# 2001 September 15 # # 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. # # This file implements tests for foreign keys. # set testdir [file dirname $argv0] source $testdir/tester.tcl ifcapable {!foreignkey} { finish_test return } # Create a table and some data to work with. # do_test fkey1-1.0 { execsql { CREATE TABLE t1( a INTEGER PRIMARY KEY, b INTEGER REFERENCES t1 ON DELETE CASCADE REFERENCES t2, c TEXT, FOREIGN KEY (b,c) REFERENCES t2(x,y) ON UPDATE CASCADE ); } } {} do_test fkey1-1.1 { execsql { CREATE TABLE t2( x INTEGER PRIMARY KEY, y TEXT ); } } {} do_test fkey1-1.2 { execsql { CREATE TABLE t3( a INTEGER REFERENCES t2, b INTEGER REFERENCES t1, FOREIGN KEY (a,b) REFERENCES t2(x,y) ); } } {} do_test fkey1-2.1 { execsql { CREATE TABLE t4(a integer primary key); CREATE TABLE t5(x references t4); CREATE TABLE t6(x references t4); CREATE TABLE t7(x references t4); CREATE TABLE t8(x references t4); CREATE TABLE t9(x references t4); CREATE TABLE t10(x references t4); DROP TABLE t7; DROP TABLE t9; DROP TABLE t5; DROP TABLE t8; DROP TABLE t6; DROP TABLE t10; } } {} do_test fkey1-3.1 { execsql { CREATE TABLE t5(a PRIMARY KEY, b, c); CREATE TABLE t6( d REFERENCES t5, e REFERENCES t5(c) ); PRAGMA foreign_key_list(t6); } } [concat \ {0 0 t5 e c {NO ACTION} {NO ACTION} NONE} \ {1 0 t5 d {} {NO ACTION} {NO ACTION} NONE} \ ] do_test fkey1-3.2 { execsql { CREATE TABLE t7(d, e, f, FOREIGN KEY (d, e) REFERENCES t5(a, b) ); PRAGMA foreign_key_list(t7); } } [concat \ {0 0 t5 d a {NO ACTION} {NO ACTION} NONE} \ {0 1 t5 e b {NO ACTION} {NO ACTION} NONE} \ ] do_test fkey1-3.3 { execsql { CREATE TABLE t8(d, e, f, FOREIGN KEY (d, e) REFERENCES t5 ON DELETE CASCADE ON UPDATE SET NULL ); PRAGMA foreign_key_list(t8); } } [concat \ {0 0 t5 d {} {SET NULL} CASCADE NONE} \ {0 1 t5 e {} {SET NULL} CASCADE NONE} \ ] do_test fkey1-3.4 { execsql { CREATE TABLE t9(d, e, f, FOREIGN KEY (d, e) REFERENCES t5 ON DELETE CASCADE ON UPDATE SET DEFAULT ); PRAGMA foreign_key_list(t9); } } [concat \ {0 0 t5 d {} {SET DEFAULT} CASCADE NONE} \ {0 1 t5 e {} {SET DEFAULT} CASCADE NONE} \ ] do_test fkey1-3.5 { sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0 } {0 0 0} # Stress the dequoting logic. The first test is not so bad. do_execsql_test fkey1-4.0 { PRAGMA foreign_keys=ON; CREATE TABLE "xx1"("xx2" TEXT PRIMARY KEY, "xx3" TEXT); INSERT INTO "xx1"("xx2","xx3") VALUES('abc','def'); CREATE TABLE "xx4"("xx5" TEXT REFERENCES "xx1" ON DELETE CASCADE); INSERT INTO "xx4"("xx5") VALUES('abc'); INSERT INTO "xx1"("xx2","xx3") VALUES('uvw','xyz'); SELECT 1, "xx5" FROM "xx4"; DELETE FROM "xx1"; SELECT 2, "xx5" FROM "xx4"; } {1 abc} # This case is identical to the previous except the "xx" in each name # is changed to a single escaped double-quote character. do_execsql_test fkey1-4.1 { PRAGMA foreign_keys=ON; CREATE TABLE """1"("""2" TEXT PRIMARY KEY, """3" TEXT); INSERT INTO """1"("""2","""3") VALUES('abc','def'); CREATE TABLE """4"("""5" TEXT REFERENCES """1" ON DELETE CASCADE); INSERT INTO """4"("""5") VALUES('abc'); INSERT INTO """1"("""2","""3") VALUES('uvw','xyz'); SELECT 1, """5" FROM """4"; DELETE FROM """1"; SELECT 2, """5" FROM """4"; } {1 abc} do_execsql_test fkey1-4.2 { PRAGMA table_info="""1"; } {0 {"2} TEXT 0 {} 1 1 {"3} TEXT 0 {} 0} #------------------------------------------------------------------------- # do_execsql_test fkey1-5.1 { CREATE TABLE t11( x INTEGER PRIMARY KEY, parent REFERENCES t11 ON DELETE CASCADE ); INSERT INTO t11 VALUES (1, NULL), (2, 1), (3, 2); } {} # The REPLACE part of this statement deletes the row (2, 1). Then the # DELETE CASCADE caused by deleting that row removes the (3, 2) row. Which # would have been the parent of the new row being inserted. Causing an # FK violation. # do_catchsql_test fkey1-5.2 { INSERT OR REPLACE INTO t11 VALUES (2, 3); } {1 {FOREIGN KEY constraint failed}} # A similar test to the above. do_execsql_test fkey1-5.3 { CREATE TABLE Foo ( Id INTEGER PRIMARY KEY, ParentId INTEGER REFERENCES Foo(Id) ON DELETE CASCADE, C1 ); INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (1, null, 'A'); INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (2, 1, 'A-2-1'); INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (3, 2, 'A-3-2'); INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (4, 3, 'A-4-3'); } do_catchsql_test fkey1-5.4 { INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (2, 3, 'A-2-3'); } {1 {FOREIGN KEY constraint failed}} finish_test