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Diffstat (limited to 'test/unique.test')
| -rw-r--r-- | test/unique.test | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/test/unique.test b/test/unique.test new file mode 100644 index 0000000..56c49ee --- /dev/null +++ b/test/unique.test @@ -0,0 +1,253 @@ +# 2001 September 27 +# +# 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. The +# focus of this file is testing the CREATE UNIQUE INDEX statement, +# and primary keys, and the UNIQUE constraint on table columns +# +# $Id: unique.test,v 1.9 2009/05/02 15:46:47 drh Exp $ + +set testdir [file dirname $argv0] +source $testdir/tester.tcl + +# Try to create a table with two primary keys. +# (This is allowed in SQLite even that it is not valid SQL) +# +do_test unique-1.1 { + catchsql { + CREATE TABLE t1( + a int PRIMARY KEY, + b int PRIMARY KEY, + c text + ); + } +} {1 {table "t1" has more than one primary key}} +do_test unique-1.1b { + catchsql { + CREATE TABLE t1( + a int PRIMARY KEY, + b int UNIQUE, + c text + ); + } +} {0 {}} +do_test unique-1.2 { + catchsql { + INSERT INTO t1(a,b,c) VALUES(1,2,3) + } +} {0 {}} +do_test unique-1.3 { + catchsql { + INSERT INTO t1(a,b,c) VALUES(1,3,4) + } +} {1 {column a is not unique}} +do_test unique-1.4 { + execsql { + SELECT * FROM t1 ORDER BY a; + } +} {1 2 3} +do_test unique-1.5 { + catchsql { + INSERT INTO t1(a,b,c) VALUES(3,2,4) + } +} {1 {column b is not unique}} +do_test unique-1.6 { + execsql { + SELECT * FROM t1 ORDER BY a; + } +} {1 2 3} +do_test unique-1.7 { + catchsql { + INSERT INTO t1(a,b,c) VALUES(3,4,5) + } +} {0 {}} +do_test unique-1.8 { + execsql { + SELECT * FROM t1 ORDER BY a; + } +} {1 2 3 3 4 5} +integrity_check unique-1.9 + +do_test unique-2.0 { + execsql { + DROP TABLE t1; + CREATE TABLE t2(a int, b int); + INSERT INTO t2(a,b) VALUES(1,2); + INSERT INTO t2(a,b) VALUES(3,4); + SELECT * FROM t2 ORDER BY a; + } +} {1 2 3 4} +do_test unique-2.1 { + catchsql { + CREATE UNIQUE INDEX i2 ON t2(a) + } +} {0 {}} +do_test unique-2.2 { + catchsql { + SELECT * FROM t2 ORDER BY a + } +} {0 {1 2 3 4}} +do_test unique-2.3 { + catchsql { + INSERT INTO t2 VALUES(1,5); + } +} {1 {column a is not unique}} +do_test unique-2.4 { + catchsql { + SELECT * FROM t2 ORDER BY a + } +} {0 {1 2 3 4}} +do_test unique-2.5 { + catchsql { + DROP INDEX i2; + SELECT * FROM t2 ORDER BY a; + } +} {0 {1 2 3 4}} +do_test unique-2.6 { + catchsql { + INSERT INTO t2 VALUES(1,5) + } +} {0 {}} +do_test unique-2.7 { + catchsql { + SELECT * FROM t2 ORDER BY a, b; + } +} {0 {1 2 1 5 3 4}} +do_test unique-2.8 { + catchsql { + CREATE UNIQUE INDEX i2 ON t2(a); + } +} {1 {indexed columns are not unique}} +do_test unique-2.9 { + catchsql { + CREATE INDEX i2 ON t2(a); + } +} {0 {}} +integrity_check unique-2.10 + +# Test the UNIQUE keyword as used on two or more fields. +# +do_test unique-3.1 { + catchsql { + CREATE TABLE t3( + a int, + b int, + c int, + d int, + unique(a,c,d) + ); + } +} {0 {}} +do_test unique-3.2 { + catchsql { + INSERT INTO t3(a,b,c,d) VALUES(1,2,3,4); + SELECT * FROM t3 ORDER BY a,b,c,d; + } +} {0 {1 2 3 4}} +do_test unique-3.3 { + catchsql { + INSERT INTO t3(a,b,c,d) VALUES(1,2,3,5); + SELECT * FROM t3 ORDER BY a,b,c,d; + } +} {0 {1 2 3 4 1 2 3 5}} +do_test unique-3.4 { + catchsql { + INSERT INTO t3(a,b,c,d) VALUES(1,4,3,5); + SELECT * FROM t3 ORDER BY a,b,c,d; + } +} {1 {columns a, c, d are not unique}} +integrity_check unique-3.5 + +# Make sure NULLs are distinct as far as the UNIQUE tests are +# concerned. +# +do_test unique-4.1 { + execsql { + CREATE TABLE t4(a UNIQUE, b, c, UNIQUE(b,c)); + INSERT INTO t4 VALUES(1,2,3); + INSERT INTO t4 VALUES(NULL, 2, NULL); + SELECT * FROM t4; + } +} {1 2 3 {} 2 {}} +do_test unique-4.2 { + catchsql { + INSERT INTO t4 VALUES(NULL, 3, 4); + } +} {0 {}} +do_test unique-4.3 { + execsql { + SELECT * FROM t4 + } +} {1 2 3 {} 2 {} {} 3 4} +do_test unique-4.4 { + catchsql { + INSERT INTO t4 VALUES(2, 2, NULL); + } +} {0 {}} +do_test unique-4.5 { + execsql { + SELECT * FROM t4 + } +} {1 2 3 {} 2 {} {} 3 4 2 2 {}} + +# Ticket #1301. Any NULL value in a set of unique columns should +# cause the rows to be distinct. +# +do_test unique-4.6 { + catchsql { + INSERT INTO t4 VALUES(NULL, 2, NULL); + } +} {0 {}} +do_test unique-4.7 { + execsql {SELECT * FROM t4} +} {1 2 3 {} 2 {} {} 3 4 2 2 {} {} 2 {}} +do_test unique-4.8 { + catchsql {CREATE UNIQUE INDEX i4a ON t4(a,b)} +} {0 {}} +do_test unique-4.9 { + catchsql {CREATE UNIQUE INDEX i4b ON t4(a,b,c)} +} {0 {}} +do_test unique-4.10 { + catchsql {CREATE UNIQUE INDEX i4c ON t4(b)} +} {1 {indexed columns are not unique}} +integrity_check unique-4.99 + +# Test the error message generation logic. In particular, make sure we +# do not overflow the static buffer used to generate the error message. +# +do_test unique-5.1 { + execsql { + CREATE TABLE t5( + first_column_with_long_name, + second_column_with_long_name, + third_column_with_long_name, + fourth_column_with_long_name, + fifth_column_with_long_name, + sixth_column_with_long_name, + UNIQUE( + first_column_with_long_name, + second_column_with_long_name, + third_column_with_long_name, + fourth_column_with_long_name, + fifth_column_with_long_name, + sixth_column_with_long_name + ) + ); + INSERT INTO t5 VALUES(1,2,3,4,5,6); + SELECT * FROM t5; + } +} {1 2 3 4 5 6} +do_test unique-5.2 { + catchsql { + INSERT INTO t5 VALUES(1,2,3,4,5,6); + } +} {1 {columns first_column_with_long_name, second_column_with_long_name, third_column_with_long_name, fourth_column_with_long_name, fifth_column_with_long_name, sixth_column_with_long_name are not unique}} + +finish_test |