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sqlite3

package require sqlite3

proc do_test {name cmd expected} {
  puts -nonewline "$name ..."
  set res [uplevel $cmd]
  if {$res eq $expected} {
    puts Ok
  } else {
    puts Error
    puts "  Got: $res"
    puts "  Expected: $expected"
    exit
  }
}

proc execsql {sql} {
  uplevel [list db eval $sql]
}

proc catchsql {sql} {
  set rc [catch {uplevel [list db eval $sql]} msg]
  list $rc $msg
}

file delete -force test.db test.db.journal
sqlite3 db test.db

# The following tests - genfkey-1.* - test RESTRICT foreign keys.
#
do_test genfkey-1.1 {
  execsql {
    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
    CREATE TABLE t2(e REFERENCES t1, f);
    CREATE TABLE t3(g, h, i, FOREIGN KEY (h, i) REFERENCES t1(b, c));
  }
} {}
do_test genfkey-1.2 {
  execsql [exec ./sqlite3 test.db .genfkey]
} {}
do_test genfkey-1.3 {
  catchsql { INSERT INTO t2 VALUES(1, 2) }
} {1 {constraint failed}}
do_test genfkey-1.4 {
  execsql {
    INSERT INTO t1 VALUES(1, 2, 3);
    INSERT INTO t2 VALUES(1, 2);
  }
} {}
do_test genfkey-1.5 {
  execsql { INSERT INTO t2 VALUES(NULL, 3) }
} {}
do_test genfkey-1.6 {
  catchsql { UPDATE t2 SET e = 5 WHERE e IS NULL }
} {1 {constraint failed}}
do_test genfkey-1.7 {
  execsql { UPDATE t2 SET e = 1 WHERE e IS NULL }
} {}
do_test genfkey-1.8 {
  execsql { UPDATE t2 SET e = NULL WHERE f = 3 }
} {}
do_test genfkey-1.9 {
  catchsql { UPDATE t1 SET a = 10 }
} {1 {constraint failed}}
do_test genfkey-1.9a {
  catchsql { UPDATE t1 SET a = NULL }
} {1 {datatype mismatch}}
do_test genfkey-1.10 {
  catchsql { DELETE FROM t1 }
} {1 {constraint failed}}
do_test genfkey-1.11 {
  execsql { UPDATE t2 SET e = NULL }
} {}
do_test genfkey-1.12 {
  execsql { 
    UPDATE t1 SET a = 10 ;
    DELETE FROM t1;
    DELETE FROM t2;
  }
} {}

do_test genfkey-1.13 {
  execsql {
    INSERT INTO t3 VALUES(1, NULL, NULL);
    INSERT INTO t3 VALUES(1, 2, NULL);
    INSERT INTO t3 VALUES(1, NULL, 3);
  }
} {}
do_test genfkey-1.14 {
  catchsql { INSERT INTO t3 VALUES(3, 1, 4) }
} {1 {constraint failed}}
do_test genfkey-1.15 {
  execsql { 
    INSERT INTO t1 VALUES(1, 1, 4);
    INSERT INTO t3 VALUES(3, 1, 4);
  }
} {}
do_test genfkey-1.16 {
  catchsql { DELETE FROM t1 }
} {1 {constraint failed}}
do_test genfkey-1.17 {
  catchsql { UPDATE t1 SET b = 10}
} {1 {constraint failed}}
do_test genfkey-1.18 {
  execsql { UPDATE t1 SET a = 10}
} {}
do_test genfkey-1.19 {
  catchsql { UPDATE t3 SET h = 'hello' WHERE i = 3}
} {1 {constraint failed}}

do_test genfkey-1.X {
  execsql {
    DROP TABLE t1;
    DROP TABLE t2;
    DROP TABLE t3;
  }
} {}

