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/*
* 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.design;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertThat;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.nodes.Node;
import org.junit.Before;
import org.junit.Test;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.TextArea;
import com.vaadin.ui.TextField;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.declarative.Design;
import com.vaadin.ui.declarative.DesignContext;
import com.vaadin.ui.declarative.DesignException;
/**
* A test for checking that parsing a layout preserves the IDs and the mapping
* from prefixes to package names (for example
* <meta name=”package-mapping” content=”my:com.addon.mypackage” />)
*
* @since
* @author Vaadin Ltd
*/
public class ParseLayoutTest {
// The context is used for accessing the created component hierarchy.
private DesignContext ctx;
@Before
public void setUp() throws Exception {
ctx = Design.read(getClass().getResourceAsStream("testFile.html"),
null);
}
@Test
public void buttonWithIdIsParsed() {
Component button = ctx.getComponentByLocalId("firstButton");
assertThat(ctx.getComponentByCaption("Native click me"), is(button));
assertThat(button.getCaption(), is("Native click me"));
}
@Test
public void buttonWithIdAndLocalIdIsParsed() {
Component button = ctx.getComponentById("secondButton");
assertThat(ctx.getComponentByCaption("Another button"), is(button));
assertThat(ctx.getComponentByLocalId("localID"), is(button));
assertThat(button.getCaption(), is("Another button"));
}
@Test
public void buttonWithoutIdsIsParsed() {
assertThat(ctx.getComponentByCaption("Yet another button"),
is(not(nullValue())));
}
@Test
public void serializationPreservesProperties() throws IOException {
ByteArrayOutputStream out = serializeDesign(ctx);
ctx = deSerializeDesign(out);
assertButtonProperties();
}
@Test
public void serializationPreservesHierarchy() throws IOException {
ByteArrayOutputStream out = serializeDesign(ctx);
ctx = deSerializeDesign(out);
assertComponentHierarchy();
}
@Test
public void designIsSerializedWithCorrectPrefixesAndPackageNames()
throws IOException {
ByteArrayOutputStream out = serializeDesign(ctx);
// Check the mapping from prefixes to package names using the html tree
String[] expectedPrefixes = { "my" };
String[] expectedPackageNames = { "com.addon.mypackage" };
int index = 0;
Document doc = Jsoup.parse(out.toString("UTF-8"));
Element head = doc.head();
for (Node child : head.childNodes()) {
if ("meta".equals(child.nodeName())) {
String name = child.attributes().get("name");
if ("package-mapping".equals(name)) {
String content = child.attributes().get("content");
String[] parts = content.split(":");
assertEquals("Unexpected prefix.", expectedPrefixes[index],
parts[0]);
assertEquals("Unexpected package name.",
expectedPackageNames[index], parts[1]);
index++;
}
}
}
assertEquals("Unexpected number of prefix - package name pairs.", 1,
index);
}
private DesignContext deSerializeDesign(ByteArrayOutputStream out) {
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
return Design.read(in, null);
}
private ByteArrayOutputStream serializeDesign(DesignContext context)
throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
Design.write(context, out);
return out;
}
private void assertButtonProperties() {
buttonWithIdAndLocalIdIsParsed();
buttonWithIdIsParsed();
buttonWithoutIdsIsParsed();
}
@Test
public void fieldsAreBoundToATemplate() throws IOException {
LayoutTemplate template = new LayoutTemplate();
InputStream htmlFile = getClass().getResourceAsStream("testFile.html");
Design.read(htmlFile, template);
assertNotNull(template.getFirstButton());
assertNotNull(template.getSecondButton());
assertNotNull(template.getYetanotherbutton());
assertNotNull(template.getClickme());
assertEquals("Native click me", template.getFirstButton().getCaption());
}
@Test(expected = DesignException.class)
public void fieldsCannotBeBoundToAnInvalidTemplate() throws IOException {
InvalidLayoutTemplate template = new InvalidLayoutTemplate();
InputStream htmlFile = getClass().getResourceAsStream("testFile.html");
Design.read(htmlFile, template);
}
@Test
public void rootHasCorrectComponents() {
Component root = ctx.getRootComponent();
VerticalLayout vlayout = (VerticalLayout) root;
assertThat(vlayout.getComponentCount(), is(3));
}
@Test
public void rootChildHasCorrectComponents() {
Component root = ctx.getRootComponent();
VerticalLayout vlayout = (VerticalLayout) root;
HorizontalLayout hlayout = (HorizontalLayout) vlayout.getComponent(0);
assertThat(hlayout.getComponentCount(), is(5));
assertThat(hlayout.getComponent(0).getCaption(), is("FooBar"));
assertThat(hlayout.getComponent(1).getCaption(), is("Native click me"));
assertThat(hlayout.getComponent(2).getCaption(), is("Another button"));
assertThat(hlayout.getComponent(3).getCaption(),
is("Yet another button"));
assertThat(hlayout.getComponent(4).getCaption(), is("Click me"));
assertThat(hlayout.getComponent(4).getWidth(), is(150f));
// Check the remaining two components of the vertical layout
assertTextField(vlayout);
assertTextArea(vlayout);
}
private void assertComponentHierarchy() {
rootHasCorrectComponents();
rootChildHasCorrectComponents();
}
private void assertTextField(VerticalLayout vlayout) {
TextField tf = (TextField) vlayout.getComponent(1);
assertThat(tf.getCaption(), is("Text input"));
}
private void assertTextArea(VerticalLayout layout) {
TextArea ta = (TextArea) layout.getComponent(2);
assertThat(ta.getCaption(), is("Text area"));
assertThat(ta.getWidth(), is(300f));
assertThat(ta.getHeight(), is(200f));
}
}
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