poi-scratchpad/src/test/java/org/apache/poi/hslf/model/TestFreeform.java

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package org.apache.poi.hslf.model;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.awt.geom.Area;
import java.awt.geom.Line2D;
import java.awt.geom.Path2D;
import java.awt.geom.Rectangle2D;

import org.apache.poi.hslf.usermodel.HSLFFreeformShape;
import org.junit.jupiter.api.Test;

/**
 * Test Freeform object.
 * The Freeform shape is constructed from java.awt.GeneralPath.
 * Check that the get/set path accessors are consistent.
 * (TODO: verification of Bezier curves is more difficult due to rounding error.  Figure out a test approach for that)
 *
 * @author Yegor Kozlov
 */
public final class TestFreeform {

    @Test
    void testClosedPath() {

        Path2D.Double path1 = new Path2D.Double();
        path1.moveTo(100, 100);
        path1.lineTo(200, 100);
        path1.lineTo(200, 200);
        path1.lineTo(100, 200);
        path1.closePath();

        HSLFFreeformShape p = new HSLFFreeformShape();
        p.setPath(path1);

        java.awt.Shape path2 = p.getPath();
        assertTrue(new Area(path1).equals(new Area(path2)));
    }

    @Test
    void testLine() {

        Path2D.Double path1 = new Path2D.Double(new Line2D.Double(100, 100, 200, 100));

        HSLFFreeformShape p = new HSLFFreeformShape();
        p.setPath(path1);

        java.awt.Shape path2 = p.getPath();
        assertTrue(new Area(path1).equals(new Area(path2)));
    }

    @Test
    void testRectangle() {

        Path2D.Double path1 = new Path2D.Double(new Rectangle2D.Double(100, 100, 200, 50));

        HSLFFreeformShape p = new HSLFFreeformShape();
        p.setPath(path1);

        java.awt.Shape path2 = p.getPath();
        assertTrue(new Area(path1).equals(new Area(path2)));
   }

    /**
     * Avoid NPE in  Freeform.getOutline() if either GEOMETRY__VERTICES or
     * GEOMETRY__SEGMENTINFO is missing, see Bugzilla 54188
     */
    @Test
    void test54188() {

        HSLFFreeformShape p = new HSLFFreeformShape();
        Path2D path = p.getPath();
        Path2D.Double emptyPath = new Path2D.Double();
        assertEquals(emptyPath.getBounds2D(), path.getBounds2D());
    }
}