junit: assertEquivalent

assira.junit/src/main/java/net/ranides/assira/junit/NewAssert.java

@@ -15,8 +15,10 @@ import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Iterator;
+import java.util.Set;
 import java.util.function.BiPredicate;
 import java.util.function.Predicate;
 
@@ -199,6 +201,10 @@ public final class NewAssert extends org.junit.Assert {
         assertArrayEquals((E[])mValues.invoke(null), (E[])mValues.invoke(null));
     }
     
+    public static <T> boolean assertEquivalent(Collection<T> a, Collection<T> b) {
+        return a.size()==b.size() && a.containsAll(b) && b.containsAll(a);
+	}
+    
     public interface Action {
         
         void run() throws Exception;