544 lines
14 KiB
Plaintext
544 lines
14 KiB
Plaintext
# 2001 September 15
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this file is testing built-in functions.
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#
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# $Id: func.test,v 1.42 2005/11/14 22:29:06 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Create a table to work with.
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#
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do_test func-0.0 {
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execsql {CREATE TABLE tbl1(t1 text)}
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foreach word {this program is free software} {
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execsql "INSERT INTO tbl1 VALUES('$word')"
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}
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execsql {SELECT t1 FROM tbl1 ORDER BY t1}
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} {free is program software this}
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do_test func-0.1 {
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execsql {
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CREATE TABLE t2(a);
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INSERT INTO t2 VALUES(1);
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INSERT INTO t2 VALUES(NULL);
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INSERT INTO t2 VALUES(345);
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INSERT INTO t2 VALUES(NULL);
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INSERT INTO t2 VALUES(67890);
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SELECT * FROM t2;
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}
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} {1 {} 345 {} 67890}
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# Check out the length() function
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#
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do_test func-1.0 {
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execsql {SELECT length(t1) FROM tbl1 ORDER BY t1}
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} {4 2 7 8 4}
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do_test func-1.1 {
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set r [catch {execsql {SELECT length(*) FROM tbl1 ORDER BY t1}} msg]
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lappend r $msg
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} {1 {wrong number of arguments to function length()}}
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do_test func-1.2 {
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set r [catch {execsql {SELECT length(t1,5) FROM tbl1 ORDER BY t1}} msg]
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lappend r $msg
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} {1 {wrong number of arguments to function length()}}
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do_test func-1.3 {
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execsql {SELECT length(t1), count(*) FROM tbl1 GROUP BY length(t1)
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ORDER BY length(t1)}
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} {2 1 4 2 7 1 8 1}
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do_test func-1.4 {
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execsql {SELECT coalesce(length(a),-1) FROM t2}
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} {1 -1 3 -1 5}
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# Check out the substr() function
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#
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do_test func-2.0 {
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execsql {SELECT substr(t1,1,2) FROM tbl1 ORDER BY t1}
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} {fr is pr so th}
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do_test func-2.1 {
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execsql {SELECT substr(t1,2,1) FROM tbl1 ORDER BY t1}
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} {r s r o h}
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do_test func-2.2 {
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execsql {SELECT substr(t1,3,3) FROM tbl1 ORDER BY t1}
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} {ee {} ogr ftw is}
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do_test func-2.3 {
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execsql {SELECT substr(t1,-1,1) FROM tbl1 ORDER BY t1}
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} {e s m e s}
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do_test func-2.4 {
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execsql {SELECT substr(t1,-1,2) FROM tbl1 ORDER BY t1}
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} {e s m e s}
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do_test func-2.5 {
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execsql {SELECT substr(t1,-2,1) FROM tbl1 ORDER BY t1}
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} {e i a r i}
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do_test func-2.6 {
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execsql {SELECT substr(t1,-2,2) FROM tbl1 ORDER BY t1}
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} {ee is am re is}
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do_test func-2.7 {
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execsql {SELECT substr(t1,-4,2) FROM tbl1 ORDER BY t1}
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} {fr {} gr wa th}
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do_test func-2.8 {
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execsql {SELECT t1 FROM tbl1 ORDER BY substr(t1,2,20)}
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} {this software free program is}
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do_test func-2.9 {
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execsql {SELECT substr(a,1,1) FROM t2}
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} {1 {} 3 {} 6}
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do_test func-2.10 {
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execsql {SELECT substr(a,2,2) FROM t2}
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} {{} {} 45 {} 78}
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# Only do the following tests if TCL has UTF-8 capabilities
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#
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if {"\u1234"!="u1234"} {
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# Put some UTF-8 characters in the database
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#
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do_test func-3.0 {
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execsql {DELETE FROM tbl1}
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foreach word "contains UTF-8 characters hi\u1234ho" {
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execsql "INSERT INTO tbl1 VALUES('$word')"
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}
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execsql {SELECT t1 FROM tbl1 ORDER BY t1}
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} "UTF-8 characters contains hi\u1234ho"
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do_test func-3.1 {
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execsql {SELECT length(t1) FROM tbl1 ORDER BY t1}
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} {5 10 8 5}
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do_test func-3.2 {
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execsql {SELECT substr(t1,1,2) FROM tbl1 ORDER BY t1}
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} {UT ch co hi}
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do_test func-3.3 {
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execsql {SELECT substr(t1,1,3) FROM tbl1 ORDER BY t1}
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} "UTF cha con hi\u1234"
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do_test func-3.4 {
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execsql {SELECT substr(t1,2,2) FROM tbl1 ORDER BY t1}
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} "TF ha on i\u1234"
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do_test func-3.5 {
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execsql {SELECT substr(t1,2,3) FROM tbl1 ORDER BY t1}
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} "TF- har ont i\u1234h"
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do_test func-3.6 {
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execsql {SELECT substr(t1,3,2) FROM tbl1 ORDER BY t1}
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} "F- ar nt \u1234h"
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do_test func-3.7 {
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execsql {SELECT substr(t1,4,2) FROM tbl1 ORDER BY t1}
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} "-8 ra ta ho"
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do_test func-3.8 {
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execsql {SELECT substr(t1,-1,1) FROM tbl1 ORDER BY t1}
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} "8 s s o"
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do_test func-3.9 {
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execsql {SELECT substr(t1,-3,2) FROM tbl1 ORDER BY t1}
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} "F- er in \u1234h"
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do_test func-3.10 {
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execsql {SELECT substr(t1,-4,3) FROM tbl1 ORDER BY t1}
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} "TF- ter ain i\u1234h"
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do_test func-3.99 {
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execsql {DELETE FROM tbl1}
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foreach word {this program is free software} {
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execsql "INSERT INTO tbl1 VALUES('$word')"
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}
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execsql {SELECT t1 FROM tbl1}
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} {this program is free software}
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} ;# End \u1234!=u1234
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# Test the abs() and round() functions.
