Fix assert argument order in APIAuthenticationTest

Change-Id: Ic011db03e03122df4f8bb892f35531acbb2228bc
diff --git a/src/test/java/de/ids_mannheim/korap/authentication/APIAuthenticationTest.java b/src/test/java/de/ids_mannheim/korap/authentication/APIAuthenticationTest.java
index eeb3ea6..9a22d24 100644
--- a/src/test/java/de/ids_mannheim/korap/authentication/APIAuthenticationTest.java
+++ b/src/test/java/de/ids_mannheim/korap/authentication/APIAuthenticationTest.java
@@ -64,6 +64,6 @@
         context = auth.getTokenContext(authToken);
         TokenType tokenType = context.getTokenType();
         assertEquals(TokenType.API, tokenType);
-        assertEquals(context.getUsername(), "testUser");
+        assertEquals("testUser", context.getUsername());
     }
 }