statements test that the |
# comparisons take place. |
# |
foreach {a b c} [list [expr 3] [expr 4] [expr 5]] break |
set ::varlist [list] |
do_execsql_test e_expr-22.1.1 { |
SELECT CASE var('a') WHEN 1 THEN 'A' WHEN 2 THEN 'B' WHEN 3 THEN 'C' END |
} {C} |
do_test e_expr-22.1.2 { set ::varlist } {a} |
|
# EVIDENCE-OF: R-07667-49537 The result of the CASE expression is the |
# evaluation of the THEN expression that corresponds to the first WHEN |
# expression for which the comparison is true. |
# |
do_execsql_test e_expr-22.2.1 { |
SELECT CASE 23 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' END |
} {B} |
do_execsql_test e_expr-22.2.2 { |
SELECT CASE 1 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' END |
} {A} |
|
# EVIDENCE-OF: R-47543-32145 Or, if none of the WHEN expressions |
# evaluate to a value equal to the base expression, the result of |
# evaluating the ELSE expression, if any. |
# |
do_execsql_test e_expr-22.3.1 { |
SELECT CASE 24 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' ELSE 'D' END |
} {D} |
|
# EVIDENCE-OF: R-54721-48557 If there is no ELSE expression and none of |
# the WHEN expressions produce a result equal to the base expression, |
# the overall result is NULL. |
# |
do_execsql_test e_expr-22.4.1 { |
SELECT CASE 24 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' END |
} {{}} |
db nullvalue null |
do_execsql_test e_expr-22.4.2 { |
SELECT CASE 24 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' END |
} {null} |
db nullvalue {} |
|
# EVIDENCE-OF: R-11479-62774 When comparing a base expression against a |
# WHEN expression, the same collating sequence, affinity, and |
# NULL-handling rules apply as if the base expression and WHEN |
# expression are respectively the left- and right-hand operands of an = |
# operator. |
# |
proc rev {str} { |
set ret "" |
set chars [split $str] |
for {set i [expr [llength $chars]-1]} {$i>=0} {incr i -1} { |
append ret [lindex $chars $i] |
} |
set ret |
} |
proc reverse {lhs rhs} { |
string compare [rev $lhs] [ref $rhs] |
} |
db collate reverse reverse |
do_execsql_test e_expr-23.1.1 { |
CREATE TABLE t1( |
a TEXT COLLATE NOCASE, |
b COLLATE REVERSE, |
c INTEGER, |
d BLOB |
); |
INSERT INTO t1 VALUES('abc', 'cba', 55, 34.5); |
} {} |
do_execsql_test e_expr-23.1.2 { |
SELECT CASE a WHEN 'xyz' THEN 'A' WHEN 'AbC' THEN 'B' END FROM t1 |
} {B} |
do_execsql_test e_expr-23.1.3 { |
SELECT CASE 'AbC' WHEN 'abc' THEN 'A' WHEN a THEN 'B' END FROM t1 |
} {B} |
do_execsql_test e_expr-23.1.4 { |
SELECT CASE a WHEN b THEN 'A' ELSE 'B' END FROM t1 |
} {B} |
do_execsql_test e_expr-23.1.5 { |
SELECT CASE b WHEN a THEN 'A' ELSE 'B' END FROM t1 |
} {A} |
do_execsql_test e_expr-23.1.6 { |
SELECT CASE 55 WHEN '55' THEN 'A' ELSE 'B' END |
} {B} |
do_execsql_test e_expr-23.1.7 { |
SELECT CASE c WHEN '55' THEN 'A' ELSE 'B' END FROM t1 |
