IT test for hidden attribute and visibility feature.

flow-tests/test-root-context/src/main/java/com/vaadin/flow/uitest/ui/template/HiddenTemplateView.java

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+/*
+ * Copyright 2000-2017 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.flow.uitest.ui.template;
+
+import com.vaadin.flow.component.Tag;
+import com.vaadin.flow.component.dependency.HtmlImport;
+import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.component.polymertemplate.EventHandler;
+import com.vaadin.flow.component.polymertemplate.Id;
+import com.vaadin.flow.component.polymertemplate.PolymerTemplate;
+import com.vaadin.flow.router.Route;
+import com.vaadin.flow.templatemodel.TemplateModel;
+import com.vaadin.flow.uitest.servlet.ViewTestLayout;
+
+@Route(value = "com.vaadin.flow.uitest.ui.template.HiddenTemplateView", layout = ViewTestLayout.class)
+@Tag("hidden-template")
+@HtmlImport("frontend://com/vaadin/flow/uitest/ui/template/HiddenTemplate.html")
+public class HiddenTemplateView extends PolymerTemplate<TemplateModel> {
+
+    @Id("child")
+    private Div div;
+
+    @EventHandler
+    private void updateVisibility() {
+        div.setVisible(!div.isVisible());
+    }
+
+}

flow-tests/test-root-context/src/test/java/com/vaadin/flow/uitest/ui/template/HiddenTemplateIT.java

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+/*
+ * Copyright 2000-2017 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.flow.uitest.ui.template;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebElement;
+
+import com.vaadin.flow.testutil.ChromeBrowserTest;
+
+public class HiddenTemplateIT extends ChromeBrowserTest {
+
+    @Test
+    public void initiallyHiddenElementStaysHidden() {
+        open();
+
+        WebElement template = findElement(By.tagName("hidden-template"));
+        WebElement child = getInShadowRoot(template, By.id("child"));
+        Assert.assertNotNull(child.getAttribute("hidden"));
+
+        WebElement visibility = getInShadowRoot(template, By.id("visibility"));
+        visibility.click();
+        Assert.assertNotNull(child.getAttribute("hidden"));
+
+        visibility.click();
+        Assert.assertNotNull(child.getAttribute("hidden"));
+    }
+
+    @Test
+    public void initiallyNotHiddenElementChangesItsVisibility() {
+        open();
+
+        WebElement template = findElement(By.tagName("hidden-template"));
+
+        WebElement hidden = getInShadowRoot(template, By.id("hidden"));
+        hidden.click();
+
+        WebElement child = getInShadowRoot(template, By.id("child"));
+        Assert.assertNull(child.getAttribute("hidden"));
+
+        WebElement visibility = getInShadowRoot(template, By.id("visibility"));
+        visibility.click();
+        Assert.assertNotNull(child.getAttribute("hidden"));
+
+        visibility.click();
+        Assert.assertNull(child.getAttribute("hidden"));
+    }
+}