src/test/org/apache/commons/lang/StringUtilsStartsEndsWithTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.commons.lang;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import junit.textui.TestRunner;

/**
 * Unit tests {@link org.apache.commons.lang.StringUtils} - StartsWith/EndsWith methods
 *
 * @version $Id$
 */
public class StringUtilsStartsEndsWithTest extends TestCase {
    private static final String foo    = "foo";
    private static final String bar    = "bar";
    private static final String foobar = "foobar";
    private static final String FOO    = "FOO";
    private static final String BAR    = "BAR";
    private static final String FOOBAR = "FOOBAR";

    public StringUtilsStartsEndsWithTest(String name) {
        super(name);
    }

    public static void main(String[] args) {
        TestRunner.run(suite());
    }

    public static Test suite() {
        TestSuite suite = new TestSuite(StringUtilsStartsEndsWithTest.class);
        suite.setName("StringUtilsStartsEndsWith Tests");
        return suite;
    }

    protected void setUp() throws Exception {
        super.setUp();
    }

    protected void tearDown() throws Exception {
        super.tearDown();
    }

    //-----------------------------------------------------------------------

    /**
     * Test StringUtils.startsWith()
     */
    public void testStartsWith() {
        assertTrue("startsWith(null, null)", StringUtils.startsWith(null, (String)null));
        assertFalse("startsWith(FOOBAR, null)", StringUtils.startsWith(FOOBAR, (String)null));
        assertFalse("startsWith(null, FOO)",    StringUtils.startsWith(null, FOO));
        assertTrue("startsWith(FOOBAR, \"\")",  StringUtils.startsWith(FOOBAR, ""));

        assertTrue("startsWith(foobar, foo)",  StringUtils.startsWith(foobar, foo));
        assertTrue("startsWith(FOOBAR, FOO)",  StringUtils.startsWith(FOOBAR, FOO));
        assertFalse("startsWith(foobar, FOO)", StringUtils.startsWith(foobar, FOO));
        assertFalse("startsWith(FOOBAR, foo)", StringUtils.startsWith(FOOBAR, foo));

        assertFalse("startsWith(foo, foobar)", StringUtils.startsWith(foo, foobar));
        assertFalse("startsWith(foo, foobar)", StringUtils.startsWith(bar, foobar));

        assertFalse("startsWith(foobar, bar)", StringUtils.startsWith(foobar, bar));
        assertFalse("startsWith(FOOBAR, BAR)", StringUtils.startsWith(FOOBAR, BAR));
        assertFalse("startsWith(foobar, BAR)", StringUtils.startsWith(foobar, BAR));
        assertFalse("startsWith(FOOBAR, bar)", StringUtils.startsWith(FOOBAR, bar));
    }

    /**
     * Test StringUtils.testStartsWithIgnoreCase()
     */
    public void testStartsWithIgnoreCase() {
        assertTrue("startsWithIgnoreCase(null, null)",    StringUtils.startsWithIgnoreCase(null, (String)null));
        assertFalse("startsWithIgnoreCase(FOOBAR, null)", StringUtils.startsWithIgnoreCase(FOOBAR, (String)null));
        assertFalse("startsWithIgnoreCase(null, FOO)",    StringUtils.startsWithIgnoreCase(null, FOO));
        assertTrue("startsWithIgnoreCase(FOOBAR, \"\")",  StringUtils.startsWithIgnoreCase(FOOBAR, ""));

        assertTrue("startsWithIgnoreCase(foobar, foo)", StringUtils.startsWithIgnoreCase(foobar, foo));
        assertTrue("startsWithIgnoreCase(FOOBAR, FOO)", StringUtils.startsWithIgnoreCase(FOOBAR, FOO));
        assertTrue("startsWithIgnoreCase(foobar, FOO)", StringUtils.startsWithIgnoreCase(foobar, FOO));
        assertTrue("startsWithIgnoreCase(FOOBAR, foo)", StringUtils.startsWithIgnoreCase(FOOBAR, foo));

        assertFalse("startsWithIgnoreCase(foo, foobar)", StringUtils.startsWithIgnoreCase(foo, foobar));
        assertFalse("startsWithIgnoreCase(foo, foobar)", StringUtils.startsWithIgnoreCase(bar, foobar));

        assertFalse("startsWithIgnoreCase(foobar, bar)", StringUtils.startsWithIgnoreCase(foobar, bar));
        assertFalse("startsWithIgnoreCase(FOOBAR, BAR)", StringUtils.startsWithIgnoreCase(FOOBAR, BAR));
        assertFalse("startsWithIgnoreCase(foobar, BAR)", StringUtils.startsWithIgnoreCase(foobar, BAR));
        assertFalse("startsWithIgnoreCase(FOOBAR, bar)", StringUtils.startsWithIgnoreCase(FOOBAR, bar));
    }


