Prevent field from updating when removing text change listener. (#16270)

Change-Id: I65c598ae71414550eb648fabf6e94fb1dabbef97

2 files changed, 56 insertions, 0 deletions

diff --git a/uitest/src/com/vaadin/tests/components/textfield/RemoveTextChangeListener.java b/uitest/src/com/vaadin/tests/components/textfield/RemoveTextChangeListener.java
new file mode 100644
index 0000000000..339160e6ff
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/components/textfield/RemoveTextChangeListener.java
@@ -0,0 +1,32 @@
+package com.vaadin.tests.components.textfield;
+
+import com.vaadin.event.FieldEvents;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.TextField;
+
+public class RemoveTextChangeListener extends AbstractTestUI {
+    @Override
+    protected void setup(VaadinRequest request) {
+        final TextField textfield = new TextField();
+
+        textfield.addTextChangeListener(new FieldEvents.TextChangeListener() {
+            @Override
+            public void textChange(FieldEvents.TextChangeEvent event) {
+                textfield.removeTextChangeListener(this);
+            }
+        });
+
+        addComponent(textfield);
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        return 16270;
+    }
+
+    @Override
+    protected String getTestDescription() {
+        return "Removing text change listener on text change event should not reset the input.";
+    }
+}
diff --git a/uitest/src/com/vaadin/tests/components/textfield/RemoveTextChangeListenerTest.java b/uitest/src/com/vaadin/tests/components/textfield/RemoveTextChangeListenerTest.java
new file mode 100644
index 0000000000..0b876864bc
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/components/textfield/RemoveTextChangeListenerTest.java
@@ -0,0 +1,24 @@
+package com.vaadin.tests.components.textfield;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+import org.junit.Test;
+
+import com.vaadin.testbench.elements.TextFieldElement;
+import com.vaadin.tests.tb3.MultiBrowserTest;
+
+public class RemoveTextChangeListenerTest extends MultiBrowserTest {
+
+    @Test
+    public void serverValueIsUpdated() {
+        openTestURL();
+
+        TextFieldElement textfield = $(TextFieldElement.class).first();
+
+        textfield.sendKeys("f");
+
+        assertThat(textfield.getValue(), is("f"));
+    }
+
+}
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