Test for streaming reconnect issue (#13435)

Change-Id: Ibf04105a1ffe2c22726d628a0aba4668569d45d2

uitest/src/com/vaadin/tests/push/StreamingReconnectWhilePushing.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2000-2013 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.push;
+
+import com.vaadin.annotations.Push;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.shared.ui.ui.Transport;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.Button.ClickEvent;
+import com.vaadin.ui.Label;
+
+@Push(transport = Transport.STREAMING)
+public class StreamingReconnectWhilePushing extends AbstractTestUI {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+
+        Button button = new Button("Click Me");
+        button.addClickListener(new Button.ClickListener() {
+            private Label label;
+
+            @Override
+            public void buttonClick(ClickEvent event) {
+                if (label == null) {
+                    label = new Label();
+                    label.setValue(getString(1000000));
+                    addComponent(label);
+                } else {
+                    label.setValue("." + label.getValue());
+                }
+
+            }
+        });
+        addComponent(button);
+
+    }
+
+    protected String getString(int len) {
+        StringBuilder b = new StringBuilder();
+        for (int i = 0; i < len; i++) {
+            if (i % 100 == 0) {
+                b.append("\n");
+            } else {
+                b.append('A');
+            }
+
+        }
+        return b.toString();
+    }
+
+    @Override
+    protected String getTestDescription() {
+        return "Each push of the button sends about 1MB to the client. Press it a couple of times and a spinner will appear forever if reconnecting does not work.";
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        return 13435;
+    }
+
+}