} {A} |
do_execsql_test e_expr-23.1.8 { |
SELECT CASE '34.5' WHEN d THEN 'A' ELSE 'B' END FROM t1 |
} {B} |
do_execsql_test e_expr-23.1.9 { |
SELECT CASE NULL WHEN NULL THEN 'A' ELSE 'B' END |
} {B} |
|
# EVIDENCE-OF: R-37304-39405 If the base expression is NULL then the |
# result of the CASE is always the result of evaluating the ELSE |
# expression if it exists, or NULL if it does not. |
# |
do_execsql_test e_expr-24.1.1 { |
SELECT CASE NULL WHEN 'abc' THEN 'A' WHEN 'def' THEN 'B' END; |
} {{}} |
do_execsql_test e_expr-24.1.2 { |
SELECT CASE NULL WHEN 'abc' THEN 'A' WHEN 'def' THEN 'B' ELSE 'C' END; |
} {C} |
|
# EVIDENCE-OF: R-56280-17369 Both forms of the CASE expression use lazy, |
# or short-circuit, evaluation. |
# |
set varlist [list] |
foreach {a b c} {0 1 0} break |
do_execsql_test e_expr-25.1.1 { |
SELECT CASE WHEN var('a') THEN 'A' |
WHEN var('b') THEN 'B' |
WHEN var('c') THEN 'C' |
END |
} {B} |
do_test e_expr-25.1.2 { set ::varlist } {a b} |
set varlist [list] |
do_execsql_test e_expr-25.1.3 { |
SELECT CASE 0 WHEN var('a') THEN 'A' |
WHEN var('b') THEN 'B' |
WHEN var('c') THEN 'C' |
END |
} {A} |
do_test e_expr-25.1.4 { set ::varlist } {a} |
|
# EVIDENCE-OF: R-34773-62253 The only difference between the following |
# two CASE expressions is that the x expression is evaluated exactly |
# once in the first example but might be evaluated multiple times in the |
# second: CASE x WHEN w1 THEN r1 WHEN w2 THEN r2 ELSE r3 END CASE WHEN |
# x=w1 THEN r1 WHEN x=w2 THEN r2 ELSE r3 END |
# |
proc ceval {x} { |
incr ::evalcount |
return $x |
} |
db func ceval ceval |
set ::evalcount 0 |
|
do_execsql_test e_expr-26.1.1 { |
CREATE TABLE t2(x, w1, r1, w2, r2, r3); |
INSERT INTO t2 VALUES(1, 1, 'R1', 2, 'R2', 'R3'); |
INSERT INTO t2 VALUES(2, 1, 'R1', 2, 'R2', 'R3'); |
INSERT INTO t2 VALUES(3, 1, 'R1', 2, 'R2', 'R3'); |
} {} |
do_execsql_test e_expr-26.1.2 { |
SELECT CASE x WHEN w1 THEN r1 WHEN w2 THEN r2 ELSE r3 END FROM t2 |
} {R1 R2 R3} |
do_execsql_test e_expr-26.1.3 { |
SELECT CASE WHEN x=w1 THEN r1 WHEN x=w2 THEN r2 ELSE r3 END FROM t2 |
} {R1 R2 R3} |
|
do_execsql_test e_expr-26.1.4 { |
SELECT CASE ceval(x) WHEN w1 THEN r1 WHEN w2 THEN r2 ELSE r3 END FROM t2 |
} {R1 R2 R3} |
do_test e_expr-26.1.5 { set ::evalcount } {3} |
set ::evalcount 0 |
do_execsql_test e_expr-26.1.6 { |
SELECT CASE |
WHEN ceval(x)=w1 THEN r1 |
WHEN ceval(x)=w2 THEN r2 |
ELSE r3 END |
FROM t2 |
} {R1 R2 R3} |
do_test e_expr-26.1.6 { set ::evalcount } {5} |
|
|
#------------------------------------------------------------------------- |
# Test statements related to CAST expressions. |
# |
# EVIDENCE-OF: R-65079-31758 Application of a CAST expression is |
# different to application of a column affinity, as with a CAST |
# expression the storage class conversion is forced even if it is lossy |
# and irrreversible. |
# |
do_execsql_test e_expr-27.1.1 { |
