Convert main method to unit test

mq/main/mq-jmsra/jmsra-ra/src/main/java/com/sun/messaging/jms/ra/util/CustomTokenizer.java

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2000, 2020 Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2020, 2021 Contributors to Eclipse Foundation
+ * Copyright (c) 2020, 2022 Contributors to Eclipse Foundation
  * Copyright (c) 2020 Payara Services Ltd.
  *
  * This program and the accompanying materials are made available under the
@@ -293,30 +293,6 @@ private int getStringDelimiterIndex(String strToken, String delimiter, int fromI
         }
     }
 
-    public static void main(String[] args) throws Exception {
-
-        // String str = "imqConsumerFlowThreshold=78,imqAddressList=\"tcp://localhost:7676,tcp://localhost:7677\"";
-        String str = "imqConsumerFlowThreshold=78,imqAddressList=tcp://localhost:7676\\,tcp://localhost:7677";
-
-        System.out.println("Parsing " + str);
-
-        String separator = "=";
-        String delimiter = ",";
-
-        CustomTokenizer tokenList = new CustomTokenizer(str, delimiter);
-
-        while (tokenList.hasMoreTokens()) {
-            String propValuePair = tokenList.nextTokenWithoutEscapeAndQuoteChars();
-
-            int loc = propValuePair.indexOf(separator);
-            String propName = propValuePair.substring(0, loc);
-            String propValue = propValuePair.substring(loc + separator.length());
-            System.out.println("name=" + propName);
-            System.out.println("value=" + propValue);
-        }
-
-    }
-
     public static Hashtable<String, String> parseToProperties(String prop) throws InvalidPropertyException {
 
         String separator = "=";

mq/main/mq-jmsra/jmsra-ra/src/test/java/com/sun/messaging/jms/ra/util/CustomTokenizerTest.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2022 Contributors to Eclipse Foundation
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0, which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the
+ * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
+ * version 2 with the GNU Classpath Exception, which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ */
+
+package com.sun.messaging.jms.ra.util;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.ArrayList;
+
+import org.junit.jupiter.api.Test;
+
+import jakarta.resource.spi.InvalidPropertyException;
+
+class CustomTokenizerTest {
+
+    @Test
+    void testConvertedFromMainMethod() throws InvalidPropertyException {
+        String str = "imqConsumerFlowThreshold=78,imqAddressList=tcp://localhost:7676\\,tcp://localhost:7677";
+        String delimiter = ",";
+        var tokens = new ArrayList<String>();
+
+        CustomTokenizer tokenList = new CustomTokenizer(str, delimiter);
+        while (tokenList.hasMoreTokens()) {
+            tokens.add(tokenList.nextTokenWithoutEscapeAndQuoteChars());
+        }
+
+        assertThat(tokens).containsExactly("imqConsumerFlowThreshold=78", "imqAddressList=tcp://localhost:7676,tcp://localhost:7677");
+    }
+}