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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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import com.sun.swingset3.demos.tree.TreeDemo;
import static com.sun.swingset3.demos.tree.TreeDemo.DEMO_TITLE;
import javax.swing.tree.TreePath;
import static org.testng.AssertJUnit.*;
import org.testng.annotations.Test;
import org.netbeans.jemmy.ClassReference;
import org.netbeans.jemmy.operators.JFrameOperator;
import org.netbeans.jemmy.operators.JTreeOperator;
import static org.jemmy2ext.JemmyExt.captureDebugInfoOnFail;

/*
 * @test
 * @key headful
 * @summary Verifies SwingSet3 TreeDemo by expanding all collapsed nodes in the
 *          tree and then collapsing all the expanded nodes in the tree. It
 *          verifies the number of nodes expanded, number of nodes collapsed and
 *          number of rows in the tree in the begininng, after expanding and
 *          after collapsing the nodes. It also checks that the tree grows
 *          vertically (as ScrollPane allows it).
 *
 * @library /sanity/client/lib/jemmy/src
 * @library /sanity/client/lib/Jemmy2Ext/src
 * @library /sanity/client/lib/SwingSet3/src
 * @build org.jemmy2ext.JemmyExt
 * @build com.sun.swingset3.demos.tree.TreeDemo
 * @run testng TreeDemoTest
 */
public class TreeDemoTest {

    @Test
    public void test() throws Exception {
        captureDebugInfoOnFail(() -> {
            new ClassReference(TreeDemo.class.getCanonicalName()).startApplication();

            JFrameOperator frame = new JFrameOperator(DEMO_TITLE);

            JTreeOperator tree = new JTreeOperator(frame);

            assertEquals("Initial number of rows in the tree", 4, tree.getRowCount());

            int initialTreeHeight = tree.getHeight();

            // expand all nodes
            int expandsCount = 0;
            for (int i = 0; i < tree.getRowCount(); i++) {
                TreePath tp = tree.getPathForRow(i);
                if (tree.getChildCount(tp) > 0 && !tree.isExpanded(tp)) {
                    tree.expandRow(i);
                    expandsCount++;
                }
            }

            assertEquals("Number of rows expanded", 75, expandsCount);
            assertEquals("Number of rows in the tree after expanding all of them",
                    616, tree.getRowCount());

            int expandedTreeHeight = tree.getHeight();
            assertTrue("Expanded tree height has increased, current "
                    + expandedTreeHeight + " > initial " + initialTreeHeight,
                    expandedTreeHeight > initialTreeHeight);

            // collapse all nodes
            int collapsesCount = 0;
            for (int i = tree.getRowCount() - 1; i >= 0; i--) {
                TreePath tp = tree.getPathForRow(i);
                if (tree.getChildCount(tp) > 0 && tree.isExpanded(tp)) {
                    tree.collapseRow(i);
                    collapsesCount++;
                }
            }

            assertEquals("Number of rows collapsed", 76, collapsesCount);
            assertEquals("Number of rows in the tree after collapsing all of them",
                    1, tree.getRowCount());

            int collapsedTreeHeight = tree.getHeight();
            assertTrue("Collpased tree height is not longer than initial, "
                    + "current " + collapsedTreeHeight + " <= initial "
                    + initialTreeHeight,
                    collapsedTreeHeight <= initialTreeHeight);

        });
    }

}