// Copyright (C) 2003-2009 by Object Mentor, Inc. All rights reserved.
// Released under the terms of the CPL Common Public License version 1.0.
package util;

import static org.junit.Assert.fail;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public final class RegexTestCase {

  private RegexTestCase() {
    
  }

  public static void assertMatches(String regexp, String string) {
    assertHasRegexp(regexp, string);
  }

  public static void assertNotMatches(String regexp, String string) {
    assertDoesntHaveRegexp(regexp, string);
  }

  public static void assertHasRegexp(String regexp, String output) {
    Matcher match = Pattern.compile(regexp, Pattern.MULTILINE | Pattern.DOTALL).matcher(output);
    boolean found = match.find();
    if (!found)
      fail("The regexp <" + regexp + "> was not found in: " + output + ".");
  }

  public static void assertDoesntHaveRegexp(String regexp, String output) {
    Matcher match = Pattern.compile(regexp, Pattern.MULTILINE).matcher(output);
    boolean found = match.find();
    if (found)
      fail("The regexp <" + regexp + "> was found.");
  }

  public static void assertSubString(String substring, String string) {
    if (!string.contains(substring))
      fail("substring '" + substring + "' not found in string '" + string + "'.");
  }

  public static void assertNotSubString(String subString, String string) {
    if (string.contains(subString))
      fail("expecting substring:'" + subString + "' in string:'" + string + "'.");
  }

  public static String divWithIdAndContent(String id, String expectedDivContent) {
    return "<div.*?id=\"" + id + "\".*?>" + expectedDivContent + "</div>";
  }
}