test/jdk/java/awt/Focus/MinimizeNonfocusableWindowTest.java

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/*
 * @test
 * @bug 6399659
 * @summary   When minimizing non-focusable window focus shouldn't jump out of the focused window.
 * @library /java/awt/regtesthelpers
 * @build PassFailJFrame
 * @run main/manual MinimizeNonfocusableWindowTest
*/

import java.awt.Frame;
import java.awt.Window;
import java.util.List;

public class MinimizeNonfocusableWindowTest {

    private static final String INSTRUCTIONS = """

             You should see three frames: Frame-1, Frame-2 and Unfocusable.

             1. Click Frame-1 to make it focused window, then click Frame-2.
                Minimize Unfocusable frame with the mouse. If Frame-2 is still
                the focused window continue testing, otherwise press FAIL.

             2. Restore Unfocusable frame to normal state. Try to resize by dragging
                its edge with left mouse button. It should be resizable. If not press
                FAIL. Try the same with right mouse button. It shouldn't resize.
                If it does, press FAIL, otherwise press PASS.""";

    public static void main(String[] args) throws Exception {
        PassFailJFrame.builder()
                .title("MinimizeNonfocusableWindowTest Instructions")
                .instructions(INSTRUCTIONS)
                .rows((int) INSTRUCTIONS.lines().count() + 1)
                .columns(40)
                .testUI(MinimizeNonfocusableWindowTest::createTestUI)
                .build()
                .awaitAndCheck();
    }

    private static List<Window> createTestUI() {
        Frame frame1 = new Frame("Frame-1");
        Frame frame2 = new Frame("Frame-2");
        Frame frame3 = new Frame("Unfocusable");
        frame1.setBounds(100, 0, 200, 100);
        frame2.setBounds(100, 150, 200, 100);
        frame3.setBounds(100, 300, 200, 100);

        frame3.setFocusableWindowState(false);

        return List.of(frame1, frame2, frame3);
    }
}