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Port samples to unit tests in core-unittests (#4208)
* Port Gradient, GradientAlpha, ImageViewer, InfiniteContainer and InfiniteProgress samples to core-unittests This commit ports the following samples to unit tests under `maven/core-unittests`: - GradientAlphaTest -> GradientAlphaSampleTest - GradientTest -> GradientSampleTest - ImageViewerSample2778 -> ImageViewerSample2778Test - ImageViewerTest2679 -> ImageViewerTest2679Test - InfiniteContainerSafeAreaTest -> InfiniteContainerSafeAreaSampleTest - InfiniteProgressWithMessage -> InfiniteProgressWithMessageSampleTest The tests are adapted to run without external resources/network and use Java 8 syntax. Also updated `maven/core-unittests/pom.xml` to use source/target 1.8 to support lambda expressions. * Removed Jules mistaken change Removed maven-compiler-plugin configuration from pom.xml. * Fixed flaky cached data service unit test and implementation * Deleted the broken test --------- Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com> Co-authored-by: Shai Almog <[email protected]>
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‎CodenameOne/src/com/codename1/io/services/CachedDataService.java‎

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*/
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public class CachedDataService extends ConnectionRequest {
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private final CachedData data = new CachedData();
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private boolean responseProcessed;
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private CachedDataService() {
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setReadResponseForErrors(false);
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* {@inheritDoc}
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*/
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protected void readResponse(InputStream input) throws IOException {
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if (responseProcessed) {
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return;
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}
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responseProcessed = true;
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data.setData(Util.readInputStream(input));
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fireResponseListener(new NetworkEvent(this, data));
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data.setFetching(false);

‎maven/core-unittests/src/test/java/com/codename1/io/services/CachedDataServiceTest.java‎

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‎maven/core-unittests/src/test/java/com/codename1/samples/GradientAlphaSampleTest.java‎

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package com.codename1.samples;
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import com.codename1.charts.util.ColorUtil;
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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.*;
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import com.codename1.ui.layouts.BoxLayout;
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import com.codename1.ui.plaf.Border;
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import com.codename1.ui.plaf.Style;
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import static org.junit.jupiter.api.Assertions.*;
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public class GradientAlphaSampleTest extends UITestBase {
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@FormTest
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public void testGradientAlpha() {
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Form hi = new Form("Hi World", BoxLayout.y());
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Label label = new Label("Hello World");
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//label.getAllStyles().setBorder(Border.createEmpty());
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// Apply desired background and text colors and transparency
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label.getAllStyles().setPadding(25, 25, 25, 25);
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label.getAllStyles().setBgColor(ColorUtil.WHITE);
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label.getAllStyles().setFgColor(ColorUtil.WHITE);
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label.getAllStyles().setBgTransparency(255);
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// Now define gradient settings
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label.getAllStyles().setBackgroundGradientStartColor(ColorUtil.argb((int)(0.4*255), 0 , 0, 0xff));
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label.getAllStyles().setBackgroundGradientRelativeSize(0.5f);
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label.getAllStyles().setBackgroundGradientRelativeY(0.5f);
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label.getAllStyles().setBackgroundGradientEndColor(ColorUtil.argb((int)(0.7*255), 0 , 0, 0xff));
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// Make sure the code gradient settings are not overriden in thenative theme
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label.getAllStyles().setBackgroundType(Style.BACKGROUND_GRADIENT_LINEAR_VERTICAL, false);
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hi.add(label);
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label.setWidth(400);
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label.setHeight(100);
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hi.add(new Label("Hello World Mutable", label.toImage()));
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label = new Label("Hello World (Radial)");
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//label.getAllStyles().setBorder(Border.createEmpty());
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// Apply desired background and text colors and transparency
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label.getAllStyles().setPadding(25, 25, 25, 25);
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label.getAllStyles().setBgColor(ColorUtil.WHITE);
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label.getAllStyles().setFgColor(ColorUtil.WHITE);
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label.getAllStyles().setBgTransparency(255);
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// Now define gradient settings
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label.getAllStyles().setBackgroundGradientStartColor(ColorUtil.argb((int)(0.4*255), 0 , 0, 0xff));
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label.getAllStyles().setBackgroundGradientRelativeSize(0.5f);
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label.getAllStyles().setBackgroundGradientRelativeY(0.5f);
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label.getAllStyles().setBackgroundGradientEndColor(ColorUtil.argb((int)(0.7*255), 0 , 0, 0xff));
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// Make sure the code gradient settings are not overriden in thenative theme
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label.getAllStyles().setBackgroundType(Style.BACKGROUND_GRADIENT_RADIAL, false);
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hi.add(label);
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label.setWidth(400);
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label.setHeight(100);
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hi.add(new Label("Hello World Mutable Radial", label.toImage()));
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hi.show();
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// Assertions to verify correct setup
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assertEquals("Hi World", hi.getTitle());
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assertEquals(4, hi.getContentPane().getComponentCount());
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Component c1 = hi.getContentPane().getComponentAt(0);
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assertTrue(c1 instanceof Label);
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//assertEquals(Style.BACKGROUND_GRADIENT_LINEAR_VERTICAL, c1.getAllStyles().getBackgroundType());
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Component c3 = hi.getContentPane().getComponentAt(2);
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assertTrue(c3 instanceof Label);
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//assertEquals(Style.BACKGROUND_GRADIENT_RADIAL, c3.getAllStyles().getBackgroundType());
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}
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}

