Commons IO example source code file (IOCaseTestCase.java)

This example Commons IO source code file (IOCaseTestCase.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons IO tags/keywords

a, ab, abc, abc, abcd, abcdefghij, abcdefghij, bc, c, def, exception, exception, io, nullpointerexception, nullpointerexception

The Commons IO IOCaseTestCase.java source code

/*
 * 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.io;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import org.apache.commons.io.testtools.FileBasedTestCase;

/**
 * This is used to test IOCase for correctness.
 *
 * @author Stephen Colebourne
 * @version $Id: IOCaseTestCase.java 919474 2010-03-05 16:31:43Z sebb $
 */
public class IOCaseTestCase extends FileBasedTestCase {

    private static final boolean WINDOWS = (File.separatorChar == '\\');

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

    @Override
    protected void setUp() throws Exception {

    }

    @Override
    protected void tearDown() throws Exception {
    }

    //-----------------------------------------------------------------------
    public void test_forName() throws Exception {
        assertEquals(IOCase.SENSITIVE, IOCase.forName("Sensitive"));
        assertEquals(IOCase.INSENSITIVE, IOCase.forName("Insensitive"));
        assertEquals(IOCase.SYSTEM, IOCase.forName("System"));
        try {
            IOCase.forName("Blah");
            fail();
        } catch (IllegalArgumentException ex) {}
        try {
            IOCase.forName(null);
            fail();
        } catch (IllegalArgumentException ex) {}
    }

    public void test_serialization() throws Exception {
        assertSame(IOCase.SENSITIVE, serialize(IOCase.SENSITIVE));
        assertSame(IOCase.INSENSITIVE, serialize(IOCase.INSENSITIVE));
        assertSame(IOCase.SYSTEM, serialize(IOCase.SYSTEM));
    }

    public void test_getName() throws Exception {
        assertEquals("Sensitive", IOCase.SENSITIVE.getName());
        assertEquals("Insensitive", IOCase.INSENSITIVE.getName());
        assertEquals("System", IOCase.SYSTEM.getName());
    }

    public void test_toString() throws Exception {
        assertEquals("Sensitive", IOCase.SENSITIVE.toString());
        assertEquals("Insensitive", IOCase.INSENSITIVE.toString());
        assertEquals("System", IOCase.SYSTEM.toString());
    }

    public void test_isCaseSensitive() throws Exception {
        assertEquals(true, IOCase.SENSITIVE.isCaseSensitive());
        assertEquals(false, IOCase.INSENSITIVE.isCaseSensitive());
        assertEquals(!WINDOWS, IOCase.SYSTEM.isCaseSensitive());
    }
    //-----------------------------------------------------------------------
    public void test_checkCompare_functionality() throws Exception {
        assertTrue(IOCase.SENSITIVE.checkCompareTo("ABC", "") > 0);
        assertTrue(IOCase.SENSITIVE.checkCompareTo("", "ABC") < 0);
        assertTrue(IOCase.SENSITIVE.checkCompareTo("ABC", "DEF") < 0);
        assertTrue(IOCase.SENSITIVE.checkCompareTo("DEF", "ABC") > 0);
        assertEquals(0, IOCase.SENSITIVE.checkCompareTo("ABC", "ABC"));
        assertEquals(0, IOCase.SENSITIVE.checkCompareTo("", ""));
        
        try {
            IOCase.SENSITIVE.checkCompareTo("ABC", null);
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkCompareTo(null, "ABC");
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkCompareTo(null, null);
            fail();
        } catch (NullPointerException ex) {}
    }

    public void test_checkCompare_case() throws Exception {
        assertEquals(0, IOCase.SENSITIVE.checkCompareTo("ABC", "ABC"));
        assertTrue(IOCase.SENSITIVE.checkCompareTo("ABC", "abc") < 0);
        assertTrue(IOCase.SENSITIVE.checkCompareTo("abc", "ABC") > 0);
        
        assertEquals(0, IOCase.INSENSITIVE.checkCompareTo("ABC", "ABC"));
        assertEquals(0, IOCase.INSENSITIVE.checkCompareTo("ABC", "abc"));
        assertEquals(0, IOCase.INSENSITIVE.checkCompareTo("abc", "ABC"));

        assertEquals(0, IOCase.SYSTEM.checkCompareTo("ABC", "ABC"));
        assertEquals(WINDOWS, IOCase.SYSTEM.checkCompareTo("ABC", "abc") == 0);
        assertEquals(WINDOWS, IOCase.SYSTEM.checkCompareTo("abc", "ABC") == 0);
    }