CREATE TABLE t3(a TEXT, b REAL, c INTEGER); |
INSERT INTO t3 VALUES(X'555655', '1.23abc', 4.5); |
SELECT typeof(a), a, typeof(b), b, typeof(c), c FROM t3; |
} {blob UVU text 1.23abc real 4.5} |
do_execsql_test e_expr-27.1.2 { |
SELECT |
typeof(CAST(X'555655' as TEXT)), CAST(X'555655' as TEXT), |
typeof(CAST('1.23abc' as REAL)), CAST('1.23abc' as REAL), |
typeof(CAST(4.5 as INTEGER)), CAST(4.5 as INTEGER) |
} {text UVU real 1.23 integer 4} |
|
# EVIDENCE-OF: R-27225-65050 If the value of <expr> is NULL, then |
# the result of the CAST expression is also NULL. |
# |
do_expr_test e_expr-27.2.1 { CAST(NULL AS integer) } null {} |
do_expr_test e_expr-27.2.2 { CAST(NULL AS text) } null {} |
do_expr_test e_expr-27.2.3 { CAST(NULL AS blob) } null {} |
do_expr_test e_expr-27.2.4 { CAST(NULL AS number) } null {} |
|
# EVIDENCE-OF: R-31076-23575 Casting a value to a <type-name> with |
# no affinity causes the value to be converted into a BLOB. |
# |
do_expr_test e_expr-27.3.1 { CAST('abc' AS blob) } blob abc |
do_expr_test e_expr-27.3.2 { CAST('def' AS shobblob_x) } blob def |
do_expr_test e_expr-27.3.3 { CAST('ghi' AS abbLOb10) } blob ghi |
|
# EVIDENCE-OF: R-22956-37754 Casting to a BLOB consists of first casting |
# the value to TEXT in the encoding of the database connection, then |
# interpreting the resulting byte sequence as a BLOB instead of as TEXT. |
# |
do_qexpr_test e_expr-27.4.1 { CAST('ghi' AS blob) } X'676869' |
do_qexpr_test e_expr-27.4.2 { CAST(456 AS blob) } X'343536' |
do_qexpr_test e_expr-27.4.3 { CAST(1.78 AS blob) } X'312E3738' |
rename db db2 |
sqlite3 db :memory: |
ifcapable {utf16} { |
db eval { PRAGMA encoding = 'utf-16le' } |
do_qexpr_test e_expr-27.4.4 { CAST('ghi' AS blob) } X'670068006900' |
do_qexpr_test e_expr-27.4.5 { CAST(456 AS blob) } X'340035003600' |
do_qexpr_test e_expr-27.4.6 { CAST(1.78 AS blob) } X'31002E0037003800' |
} |
db close |
sqlite3 db :memory: |
db eval { PRAGMA encoding = 'utf-16be' } |
ifcapable {utf16} { |
do_qexpr_test e_expr-27.4.7 { CAST('ghi' AS blob) } X'006700680069' |
do_qexpr_test e_expr-27.4.8 { CAST(456 AS blob) } X'003400350036' |
do_qexpr_test e_expr-27.4.9 { CAST(1.78 AS blob) } X'0031002E00370038' |
} |
db close |
rename db2 db |
|
# EVIDENCE-OF: R-04207-37981 To cast a BLOB value to TEXT, the sequence |
# of bytes that make up the BLOB is interpreted as text encoded using |
# the database encoding. |
# |
do_expr_test e_expr-28.1.1 { CAST (X'676869' AS text) } text ghi |
do_expr_test e_expr-28.1.2 { CAST (X'670068006900' AS text) } text g |
rename db db2 |
sqlite3 db :memory: |
db eval { PRAGMA encoding = 'utf-16le' } |
ifcapable {utf16} { |
do_expr_test e_expr-28.1.3 { CAST (X'676869' AS text) == 'ghi' } integer 0 |
do_expr_test e_expr-28.1.4 { CAST (X'670068006900' AS text) } text ghi |
