more fail information for binary data test

Author: AlexeyDsov

test/misc/DAOTest.class.php

@@ -707,9 +707,10 @@ public function nonIntegerIdentifier()
 			try {
 				TestBinaryStuff::dao()->import($bin);
 			} catch (DatabaseException $e) {
-				return $this->fail();
+				return $this->fail($e->getMessage());
 			}
 
+			TestBinaryStuff::dao()->dropIdentityMap();
 			Cache::me()->clean();
 
 			$prm = Primitive::prototypedIdentifier('TestBinaryStuff', 'id');
@@ -726,7 +727,7 @@ public function nonIntegerIdentifier()
 			try {
 				$integerIdPrimitive->import(array('id' => 'string-instead-of-integer'));
 			} catch (DatabaseException $e) {
-				return $this->fail();
+				return $this->fail($e->getMessage());
 			}
 		}