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#
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do_test func-4.1 {
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execsql {
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CREATE TABLE t1(a,b,c);
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INSERT INTO t1 VALUES(1,2,3);
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INSERT INTO t1 VALUES(2,1.2345678901234,-12345.67890);
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INSERT INTO t1 VALUES(3,-2,-5);
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}
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catchsql {SELECT abs(a,b) FROM t1}
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} {1 {wrong number of arguments to function abs()}}
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do_test func-4.2 {
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catchsql {SELECT abs() FROM t1}
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} {1 {wrong number of arguments to function abs()}}
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do_test func-4.3 {
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catchsql {SELECT abs(b) FROM t1 ORDER BY a}
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} {0 {2 1.2345678901234 2}}
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do_test func-4.4 {
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catchsql {SELECT abs(c) FROM t1 ORDER BY a}
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} {0 {3 12345.6789 5}}
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do_test func-4.4.1 {
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execsql {SELECT abs(a) FROM t2}
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} {1 {} 345 {} 67890}
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do_test func-4.4.2 {
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execsql {SELECT abs(t1) FROM tbl1}
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} {0.0 0.0 0.0 0.0 0.0}
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do_test func-4.5 {
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catchsql {SELECT round(a,b,c) FROM t1}
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} {1 {wrong number of arguments to function round()}}
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do_test func-4.6 {
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catchsql {SELECT round(b,2) FROM t1 ORDER BY b}
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} {0 {-2.00 1.23 2.00}}
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do_test func-4.7 {
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catchsql {SELECT round(b,0) FROM t1 ORDER BY a}
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} {0 {2 1 -2}}
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do_test func-4.8 {
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catchsql {SELECT round(c) FROM t1 ORDER BY a}
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} {0 {3 -12346 -5}}
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do_test func-4.9 {
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catchsql {SELECT round(c,a) FROM t1 ORDER BY a}
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} {0 {3.0 -12345.68 -5.000}}
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do_test func-4.10 {
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catchsql {SELECT 'x' || round(c,a) || 'y' FROM t1 ORDER BY a}
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} {0 {x3.0y x-12345.68y x-5.000y}}
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do_test func-4.11 {
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catchsql {SELECT round() FROM t1 ORDER BY a}
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} {1 {wrong number of arguments to function round()}}
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do_test func-4.12 {
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execsql {SELECT coalesce(round(a,2),'nil') FROM t2}
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} {1.00 nil 345.00 nil 67890.00}
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do_test func-4.13 {
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execsql {SELECT round(t1,2) FROM tbl1}
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} {0.00 0.00 0.00 0.00 0.00}
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# Test the upper() and lower() functions
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#
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do_test func-5.1 {
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execsql {SELECT upper(t1) FROM tbl1}
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} {THIS PROGRAM IS FREE SOFTWARE}
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do_test func-5.2 {
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execsql {SELECT lower(upper(t1)) FROM tbl1}
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} {this program is free software}
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do_test func-5.3 {
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execsql {SELECT upper(a), lower(a) FROM t2}
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} {1 1 {} {} 345 345 {} {} 67890 67890}
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do_test func-5.4 {
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catchsql {SELECT upper(a,5) FROM t2}
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} {1 {wrong number of arguments to function upper()}}
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do_test func-5.5 {
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catchsql {SELECT upper(*) FROM t2}
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} {1 {wrong number of arguments to function upper()}}
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# Test the coalesce() and nullif() functions
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#
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do_test func-6.1 {
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execsql {SELECT coalesce(a,'xyz') FROM t2}
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} {1 xyz 345 xyz 67890}
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do_test func-6.2 {
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execsql {SELECT coalesce(upper(a),'nil') FROM t2}
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} {1 nil 345 nil 67890}
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do_test func-6.3 {
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execsql {SELECT coalesce(nullif(1,1),'nil')}
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} {nil}
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do_test func-6.4 {
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execsql {SELECT coalesce(nullif(1,2),'nil')}
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} {1}
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do_test func-6.5 {
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execsql {SELECT coalesce(nullif(1,NULL),'nil')}
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} {1}
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# Test the last_insert_rowid() function
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#
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do_test func-7.1 {
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execsql {SELECT last_insert_rowid()}
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} [db last_insert_rowid]
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# Tests for aggregate functions and how they handle NULLs.