} |
db close |
rename db2 db |
|
# EVIDENCE-OF: R-22235-47006 Casting an INTEGER or REAL value into TEXT |
# renders the value as if via sqlite3_snprintf() except that the |
# resulting TEXT uses the encoding of the database connection. |
# |
do_expr_test e_expr-28.2.1 { CAST (1 AS text) } text 1 |
do_expr_test e_expr-28.2.2 { CAST (45 AS text) } text 45 |
do_expr_test e_expr-28.2.3 { CAST (-45 AS text) } text -45 |
do_expr_test e_expr-28.2.4 { CAST (8.8 AS text) } text 8.8 |
do_expr_test e_expr-28.2.5 { CAST (2.3e+5 AS text) } text 230000.0 |
do_expr_test e_expr-28.2.6 { CAST (-2.3e-5 AS text) } text -2.3e-05 |
do_expr_test e_expr-28.2.7 { CAST (0.0 AS text) } text 0.0 |
do_expr_test e_expr-28.2.7 { CAST (0 AS text) } text 0 |
|
# EVIDENCE-OF: R-26346-36443 When casting a BLOB value to a REAL, the |
# value is first converted to TEXT. |
# |
do_expr_test e_expr-29.1.1 { CAST (X'312E3233' AS REAL) } real 1.23 |
do_expr_test e_expr-29.1.2 { CAST (X'3233302E30' AS REAL) } real 230.0 |
do_expr_test e_expr-29.1.3 { CAST (X'2D392E3837' AS REAL) } real -9.87 |
do_expr_test e_expr-29.1.4 { CAST (X'302E30303031' AS REAL) } real 0.0001 |
rename db db2 |
sqlite3 db :memory: |
ifcapable {utf16} { |
db eval { PRAGMA encoding = 'utf-16le' } |
do_expr_test e_expr-29.1.5 { |
CAST (X'31002E0032003300' AS REAL) } real 1.23 |
do_expr_test e_expr-29.1.6 { |
CAST (X'3200330030002E003000' AS REAL) } real 230.0 |
do_expr_test e_expr-29.1.7 { |
CAST (X'2D0039002E0038003700' AS REAL) } real -9.87 |
do_expr_test e_expr-29.1.8 { |
CAST (X'30002E003000300030003100' AS REAL) } real 0.0001 |
} |
db close |
rename db2 db |
|
# EVIDENCE-OF: R-54898-34554 When casting a TEXT value to REAL, the |
# longest possible prefix of the value that can be interpreted as a real |
# number is extracted from the TEXT value and the remainder ignored. |
# |
do_expr_test e_expr-29.2.1 { CAST('1.23abcd' AS REAL) } real 1.23 |
do_expr_test e_expr-29.2.2 { CAST('1.45.23abcd' AS REAL) } real 1.45 |
do_expr_test e_expr-29.2.3 { CAST('-2.12e-01ABC' AS REAL) } real -0.212 |
do_expr_test e_expr-29.2.4 { CAST('1 2 3 4' AS REAL) } real 1.0 |
|
# EVIDENCE-OF: R-11321-47427 Any leading spaces in the TEXT value are |
# ignored when converging from TEXT to REAL. |
# |
do_expr_test e_expr-29.3.1 { CAST(' 1.23abcd' AS REAL) } real 1.23 |
do_expr_test e_expr-29.3.2 { CAST(' 1.45.23abcd' AS REAL) } real 1.45 |
do_expr_test e_expr-29.3.3 { CAST(' -2.12e-01ABC' AS REAL) } real -0.212 |
do_expr_test e_expr-29.3.4 { CAST(' 1 2 3 4' AS REAL) } real 1.0 |
|
# EVIDENCE-OF: R-22662-28218 If there is no prefix that can be |
# interpreted as a real number, the result of the conversion is 0.0. |
# |
do_expr_test e_expr-29.4.1 { CAST('' AS REAL) } real 0.0 |
do_expr_test e_expr-29.4.2 { CAST('not a number' AS REAL) } real 0.0 |
do_expr_test e_expr-29.4.3 { CAST('XXI' AS REAL) } real 0.0 |
