[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/fkey7.test

+# 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 $testdir/tester.tcl
+set testprefix fkey7
+
+ifcapable {!foreignkey} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  PRAGMA foreign_keys = 1;
+
+  CREATE TABLE s1(a PRIMARY KEY, b);
+  CREATE TABLE par(a, b REFERENCES s1, c UNIQUE, PRIMARY KEY(a));
+
+  CREATE TABLE c1(a, b REFERENCES par);
+  CREATE TABLE c2(a, b REFERENCES par);
+  CREATE TABLE c3(a, b REFERENCES par(c));
+}
+
+proc auth {op tbl args} {
+  if {$op == "SQLITE_READ"} { set ::tbls($tbl) 1 }
+  return "SQLITE_OK"
+}
+db auth auth
+db cache size 0
+proc do_tblsread_test {tn sql tbllist} {
+  array unset ::tbls
+  uplevel [list execsql $sql]
+  uplevel [list do_test $tn {lsort [array names ::tbls]} $tbllist]
+}
+
+do_tblsread_test 1.2 { UPDATE par SET b=? WHERE a=? } {par s1}
+do_tblsread_test 1.3 { UPDATE par SET a=? WHERE b=? } {c1 c2 par}
+do_tblsread_test 1.4 { UPDATE par SET c=? WHERE b=? } {c3 par}
+do_tblsread_test 1.5 { UPDATE par SET a=?,b=?,c=? WHERE b=? } {c1 c2 c3 par s1}
+
+
+finish_test