e618dd9b5d
tests. FossilOrigin-Name: 3f2705b93368f7b0dfd2e03387c3d0b55eddb04940ec83e226e420d8ab10c77f
88 lines
2.0 KiB
Plaintext
88 lines
2.0 KiB
Plaintext
# 2018 May 8
|
|
#
|
|
# The author disclaims copyright to this source code. In place of
|
|
# a legal notice, here is a blessing:
|
|
#
|
|
# May you do good and not evil.
|
|
# May you find forgiveness for yourself and forgive others.
|
|
# May you share freely, never taking more than you give.
|
|
#
|
|
#***********************************************************************
|
|
# This file implements regression tests for SQLite library. Specifically,
|
|
# it tests the sqlite3_create_window_function() API.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
set testprefix window5
|
|
|
|
ifcapable !windowfunc {
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
proc m_step {ctx val} {
|
|
lappend ctx $val
|
|
return $ctx
|
|
}
|
|
proc m_value {ctx} {
|
|
set lSort [lsort $ctx]
|
|
|
|
set nVal [llength $lSort]
|
|
set n [expr $nVal/2]
|
|
|
|
if {($nVal % 2)==0 && $nVal>0} {
|
|
set a [lindex $lSort $n]
|
|
set b [lindex $lSort $n-1]
|
|
if {($a+$b) % 2} {
|
|
set ret [expr ($a+$b)/2.0]
|
|
} else {
|
|
set ret [expr ($a+$b)/2]
|
|
}
|
|
} else {
|
|
set ret [lindex $lSort $n]
|
|
}
|
|
return $ret
|
|
}
|
|
proc m_inverse {ctx val} {
|
|
set ctx [lrange $ctx 1 end]
|
|
return $ctx
|
|
}
|
|
proc w_value {ctx} {
|
|
lsort $ctx
|
|
}
|
|
|
|
sqlite3_create_window_function db median m_step m_value m_value m_inverse
|
|
sqlite3_create_window_function db win m_step w_value w_value m_inverse
|
|
|
|
do_test 0.0 {
|
|
test_create_window_function_misuse db
|
|
} {}
|
|
|
|
do_execsql_test 1.0 {
|
|
CREATE TABLE t1(a, b);
|
|
INSERT INTO t1 VALUES(4, 'a');
|
|
INSERT INTO t1 VALUES(6, 'b');
|
|
INSERT INTO t1 VALUES(1, 'c');
|
|
INSERT INTO t1 VALUES(5, 'd');
|
|
INSERT INTO t1 VALUES(2, 'e');
|
|
INSERT INTO t1 VALUES(3, 'f');
|
|
}
|
|
|
|
do_execsql_test 1.1 {
|
|
SELECT win(a) OVER (ORDER BY b), median(a) OVER (ORDER BY b) FROM t1;
|
|
} {4 4 {4 6} 5 {1 4 6} 4 {1 4 5 6} 4.5 {1 2 4 5 6} 4 {1 2 3 4 5 6} 3.5}
|
|
|
|
test_create_sumint db
|
|
do_execsql_test 2.0 {
|
|
SELECT sumint(a) OVER (ORDER BY rowid) FROM t1 ORDER BY rowid;
|
|
} {4 10 11 16 18 21}
|
|
|
|
do_execsql_test 2.1 {
|
|
SELECT sumint(a) OVER (ORDER BY rowid ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) FROM t1 ORDER BY rowid;
|
|
} {10 11 12 8 10 5}
|
|
|
|
|
|
finish_test
|
|
|