|
# EVIDENCE-OF: R-21829-14563 When casting a BLOB value to INTEGER, the |
# value is first converted to TEXT. |
# |
do_expr_test e_expr-30.1.1 { CAST(X'313233' AS INTEGER) } integer 123 |
do_expr_test e_expr-30.1.2 { CAST(X'2D363738' AS INTEGER) } integer -678 |
do_expr_test e_expr-30.1.3 { |
CAST(X'31303030303030' AS INTEGER) |
} integer 1000000 |
do_expr_test e_expr-30.1.4 { |
CAST(X'2D31313235383939393036383432363234' AS INTEGER) |
} integer -1125899906842624 |
|
rename db db2 |
sqlite3 db :memory: |
ifcapable {utf16} { |
execsql { PRAGMA encoding = 'utf-16be' } |
do_expr_test e_expr-30.1.5 { CAST(X'003100320033' AS INTEGER) } integer 123 |
do_expr_test e_expr-30.1.6 { CAST(X'002D003600370038' AS INTEGER) } integer -678 |
do_expr_test e_expr-30.1.7 { |
CAST(X'0031003000300030003000300030' AS INTEGER) |
} integer 1000000 |
do_expr_test e_expr-30.1.8 { |
CAST(X'002D0031003100320035003800390039003900300036003800340032003600320034' AS INTEGER) |
} integer -1125899906842624 |
} |
db close |
rename db2 db |
|
# EVIDENCE-OF: R-47612-45842 When casting a TEXT value to INTEGER, the |
# longest possible prefix of the value that can be interpreted as an |
# integer number is extracted from the TEXT value and the remainder |
# ignored. |
# |
do_expr_test e_expr-30.2.1 { CAST('123abcd' AS INT) } integer 123 |
do_expr_test e_expr-30.2.2 { CAST('14523abcd' AS INT) } integer 14523 |
do_expr_test e_expr-30.2.3 { CAST('-2.12e-01ABC' AS INT) } integer -2 |
do_expr_test e_expr-30.2.4 { CAST('1 2 3 4' AS INT) } integer 1 |
|
# EVIDENCE-OF: R-34400-33772 Any leading spaces in the TEXT value when |
# converting from TEXT to INTEGER are ignored. |
# |
do_expr_test e_expr-30.3.1 { CAST(' 123abcd' AS INT) } integer 123 |
do_expr_test e_expr-30.3.2 { CAST(' 14523abcd' AS INT) } integer 14523 |
do_expr_test e_expr-30.3.3 { CAST(' -2.12e-01ABC' AS INT) } integer -2 |
do_expr_test e_expr-30.3.4 { CAST(' 1 2 3 4' AS INT) } integer 1 |
|
# EVIDENCE-OF: R-43164-44276 If there is no prefix that can be |
# interpreted as an integer number, the result of the conversion is 0. |
# |
do_expr_test e_expr-30.4.1 { CAST('' AS INTEGER) } integer 0 |
do_expr_test e_expr-30.4.2 { CAST('not a number' AS INTEGER) } integer 0 |
do_expr_test e_expr-30.4.3 { CAST('XXI' AS INTEGER) } integer 0 |
|
# EVIDENCE-OF: R-00741-38776 A cast of a REAL value into an INTEGER will |
# truncate the fractional part of the REAL. |
# |
do_expr_test e_expr-31.1.1 { CAST(3.14159 AS INTEGER) } integer 3 |
do_expr_test e_expr-31.1.2 { CAST(1.99999 AS INTEGER) } integer 1 |
do_expr_test e_expr-31.1.3 { CAST(-1.99999 AS INTEGER) } integer -1 |
do_expr_test e_expr-31.1.4 { CAST(-0.99999 AS INTEGER) } integer 0 |
|
