CacheableMetadataProviderTestCase.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
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package org.apache.felix.ipojo.manipulator.metadata;

import junit.framework.TestCase;
import org.apache.felix.ipojo.manipulator.MetadataProvider;
import org.apache.felix.ipojo.metadata.Element;

import java.util.Collections;

import static org.mockito.Mockito.*;

public class CacheableMetadataProviderTestCase extends TestCase {
    public void testGetMetadatas() throws Exception {
        MetadataProvider delegate = mock(MetadataProvider.class);
        CacheableMetadataProvider provider = new CacheableMetadataProvider(delegate);

        Element returned = new Element("test", null);
        when(delegate.getMetadatas()).thenReturn(Collections.singletonList(returned));

        provider.getMetadatas();
        provider.getMetadatas();
        provider.getMetadatas();
        provider.getMetadatas();

        verify(delegate, atMost(1)).getMetadatas();

    }
}