diff -r faab25d520dd -r 6a13fe0fc19e test/harness/testcaseparser.c
--- a/test/harness/testcaseparser.c	Fri Jan 27 16:18:02 2012 +0000
+++ b/test/harness/testcaseparser.c	Mon Jan 30 00:36:31 2012 +0000
@@ -90,12 +90,20 @@
 TestcaseParser *testcase_parser_new_from_file(const char *filename)
 {
     TestcaseParser *parser;
+    gsize len;
     parser=g_new0(TestcaseParser,1);
-    if (!file_get_contents_text(filename,&parser->contents,NULL))
+    if (!file_get_contents_text(filename,&parser->contents,&len))
     {
 	g_free(parser);
 	return NULL;
     }
+    if (!g_utf8_validate(parser->contents,len,NULL))
+    {
+	fprintf(stderr,"%s: Does not contain valid UTF-8\n",filename);
+	g_free(parser->contents);
+	g_free(parser);
+	return NULL;
+    }
     parser->filename=g_strdup(filename);
     return parser;
 }