ThumbnailSupplierTest.java

/**
 * Copyright (c) Codice Foundation
 * <p>
 * This is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser
 * General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or any later version.
 * <p>
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details. A copy of the GNU Lesser General Public License
 * is distributed along with this program and can be found at
 * <http://www.gnu.org/licenses/lgpl.html>.
 */
package ddf.catalog.transformer;

import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;

import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import org.junit.Test;

import ddf.catalog.data.impl.MetacardImpl;

public class ThumbnailSupplierTest {
    private final ThumbnailSupplier supplier = new ThumbnailSupplier();

    private byte[] getImageBytes() throws IOException {
        try (final InputStream inputStream = getClass().getClassLoader()
                .getResourceAsStream("flower.jpg")) {
            return IOUtils.toByteArray(inputStream);
        }
    }

    @Test
    public void testSupplierWithThumbnail() throws IOException {
        final MetacardImpl metacard = new MetacardImpl();
        metacard.setThumbnail(getImageBytes());
        assertThat(supplier.apply(metacard, null)
                .isPresent(), is(true));
    }

    @Test
    public void testSupplierWithoutThumbnail() {
        assertThat(supplier.apply(new MetacardImpl(), null)
                .isPresent(), is(false));
    }
}