// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.actions.downloadtasks;

import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertThrows;

import java.awt.Component;
import java.util.Arrays;
import java.util.List;

import org.junit.jupiter.api.Test;

/**
 * Unit tests for class {@link ChangesetContentDownloadTask}.
 */
class ChangesetContentDownloadTaskTest {
    /**
     * Unit test of {@code ChangesetContentDownloadTask#ChangesetContentDownloadTask}.
     */
    @Test
    void testChangesetContentDownloadTask() {
        Component parent = new Component() {
            // empty component
        };
        assertDoesNotThrow(() -> new ChangesetContentDownloadTask(parent, 1));
        assertDoesNotThrow(() -> new ChangesetContentDownloadTask(parent, Arrays.asList(1, 2)));
        assertDoesNotThrow(() -> new ChangesetContentDownloadTask(parent, null));
    }

    /**
     * Unit test of {@code ChangesetContentDownloadTask#ChangesetContentDownloadTask} - invalid changeset id.
     */
    @Test
    void testChangesetContentDownloadTaskInvalidId() {
        assertThrows(IllegalArgumentException.class, () -> new ChangesetContentDownloadTask(0));
    }

    /**
     * Unit test of {@code ChangesetContentDownloadTask#ChangesetContentDownloadTask} - null parent.
     */
    @Test
    void testChangesetContentDownloadTaskNullParent1() {
        assertThrows(IllegalArgumentException.class, () -> new ChangesetContentDownloadTask(1));
    }

    /**
     * Unit test of {@code ChangesetContentDownloadTask#ChangesetContentDownloadTask} - null parent.
     */
    @Test
    void testChangesetContentDownloadTaskNullParent2() {
        final List<Integer> toDownload = Arrays.asList(1, 2);
        assertThrows(IllegalArgumentException.class, () -> new ChangesetContentDownloadTask(toDownload));
    }
}