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#
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do_test func-8.1 {
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ifcapable explain {
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execsql {EXPLAIN SELECT sum(a) FROM t2;}
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}
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execsql {
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SELECT sum(a), count(a), round(avg(a),2), min(a), max(a), count(*) FROM t2;
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}
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} {68236 3 22745.33 1 67890 5}
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do_test func-8.2 {
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execsql {
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SELECT max('z+'||a||'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP') FROM t2;
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}
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} {z+67890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP}
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ifcapable tempdb {
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do_test func-8.3 {
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execsql {
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CREATE TEMP TABLE t3 AS SELECT a FROM t2 ORDER BY a DESC;
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SELECT min('z+'||a||'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP') FROM t3;
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}
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} {z+1abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP}
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} else {
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do_test func-8.3 {
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execsql {
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CREATE TABLE t3 AS SELECT a FROM t2 ORDER BY a DESC;
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SELECT min('z+'||a||'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP') FROM t3;
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}
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} {z+1abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP}
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}
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do_test func-8.4 {
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execsql {
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SELECT max('z+'||a||'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP') FROM t3;
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}
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} {z+67890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP}
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# How do you test the random() function in a meaningful, deterministic way?
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#
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do_test func-9.1 {
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execsql {
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SELECT random() is not null;
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}
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} {1}
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# Use the "sqlite_register_test_function" TCL command which is part of
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# the text fixture in order to verify correct operation of some of
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# the user-defined SQL function APIs that are not used by the built-in
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# functions.
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#
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db close
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set ::DB [sqlite3 db test.db]
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sqlite_register_test_function $::DB testfunc
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do_test func-10.1 {
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catchsql {
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SELECT testfunc(NULL,NULL);
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}
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} {1 {first argument should be one of: int int64 string double null value}}
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do_test func-10.2 {
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execsql {
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SELECT testfunc(
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'int', 1234
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);
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}
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} {1234}
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do_test func-10.3 {
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execsql {
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SELECT testfunc(
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'string', NULL
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);
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}
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} {{}}
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do_test func-10.4 {
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execsql {
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SELECT testfunc(
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'double', 1.234
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);
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}
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} {1.234}
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do_test func-10.5 {
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execsql {
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SELECT testfunc(
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'int', 1234,
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'string', NULL,
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'double', 1.234,
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'int', 1234,
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'string', NULL,
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'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
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'double', 1.234
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);
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}
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} {1.234}
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# Test the built-in sqlite_version(*) SQL function.
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#
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do_test func-11.1 {
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execsql {
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SELECT sqlite_version(*);
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}
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} [sqlite3 -version]
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# Test that destructors passed to sqlite3 by calls to sqlite3_result_text()
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# etc. are called. These tests use two special user-defined functions
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# (implemented in func.c) only available in test builds.
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#
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# Function test_destructor() takes one argument and returns a copy of the
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# text form of that argument. A destructor is associated with the return
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# value. Function test_destructor_count() returns the number of outstanding
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# destructor calls for values returned by test_destructor().
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#
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do_test func-12.1 {
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execsql {
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SELECT test_destructor('hello world'), test_destructor_count();
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}
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} {{hello world} 1}
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do_test func-12.2 {
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execsql {
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SELECT test_destructor_count();
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}
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} {0}
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do_test func-12.3 {
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execsql {
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SELECT test_destructor('hello')||' world', test_destructor_count();
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}
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} {{hello world} 0}
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do_test func-12.4 {
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execsql {
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SELECT test_destructor_count();
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}
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} {0}
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do_test func-12.5 {
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execsql {
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CREATE TABLE t4(x);
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INSERT INTO t4 VALUES(test_destructor('hello'));
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INSERT INTO t4 VALUES(test_destructor('world'));
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SELECT min(test_destructor(x)), max(test_destructor(x)) FROM t4;
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}
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} {hello world}
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do_test func-12.6 {
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execsql {
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SELECT test_destructor_count();
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}
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} {0}
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do_test func-12.7 {
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execsql {
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DROP TABLE t4;
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}
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} {}
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# Test that the auxdata API for scalar functions works. This test uses
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# a special user-defined function only available in test builds,
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# test_auxdata(). Function test_auxdata() takes any number of arguments.
