Implement focus handing in RadioButtonGroup and CheckboxGroup (#10440)

Fixes #10429

* implement focus handing in RadioButtonGroup, fixes #10429

* Merge branch 'master' of https://github.com/vaadin/framework into radiobuttongroup-focus

* merge

* Merge branch 'master' of https://github.com/vaadin/framework into radiobuttongroup-focus

* fix initial focus handling also on CheckBoxGroup and add tests

* add license headers

* Merge branch 'master' of https://github.com/vaadin/framework into radiobuttongroup-focus

* changed client to use lambdas and refactored focus testing to parent class

* made FocusTest abstract

* Merge branch 'master' of https://github.com/vaadin/framework into radiobuttongroup-focus

* don't allow focusing on disabled items & refactor focusing first item

1 files changed, 47 insertions, 0 deletions

diff --git a/uitest/src/test/java/com/vaadin/tests/components/FocusTest.java b/uitest/src/test/java/com/vaadin/tests/components/FocusTest.java
new file mode 100755
index 0000000000..ae7f5301d2
--- /dev/null
+++ b/uitest/src/test/java/com/vaadin/tests/components/FocusTest.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2000-2016 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.components;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.List;
+
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebElement;
+import org.openqa.selenium.remote.DesiredCapabilities;
+
+import com.vaadin.testbench.TestBenchElement;
+import com.vaadin.tests.tb3.MultiBrowserTest;
+
+public abstract class FocusTest extends MultiBrowserTest {
+
+    protected boolean isFocusInsideElement(TestBenchElement element) {
+        WebElement focused = getFocusedElement();
+        assertNotNull(focused);
+        String id = focused.getAttribute("id");
+        assertTrue("Focused element should have a non-empty id",
+                id != null && !"".equals(id));
+        return element.isElementPresent(By.id(id));
+    }
+
+    @Override
+    public List<DesiredCapabilities> getBrowsersToTest() {
+        // Focus does not move when expected with Selenium/TB and Firefox 45
+        return getBrowsersExcludingFirefox();
+    }
+
+}