Improvements to the SQLITE_MISUSE detection logic. Also added test cases

for this logic, including the new test file "misuse.test". (CVS 559)

FossilOrigin-Name: f42907ce457e012592f8c043dc6c915e87258b35

test/misuse.test

@@ -0,0 +1,161 @@
+# 2002 May 10
+#
+# 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 the SQLITE_MISUSE detection logic.
+# This test file leaks memory and file descriptors.
+#
+# $Id: misuse.test,v 1.1 2002/05/10 13:14:08 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Make sure the test logic works
+#
+do_test misuse-1.1 {
+  db close
+  set ::DB [sqlite db test.db]
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+  }
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {0 {a b 1 2}}
+do_test misuse-1.2 {
+  sqlite_exec_printf $::DB {SELECT x_coalesce(NULL,a) AS 'xyz' FROM t1} {}
+} {1 {no such function: x_coalesce}}
+do_test misuse-1.3 {
+  sqlite_create_function $::DB
+  sqlite_exec_printf $::DB {SELECT x_coalesce(NULL,a) AS 'xyz' FROM t1} {}
+} {0 {xyz 1}}
+
+# Use the x_sqlite_exec() SQL function to simulate the effect of two
+# threads trying to use the same database at the same time.
+#
+do_test misuse-1.4 {
+  sqlite_exec_printf $::DB {
+     SELECT x_sqlite_exec('SELECT * FROM t1');
+  } {}
+} {21 {library routine called out of sequence}}
+do_test misuse-1.5 {
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {21 {library routine called out of sequence}}
+do_test misuse-1.6 {
+  catchsql {
+    SELECT * FROM t1
+  }
+} {1 {library routine called out of sequence}}
+
+# Attempt to register a new SQL function while an sqlite_exec() is active.
+#
+do_test misuse-2.1 {
+  db close
+  set ::DB [sqlite db test.db]
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2}
+do_test misuse-2.2 {
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {0 {a b 1 2}}
+do_test misuse-2.3 {
+  set v [catch {
+    db eval {SELECT * FROM t1} {} {
+      sqlite_create_function $::DB
+    }
+  } msg]
+  lappend v $msg
+} {1 {library routine called out of sequence}}
+do_test misuse-2.4 {
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {21 {library routine called out of sequence}}
+do_test misuse-2.5 {
+  catchsql {
+    SELECT * FROM t1
+  }
+} {1 {library routine called out of sequence}}
+
+# Attempt to register a new SQL aggregate while an sqlite_exec() is active.
+#
+do_test misuse-3.1 {
+  db close
+  set ::DB [sqlite db test.db]
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2}
+do_test misuse-3.2 {
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {0 {a b 1 2}}
+do_test misuse-3.3 {
+  set v [catch {
+    db eval {SELECT * FROM t1} {} {
+      sqlite_create_aggregate $::DB
+    }
+  } msg]
+  lappend v $msg
+} {1 {library routine called out of sequence}}
+do_test misuse-3.4 {
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {21 {library routine called out of sequence}}
+do_test misuse-3.5 {
+  catchsql {
+    SELECT * FROM t1
+  }
+} {1 {library routine called out of sequence}}
+
+# Attempt to close the database from an sqlite_exec callback.
+#
+do_test misuse-4.1 {
+  db close
+  set ::DB [sqlite db test.db]
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2}
+do_test misuse-4.2 {
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {0 {a b 1 2}}
+do_test misuse-4.3 {
+  set v [catch {
+    db eval {SELECT * FROM t1} {} {
+      sqlite_close $::DB
+    }
+  } msg]
+  lappend v $msg
+} {1 {library routine called out of sequence}}
+do_test misuse-4.4 {
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {21 {library routine called out of sequence}}
+do_test misuse-4.5 {
+  catchsql {
+    SELECT * FROM t1
+  }
+} {1 {library routine called out of sequence}}
+
+# Attempt to use a database after it has been closed.
+#
+do_test misuse-5.1 {
+  db close
+  set ::DB [sqlite db test.db]
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2}
+do_test misuse-5.2 {
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {0 {a b 1 2}}
+do_test misuse-5.3 {
+  db close
+  sqlite_exec_printf $::DB {SELECT * FROM t1} {}
+} {21 {library routine called out of sequence}}
+
+finish_test