PLUGIN-1823: Revert changes done to FailedConnectionTest.java

Author: sgarg-CS

amazon-redshift-plugin/src/test/java/io/cdap/plugin/amazon/redshift/RedshiftFailedConnectionTest.java

@@ -32,6 +32,7 @@ public void test() throws ClassNotFoundException, IOException {
 
     super.test(JDBC_DRIVER_CLASS_NAME, connector, "Failed to create connection to database via connection string: " +
       "jdbc:redshift://localhost:5432/db and arguments: " +
-      "{user=username}. Error: SQLException: The server does not support SSL..");
+      "{user=username}. Error: ConnectException: Connection refused " +
+      "(Connection refused).");
   }
 }

mysql-plugin/src/test/java/io/cdap/plugin/mysql/MysqlFailedConnectionTest.java

@@ -35,7 +35,7 @@ public void test() throws ClassNotFoundException, IOException {
       "rewriteBatchedStatements=true, " +
       "connectTimeout=20000, tinyInt1isBit=false, " +
       "socketTimeout=20000}. Error: " +
-      "SQLException: Access denied for user 'username'@'localhost' (using password: YES).");
+      "ConnectException: Connection refused (Connection refused).");
   }
 
   @Test
@@ -50,7 +50,7 @@ public void testWithUpdatedConnectionArguments() throws ClassNotFoundException,
       "rewriteBatchedStatements=true, " +
       "connectTimeout=30000, tinyInt1isBit=false, " +
       "socketTimeout=30000}. Error: " +
-      "SQLException: Access denied for user 'username'@'localhost' (using password: YES).");
+      "ConnectException: Connection refused (Connection refused).");
   }
 
 }

postgresql-plugin/src/test/java/io/cdap/plugin/postgres/PostgresFailedConnectionTest.java

@@ -32,7 +32,7 @@ public void test() throws ClassNotFoundException, IOException {
 
     super.test(JDBC_DRIVER_CLASS_NAME, connector, "Failed to create connection to database via connection string: " +
                                                     "jdbc:postgresql://localhost:5432/null and arguments: " +
-                                                    "{user=username}. Error: PSQLException: FATAL: " +
-                                                    "password authentication failed for user \"username\".");
+                                                    "{user=username}. Error: ConnectException: Connection refused " +
+                                                    "(Connection refused).");
   }
 }