MDCStrLookupTest.java

/**
 * Copyright (c) 2004-2011 QOS.ch
 * All rights reserved.
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 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
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 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
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package org.slf4j.dummyExt;

import static org.junit.Assert.assertEquals;

import org.junit.Test;
import org.slf4j.MDC;
import org.slf4j.ext.MDCStrLookup;

public class MDCStrLookupTest {

    @Test
    public void testLookup() throws Exception {
        MDC.put("key", "value");
        MDC.put("number", "2");
        MDCStrLookup lookup = new MDCStrLookup();
        assertEquals("value", lookup.lookup("key"));
        assertEquals("2", lookup.lookup("number"));
        assertEquals(null, lookup.lookup(null));
        assertEquals(null, lookup.lookup(""));
        assertEquals(null, lookup.lookup("other"));
    }
}