# EVIDENCE-OF: R-49503-28105 If a REAL is too large to be represented as |
# an INTEGER then the result of the cast is the largest negative |
# integer: -9223372036854775808. |
# |
do_expr_test e_expr-31.2.1 { CAST(2e+50 AS INT) } integer -9223372036854775808 |
do_expr_test e_expr-31.2.2 { CAST(-2e+50 AS INT) } integer -9223372036854775808 |
do_expr_test e_expr-31.2.3 { |
CAST(-9223372036854775809.0 AS INT) |
} integer -9223372036854775808 |
do_expr_test e_expr-31.2.4 { |
CAST(9223372036854775809.0 AS INT) |
} integer -9223372036854775808 |
|
|
# EVIDENCE-OF: R-09295-61337 Casting a TEXT or BLOB value into NUMERIC |
# first does a forced conversion into REAL but then further converts the |
# result into INTEGER if and only if the conversion from REAL to INTEGER |
# is lossless and reversible. |
# |
do_expr_test e_expr-32.1.1 { CAST('45' AS NUMERIC) } integer 45 |
do_expr_test e_expr-32.1.2 { CAST('45.0' AS NUMERIC) } integer 45 |
do_expr_test e_expr-32.1.3 { CAST('45.2' AS NUMERIC) } real 45.2 |
do_expr_test e_expr-32.1.4 { CAST('11abc' AS NUMERIC) } integer 11 |
do_expr_test e_expr-32.1.5 { CAST('11.1abc' AS NUMERIC) } real 11.1 |
|
# EVIDENCE-OF: R-30347-18702 Casting a REAL or INTEGER value to NUMERIC |
# is a no-op, even if a real value could be losslessly converted to an |
# integer. |
# |
do_expr_test e_expr-32.2.1 { CAST(13.0 AS NUMERIC) } real 13.0 |
do_expr_test e_expr-32.2.2 { CAST(13.5 AS NUMERIC) } real 13.5 |
|
do_expr_test e_expr-32.2.3 { |
CAST(-9223372036854775808 AS NUMERIC) |
} integer -9223372036854775808 |
do_expr_test e_expr-32.2.4 { |
CAST(9223372036854775807 AS NUMERIC) |
} integer 9223372036854775807 |
|
# EVIDENCE-OF: R-64550-29191 Note that the result from casting any |
# non-BLOB value into a BLOB and the result from casting any BLOB value |
# into a non-BLOB value may be different depending on whether the |
# database encoding is UTF-8, UTF-16be, or UTF-16le. |
# |
ifcapable {utf16} { |
sqlite3 db1 :memory: ; db1 eval { PRAGMA encoding = 'utf-8' } |
sqlite3 db2 :memory: ; db2 eval { PRAGMA encoding = 'utf-16le' } |
sqlite3 db3 :memory: ; db3 eval { PRAGMA encoding = 'utf-16be' } |
foreach {tn castexpr differs} { |
1 { CAST(123 AS BLOB) } 1 |
2 { CAST('' AS BLOB) } 0 |
3 { CAST('abcd' AS BLOB) } 1 |
|
4 { CAST(X'abcd' AS TEXT) } 1 |
5 { CAST(X'' AS TEXT) } 0 |
} { |
set r1 [db1 eval "SELECT typeof($castexpr), quote($castexpr)"] |
set r2 [db2 eval "SELECT typeof($castexpr), quote($castexpr)"] |
set r3 [db3 eval "SELECT typeof($castexpr), quote($castexpr)"] |
|
if {$differs} { |
set res [expr {$r1!=$r2 && $r2!=$r3}] |
} else { |
set res [expr {$r1==$r2 && $r2==$r3}] |
} |
|
do_test e_expr-33.1.$tn {set res} 1 |
} |
db1 close |
db2 close |
db3 close |
} |
|
#------------------------------------------------------------------------- |
# Test statements related to the EXISTS and NOT EXISTS operators. |
# |
catch { db close } |
file delete -force test.db |
sqlite3 db test.db |
|
