test: add regression test for #35

Test that findItemByLabel returns the additional chip.

Author: javier-godoy

src/test/java/com/flowingcode/vaadin/addons/chipfield/integration/IntegrationView.java

@@ -19,7 +19,9 @@
  */
 package com.flowingcode.vaadin.addons.chipfield.integration;
 
+import java.lang.reflect.Method;
 import java.util.Arrays;
+import java.util.Optional;
 
 import com.flowingcode.vaadin.addons.chipfield.ChipField;
 import com.flowingcode.vaadin.addons.chipfield.integration.rpc.JsonArrayList;
@@ -97,4 +99,16 @@ public JsonArrayList<String> getValue() {
 		return JsonArrayList.createArray(field.getValue(), Json::create);
 	}
 
+	@Override
+	@ClientCallable
+	public boolean hasItemWithLabel(String label) {
+		try {
+			Method method = ChipField.class.getDeclaredMethod("findItemByLabel", String.class);
+			method.setAccessible(true);
+			return ((Optional<?>) method.invoke(field, label)).isPresent();
+		} catch (Exception e) {
+			throw new RuntimeException();
+		}
+	}
+
 }

src/test/java/com/flowingcode/vaadin/addons/chipfield/integration/IntegrationViewCallables.java

@@ -39,4 +39,6 @@ public interface IntegrationViewCallables {
 
 	void removeSelectedItem(String itemToRemove);
 
+	boolean hasItemWithLabel(String label);
+
 }

src/test/java/com/flowingcode/vaadin/addons/chipfield/integration/ViewIT.java

@@ -21,6 +21,7 @@
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
 
 import java.util.Arrays;
 import java.util.Collection;
@@ -184,4 +185,15 @@ public void testRemoveSelectedItem() {
 		assertThat($server.getValue(), isEqualTo(IPSUM));
 	}
 
+	/**
+	 * Test that findItemByLabel returns the additional chip
+	 *
+	 * @see https://github.com/FlowingCode/ChipFieldAddon/issues/35
+	 */
+	@Test
+	public void testFindItemByLabel() {
+		$server.useNewItemHandler(true);
+		chipfield.sendKeys(ADDITIONAL, Keys.ENTER);
+		assertTrue("Additional item was not returned by findItemByLabel", $server.hasItemWithLabel(ADDITIONAL));
+	}
 }