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An approvals test library

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package com.oneeyedmen.okeydoke.internal;

import java.util.Iterator;

public abstract class MappingIterable implements Iterable {

    private final Iterable wrapped;

    public MappingIterable(Iterable wrapped) {
        this.wrapped = wrapped;
    }

    @Override
    public Iterator iterator() {
        return new WrappingIterator(wrapped.iterator()) {
            @Override
            public T next() {
                return map(wrapped.next());
            }
        };
    }

    protected abstract T map(U next);
}