do_execsql_test e_expr-34.1 { |
CREATE TABLE t1(a, b); |
INSERT INTO t1 VALUES(1, 2); |
INSERT INTO t1 VALUES(NULL, 2); |
INSERT INTO t1 VALUES(1, NULL); |
INSERT INTO t1 VALUES(NULL, NULL); |
} {} |
|
# EVIDENCE-OF: R-25588-27181 The EXISTS operator always evaluates to one |
# of the integer values 0 and 1. |
# |
# This statement is not tested by itself. Instead, all e_expr-34.* tests |
# following this point explicitly test that specific invocations of EXISTS |
# return either integer 0 or integer 1. |
# |
|
# EVIDENCE-OF: R-58553-63740 If executing the SELECT statement specified |
# as the right-hand operand of the EXISTS operator would return one or |
# more rows, then the EXISTS operator evaluates to 1. |
# |
foreach {tn expr} { |
1 { EXISTS ( SELECT a FROM t1 ) } |
2 { EXISTS ( SELECT b FROM t1 ) } |
3 { EXISTS ( SELECT 24 ) } |
4 { EXISTS ( SELECT NULL ) } |
5 { EXISTS ( SELECT a FROM t1 WHERE a IS NULL ) } |
} { |
do_expr_test e_expr-34.2.$tn $expr integer 1 |
} |
|
# EVIDENCE-OF: R-19673-40972 If executing the SELECT would return no |
# rows at all, then the EXISTS operator evaluates to 0. |
# |
foreach {tn expr} { |
1 { EXISTS ( SELECT a FROM t1 WHERE 0) } |
2 { EXISTS ( SELECT b FROM t1 WHERE a = 5) } |
3 { EXISTS ( SELECT 24 WHERE 0) } |
4 { EXISTS ( SELECT NULL WHERE 1=2) } |
} { |
do_expr_test e_expr-34.3.$tn $expr integer 0 |
} |
|
# EVIDENCE-OF: R-35109-49139 The number of columns in each row returned |
# by the SELECT statement (if any) and the specific values returned have |
# no effect on the results of the EXISTS operator. |
# |
foreach {tn expr res} { |
1 { EXISTS ( SELECT * FROM t1 ) } 1 |
2 { EXISTS ( SELECT *, *, * FROM t1 ) } 1 |
3 { EXISTS ( SELECT 24, 25 ) } 1 |
4 { EXISTS ( SELECT NULL, NULL, NULL ) } 1 |
5 { EXISTS ( SELECT a,b,a||b FROM t1 WHERE a IS NULL ) } 1 |
|
6 { EXISTS ( SELECT a, a FROM t1 WHERE 0) } 0 |
7 { EXISTS ( SELECT b, b, a FROM t1 WHERE a = 5) } 0 |
8 { EXISTS ( SELECT 24, 46, 89 WHERE 0) } 0 |
9 { EXISTS ( SELECT NULL, NULL WHERE 1=2) } 0 |
} { |
do_expr_test e_expr-34.4.$tn $expr integer $res |
} |
|
# EVIDENCE-OF: R-10645-12439 In particular, rows containing NULL values |
# are not handled any differently from rows without NULL values. |
# |
foreach {tn e1 e2} { |
1 { EXISTS (SELECT 'not null') } { EXISTS (SELECT NULL) } |
2 { EXISTS (SELECT NULL FROM t1) } { EXISTS (SELECT 'bread' FROM t1) } |
} { |
set res [db one "SELECT $e1"] |
do_expr_test e_expr-34.5.${tn}a $e1 integer $res |
do_expr_test e_expr-34.5.${tn}b $e2 integer $res |
} |
|
#------------------------------------------------------------------------- |
# Test statements related to scalar sub-queries. |
# |
|
catch { db close } |
file delete -force test.db |
sqlite3 db test.db |
do_test e_expr-35.0 { |
execsql { |
CREATE TABLE t2(a, b); |
INSERT INTO t2 VALUES('one', 'two'); |
