Fail if a Window is attached to something else than a UI (#10374)

Change-Id: Ibe0fcbda1222e2aa781ae14f479fbedd99715ff9

1 files changed, 44 insertions, 0 deletions

diff --git a/server/tests/src/com/vaadin/tests/server/component/window/WindowAttach.java b/server/tests/src/com/vaadin/tests/server/component/window/WindowAttach.java
new file mode 100644
index 0000000000..a0f4a1d52d
--- /dev/null
+++ b/server/tests/src/com/vaadin/tests/server/component/window/WindowAttach.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2012 Vaadin Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.tests.server.component.window;
+
+import org.junit.Test;
+
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.ui.UI;
+import com.vaadin.ui.VerticalLayout;
+import com.vaadin.ui.Window;
+
+public class WindowAttach {
+
+    private static class MyUI extends UI {
+        @Override
+        protected void init(VaadinRequest request) {
+        }
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testAttachUsingSetContent() {
+        UI ui = new MyUI();
+        ui.setContent(new Window("foo"));
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testAddToLayout() {
+        VerticalLayout vl = new VerticalLayout();
+        vl.addComponent(new Window("foo"));
+    }
+}