40 lines
1.1 KiB
Java
40 lines
1.1 KiB
Java
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package com.iluwatar.lazy.loading;
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import java.lang.reflect.Field;
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import java.util.function.Supplier;
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/**
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* Date: 12/19/15 - 12:27 PM
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*
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* @author Jeroen Meulemeester
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*/
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public class Java8HolderTest extends AbstractHolderTest {
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private final Java8Holder holder = new Java8Holder();
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@Override
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Heavy getInternalHeavyValue() throws Exception {
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final Field holderField = Java8Holder.class.getDeclaredField("heavy");
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holderField.setAccessible(true);
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final Supplier<Heavy> supplier = (Supplier<Heavy>) holderField.get(this.holder);
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final Class<? extends Supplier> supplierClass = supplier.getClass();
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// This is a little fishy, but I don't know another way to test this:
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// The lazy holder is at first a lambda, but gets replaced with a new supplier after loading ...
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if (supplierClass.isLocalClass()) {
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final Field instanceField = supplierClass.getDeclaredField("heavyInstance");
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instanceField.setAccessible(true);
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return (Heavy) instanceField.get(supplier);
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} else {
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return null;
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}
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}
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@Override
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Heavy getHeavy() throws Exception {
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return holder.getHeavy();
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}
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}
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