/*
* Copyright 2004-2011 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.test.unit;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.Date;
import java.util.Random;
import org.h2.message.DbException;
import org.h2.test.TestBase;
import org.h2.test.utils.AssertThrows;
import org.h2.util.DateTimeUtils;
import org.h2.util.StringUtils;
/**
* Tests string utility methods.
*/
public class TestStringUtils extends TestBase {
/**
* Run just this test.
*
* @param a ignored
*/
public static void main(String... a) throws Exception {
TestBase.createCaller().init().test();
}
public void test() throws Exception {
testHex();
testXML();
testSplit();
testJavaString();
testURL();
testPad();
testReplaceAll();
}
private void testHex() {
assertEquals("face", StringUtils.convertBytesToHex(new byte[] { (byte) 0xfa, (byte) 0xce }));
assertEquals(new byte[] { (byte) 0xfa, (byte) 0xce }, StringUtils.convertHexToBytes("face"));
assertEquals(new byte[] { (byte) 0xfa, (byte) 0xce }, StringUtils.convertHexToBytes("fAcE"));
assertEquals(new byte[] { (byte) 0xfa, (byte) 0xce }, StringUtils.convertHexToBytes("FaCe"));
new AssertThrows(DbException.class) { public void test() {
StringUtils.convertHexToBytes("120");
}};
new AssertThrows(DbException.class) { public void test() {
StringUtils.convertHexToBytes("fast");
}};
new AssertThrows(DbException.class) { public void test() {
StringUtils.convertHexToBytes("012=abcf");
}};
}
private void testPad() {
assertEquals("large", StringUtils.pad("larger text", 5, null, true));
assertEquals("large", StringUtils.pad("larger text", 5, null, false));
assertEquals("short+++++", StringUtils.pad("short", 10, "+", true));
assertEquals("+++++short", StringUtils.pad("short", 10, "+", false));
}
private void testXML() {
assertEquals("<!-- - - - - - -abc- - - - - - -->\n", StringUtils.xmlComment("------abc------"));
assertEquals("<test/>\n", StringUtils.xmlNode("test", null, null));
assertEquals("<test>Grübel</test>\n", StringUtils.xmlNode("test", null, StringUtils.xmlText("Gr\u00fcbel")));
assertEquals("Rand&Blue", StringUtils.xmlText("Rand&Blue"));
assertEquals("<<[[[]]]>>", StringUtils.xmlCData("<<[[[]]]>>"));
Date dt = DateTimeUtils.parseDateTime("2001-02-03 04:05:06 GMT", "yyyy-MM-dd HH:mm:ss z", "en", "GMT");
String s = StringUtils.xmlStartDoc()
+ StringUtils.xmlComment("Test Comment")
+ StringUtils.xmlNode("rss", StringUtils.xmlAttr("version", "2.0"), StringUtils
.xmlComment("Test Comment\nZeile2")
+ StringUtils.xmlNode("channel", null, StringUtils.xmlNode("title", null, "H2 Database Engine")
+ StringUtils.xmlNode("link", null, "http://www.h2database.com")
+ StringUtils.xmlNode("description", null, "H2 Database Engine")
+ StringUtils.xmlNode("language", null, "en-us")
+ StringUtils.xmlNode("pubDate", null, DateTimeUtils.formatDateTime(dt,
"EEE, d MMM yyyy HH:mm:ss z", "en", "GMT"))
+ StringUtils.xmlNode("lastBuildDate", null, DateTimeUtils.formatDateTime(dt,
"EEE, d MMM yyyy HH:mm:ss z", "en", "GMT"))
+ StringUtils.xmlNode("item", null, StringUtils.xmlNode("title", null,
"New Version 0.9.9.9.9")
+ StringUtils.xmlNode("link", null, "http://www.h2database.com")
+ StringUtils.xmlNode("description", null, StringUtils
