package com.vaadin.v7.data.fieldgroup;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.core.Is.is;
import static org.hamcrest.core.IsNull.nullValue;
import static org.mockito.Mockito.mock;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import com.vaadin.v7.data.Property;
import com.vaadin.v7.data.Property.Transactional;
import com.vaadin.v7.data.util.BeanItem;
import com.vaadin.v7.data.util.TransactionalPropertyWrapper;
import com.vaadin.v7.ui.Field;
import com.vaadin.v7.ui.TextField;
public class FieldGroupTest {
private FieldGroup sut;
private Field field;
@Before
public void setup() {
sut = new FieldGroup();
field = mock(Field.class);
}
@Test
public void fieldIsBound() {
sut.bind(field, "foobar");
assertThat(sut.getField("foobar"), is(field));
}
@Test(expected = FieldGroup.BindException.class)
public void cannotBindToAlreadyBoundProperty() {
sut.bind(field, "foobar");
sut.bind(mock(Field.class), "foobar");
}
@Test(expected = FieldGroup.BindException.class)
public void cannotBindNullField() {
sut.bind(null, "foobar");
}
public void canUnbindWithoutItem() {
sut.bind(field, "foobar");
sut.unbind(field);
assertThat(sut.getField("foobar"), is(nullValue()));
}
@Test
public void wrapInTransactionalProperty_provideCustomImpl_customTransactionalWrapperIsUsed() {
Bean bean = new Bean();
FieldGroup group = new FieldGroup() {
@Override
protected <T> Transactional<T> wrapInTransactionalProperty(
Property<T> itemProperty) {
return new TransactionalPropertyImpl(itemProperty);
}
};
group.setItemDataSource(new BeanItem<Bean>(bean));
TextField field = new TextField();
group.bind(field, "name");
Property propertyDataSource = field.getPropertyDataSource();
Assert.assertTrue(
"Custom implementation of transactional property "
+ "has not been used",
propertyDataSource instanceof TransactionalPropertyImpl);
}
public static class TransactionalPropertyImpl<T>
extends TransactionalPropertyWrapper<T> {
public TransactionalPropertyImpl(Property<T> wrappedProperty) {
super(wrappedProperty);
}
}
public static class Bean {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
}