test: split testSelectByText into different test cases

Author: javier-godoy

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

@@ -61,11 +61,15 @@ private Matcher<Collection<String>> isEqualTo(String... values) {
 	}
 
 	@Test
-	public void testSelectByText() {
+	public void testSelectOneByText() {
 		chipfield.selectByText(LOREM);
 		assertThat(chipfield.getValue(), isEqualTo(LOREM));
 		assertThat($server.getValue(), isEqualTo(LOREM));
+	}
 
+	@Test
+	public void testSelectTwoByText() {
+		chipfield.selectByText(LOREM);
 		chipfield.selectByText(IPSUM);
 		assertThat(chipfield.getValue(), isEqualTo(LOREM, IPSUM));
 		assertThat($server.getValue(), isEqualTo(LOREM, IPSUM));
@@ -79,6 +83,19 @@ public void testSelectByText() {
 		assertThat($server.getValue(), Matchers.empty());
     }
 
+	@Test
+	public void testBackspace() {
+		$server.setValue(LOREM, IPSUM);
+
+		chipfield.sendKeys(Keys.BACK_SPACE);
+		assertThat(chipfield.getValue(), isEqualTo(LOREM));
+		assertThat($server.getValue(), isEqualTo(LOREM));
+
+		chipfield.sendKeys(Keys.BACK_SPACE);
+		assertThat(chipfield.getValue(), Matchers.empty());
+		assertThat($server.getValue(), Matchers.empty());
+	}
+
 	@Test
 	public void testAdditionalItemWithNoHandler() {
 		$server.allowAdditionalItems(true);