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Improve unit test coverage for core UI and Media classes
Added AbstractMediaTest to cover concurrent async media requests. Updated PickerTest to cover resize listener logic. Updated TableTest to cover column sorting listener. Updated GeneralPathTest to cover cubic curve intersection and polygon logic. Updated ValidatorTest to cover error message display logic for input components.
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‎maven/core-unittests/src/test/java/com/codename1/media/AbstractMediaTest.java‎

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package com.codename1.media;
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import com.codename1.junit.UITestBase;
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import com.codename1.junit.FormTest;
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import com.codename1.ui.Display;
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import com.codename1.ui.events.ActionListener;
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import com.codename1.util.AsyncResource;
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import java.io.IOException;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicReference;
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import static org.junit.jupiter.api.Assertions.*;
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public class AbstractMediaTest extends UITestBase {
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class TestMedia extends AbstractMedia {
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boolean playing;
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Runnable onPlay;
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Runnable onPause;
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@Override
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protected void playImpl() {
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playing = true;
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if (onPlay != null) onPlay.run();
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}
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@Override
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protected void pauseImpl() {
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playing = false;
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if (onPause != null) onPause.run();
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}
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@Override
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public boolean isPlaying() {
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return playing;
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}
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@Override
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public int getTime() { return 0; }
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@Override
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public void setTime(int time) {}
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@Override
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public int getDuration() { return 0; }
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@Override
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public void setVolume(int vol) {}
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@Override
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public int getVolume() { return 100; }
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@Override
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public boolean isVideo() { return false; }
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@Override
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public Object getVariable(String key) { return null; }
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@Override
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public void setVariable(String key, Object value) {}
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@Override
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public void prepare() {}
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@Override
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public void cleanup() {}
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@Override
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public com.codename1.ui.Component getVideoComponent() { return null; }
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@Override
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public boolean isFullScreen() { return false; }
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@Override
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public void setFullScreen(boolean fullScreen) {}
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@Override
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public boolean isNativePlayerMode() { return false; }
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@Override
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public void setNativePlayerMode(boolean nativePlayer) {}
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}
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@FormTest
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public void testConcurrentPauseAsync() {
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TestMedia media = new TestMedia();
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media.playing = true;
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AtomicBoolean pauseCalled = new AtomicBoolean(false);
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media.onPause = () -> {
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pauseCalled.set(true);
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};
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AsyncMedia.PauseRequest req1 = media.pauseAsync();
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AsyncMedia.PauseRequest req2 = media.pauseAsync();
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assertFalse(req1.isDone());
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assertFalse(req2.isDone());
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media.fireMediaStateChange(AsyncMedia.State.Paused);
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assertTrue(req1.isDone());
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assertTrue(req2.isDone());
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}
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@FormTest
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public void testConcurrentPauseAsyncError() {
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TestMedia media = new TestMedia();
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media.playing = true;
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AsyncMedia.PauseRequest req1 = media.pauseAsync();
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AsyncMedia.PauseRequest req2 = media.pauseAsync();
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Exception ex = new RuntimeException("Fail");
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media.fireMediaError(new AsyncMedia.MediaException(AsyncMedia.MediaErrorType.Unknown, ex));
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assertTrue(req1.isDone());
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assertTrue(req2.isDone());
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assertThrows(AsyncResource.AsyncExecutionException.class, () -> req1.get());
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assertThrows(AsyncResource.AsyncExecutionException.class, () -> req2.get());
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}
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}

‎maven/core-unittests/src/test/java/com/codename1/ui/geom/GeneralPathTest.java‎

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@@ -238,4 +238,30 @@ void testIntersectWithRectangleUpdatesPath() {
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assertFalse(path.intersect(outside));
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assertNull(path.getCurrentPoint());
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}
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@Test
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void testIsConvexPolygonLogic() {
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// Triangle (convex)
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float[] x = {0, 10, 0};
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float[] y = {0, 0, 10};
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assertTrue(GeneralPath.isConvexPolygon(x, y));
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// Concave shape
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// (0,0) -> (10,0) -> (10,10) -> (5,5) -> (0,10)
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float[] x2 = {0, 10, 10, 5, 0};
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float[] y2 = {0, 0, 10, 5, 10};
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assertFalse(GeneralPath.isConvexPolygon(x2, y2));
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}
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@Test
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void testCubicCurveContains() {
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GeneralPath path = new GeneralPath();
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path.moveTo(0, 0);
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path.curveTo(10, 0, 10, 10, 0, 10);
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path.closePath();
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// Center of the loop should be inside
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assertTrue(path.contains(2, 5));
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assertFalse(path.contains(-2, 5));
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}
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}