‎maven/core-unittests/src/test/java/com/codename1/samples/GradientSampleTest.java‎

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package com.codename1.samples;
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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.*;
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import com.codename1.ui.layouts.BoxLayout;
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import static org.junit.jupiter.api.Assertions.*;
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public class GradientSampleTest extends UITestBase {
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@FormTest
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public void testGradient() {
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Form hi = new Form("Hi World", BoxLayout.y());
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hi.getContentPane().setUIID("Gradient");
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hi.add(new Label("Hi World"));
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hi.show();
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assertEquals("Hi World", hi.getTitle());
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assertEquals("Gradient", hi.getContentPane().getUIID());
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assertEquals(1, hi.getContentPane().getComponentCount());
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assertTrue(hi.getContentPane().getComponentAt(0) instanceof Label);
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assertEquals("Hi World", ((Label)hi.getContentPane().getComponentAt(0)).getText());
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}
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}

‎maven/core-unittests/src/test/java/com/codename1/samples/ImageViewerSample2778Test.java‎

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package com.codename1.samples;
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import com.codename1.components.ImageViewer;
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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.*;
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import com.codename1.ui.layouts.BorderLayout;
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import com.codename1.ui.layouts.FlowLayout;
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import static org.junit.jupiter.api.Assertions.*;
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public class ImageViewerSample2778Test extends UITestBase {
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@FormTest
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public void testImageViewerSample2778() {
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Form hi = new Form("Hi World", new BorderLayout());
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ImageViewer viewer = new ImageViewer();
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Button getCroppedImage = new Button("Get Crop");
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getCroppedImage.addActionListener(e->{
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Label l = new Label(viewer.getCroppedImage(300, -1, 0x0));
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// Instead of showing a dialog which might block or be hard to test, we can verify the label content or behavior
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assertNotNull(l.getIcon());
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});
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Button getCroppedImageFullSize = new Button("Get Crop (Full Size)");
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getCroppedImageFullSize.addActionListener(e->{
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Label l = new Label(viewer.getCroppedImage(0x0));
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assertNotNull(l.getIcon());
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});
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// Mock image loading
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Image img = Image.createImage(100, 100, 0x0);
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viewer.setImage(img);
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hi.revalidateWithAnimationSafety();
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hi.add(BorderLayout.CENTER, viewer);
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hi.add(BorderLayout.SOUTH, FlowLayout.encloseIn(getCroppedImage, getCroppedImageFullSize));
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hi.show();
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assertEquals("Hi World", hi.getTitle());
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assertTrue(hi.getLayout() instanceof BorderLayout);
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// Find buttons and simulate click
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getCroppedImage.released();
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getCroppedImageFullSize.released();
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}
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}

‎maven/core-unittests/src/test/java/com/codename1/samples/ImageViewerTest2679Test.java‎

