1 files changed, 95 insertions, 0 deletions
diff --git a/test/malloc8.test b/test/malloc8.test
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+# 2007 April 25
+#
+# 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 contains additional out-of-memory checks (see malloc.tcl)
+# added to expose a bug in out-of-memory handling for sqlite3_value_text()
+#
+# $Id: malloc8.test,v 1.7 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping malloc8 tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+
+# The setup is a database with UTF-16 encoding that contains a single
+# large string.  We will be running lots of queries against this 
+# database.  Because we will be extracting the string as UTF-8, there
+# is a type conversion that occurs and thus an opportunity for malloc()
+# to fail and for sqlite3_value_text() to return 0 even though
+# sqlite3_value_type() returns SQLITE_TEXT.
+#
+
+do_malloc_test malloc8-1 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT lower(a), upper(a), quote(a), trim(a), trim('x',a) FROM t1;
+}
+do_malloc_test malloc8-2 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT replace(a,'x','y'), replace('x',a,'y'), replace('x','y',a)
+    FROM t1;
+}
+do_malloc_test malloc8-3 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT length(a), substr(a, 4, 4) FROM t1;
+}
+ifcapable datetime {
+  do_malloc_test malloc8-4 -sqlprep {
+    PRAGMA encoding='UTF-16';
+    CREATE TABLE t1(a);
+    INSERT INTO t1 
+    VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+  } -sqlbody {
+    SELECT julianday(a,a) FROM t1;
+  }
+}
+do_malloc_test malloc8-5 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT 1 FROM t1 WHERE a LIKE 'hello' ESCAPE NULL;
+}
+do_malloc_test malloc8-6 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT hex(randomblob(100));
+}
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-99.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+finish_test