diff --git a/modules/openid/openid.test b/modules/openid/openid.test
index 5f7493a..d0708e0 100644
--- a/modules/openid/openid.test
+++ b/modules/openid/openid.test
@@ -680,11 +680,11 @@ class OpenIDTestCase extends DrupalWebTestCase {
    * Test _openid_dh_XXX_to_XXX() functions.
    */
   function testConversion() {
-    $this->assertEqual(_openid_dh_long_to_base64('12345678901234567890123456789012345678901234567890'), 'CHJ/Y2mq+DyhUCZ0evjH8ZbOPwrS', '_openid_dh_long_to_base64() returned expected result.');
-    $this->assertEqual(_openid_dh_base64_to_long('BsH/g8Nrpn2dtBSdu/sr1y8hxwyx'), '09876543210987654321098765432109876543210987654321', '_openid_dh_base64_to_long() returned expected result.');
+    $this->assertIdentical(_openid_dh_long_to_base64('12345678901234567890123456789012345678901234567890'), 'CHJ/Y2mq+DyhUCZ0evjH8ZbOPwrS', '_openid_dh_long_to_base64() returned expected result.');
+    $this->assertIdentical(_openid_dh_base64_to_long('BsH/g8Nrpn2dtBSdu/sr1y8hxwyx'), '9876543210987654321098765432109876543210987654321', '_openid_dh_base64_to_long() returned expected result.');
 
-    $this->assertEqual(_openid_dh_long_to_binary('12345678901234567890123456789012345678901234567890'), "\x08r\x7fci\xaa\xf8<\xa1P&tz\xf8\xc7\xf1\x96\xce?\x0a\xd2", '_openid_dh_long_to_binary() returned expected result.');
-    $this->assertEqual(_openid_dh_binary_to_long("\x06\xc1\xff\x83\xc3k\xa6}\x9d\xb4\x14\x9d\xbb\xfb+\xd7/!\xc7\x0c\xb1"), '09876543210987654321098765432109876543210987654321', '_openid_dh_binary_to_long() returned expected result.');
+    $this->assertIdentical(_openid_dh_long_to_binary('12345678901234567890123456789012345678901234567890'), "\x08r\x7fci\xaa\xf8<\xa1P&tz\xf8\xc7\xf1\x96\xce?\x0a\xd2", '_openid_dh_long_to_binary() returned expected result.');
+    $this->assertIdentical(_openid_dh_binary_to_long("\x06\xc1\xff\x83\xc3k\xa6}\x9d\xb4\x14\x9d\xbb\xfb+\xd7/!\xc7\x0c\xb1"), '9876543210987654321098765432109876543210987654321', '_openid_dh_binary_to_long() returned expected result.');
   }
 
   /**