Validation for "allOf"

[ShivKJ]

I am trying to find a validation when a list contains all items present in another list.

I see methods such notOneOf (perhaps it can be renamed noneOf), oneOf but something like allOf is missing. I tried adding it like below,

import static com.google.common.collect.Sets.difference;
import static java.util.stream.Collectors.joining;

import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;

import am.ik.yavi.core.CustomConstraint;

public final class ContainsAllOf<T> implements CustomConstraint<List<T>> {
    private final Set<T> values;

    public ContainsAllOf(Collection<? extends T> values) {
        this.values = Set.copyOf(values);
    }

    @Override
    public boolean test(List<T> ts) {
        return new HashSet<>(ts).containsAll(values);
    }

    @Override
    public Object[] arguments(List<T> violatedValue) {
        var missingValues = difference(values, new HashSet<>(violatedValue)).stream()
                .map(Objects::toString)
                .collect(joining(", "));

        return new Object[]{missingValues};
    }

    @Override
    public String defaultMessageFormat() {
        return "{0} -> {1}";
    }

    @Override
    public String messageKey() {
        return "<should contain all of(" + values + ")>";
    }
}

Can we have it in the lib itself?

[making]

Would you please send a PR with your real use case in a test case?

[ShivKJ]

@making Sure, will create PR.

[ShivKJ]

@making I have created the PR: #438, please have a look.

[making]

fixed in #438