Implement SimpleManagedLayout for CompositeConnector (#9791)

Fixes #9788 

2 files changed, 65 insertions, 0 deletions

diff --git a/uitest/src/main/java/com/vaadin/tests/components/tree/TreeOnBrowserResize.java b/uitest/src/main/java/com/vaadin/tests/components/tree/TreeOnBrowserResize.java
new file mode 100644
index 0000000000..aa55336d13
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/components/tree/TreeOnBrowserResize.java
@@ -0,0 +1,24 @@
+package com.vaadin.tests.components.tree;
+
+import com.vaadin.annotations.Widgetset;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.Tree;
+
+@Widgetset("com.vaadin.DefaultWidgetSet")
+public class TreeOnBrowserResize extends AbstractTestUI {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        Tree<String> tree = new Tree<>();
+        tree.setItems(
+                "Lorem ipsum dolor sit amet, consectetur adipiscing elit. "
+                        + "Ut a ante congue, dictum elit vitae, mollis justo. "
+                        + "Nunc porttitor, eros et eleifend accumsan, quam dolor venenatis tortor, "
+                        + "in euismod lorem massa quis nisi. In pretium viverra tincidunt. ");
+
+        tree.setSizeFull();
+        addComponent(tree);
+    }
+
+}
diff --git a/uitest/src/test/java/com/vaadin/tests/components/tree/TreeOnBrowserResizeTest.java b/uitest/src/test/java/com/vaadin/tests/components/tree/TreeOnBrowserResizeTest.java
new file mode 100644
index 0000000000..153f389850
--- /dev/null
+++ b/uitest/src/test/java/com/vaadin/tests/components/tree/TreeOnBrowserResizeTest.java
@@ -0,0 +1,41 @@
+package com.vaadin.tests.components.tree;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.openqa.selenium.Dimension;
+
+import com.vaadin.testbench.elements.TreeGridElement;
+import com.vaadin.tests.tb3.MultiBrowserTest;
+
+public class TreeOnBrowserResizeTest extends MultiBrowserTest {
+
+    @Test
+    public void testTreeSizeOnBrowserShrink() {
+        openTestURL();
+
+        int originalWidth = $(TreeGridElement.class).first().getTableWrapper()
+                .getSize().getWidth();
+
+        getDriver().manage().window().setSize(new Dimension(600, 800));
+
+        Assert.assertTrue("Tree size should decrease.",
+                originalWidth > $(TreeGridElement.class).first()
+                        .getTableWrapper().getSize().getWidth());
+    }
+
+    @Test
+    public void testTreeSizeOnBrowserEnlarge() {
+        getDriver().manage().window().setSize(new Dimension(600, 800));
+        openTestURL();
+
+        int originalWidth = $(TreeGridElement.class).first().getTableWrapper()
+                .getSize().getWidth();
+
+        getDriver().manage().window().setSize(new Dimension(800, 800));
+
+        Assert.assertTrue("Tree size should increase.",
+                originalWidth < $(TreeGridElement.class).first()
+                        .getTableWrapper().getSize().getWidth());
+    }
+
+}