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do_test func-13.1 {
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execsql {
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SELECT test_auxdata('hello world');
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}
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} {0}
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do_test func-13.2 {
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execsql {
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CREATE TABLE t4(a, b);
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INSERT INTO t4 VALUES('abc', 'def');
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INSERT INTO t4 VALUES('ghi', 'jkl');
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}
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} {}
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do_test func-13.3 {
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execsql {
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SELECT test_auxdata('hello world') FROM t4;
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}
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} {0 1}
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do_test func-13.4 {
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execsql {
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SELECT test_auxdata('hello world', 123) FROM t4;
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}
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} {{0 0} {1 1}}
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do_test func-13.5 {
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execsql {
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SELECT test_auxdata('hello world', a) FROM t4;
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}
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} {{0 0} {1 0}}
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do_test func-13.6 {
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execsql {
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SELECT test_auxdata('hello'||'world', a) FROM t4;
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}
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} {{0 0} {1 0}}
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# Test that auxilary data is preserved between calls for SQL variables.
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do_test func-13.7 {
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db close
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set DB [sqlite3 db test.db]
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set sql "SELECT test_auxdata( ? , a ) FROM t4;"
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set STMT [sqlite3_prepare $DB $sql -1 TAIL]
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sqlite3_bind_text $STMT 1 hello -1
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set res [list]
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while { "SQLITE_ROW"==[sqlite3_step $STMT] } {
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lappend res [sqlite3_column_text $STMT 0]
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}
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lappend res [sqlite3_finalize $STMT]
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} {{0 0} {1 0} SQLITE_OK}
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# Make sure that a function with a very long name is rejected
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do_test func-14.1 {
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catch {
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db function [string repeat X 254] {return "hello"}
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}
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} {0}
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do_test func-14.2 {
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catch {
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db function [string repeat X 256] {return "hello"}
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}
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} {1}
|
|
|
|
do_test func-15.1 {
|
|
catchsql {
|
|
select test_error(NULL);
|
|
}
|
|
} {1 {user function error}}
|
|
|
|
# Test the quote function for BLOB and NULL values.
|
|
do_test func-16.1 {
|
|
execsql {
|
|
CREATE TABLE tbl2(a, b);
|
|
}
|
|
set STMT [sqlite3_prepare $::DB "INSERT INTO tbl2 VALUES(?, ?)" -1 TAIL]
|
|
sqlite3_bind_blob $::STMT 1 abc 3
|
|
sqlite3_step $::STMT
|
|
sqlite3_finalize $::STMT
|
|
execsql {
|
|
SELECT quote(a), quote(b) FROM tbl2;
|
|
}
|
|
} {X'616263' NULL}
|
|
|
|
# Correctly handle function error messages that include %. Ticket #1354
|
|
#
|
|
do_test func-17.1 {
|
|
proc testfunc1 args {error "Error %d with %s percents %p"}
|
|
db function testfunc1 ::testfunc1
|
|
catchsql {
|
|
SELECT testfunc1(1,2,3);
|
|
}
|
|
} {1 {Error %d with %s percents %p}}
|
|
|
|
# The SUM function should return integer results when all inputs are integer.
|
|
#
|
|
do_test func-18.1 {
|
|
execsql {
|
|
CREATE TABLE t5(x);
|
|
INSERT INTO t5 VALUES(1);
|
|
INSERT INTO t5 VALUES(-99);
|
|
INSERT INTO t5 VALUES(10000);
|
|
SELECT sum(x) FROM t5;
|
|
}
|
|
} {9902}
|
|
do_test func-18.2 {
|
|
execsql {
|
|
INSERT INTO t5 VALUES(0.0);
|
|
SELECT sum(x) FROM t5;
|
|
}
|
|
} {9902.0}
|
|
|
|
# The sum of nothing is NULL. But the sum of all NULLs is NULL.
|
|
#
|
|
do_test func-18.3 {
|
|
execsql {
|
|
DELETE FROM t5;
|
|
SELECT sum(x) FROM t5;
|
|
}
|
|
} {{}}
|
|
do_test func-18.4 {
|
|
execsql {
|
|
INSERT INTO t5 VALUES(NULL);
|
|
SELECT sum(x) FROM t5
|
|
}
|
|
} {{}}
|
|
do_test func-18.5 {
|
|
execsql {
|
|
INSERT INTO t5 VALUES(NULL);
|
|
SELECT sum(x) FROM t5
|
|
}
|
|
} {{}}
|
|
do_test func-18.6 {
|
|
execsql {
|
|
INSERT INTO t5 VALUES(123);
|
|
SELECT sum(x) FROM t5
|
|
}
|
|
} {123}
|
|
|
|
finish_test
|