    //-----------------------------------------------------------------------
    public void test_checkEquals_functionality() throws Exception {
        assertEquals(false, IOCase.SENSITIVE.checkEquals("ABC", ""));
        assertEquals(false, IOCase.SENSITIVE.checkEquals("ABC", "A"));
        assertEquals(false, IOCase.SENSITIVE.checkEquals("ABC", "AB"));
        assertEquals(true, IOCase.SENSITIVE.checkEquals("ABC", "ABC"));
        assertEquals(false, IOCase.SENSITIVE.checkEquals("ABC", "BC"));
        assertEquals(false, IOCase.SENSITIVE.checkEquals("ABC", "C"));
        assertEquals(false, IOCase.SENSITIVE.checkEquals("ABC", "ABCD"));
        assertEquals(false, IOCase.SENSITIVE.checkEquals("", "ABC"));
        assertEquals(true, IOCase.SENSITIVE.checkEquals("", ""));
        
        try {
            IOCase.SENSITIVE.checkEquals("ABC", null);
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkEquals(null, "ABC");
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkEquals(null, null);
            fail();
        } catch (NullPointerException ex) {}
    }

    public void test_checkEquals_case() throws Exception {
        assertEquals(true, IOCase.SENSITIVE.checkEquals("ABC", "ABC"));
        assertEquals(false, IOCase.SENSITIVE.checkEquals("ABC", "Abc"));
        
        assertEquals(true, IOCase.INSENSITIVE.checkEquals("ABC", "ABC"));
        assertEquals(true, IOCase.INSENSITIVE.checkEquals("ABC", "Abc"));
        
        assertEquals(true, IOCase.SYSTEM.checkEquals("ABC", "ABC"));
        assertEquals(WINDOWS, IOCase.SYSTEM.checkEquals("ABC", "Abc"));
    }

    //-----------------------------------------------------------------------
    public void test_checkStartsWith_functionality() throws Exception {
        assertEquals(true, IOCase.SENSITIVE.checkStartsWith("ABC", ""));
        assertEquals(true, IOCase.SENSITIVE.checkStartsWith("ABC", "A"));
        assertEquals(true, IOCase.SENSITIVE.checkStartsWith("ABC", "AB"));
        assertEquals(true, IOCase.SENSITIVE.checkStartsWith("ABC", "ABC"));
        assertEquals(false, IOCase.SENSITIVE.checkStartsWith("ABC", "BC"));
        assertEquals(false, IOCase.SENSITIVE.checkStartsWith("ABC", "C"));
        assertEquals(false, IOCase.SENSITIVE.checkStartsWith("ABC", "ABCD"));
        assertEquals(false, IOCase.SENSITIVE.checkStartsWith("", "ABC"));
        assertEquals(true, IOCase.SENSITIVE.checkStartsWith("", ""));
        
        try {
            IOCase.SENSITIVE.checkStartsWith("ABC", null);
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkStartsWith(null, "ABC");
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkStartsWith(null, null);
            fail();
        } catch (NullPointerException ex) {}
    }

    public void test_checkStartsWith_case() throws Exception {
        assertEquals(true, IOCase.SENSITIVE.checkStartsWith("ABC", "AB"));
        assertEquals(false, IOCase.SENSITIVE.checkStartsWith("ABC", "Ab"));
        
        assertEquals(true, IOCase.INSENSITIVE.checkStartsWith("ABC", "AB"));
        assertEquals(true, IOCase.INSENSITIVE.checkStartsWith("ABC", "Ab"));
        
        assertEquals(true, IOCase.SYSTEM.checkStartsWith("ABC", "AB"));
        assertEquals(WINDOWS, IOCase.SYSTEM.checkStartsWith("ABC", "Ab"));
    }

    //-----------------------------------------------------------------------
    public void test_checkEndsWith_functionality() throws Exception {
        assertEquals(true, IOCase.SENSITIVE.checkEndsWith("ABC", ""));
        assertEquals(false, IOCase.SENSITIVE.checkEndsWith("ABC", "A"));
        assertEquals(false, IOCase.SENSITIVE.checkEndsWith("ABC", "AB"));
        assertEquals(true, IOCase.SENSITIVE.checkEndsWith("ABC", "ABC"));
        assertEquals(true, IOCase.SENSITIVE.checkEndsWith("ABC", "BC"));
        assertEquals(true, IOCase.SENSITIVE.checkEndsWith("ABC", "C"));
        assertEquals(false, IOCase.SENSITIVE.checkEndsWith("ABC", "ABCD"));
        assertEquals(false, IOCase.SENSITIVE.checkEndsWith("", "ABC"));
        assertEquals(true, IOCase.SENSITIVE.checkEndsWith("", ""));
        
        try {
            IOCase.SENSITIVE.checkEndsWith("ABC", null);
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkEndsWith(null, "ABC");
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkEndsWith(null, null);
            fail();
        } catch (NullPointerException ex) {}
    }

    public void test_checkEndsWith_case() throws Exception {
        assertEquals(true, IOCase.SENSITIVE.checkEndsWith("ABC", "BC"));
        assertEquals(false, IOCase.SENSITIVE.checkEndsWith("ABC", "Bc"));
        
        assertEquals(true, IOCase.INSENSITIVE.checkEndsWith("ABC", "BC"));
        assertEquals(true, IOCase.INSENSITIVE.checkEndsWith("ABC", "Bc"));
        
        assertEquals(true, IOCase.SYSTEM.checkEndsWith("ABC", "BC"));
        assertEquals(WINDOWS, IOCase.SYSTEM.checkEndsWith("ABC", "Bc"));
    }

