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package cgeo.geocaching.test;
import cgeo.geocaching.Settings;
import org.apache.commons.lang3.StringUtils;
import android.test.AndroidTestCase;
import android.util.Log;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
/**
* This test is meant for performance measurements of different whitespace replacement implementations.
* It does not test semantical correctness.
*
*/
public class WhitespaceTest extends AndroidTestCase {
private String data;
@Override
protected void setUp() throws Exception {
final StringBuffer buffer = new StringBuffer();
final InputStream is = this.getClass().getResourceAsStream("/cgeo/geocaching/test/mock/GC2CJPF.html");
final BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line = null;
while ((line = br.readLine()) != null) {
buffer.append(line).append('\n');
}
data = buffer.toString();
br.close();
}
public static String replaceWhitespaceManually(final String data) {
final int length = data.length();
final char[] chars = new char[length];
data.getChars(0, length, chars, 0);
int resultSize = 0;
boolean lastWasWhitespace = false;
for (char c : chars) {
if (c == ' ' || c == '\n' || c == '\r' || c == '\t') {
if (!lastWasWhitespace) {
chars[resultSize++] = ' ';
}
lastWasWhitespace = true;
} else {
chars[resultSize++] = c;
lastWasWhitespace = false;
}
}
return String.valueOf(chars, 0, resultSize);
}
public static String replaceWhitespaceStringUtils(final String data) {
return StringUtils.join(StringUtils.split(data, " \n\r\t"), " ");
}
public void testManually() {
String result;
final long start = System.currentTimeMillis();
result = replaceWhitespaceManually(data);
final long end = System.currentTimeMillis();
assertEquals(84028, result.length());
Log.w(Settings.tag, (end - start) + " ms manually");
}
public void testStringUtils() {
String result;
final long start = System.currentTimeMillis();
result = replaceWhitespaceStringUtils(data);
final long end = System.currentTimeMillis();
assertEquals(84026, result.length());
Log.w(Settings.tag, (end - start) + " ms StringUtils");
}
}
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