Fire value change events from Label when content changes (#12414)

Change-Id: I9656025ebde0a80c913713856f5c0374e0f92c27

1 files changed, 79 insertions, 0 deletions

diff --git a/server/tests/src/com/vaadin/tests/server/component/label/LabelListeners.java b/server/tests/src/com/vaadin/tests/server/component/label/LabelListeners.java
index 3ed79f5010..9bb4c53ba2 100644
--- a/server/tests/src/com/vaadin/tests/server/component/label/LabelListeners.java
+++ b/server/tests/src/com/vaadin/tests/server/component/label/LabelListeners.java
@@ -1,5 +1,14 @@
 package com.vaadin.tests.server.component.label;
 
+import static org.easymock.EasyMock.anyObject;
+import static org.easymock.EasyMock.createStrictMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.verify;
+
+import org.easymock.EasyMock;
+
+import com.vaadin.data.Property;
 import com.vaadin.data.Property.ValueChangeListener;
 import com.vaadin.tests.server.component.AbstractListenerMethodsTest;
 import com.vaadin.ui.Label;
@@ -10,4 +19,74 @@ public class LabelListeners extends AbstractListenerMethodsTest {
         testListenerAddGetRemove(Label.class, ValueChangeEvent.class,
                 ValueChangeListener.class);
     }
+
+    public void testValueChangeFiredWhenSettingValue() {
+        Label underTest = new Label();
+
+        // setup the mock listener
+        ValueChangeListener mockListener = createStrictMock(ValueChangeListener.class);
+        // record
+        mockListener
+                .valueChange(anyObject(com.vaadin.data.Property.ValueChangeEvent.class));
+
+        // test
+        underTest.addValueChangeListener(mockListener);
+
+        replay(mockListener);
+        underTest.setValue("A new value");
+
+        verify(mockListener);
+
+    }
+
+    public void testValueChangeFiredWhenSettingPropertyDataSource() {
+        // setup
+        Label underTest = new Label();
+
+        Property mockProperty = EasyMock.createMock(Property.class);
+
+        ValueChangeListener mockListener = createStrictMock(ValueChangeListener.class);
+        // record
+        mockListener
+                .valueChange(anyObject(com.vaadin.data.Property.ValueChangeEvent.class));
+
+        expect(mockProperty.getType()).andReturn(String.class).atLeastOnce();
+        expect(mockProperty.getValue()).andReturn("Any").atLeastOnce();
+
+        // test
+
+        replay(mockListener, mockProperty);
+        underTest.addValueChangeListener(mockListener);
+        underTest.setPropertyDataSource(mockProperty);
+
+        verify(mockListener);
+
+    }
+
+    public void testValueChangeNotFiredWhenNotSettingValue() {
+        Label underTest = new Label();
+        // setup the mock listener
+        ValueChangeListener mockListener = createStrictMock(ValueChangeListener.class);
+        // record: nothing to record
+
+        // test
+        underTest.addValueChangeListener(mockListener);
+        replay(mockListener);
+        verify(mockListener);
+    }
+
+    public void testNoValueChangeFiredWhenSettingPropertyDataSourceToNull() {
+        Label underTest = new Label();
+        // setup the mock Listener
+        ValueChangeListener mockListener = createStrictMock(ValueChangeListener.class);
+        // record: nothing to record
+
+        // test
+        underTest.addValueChangeListener(mockListener);
+        underTest.setPropertyDataSource(null);
+
+        replay(mockListener);
+        verify(mockListener);
+    }
+
 }