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Core classes common to all Mockrunner modules
There is a newer version: 2.0.7
package com.mockrunner.test.util;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import junit.framework.TestCase;

import com.mockrunner.util.common.StringUtil;

public class StringUtilTest extends TestCase
{
    public void testIsEmptyOrNull()
    {
        assertTrue(StringUtil.isEmptyOrNull(null));
        assertTrue(StringUtil.isEmptyOrNull(""));
        assertFalse(StringUtil.isEmptyOrNull("x"));
        assertFalse(StringUtil.isEmptyOrNull(" "));
        assertFalse(StringUtil.isEmptyOrNull("abc"));
    }

    public void testEmptyStringToNull()
    {
        assertNull(StringUtil.emptyStringToNull(null));
        assertNull(StringUtil.emptyStringToNull(""));
        assertEquals("x", StringUtil.emptyStringToNull("x"));
        assertEquals(" ", StringUtil.emptyStringToNull(" "));
        assertEquals("abc", StringUtil.emptyStringToNull("abc"));
    }

    public void testReplaceAll()
    {
        try
        {
            StringUtil.replaceAll(null, "test", "test");
            fail();
        }
        catch(IllegalArgumentException exc)
        {
            //should throw exception
        }
        try
        {
            StringUtil.replaceAll("test", null, "test");
            fail();
        }
        catch(IllegalArgumentException exc)
        {
            //should throw exception
        }
        try
        {
            StringUtil.replaceAll("test", "test", null);
            fail();
        }
        catch(IllegalArgumentException exc)
        {
            //should throw exception
        }
        try
        {
            StringUtil.replaceAll("test", "", "test");
            fail();
        }
        catch(IllegalArgumentException exc)
        {
            //should throw exception
        }
        assertEquals("test", StringUtil.replaceAll("test", "test", "test"));
        assertEquals("", StringUtil.replaceAll("", "test", "test"));
        assertEquals("abcd", StringUtil.replaceAll("abcd", "test", "test"));
        assertEquals("test", StringUtil.replaceAll("abcd", "abcd", "test"));
        assertEquals("test", StringUtil.replaceAll("test", "testabc", "1"));
        assertEquals("tfst", StringUtil.replaceAll("test", "e", "f"));
        assertEquals("tft", StringUtil.replaceAll("test", "es", "f"));
        assertEquals("", StringUtil.replaceAll("test", "test", ""));
        assertEquals("hello world", StringUtil.replaceAll("test", "test", "hello world"));
        assertEquals("hello worldhello world", StringUtil.replaceAll("testtest", "test", "hello world"));
        assertEquals("ab123abkkjuuababab", StringUtil.replaceAll("a123akkjuuaaa", "a", "ab"));
        assertEquals("aaaa", StringUtil.replaceAll("aaaaaaa", "aa", "a"));
        assertEquals("this is a test", StringUtil.replaceAll("this is a xxxx", "xxxx", "test"));
        assertEquals("aaaaa", StringUtil.replaceAll("aaaaa", "a", "a"));
        assertEquals("bbbbb", StringUtil.replaceAll("aaaaa", "a", "b"));
        assertEquals("bbbb", StringUtil.replaceAll("aabbaa", "aa", "b"));
        assertEquals("Hella warld", StringUtil.replaceAll("Hello world", "o", "a"));
        assertEquals("Hello world", StringUtil.replaceAll("a", "a", "Hello world"));
        assertEquals("Hello world ", StringUtil.replaceAll("   ", "  ", "Hello world"));
        assertEquals("aabc", StringUtil.replaceAll("abcdabc", "abcd", "a"));
    }

    public void testCompare()
    {
        assertEquals(-1, StringUtil.compare("", ""));
        assertEquals(-1, StringUtil.compare("", "abc"));
        assertEquals(-1, StringUtil.compare("123", ""));
        assertEquals(-1, StringUtil.compare("123", "abc"));
        assertEquals(-1, StringUtil.compare("ASD", "asd"));
        assertEquals(0, StringUtil.compare("a", "a"));
        assertEquals(0, StringUtil.compare("a", "ab"));
        assertEquals(0, StringUtil.compare("123", "1bc"));
        assertEquals(2, StringUtil.compare("123", "123"));
        assertEquals(2, StringUtil.compare("123", "1234"));
        assertEquals(2, StringUtil.compare("1234", "123"));
        assertEquals(11, StringUtil.compare(" Hello World", " Hello World "));
    }

    public void testLowerCase()
    {
        assertEquals("aBC", StringUtil.lowerCase("ABC", 0));
        assertEquals("ABc", StringUtil.lowerCase("ABC", 2));
        assertEquals("abc", StringUtil.lowerCase("abc", 1));
        try
        {
            StringUtil.lowerCase("abc", 3);
            fail();
        }
        catch(IndexOutOfBoundsException exc)
        {
            //should throw exception
        }
    }

    public void testLowerCaseWithEndIndex()
    {
        assertEquals("abC", StringUtil.lowerCase("ABC", 0, 2));
        assertEquals("AbC", StringUtil.lowerCase("ABC", 1, 2));
        assertEquals("abc", StringUtil.lowerCase("abc", 0, 1));
        assertEquals("aBC", StringUtil.lowerCase("ABC", 0, 0));
        assertEquals("aBC", StringUtil.lowerCase("ABC", 0, -1));
        assertEquals("abc", StringUtil.lowerCase("ABC", 0, 3));
        try
        {
            StringUtil.lowerCase("abc", 0, 4);
            fail();
        }
        catch(IndexOutOfBoundsException exc)
        {
            //should throw exception
        }
    }

    public void testSplit()
    {
        String test = "This;;is;a;;  ;test; String;;";
        String[] tokens = StringUtil.split(test, ";", true);
        assertTrue(tokens.length == 9);
        assertEquals("This", tokens[0]);
        assertEquals(null, tokens[1]);
        assertEquals("is", tokens[2]);
        assertEquals("a", tokens[3]);
        assertEquals(null, tokens[4]);
        assertEquals(null, tokens[5]);
        assertEquals("test", tokens[6]);
        assertEquals("String", tokens[7]);
        assertEquals(null, tokens[8]);
        tokens = StringUtil.split(test, "test", false);
        assertTrue(tokens.length == 2);
        assertEquals("This;;is;a;;  ;", tokens[0]);
        assertEquals("; String;;", tokens[1]);
    }

    public void testAppendObjectsAsString()
    {
        List