INSERT INTO t2 VALUES('three', NULL); |
INSERT INTO t2 VALUES(4, 5.0); |
} |
} {} |
|
# EVIDENCE-OF: R-00980-39256 A SELECT statement enclosed in parentheses |
# may appear as a scalar quantity. |
# |
# EVIDENCE-OF: R-56294-03966 All types of SELECT statement, including |
# aggregate and compound SELECT queries (queries with keywords like |
# UNION or EXCEPT) are allowed as scalar subqueries. |
# |
do_expr_test e_expr-35.1.1 { (SELECT 35) } integer 35 |
do_expr_test e_expr-35.1.2 { (SELECT NULL) } null {} |
|
do_expr_test e_expr-35.1.3 { (SELECT count(*) FROM t2) } integer 3 |
do_expr_test e_expr-35.1.4 { (SELECT 4 FROM t2) } integer 4 |
|
do_expr_test e_expr-35.1.5 { |
(SELECT b FROM t2 UNION SELECT a+1 FROM t2) |
} null {} |
do_expr_test e_expr-35.1.6 { |
(SELECT a FROM t2 UNION SELECT COALESCE(b, 55) FROM t2 ORDER BY 1) |
} integer 4 |
|
# EVIDENCE-OF: R-46899-53765 A SELECT used as a scalar quantity must |
# return a result set with a single column. |
# |
# The following block tests that errors are returned in a bunch of cases |
# where a subquery returns more than one column. |
# |
set M {only a single result allowed for a SELECT that is part of an expression} |
foreach {tn sql} { |
1 { SELECT (SELECT * FROM t2 UNION SELECT a+1, b+1 FROM t2) } |
2 { SELECT (SELECT * FROM t2 UNION SELECT a+1, b+1 FROM t2 ORDER BY 1) } |
3 { SELECT (SELECT 1, 2) } |
4 { SELECT (SELECT NULL, NULL, NULL) } |
5 { SELECT (SELECT * FROM t2) } |
6 { SELECT (SELECT * FROM (SELECT 1, 2, 3)) } |
} { |
do_catchsql_test e_expr-35.2.$tn $sql [list 1 $M] |
} |
|
# EVIDENCE-OF: R-35764-28041 The result of the expression is the value |
# of the only column in the first row returned by the SELECT statement. |
# |
# EVIDENCE-OF: R-41898-06686 If the SELECT yields more than one result |
# row, all rows after the first are ignored. |
# |
do_execsql_test e_expr-36.3.1 { |
CREATE TABLE t4(x, y); |
INSERT INTO t4 VALUES(1, 'one'); |
INSERT INTO t4 VALUES(2, 'two'); |
INSERT INTO t4 VALUES(3, 'three'); |
} {} |
|
foreach {tn expr restype resval} { |
2 { ( SELECT x FROM t4 ORDER BY x ) } integer 1 |
3 { ( SELECT x FROM t4 ORDER BY y ) } integer 1 |
4 { ( SELECT x FROM t4 ORDER BY x DESC ) } integer 3 |
5 { ( SELECT x FROM t4 ORDER BY y DESC ) } integer 2 |
6 { ( SELECT y FROM t4 ORDER BY y DESC ) } text two |
|
7 { ( SELECT sum(x) FROM t4 ) } integer 6 |
8 { ( SELECT group_concat(y,'') FROM t4 ) } text onetwothree |
9 { ( SELECT max(x) FROM t4 WHERE y LIKE '___') } integer 2 |
|
} { |
do_expr_test e_expr-36.3.$tn $expr $restype $resval |
} |
|
# EVIDENCE-OF: R-25492-41572 If the SELECT yields no rows, then the |
# value of the expression is NULL. |
# |
foreach {tn expr} { |
1 { ( SELECT x FROM t4 WHERE x>3 ORDER BY x ) } |
2 { ( SELECT x FROM t4 WHERE y<'one' ORDER BY y ) } |
} { |
do_expr_test e_expr-36.4.$tn $expr null {} |
} |
|
|
finish_test |