.xmlCData("\nNew Features\nTest\n")))));
assertEquals(s, "<?xml version=\"1.0\"?>\n" + "<!-- Test Comment -->\n" + "<rss version=\"2.0\">\n" + " <!--\n"
+ " Test Comment\n" + " Zeile2\n" + " -->\n" + " <channel>\n"
+ " <title>H2 Database Engine</title>\n" + " <link>http://www.h2database.com</link>\n"
+ " <description>H2 Database Engine</description>\n" + " <language>en-us</language>\n"
+ " <pubDate>Sat, 3 Feb 2001 04:05:06 GMT</pubDate>\n"
+ " <lastBuildDate>Sat, 3 Feb 2001 04:05:06 GMT</lastBuildDate>\n" + " <item>\n"
+ " <title>New Version 0.9.9.9.9</title>\n"
+ " <link>http://www.h2database.com</link>\n" + " <description>\n"
+ " <![CDATA[\n" + " New Features\n" + " Test\n"
+ " ]]>\n" + " </description>\n" + " </item>\n" + " </channel>\n"
+ "</rss>\n");
}
private void testURL() throws UnsupportedEncodingException {
Random random = new Random(1);
for (int i = 0; i < 100; i++) {
int len = random.nextInt(10);
StringBuilder buff = new StringBuilder();
for (int j = 0; j < len; j++) {
if (random.nextBoolean()) {
buff.append((char) random.nextInt(0x3000));
} else {
buff.append((char) random.nextInt(255));
}
}
String a = buff.toString();
String b = URLEncoder.encode(a, "UTF-8");
String c = URLDecoder.decode(b, "UTF-8");
assertEquals(a, c);
String d = StringUtils.urlDecode(b);
assertEquals(d, c);
}
}
private void testJavaString() {
assertEquals("a\"b", StringUtils.javaDecode("a\"b"));
Random random = new Random(1);
for (int i = 0; i < 1000; i++) {
int len = random.nextInt(10);
StringBuilder buff = new StringBuilder();
for (int j = 0; j < len; j++) {
if (random.nextBoolean()) {
buff.append((char) random.nextInt(0x3000));
} else {
buff.append((char) random.nextInt(255));
}
}
String a = buff.toString();
String b = StringUtils.javaEncode(a);
String c = StringUtils.javaDecode(b);
assertEquals(a, c);
}
}
private void testSplit() {
assertEquals(3, StringUtils.arraySplit("ABC,DEF,G\\,HI", ',', false).length);
assertEquals(StringUtils.arrayCombine(new String[] { "", " ", "," }, ','), ", ,\\,");
Random random = new Random(1);
for (int i = 0; i < 100; i++) {
int len = random.nextInt(10);
StringBuilder buff = new StringBuilder();
String select = "abcd,";
for (int j = 0; j < len; j++) {
char c = select.charAt(random.nextInt(select.length()));
if (c == 'a') {
buff.append("\\\\");
} else if (c == 'b') {
buff.append("\\,");
} else {
buff.append(c);
}
}
String a = buff.toString();
String[] b = StringUtils.arraySplit(a, ',', false);
String c = StringUtils.arrayCombine(b, ',');
assertEquals(a, c);
}
}
private void testReplaceAll() {
assertEquals("def", StringUtils.replaceAll("abc def", "abc ", ""));
assertEquals("af", StringUtils.replaceAll("abc def", "bc de", ""));
assertEquals("abc def", StringUtils.replaceAll("abc def", "bc ", "bc "));
assertEquals("abc ", StringUtils.replaceAll("abc def", "def", ""));
assertEquals(" ", StringUtils.replaceAll("abc abc", "abc", ""));
assertEquals("xyz xyz", StringUtils.replaceAll("abc abc", "abc", "xyz"));
assertEquals("abc def", StringUtils.replaceAll("abc def", "xyz", "abc"));
assertEquals("", StringUtils.replaceAll("abcabcabc", "abc", ""));
assertEquals("abcabcabc", StringUtils.replaceAll("abcabcabc", "aBc", ""));
}
}