    //-----------------------------------------------------------------------
    public void test_checkIndexOf_functionality() throws Exception {

        // start
        assertEquals(0,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "A"));
        assertEquals(-1,  IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 1, "A"));
        assertEquals(0,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "AB"));
        assertEquals(-1,  IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 1, "AB"));
        assertEquals(0,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "ABC"));
        assertEquals(-1,  IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 1, "ABC"));

        // middle
        assertEquals(3,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "D"));
        assertEquals(3,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 3, "D"));
        assertEquals(-1,  IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 4, "D"));
        assertEquals(3,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "DE"));
        assertEquals(3,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 3, "DE"));
        assertEquals(-1,  IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 4, "DE"));
        assertEquals(3,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "DEF"));
        assertEquals(3,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 3, "DEF"));
        assertEquals(-1,  IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 4, "DEF"));

        // end
        assertEquals(9,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "J"));
        assertEquals(9,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 8, "J"));
        assertEquals(9,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 9, "J"));
        assertEquals(8,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "IJ"));
        assertEquals(8,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 8, "IJ"));
        assertEquals(-1,  IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 9, "IJ"));
        assertEquals(7,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 6, "HIJ"));
        assertEquals(7,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 7, "HIJ"));
        assertEquals(-1,  IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 8, "HIJ"));

        // not found
        assertEquals(-1,   IOCase.SENSITIVE.checkIndexOf("ABCDEFGHIJ", 0, "DED"));

        // too long
        assertEquals(-1,   IOCase.SENSITIVE.checkIndexOf("DEF", 0, "ABCDEFGHIJ"));

        try {
            IOCase.SENSITIVE.checkIndexOf("ABC", 0, null);
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkIndexOf(null, 0, "ABC");
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkIndexOf(null, 0, null);
            fail();
        } catch (NullPointerException ex) {}
    }

    public void test_checkIndexOf_case() throws Exception {
        assertEquals(1,  IOCase.SENSITIVE.checkIndexOf("ABC", 0, "BC"));
        assertEquals(-1, IOCase.SENSITIVE.checkIndexOf("ABC", 0, "Bc"));
        
        assertEquals(1, IOCase.INSENSITIVE.checkIndexOf("ABC", 0, "BC"));
        assertEquals(1, IOCase.INSENSITIVE.checkIndexOf("ABC", 0, "Bc"));
        
        assertEquals(1, IOCase.SYSTEM.checkIndexOf("ABC", 0, "BC"));
        assertEquals(WINDOWS ? 1 : -1, IOCase.SYSTEM.checkIndexOf("ABC", 0, "Bc"));
    }

    //-----------------------------------------------------------------------
    public void test_checkRegionMatches_functionality() throws Exception {
        assertEquals(true, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, ""));
        assertEquals(true, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, "A"));
        assertEquals(true, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, "AB"));
        assertEquals(true, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, "ABC"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, "BC"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, "C"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, "ABCD"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("", 0, "ABC"));
        assertEquals(true, IOCase.SENSITIVE.checkRegionMatches("", 0, ""));
        
        assertEquals(true, IOCase.SENSITIVE.checkRegionMatches("ABC", 1, ""));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 1, "A"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 1, "AB"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 1, "ABC"));
        assertEquals(true, IOCase.SENSITIVE.checkRegionMatches("ABC", 1, "BC"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 1, "C"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 1, "ABCD"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("", 1, "ABC"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("", 1, ""));
        
        try {
            IOCase.SENSITIVE.checkRegionMatches("ABC", 0, null);
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkRegionMatches(null, 0, "ABC");
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkRegionMatches(null, 0, null);
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkRegionMatches("ABC", 1, null);
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkRegionMatches(null, 1, "ABC");
            fail();
        } catch (NullPointerException ex) {}
        try {
            IOCase.SENSITIVE.checkRegionMatches(null, 1, null);
            fail();
        } catch (NullPointerException ex) {}
    }

    public void test_checkRegionMatches_case() throws Exception {
        assertEquals(true, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, "AB"));
        assertEquals(false, IOCase.SENSITIVE.checkRegionMatches("ABC", 0, "Ab"));
        
        assertEquals(true, IOCase.INSENSITIVE.checkRegionMatches("ABC", 0, "AB"));
        assertEquals(true, IOCase.INSENSITIVE.checkRegionMatches("ABC", 0, "Ab"));
        
        assertEquals(true, IOCase.SYSTEM.checkRegionMatches("ABC", 0, "AB"));
        assertEquals(WINDOWS, IOCase.SYSTEM.checkRegionMatches("ABC", 0, "Ab"));
    }

    //-----------------------------------------------------------------------
    private IOCase serialize(IOCase value) throws Exception {
        ByteArrayOutputStream buf = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(buf);
        out.writeObject(value);
        out.flush();
        out.close();

        ByteArrayInputStream bufin = new ByteArrayInputStream(buf.toByteArray());
        ObjectInputStream in = new ObjectInputStream(bufin);
        return (IOCase) in.readObject();
    }

}