# The following tests - genfkey-2.* - test CASCADE foreign keys.
#
do_test genfkey-2.1 {
  execsql {
    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
    CREATE TABLE t2(e REFERENCES t1 ON UPDATE CASCADE ON DELETE CASCADE, f);
    CREATE TABLE t3(g, h, i, 
        FOREIGN KEY (h, i) 
        REFERENCES t1(b, c) ON UPDATE CASCADE ON DELETE CASCADE
    );
  }
} {}
do_test genfkey-2.2 {
  execsql [exec ./sqlite3 test.db .genfkey]
} {}
do_test genfkey-2.3 {
  execsql {
    INSERT INTO t1 VALUES(1, 2, 3);
    INSERT INTO t1 VALUES(4, 5, 6);
    INSERT INTO t2 VALUES(1, 'one');
    INSERT INTO t2 VALUES(4, 'four');
  }
} {}
do_test genfkey-2.4 {
  execsql {
    UPDATE t1 SET a = 2 WHERE a = 1;
    SELECT * FROM t2;
  }
} {2 one 4 four}
do_test genfkey-2.5 {
  execsql {
    DELETE FROM t1 WHERE a = 4;
    SELECT * FROM t2;
  }
} {2 one}
do_test genfkey-2.6 {
  execsql {
    INSERT INTO t3 VALUES('hello', 2, 3);
    UPDATE t1 SET c = 2;
    SELECT * FROM t3;
  }
} {hello 2 2}
do_test genfkey-2.7 {
  execsql {
    DELETE FROM t1;
    SELECT * FROM t3;
  }
} {}
do_test genfkey-2.X {
  execsql {
    DROP TABLE t1;
    DROP TABLE t2;
    DROP TABLE t3;
  }
} {}


# The following tests - genfkey-3.* - test SET NULL foreign keys.
#
do_test genfkey-3.1 {
  execsql {
    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(c, b));
    CREATE TABLE t2(e REFERENCES t1 ON UPDATE SET NULL ON DELETE SET NULL, f);
    CREATE TABLE t3(g, h, i, 
        FOREIGN KEY (h, i) 
        REFERENCES t1(b, c) ON UPDATE SET NULL ON DELETE SET NULL
    );
  }
} {}
do_test genfkey-3.2 {
  execsql [exec ./sqlite3 test.db .genfkey]
} {}
do_test genfkey-3.3 {
  execsql {
    INSERT INTO t1 VALUES(1, 2, 3);
    INSERT INTO t1 VALUES(4, 5, 6);
    INSERT INTO t2 VALUES(1, 'one');
    INSERT INTO t2 VALUES(4, 'four');
  }
} {}
do_test genfkey-3.4 {
  execsql {
    UPDATE t1 SET a = 2 WHERE a = 1;
    SELECT * FROM t2;
  }
} {{} one 4 four}
do_test genfkey-3.5 {
  execsql {
    DELETE FROM t1 WHERE a = 4;
    SELECT * FROM t2;
  }
} {{} one {} four}
do_test genfkey-3.6 {
  execsql {
    INSERT INTO t3 VALUES('hello', 2, 3);
    UPDATE t1 SET c = 2;
    SELECT * FROM t3;
  }
} {hello {} {}}
do_test genfkey-2.7 {
  execsql {
    UPDATE t3 SET h = 2, i = 2;
    DELETE FROM t1;
    SELECT * FROM t3;
  }
} {hello {} {}}
do_test genfkey-3.X {
  execsql {
    DROP TABLE t1;
    DROP TABLE t2;
    DROP TABLE t3;
  }
} {}

# The following tests - genfkey-4.* - test that errors in the schema
# are detected correctly.
#
do_test genfkey-4.1 {
  execsql {
    CREATE TABLE t1(a REFERENCES nosuchtable, b);
    CREATE TABLE t2(a REFERENCES t1, b);

    CREATE TABLE t3(a, b, c, PRIMARY KEY(a, b));
    CREATE TABLE t4(a, b, c, FOREIGN KEY(c, b) REFERENCES t3);