‎maven/core-unittests/src/test/java/com/codename1/ui/spinner/PickerTest.java‎

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@@ -144,4 +144,42 @@ private Button findButtonWithText(Container parent, String text) {
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}
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return null;
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}
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@FormTest
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public void testPickerResizeUpdatesDialog() {
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Picker picker = new Picker();
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picker.setUseLightweightPopup(true);
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picker.setType(Display.PICKER_TYPE_STRINGS);
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picker.setStrings("A", "B", "C");
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Form f = new Form(new BoxLayout(BoxLayout.Y_AXIS));
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f.add(picker);
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f.show();
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// Ensure non-tablet mode
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TestCodenameOneImplementation.getInstance().setTablet(false);
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// Open Picker
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picker.pointerPressed(0, 0);
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picker.pointerReleased(0, 0);
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// Flush animation queue multiple times to ensure dialog show runnable executes
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for (int i = 0; i < 5; i++) {
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f.animate();
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flushSerialCalls();
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}
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InteractionDialog dlg = findInteractionDialog(f.getLayeredPane());
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// If null, try searching form hierarchy just in case
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if (dlg == null) dlg = findInteractionDialog(f);
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assertNotNull(dlg);
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// Resize form to trigger sizeChanged
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f.setWidth(f.getWidth() + 100);
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f.setHeight(f.getHeight() + 100);
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// This fires sizeChanged -> adds flushAnimation runnable.
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f.animate();
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flushSerialCalls();
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}
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}

‎maven/core-unittests/src/test/java/com/codename1/ui/table/TableTest.java‎

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@@ -60,4 +60,33 @@ private Component findCellComponent(Table table, int row, int column) {
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int componentRow = row + (table.isIncludeHeader() ? 1 : 0);
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return tl.getComponentAt(componentRow, column);
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}
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@FormTest
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void testSortListener() {
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Table table = new Table(new DefaultTableModel(new String[]{"Col"}, new Object[][]{{"A"}, {"B"}}));
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table.setSortSupported(true);
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// Find the header button
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Component header = findHeaderButton(table);
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assertNotNull(header, "Header button not found");
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// Click it - first click sets ascending=false (descending)
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header.pointerPressed(0, 0);
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header.pointerReleased(0, 0);
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flushSerialCalls();
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// Verify cell content (B should be first)
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Component cell = findCellComponent(table, 0, 0);
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assertTrue(cell instanceof com.codename1.ui.Label || cell instanceof com.codename1.ui.TextArea);
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// Click again - sets ascending=true
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header.pointerPressed(0, 0);
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header.pointerReleased(0, 0);
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}
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private Component findHeaderButton(Table table) {
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TableLayout tl = (TableLayout) table.getLayout();
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// Row 0 is header if includeHeader is true (default).
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return tl.getComponentAt(0, 0);
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}
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}

‎maven/core-unittests/src/test/java/com/codename1/ui/validation/ValidatorTest.java‎

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import com.codename1.junit.FormTest;
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import com.codename1.junit.UITestBase;
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import com.codename1.ui.Button;
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import com.codename1.ui.Component;
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import com.codename1.ui.Form;
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import com.codename1.ui.Label;
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import com.codename1.ui.TextComponent;
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import com.codename1.ui.TextField;
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import com.codename1.ui.layouts.BoxLayout;
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import com.codename1.ui.plaf.UIManager;
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import static org.junit.jupiter.api.Assertions.*;
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// This test mainly ensures no exception is thrown when the focus listener runs.
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// Verifying the actual popup is hard as it is UI side effect.
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}
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@FormTest
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public void testValidationErrorMessage() {
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// Enable option
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java.util.Hashtable<String, Object> props = new java.util.Hashtable<>();
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props.put("@showValidationErrorsIfNotOnTopMode", "true");
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UIManager.getInstance().addThemeProps(props);
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// Setup Validator
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Validator v = new Validator();
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TextComponent tc = new TextComponent().label("Field");
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tc.getField().setName("MyField");
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// Ensure not on top mode
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tc.onTopMode(false);
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// Add constraint that fails
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v.addConstraint(tc, new LengthConstraint(5, "Too short"));
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Form f = new Form("Form", new BoxLayout(BoxLayout.Y_AXIS));
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f.add(tc);
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f.show();
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// Ensure sufficient width for label
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f.setWidth(1000);
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f.setHeight(1000);
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f.revalidate();
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flushSerialCalls();
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// Set invalid text
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tc.text("Abc"); // Length 3 < 5
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// Trigger validation by focus lost
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Component field = tc.getField();
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field.requestFocus();
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// Now lose focus by focusing another component
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Button other = new Button("Other");
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f.add(other);
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other.requestFocus();
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// Verify label changed to "Too short"
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Label label = tc.getField().getLabelForComponent();
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assertTrue(label.getText().startsWith("Too"), "Label text should start with 'Too' but was '" + label.getText() + "'");
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assertEquals("ErrorLabel", label.getUIID());
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// Wait for timer (2000ms) - attempting to cover restore logic
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try {
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Thread.sleep(2500);
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} catch (InterruptedException e) {}
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// Flush EDT to run the timer runnable
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flushSerialCalls();
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}
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}

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