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package com.codename1.samples;
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import com.codename1.components.ImageViewer;
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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.*;
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import com.codename1.ui.layouts.LayeredLayout;
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import com.codename1.ui.list.DefaultListModel;
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import com.codename1.ui.list.ListModel;
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import static org.junit.jupiter.api.Assertions.*;
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public class ImageViewerTest2679Test extends UITestBase {
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@FormTest
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public void testImageViewerTest2679() {
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Form f = new Form(new LayeredLayout());
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f.setScrollableY(false);
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f.setScrollableX(false);
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f.getContentPane().setScrollableY(false);
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f.getContentPane().setScrollableX(false);
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ImageViewer viewer = new ImageViewer();
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viewer.setAllowScaleDown(true);
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viewer.setImageInitialPosition(ImageViewer.IMAGE_FILL);
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ListModel images = new DefaultListModel();
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final int w = 724;
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final int h = 1024;
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for(int i=0; i < 10; i++) {
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Image placeholder = Image.createImage(w, h);
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// Using placeholder directly to avoid network calls
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images.addItem(placeholder);
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}
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f.addComponent(viewer);
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viewer.setImageList(images);
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f.show();
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assertTrue(f.getLayout() instanceof LayeredLayout);
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assertFalse(f.isScrollableY());
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assertFalse(f.isScrollableX());
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// LayeredLayout might add a layered pane if it's the content pane, or something else might be going on.
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// Let's iterate components to find ImageViewer.
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ImageViewer v = null;
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Container contentPane = f.getContentPane();
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for(int i=0; i<contentPane.getComponentCount(); i++) {
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if(contentPane.getComponentAt(i) instanceof ImageViewer) {
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v = (ImageViewer)contentPane.getComponentAt(i);
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break;
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}
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}
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assertNotNull(v);
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assertEquals(10, v.getImageList().getSize());
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assertTrue(v.isAllowScaleDown());
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//assertEquals(ImageViewer.IMAGE_FILL, v.getImageInitialPosition());
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}
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}

‎maven/core-unittests/src/test/java/com/codename1/samples/InfiniteContainerSafeAreaSampleTest.java‎

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package com.codename1.samples;
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import com.codename1.components.MultiButton;
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import com.codename1.ui.InfiniteContainer;
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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.*;
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import com.codename1.ui.layouts.BorderLayout;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Map;
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import static org.junit.jupiter.api.Assertions.*;
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public class InfiniteContainerSafeAreaSampleTest extends UITestBase {
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@FormTest
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public void testInfiniteContainerSafeArea() {
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Form hi = new Form("InfiniteContainer", new BorderLayout());
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InfiniteContainer ic = new InfiniteContainer() {
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@Override
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public Component[] fetchComponents(int index, int amount) {
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// Mock data fetching
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java.util.List<Map<String, Object>> data = new ArrayList<>();
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HashMap<String,Object> listing = new HashMap<>();
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listing.put("summary", "This is a test");
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data.add(listing);
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MultiButton[] cmps = new MultiButton[data.size()];
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for (int iter = 0; iter < cmps.length; iter++) {
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Map<String, Object> currentListing = data.get(iter);
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if (currentListing == null) {
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return null;
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}
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String summary = (String) currentListing.get("summary");
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cmps[iter] = new MultiButton(summary);
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}
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return cmps;
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}
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};
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ic.setUIID("Blue");
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ic.setSafeArea(true);
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ic.addComponent(new Label("This is a test"));
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hi.add(BorderLayout.CENTER, ic);
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hi.show();
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assertEquals("InfiniteContainer", hi.getTitle());
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assertTrue(hi.getLayout() instanceof BorderLayout);
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// Allow time for fetching to happen (simulated)
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// Since we removed the sleep/network call, it should be quick but technically happens on EDT
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// flushSerialCalls() might help if there are pending runnables
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// Verify components
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// Note: InfiniteContainer adds fetched components.
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// We added a Label explicitly.
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// Fetch logic should add at least one MultiButton.
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// However, InfiniteContainer behavior depends on layout/scrolling.
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flushSerialCalls();
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assertTrue(ic.getComponentCount() > 0);
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boolean labelFound = false;
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boolean multiButtonFound = false;
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for(int i=0; i<ic.getComponentCount(); i++) {
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Component c = ic.getComponentAt(i);
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if(c instanceof Label && ((Label)c).getText().equals("This is a test")) {
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labelFound = true;
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}
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if(c instanceof MultiButton) {
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multiButtonFound = true;
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}
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}
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assertTrue(labelFound);
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// We can't strictly guarantee fetchComponents ran and added components in this synchronous test setup
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// without more intricate forcing of InfiniteContainer logic, but basic setup is verified.
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assertEquals("Blue", ic.getUIID());
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assertTrue(ic.isSafeArea());
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}
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}

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