    CREATE TABLE t5(a REFERENCES t4(d), b, c);
    CREATE TABLE t6(a REFERENCES t4(a), b, c);
    CREATE TABLE t7(a REFERENCES t3(a), b, c);
    CREATE TABLE t8(a REFERENCES nosuchtable(a), b, c);
  }
} {}

do_test genfkey-4.X {
  set rc [catch {exec ./sqlite3 test.db .genfkey} msg]
  list $rc $msg
} "1 {[string trim {
Error in table t5: foreign key columns do not exist
Error in table t8: foreign key columns do not exist
Error in table t4: implicit mapping to composite primary key
Error in table t1: implicit mapping to non-existant primary key
Error in table t2: implicit mapping to non-existant primary key
Error in table t6: foreign key is not unique
Error in table t7: foreign key is not unique
}]}"

# Test that ticket #3800 has been resolved.
#
do_test genfkey-5.1 {
  execsql {
    DROP TABLE t1; DROP TABLE t2; DROP TABLE t3;
    DROP TABLE t4; DROP TABLE t5; DROP TABLE t6;
    DROP TABLE t7; DROP TABLE t8;
  }
} {}
do_test genfkey-5.2 {
  execsql {
    CREATE TABLE "t.3" (c1 PRIMARY KEY);
    CREATE TABLE t13 (c1, foreign key(c1) references "t.3"(c1));
  }
} {}
do_test genfkey-5.3 {
  set rc [catch {exec ./sqlite3 test.db .genfkey} msg]
} {0}
do_test genfkey-5.4 {
  db eval $msg
} {}
do_test genfkey-5.5 {
  catchsql { INSERT INTO t13 VALUES(1) }
} {1 {constraint failed}}
do_test genfkey-5.5 {
  catchsql { 
    INSERT INTO "t.3" VALUES(1);
    INSERT INTO t13 VALUES(1);
  }
} {0 {}}

# Test also column names that require quoting.
do_test genfkey-6.1 {
  execsql {
    DROP TABLE "t.3";
    DROP TABLE t13;
    CREATE TABLE p(
      "a.1 first", "b.2 second", 
      UNIQUE("a.1 first", "b.2 second")
    );
    CREATE TABLE c(
      "c.1 I", "d.2 II", 
        FOREIGN KEY("c.1 I", "d.2 II") 
        REFERENCES p("a.1 first", "b.2 second")
        ON UPDATE CASCADE ON DELETE CASCADE
    );
  }
} {}
do_test genfkey-6.2 {
  set rc [catch {exec ./sqlite3 test.db .genfkey} msg]
} {0}
do_test genfkey-6.3 {
  execsql $msg
  execsql {
    INSERT INTO p VALUES('A', 'B');
    INSERT INTO p VALUES('C', 'D');
    INSERT INTO c VALUES('A', 'B');
    INSERT INTO c VALUES('C', 'D');
    UPDATE p SET "a.1 first" = 'X' WHERE rowid = 1;
    DELETE FROM p WHERE rowid = 2;
  }
  execsql { SELECT * FROM c }
} {X B}

do_test genfkey-6.4 {
  execsql {
    DROP TABLE p;
    DROP TABLE c;
    CREATE TABLE parent("a.1", PRIMARY KEY("a.1"));
    CREATE TABLE child("b.2", FOREIGN KEY("b.2") REFERENCES parent("a.1"));
  }
  set rc [catch {exec ./sqlite3 test.db .genfkey} msg]
} {0}
do_test genfkey-6.5 {
  execsql $msg
  execsql {
    INSERT INTO parent VALUES(1);
    INSERT INTO child VALUES(1);
  }
  catchsql { UPDATE parent SET "a.1"=0 }
} {1 {constraint failed}}
do_test genfkey-6.6 {
  catchsql { UPDATE child SET "b.2"=7 }
} {1 {constraint failed}}
do_test genfkey-6.7 {
  execsql {
    SELECT * FROM parent;
    SELECT * FROM child;
  }
} {1 1}