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/*
 * @test
 * @bug 4785160
 * @summary Test that the cursor is always visible when typing in JTextArea with JScrollBar
 * @library /java/awt/regtesthelpers
 * @build PassFailJFrame
 * @run main/manual bug4785160
*/

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class bug4785160 {

    static final String INSTRUCTIONS = """
         Ensure that the horizontal scrollbar is visible in the JTextArea.
         If necessary, reduce the width of the window so that the scrollbar becomes visible.
         Scroll all the way to the right so the end of the line is visible.
         If necessary, move the text caret in the text area to the end of line.
         The test PASSES if the caret is visible at the end of the line.
         The test FAILS if the caret disappears when moved to the end of the line.
    """;

    public static void main(String[] args) throws Exception {
        PassFailJFrame.builder()
            .title("bug4785160 Test Instructions")
            .instructions(INSTRUCTIONS)
            .columns(50)
            .testUI(bug4785160::createUI)
            .build()
            .awaitAndCheck();
    }

    static JFrame createUI() {
        JFrame frame = new JFrame("bug4785160");
        JTextArea area = new JTextArea();
        String s = "";
        for (int i = 0; i < 80; i++) {
             s += "m";
        }
        area.setText(s);
        area.getCaret().setDot(area.getText().length() + 1);
        frame.add(new JScrollPane(area));
        frame.setSize(300, 300);
        return frame;
    }
}