    /**
     * Test StringUtils.endsWith()
     */
    public void testEndsWith() {
        assertTrue("endsWith(null, null)",    StringUtils.endsWith(null, (String)null));
        assertFalse("endsWith(FOOBAR, null)", StringUtils.endsWith(FOOBAR, (String)null));
        assertFalse("endsWith(null, FOO)",    StringUtils.endsWith(null, FOO));
        assertTrue("endsWith(FOOBAR, \"\")",  StringUtils.endsWith(FOOBAR, ""));

        assertFalse("endsWith(foobar, foo)", StringUtils.endsWith(foobar, foo));
        assertFalse("endsWith(FOOBAR, FOO)", StringUtils.endsWith(FOOBAR, FOO));
        assertFalse("endsWith(foobar, FOO)", StringUtils.endsWith(foobar, FOO));
        assertFalse("endsWith(FOOBAR, foo)", StringUtils.endsWith(FOOBAR, foo));

        assertFalse("endsWith(foo, foobar)", StringUtils.endsWith(foo, foobar));
        assertFalse("endsWith(foo, foobar)", StringUtils.endsWith(bar, foobar));

        assertTrue("endsWith(foobar, bar)",  StringUtils.endsWith(foobar, bar));
        assertTrue("endsWith(FOOBAR, BAR)",  StringUtils.endsWith(FOOBAR, BAR));
        assertFalse("endsWith(foobar, BAR)", StringUtils.endsWith(foobar, BAR));
        assertFalse("endsWith(FOOBAR, bar)", StringUtils.endsWith(FOOBAR, bar));
    }

    /**
     * Test StringUtils.endsWithIgnoreCase()
     */
    public void testEndsWithIgnoreCase() {
        assertTrue("endsWithIgnoreCase(null, null)",    StringUtils.endsWithIgnoreCase(null, (String)null));
        assertFalse("endsWithIgnoreCase(FOOBAR, null)", StringUtils.endsWithIgnoreCase(FOOBAR, (String)null));
        assertFalse("endsWithIgnoreCase(null, FOO)",    StringUtils.endsWithIgnoreCase(null, FOO));
        assertTrue("endsWithIgnoreCase(FOOBAR, \"\")",  StringUtils.endsWithIgnoreCase(FOOBAR, ""));

        assertFalse("endsWithIgnoreCase(foobar, foo)", StringUtils.endsWithIgnoreCase(foobar, foo));
        assertFalse("endsWithIgnoreCase(FOOBAR, FOO)", StringUtils.endsWithIgnoreCase(FOOBAR, FOO));
        assertFalse("endsWithIgnoreCase(foobar, FOO)", StringUtils.endsWithIgnoreCase(foobar, FOO));
        assertFalse("endsWithIgnoreCase(FOOBAR, foo)", StringUtils.endsWithIgnoreCase(FOOBAR, foo));

        assertFalse("endsWithIgnoreCase(foo, foobar)", StringUtils.endsWithIgnoreCase(foo, foobar));
        assertFalse("endsWithIgnoreCase(foo, foobar)", StringUtils.endsWithIgnoreCase(bar, foobar));

        assertTrue("endsWithIgnoreCase(foobar, bar)", StringUtils.endsWithIgnoreCase(foobar, bar));
        assertTrue("endsWithIgnoreCase(FOOBAR, BAR)", StringUtils.endsWithIgnoreCase(FOOBAR, BAR));
        assertTrue("endsWithIgnoreCase(foobar, BAR)", StringUtils.endsWithIgnoreCase(foobar, BAR));
        assertTrue("endsWithIgnoreCase(FOOBAR, bar)", StringUtils.endsWithIgnoreCase(FOOBAR, bar));
    }

}