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/* @test
 * @bug 4245401
 * @summary Tests that JTextPane with HTMLEditorKit handles the HEAD tag properly
 * @library /java/awt/regtesthelpers
 * @build PassFailJFrame
 * @run main/manual bug4245401
 */

import java.io.StringReader;
import javax.swing.JFrame;
import javax.swing.JTextPane;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLEditorKit;

public class bug4245401 {

    static final String INSTRUCTIONS = """
        Place the cursor before the "H" in the word "HTML"
        Then press <Up-arrow> and <Enter>.
        If an extra HEAD tag appear, the test FAILS, otherwise it PASSES.
    """;

    static JFrame createUI() {

        JFrame frame = new JFrame("bug4245401");
        JTextPane ep = new JTextPane();
        ep.setEditable(true);
        ep.setContentType("text/html");
        HTMLEditorKit kit = (HTMLEditorKit) ep.getEditorKit();
        ep.setEditorKit(kit);
        HTMLDocument doc = (HTMLDocument) kit.createDefaultDocument();
        ep.setDocument(doc);

        try {
            String text = "HTML Test... Test is a test...";
            kit.read(new StringReader(text), doc, 0);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        frame.add(ep);
        frame.setSize(300, 300);
        return frame;
    }

    public static void main(String[] args) throws Exception {
        PassFailJFrame.builder()
            .title("Test Instructions")
            .instructions(INSTRUCTIONS)
            .columns(40)
            .testUI(bug4245401::createUI)
            .build()
            .awaitAndCheck();
    }
}