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Overview
Comment:Add tests that demonstrate that PRAGMA defer_foreign_keys will reset to off at the conclusion of the next transaction.
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SHA1: 67e28a11de97e97889f0c0f41c05605721c605c1
User & Date: drh 2013-10-12 13:16:15.885
Context
2013-10-12
15:12
Fix handling of "DROP TABLE" commands when "PRAGMA defer_foreign_keys=1" is set. (check-in: 27001356ed user: dan tags: trunk)
13:16
Add tests that demonstrate that PRAGMA defer_foreign_keys will reset to off at the conclusion of the next transaction. (check-in: 67e28a11de user: drh tags: trunk)
02:33
Fix harmless compiler warning. (check-in: 4b130f88fb user: mistachkin tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to test/fkey6.test.
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    BEGIN;
    DELETE FROM t1 WHERE x=3;
  }
} {}
do_test fkey6-1.9 {
  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
} {0 1 0}
do_test fkey6-1.10 {




  execsql {

    ROLLBACK;
    PRAGMA defer_foreign_keys=OFF;
    BEGIN;





  }

  catchsql {DELETE FROM t1 WHERE x=3}
} {1 {foreign key constraint failed}}
db eval {ROLLBACK}

do_test fkey6-1.20 {
  execsql {
    BEGIN;








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    BEGIN;
    DELETE FROM t1 WHERE x=3;
  }
} {}
do_test fkey6-1.9 {
  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
} {0 1 0}

# EVIDENCE-OF: R-21752-26913 The defer_foreign_keys pragma is
# automatically switched off at each COMMIT or ROLLBACK. Hence, the
# defer_foreign_keys pragma must be separately enabled for each
# transaction.
do_execsql_test fkey6-1.10.1 {
  PRAGMA defer_foreign_keys;
  ROLLBACK;
  PRAGMA defer_foreign_keys;
  BEGIN;
  PRAGMA defer_foreign_keys=ON;
  PRAGMA defer_foreign_keys;
  COMMIT;
  PRAGMA defer_foreign_keys;
  BEGIN;
} {1 0 1 0}
do_test fkey6-1.10.2 {
  catchsql {DELETE FROM t1 WHERE x=3}
} {1 {foreign key constraint failed}}
db eval {ROLLBACK}

do_test fkey6-1.20 {
  execsql {
    BEGIN;
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