adding allOf validation and test cases

src/main/java/am/ik/yavi/constraint/CollectionConstraint.java

@@ -29,6 +29,7 @@
 import static am.ik.yavi.core.NullAs.VALID;
 import static am.ik.yavi.core.ViolationMessage.Default.COLLECTION_CONTAINS;
 import static am.ik.yavi.core.ViolationMessage.Default.COLLECTION_UNIQUE;
+import static am.ik.yavi.core.ViolationMessage.Default.OBJECT_ALL_OF;
 
 public class CollectionConstraint<T, L extends Collection<E>, E>
 		extends ContainerConstraintBase<T, L, CollectionConstraint<T, L, E>> {
@@ -69,6 +70,22 @@ public CollectionConstraint<T, L, E> unique() {
 		return this;
 	}
 
+	public CollectionConstraint<T, L, E> allOf(Collection<? extends E> values) {
+		this.predicates().add(ConstraintPredicate.withViolatedValue(collection -> {
+			final Set<E> missingValues = new HashSet<>(values);
+
+			if (collection instanceof Set)
+				missingValues.removeAll(collection);
+			else
+				missingValues.removeAll(new HashSet<>(collection));
+
+			return missingValues.isEmpty() ? Optional.empty() : Optional.of(new ViolatedValue(missingValues));
+		}, OBJECT_ALL_OF, () -> new Object[]{values.toString()}, VALID));
+
+		return this;
+	}
+
+
 	@Override
 	protected ToIntFunction<L> size() {
 		return Collection::size;

src/main/java/am/ik/yavi/core/ViolationMessage.java

@@ -42,6 +42,7 @@ enum Default implements ViolationMessage {
 		OBJECT_EQUAL_TO("object.equalTo", "\"{0}\" must be equal to {1}"), //
 		OBJECT_ONE_OF("object.oneOf", "\"{0}\" must be one of the following values: {1}"), //
 		OBJECT_NOT_ONE_OF("object.notOneOf", "\"{0}\" must not be one of the following values: {1}"), //
+		OBJECT_ALL_OF("object.allOf", "\"{0}\" must be have of all of the following values: {1}, missing values: {2}"), //
 		CONTAINER_NOT_EMPTY("container.notEmpty", "\"{0}\" must not be empty"), //
 		CONTAINER_LESS_THAN("container.lessThan", "The size of \"{0}\" must be less than {1}. The given size is {2}"), //
 		CONTAINER_LESS_THAN_OR_EQUAL("container.lessThanOrEqual",

src/test/java/am/ik/yavi/constraint/CollectionConstraintTest.java

@@ -86,6 +86,18 @@ void unique() {
 		assertThat(predicate.test(Arrays.asList("a", "b", "c", "b"))).isFalse();
 	}
 
+	@Test
+	void allOf() {
+		Predicate<List<String>> predicate = retrievePredicate(c -> c.allOf(Arrays.asList("a", "b", "c")));
+		assertThat(predicate.test(Arrays.asList("a", "b", "c", "d"))).isTrue();
+		assertThat(predicate.test(Arrays.asList("a", "b", "c"))).isTrue();
+		assertThat(predicate.test(Arrays.asList("a", "b"))).isFalse();
+		assertThat(predicate.test(Arrays.asList("a"))).isFalse();
+		assertThat(predicate.test(Arrays.asList("a", "b", "d"))).isFalse();
+		assertThat(predicate.test(Arrays.asList("x", "y"))).isFalse();
+		assertThat(predicate.test(Arrays.asList())).isFalse();
+	}
+
 	private static Predicate<List<String>> retrievePredicate(
 			Function<CollectionConstraint<List<String>, List<String>, String>, CollectionConstraint<List<String>, List<String>, String>> constraint) {
 		return constraint.apply(new CollectionConstraint<>()).predicates().peekFirst().predicate();