1 package org.hamcrest.text; 2 3 import org.hamcrest.Description; 4 import org.hamcrest.Matcher; 5 import org.hamcrest.TypeSafeMatcher; 6 7 import java.util.regex.Pattern; 8 9 public class MatchesPattern extends TypeSafeMatcher<String> { 10 private final Pattern pattern; 11 MatchesPattern(Pattern pattern)12 public MatchesPattern(Pattern pattern) { 13 this.pattern = pattern; 14 } 15 16 @Override matchesSafely(String item)17 protected boolean matchesSafely(String item) { 18 return pattern.matcher(item).matches(); 19 } 20 21 @Override describeTo(Description description)22 public void describeTo(Description description) { 23 description.appendText("a string matching the pattern '" + pattern + "'"); 24 } 25 26 /** 27 * Creates a matcher of {@link java.lang.String} that matches when the examined string 28 * exactly matches the given {@link java.util.regex.Pattern}. 29 */ matchesPattern(Pattern pattern)30 public static Matcher<String> matchesPattern(Pattern pattern) { 31 return new MatchesPattern(pattern); 32 } 33 34 /** 35 * Creates a matcher of {@link java.lang.String} that matches when the examined string 36 * exactly matches the given regular expression, treated as a {@link java.util.regex.Pattern}. 37 */ matchesPattern(String regex)38 public static Matcher<String> matchesPattern(String regex) { 39 return new MatchesPattern(Pattern.compile(regex)); 40 } 41 } 42