net.jqwik.engine.properties.shrinking.AbstractShrinkable Maven / Gradle / Ivy

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Jqwik Engine module

There is a newer version: 1.9.1

package net.jqwik.engine.properties.shrinking;

import java.util.*;

import net.jqwik.api.*;

public abstract class AbstractShrinkable implements Shrinkable {

	private final T value;

	public AbstractShrinkable(T value) {
		this.value = value;
	}

	@Override
	public T value() {
		return value;
	}

	@Override
	public ShrinkingSequence shrink(Falsifier falsifier) {
		return new DeepSearchShrinkingSequence<>(this, this::shrinkCandidatesFor, falsifier);
	}

	public abstract Set> shrinkCandidatesFor(Shrinkable shrinkable);

	@Override
	public boolean equals(Object o) {
		if (this == o) return true;
		if (o == null || getClass() != o.getClass()) return false;

		AbstractShrinkable that = (AbstractShrinkable) o;

		return value.equals(that.value);
	}

	@Override
	public int hashCode() {
		return value.hashCode();
	}

	@Override
	public String toString() {
		return String.format("%s<%s>(%s:%s)", //
			getClass().getSimpleName(), //
			value().getClass().getSimpleName(), //
			value(), distance());
	}
}