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210 lines
5.1 KiB
Plaintext
210 lines
5.1 KiB
Plaintext
# 2013-05-28
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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 percentile.c extension
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Basic test of the percentile() function.
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#
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do_test percentile-1.0 {
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load_static_extension db percentile
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execsql {
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CREATE TABLE t1(x);
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INSERT INTO t1 VALUES(1),(4),(6),(7),(8),(9),(11),(11),(11);
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}
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execsql {SELECT percentile(x,0) FROM t1}
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} {1.0}
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foreach {in out} {
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100 11.0
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50 8.0
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12.5 4.0
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15 4.4
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20 5.2
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80 11.0
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89 11.0
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} {
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do_test percentile-1.1.$in {
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execsql {SELECT percentile(x,$in) FROM t1}
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} $out
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}
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# Add some NULL values.
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#
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do_test percentile-1.2 {
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execsql {INSERT INTO t1 VALUES(NULL),(NULL);}
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} {}
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foreach {in out} {
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100 11.0
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50 8.0
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12.5 4.0
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15 4.4
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20 5.2
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80 11.0
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89 11.0
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} {
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do_test percentile-1.3.$in {
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execsql {SELECT percentile(x,$in) FROM t1}
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} $out
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}
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# The second argument to percentile can change some, but not much.
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#
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do_test percentile-1.4 {
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catchsql {SELECT round(percentile(x, 15+0.000001*rowid),1) FROM t1}
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} {0 4.4}
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do_test percentile-1.5 {
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catchsql {SELECT round(percentile(x, 15+0.1*rowid),1) FROM t1}
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} {1 {2nd argument to percentile() is not the same for all input rows}}
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# Input values in a random order
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#
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do_test percentile-1.6 {
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execsql {
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CREATE TABLE t2(x);
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INSERT INTO t2 SELECT x+0.0 FROM t1 ORDER BY random();
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}
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} {}
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foreach {in out} {
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100 11.0
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50 8.0
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12.5 4.0
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15 4.4
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20 5.2
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80 11.0
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89 11.0
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} {
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do_test percentile-1.7.$in {
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execsql {SELECT percentile(x,$in) FROM t2}
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} $out
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}
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# Wrong number of arguments
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#
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do_test percentile-1.8 {
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catchsql {SELECT percentile(x,0,1) FROM t1}
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} {1 {wrong number of arguments to function percentile()}}
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do_test percentile-1.9 {
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catchsql {SELECT percentile(x) FROM t1}
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} {1 {wrong number of arguments to function percentile()}}
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# Second argument must be numeric
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#
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do_test percentile-1.10 {
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catchsql {SELECT percentile(x,null) FROM t1}
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} {1 {2nd argument to percentile() is not a number between 0.0 and 100.0}}
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do_test percentile-1.11 {
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catchsql {SELECT percentile(x,'fifty') FROM t1}
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} {1 {2nd argument to percentile() is not a number between 0.0 and 100.0}}
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do_test percentile-1.12 {
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catchsql {SELECT percentile(x,x'3530') FROM t1}
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} {1 {2nd argument to percentile() is not a number between 0.0 and 100.0}}
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# Second argument is out of range
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#
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do_test percentile-1.13 {
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catchsql {SELECT percentile(x,-0.0000001) FROM t1}
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} {1 {2nd argument to percentile() is not a number between 0.0 and 100.0}}
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do_test percentile-1.14 {
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catchsql {SELECT percentile(x,100.0000001) FROM t1}
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} {1 {2nd argument to percentile() is not a number between 0.0 and 100.0}}
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# First argument is not NULL and is not NUMERIC
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#
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do_test percentile-1.15 {
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catchsql {
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BEGIN;
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UPDATE t1 SET x='50' WHERE x IS NULL;
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SELECT percentile(x, 50) FROM t1;
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}
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} {1 {1st argument to percentile() is not numeric}}
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do_test percentile-1.16 {
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catchsql {
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ROLLBACK;
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BEGIN;
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UPDATE t1 SET x=x'3530' WHERE x IS NULL;
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SELECT percentile(x, 50) FROM t1;
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}
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} {1 {1st argument to percentile() is not numeric}}
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do_test percentile-1.17 {
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catchsql {
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ROLLBACK;
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SELECT percentile(x, 50) FROM t1;
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}
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} {0 8.0}
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# No non-NULL entries.
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#
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do_test percentile-1.18 {
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execsql {
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UPDATE t1 SET x=NULL;
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SELECT ifnull(percentile(x, 50),'NULL') FROM t1
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}
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} {NULL}
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# Exactly one non-NULL entry
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#
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do_test percentile-1.19 {
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execsql {
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UPDATE t1 SET x=12345 WHERE rowid=5;
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SELECT percentile(x, 0), percentile(x, 50), percentile(x,100) FROM t1
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}
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} {12345.0 12345.0 12345.0}
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# Infinity as an input
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#
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do_test percentile-1.20 {
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catchsql {
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DELETE FROM t1;
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INSERT INTO t1 SELECT x+0.0 FROM t2;
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UPDATE t1 SET x=1.0e300*1.0e300 WHERE rowid=5;
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SELECT percentile(x,50) from t1;
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}
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} {1 {Inf input to percentile()}}
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do_test percentile-1.21 {
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catchsql {
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UPDATE t1 SET x=-1.0e300*1.0e300 WHERE rowid=5;
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SELECT percentile(x,50) from t1;
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}
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} {1 {Inf input to percentile()}}
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# Million-row Inputs
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#
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ifcapable vtab {
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do_test percentile-2.0 {
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load_static_extension db wholenumber
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execsql {
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CREATE VIRTUAL TABLE nums USING wholenumber;
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CREATE TABLE t3(x);
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INSERT INTO t3 SELECT value-1 FROM nums WHERE value BETWEEN 1 AND 500000;
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INSERT INTO t3 SELECT value*10 FROM nums
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WHERE value BETWEEN 500000 AND 999999;
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SELECT count(*) FROM t3;
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}
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} {1000000}
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foreach {in out} {
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0 0.0
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100 9999990.0
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50 2749999.5
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10 99999.9
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} {
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do_test percentile-2.1.$in {
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execsql {
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SELECT round(percentile(x, $in),1) from t3;
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}
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} $out
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}
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}
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finish_test
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