package net.sf.cotta.test.assertion;

 import org.hamcrest.BaseMatcher;

 import org.hamcrest.Description;

 import org.hamcrest.Matcher;

 import org.hamcrest.core.AllOf;

 import org.junit.matchers.JUnitMatchers;

 import java.util.ArrayList;

 import java.util.List;

 public class StringAssert extends BaseAssert<String, StringAssert> {

   public StringAssert(String value) {

     super(value);

   }

   public StringAssert(byte[] value) {

     this(value == null ? null : new String(value));

   }

   public StringAssert isNotEmpty() {

     not(empty());

     return this;

   }

   public StringAssert isEmpty() {

     matches(empty());

     return this;

   }

   private BaseMatcher<String> empty() {

     return new BaseMatcher<String>() {

       public boolean matches(Object o) {

         String string = (String) o;

         return string != null && string.length() == 0;

       }

       public void describeTo(Description description) {

         description.appendText("empty string");

       }

     };

   }

   public StringAssert contains(String... expectedValues) {

     Matcher<String> matcher = expectedValues.length == 1 ?

             JUnitMatchers.containsString(expectedValues[0]) :

             allof(expectedValues);

     matches(matcher);

     return this;

   }

   private Matcher<String> allof(String[] expectedValues) {

     List<Matcher<? extends String>> matchers = new ArrayList<Matcher<? extends String>>(expectedValues.length);

     for (String item : expectedValues) {

       matchers.add(JUnitMatchers.containsString(item));

     }

     return new AllOf<String>(matchers);

   }

 }