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/*
* Copyright 2000-2018 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.junit.Assert.assertEquals;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Iterator;
import org.junit.Ignore;
import org.junit.Test;
import com.vaadin.ui.Button;
import com.vaadin.ui.Component;
import com.vaadin.ui.HasComponents;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Panel;
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;
public class DesignTest {
@Test
public void readStream() throws FileNotFoundException {
Component root = Design.read(getClass()
.getResourceAsStream("verticallayout-two-children.html"));
VerticalLayout rootLayout = (VerticalLayout) root;
assertEquals(VerticalLayout.class, root.getClass());
assertEquals(2, rootLayout.getComponentCount());
assertEquals(TextField.class, rootLayout.getComponent(0).getClass());
assertEquals(Button.class, rootLayout.getComponent(1).getClass());
}
@Test(expected = DesignException.class)
@Ignore("Feature needs to be fixed")
public void readWithIncorrectRoot() throws FileNotFoundException {
Design.read(
getClass().getResourceAsStream("verticallayout-one-child.html"),
new Panel());
}
public static class MyVerticalLayout extends VerticalLayout {
}
@Test
public void readWithSubClassRoot() throws FileNotFoundException {
Design.read(
getClass().getResourceAsStream("verticallayout-one-child.html"),
new MyVerticalLayout());
}
@Test
public void writeComponentToStream() throws IOException {
HorizontalLayout root = new HorizontalLayout(new Button("OK"),
new Button("Cancel"));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Design.write(root, baos);
Component newRoot = Design
.read(new ByteArrayInputStream(baos.toByteArray()));
assertHierarchyEquals(root, newRoot);
}
@Test
public void writeDesignContextToStream() throws IOException {
DesignContext dc = Design.read(getClass()
.getResourceAsStream("verticallayout-two-children.html"), null);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Design.write(dc, baos);
Component newRoot = Design
.read(new ByteArrayInputStream(baos.toByteArray()));
assertHierarchyEquals(dc.getRootComponent(), newRoot);
}
@Test(expected = DesignException.class)
public void testDuplicateIds() throws FileNotFoundException {
Design.read(getClass().getResourceAsStream("duplicate-ids.html"));
}
@Test(expected = DesignException.class)
public void testDuplicateLocalIds() throws FileNotFoundException {
Design.read(getClass().getResourceAsStream("duplicate-local-ids.html"));
}
private void assertHierarchyEquals(Component expected, Component actual) {
if (expected.getClass() != actual.getClass()) {
throw new AssertionError(
"Component classes do not match. Expected: "
+ expected.getClass().getName() + ", was: "
+ actual.getClass().getName());
}
if (expected instanceof HasComponents) {
HasComponents expectedHC = (HasComponents) expected;
HasComponents actualHC = (HasComponents) actual;
Iterator<Component> eI = expectedHC.iterator();
Iterator<Component> aI = actualHC.iterator();
while (eI.hasNext()) {
assertHierarchyEquals(eI.next(), aI.next());
}
}
}
}
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