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package com.vaadin.data;
import com.vaadin.tests.data.bean.BeanToValidate;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class UnbindTest
extends BinderTestBase<Binder<BeanToValidate>, BeanToValidate> {
@Before
public void setUp() {
binder = new BeanValidationBinder<>(BeanToValidate.class);
item = new BeanToValidate();
item.setFirstname("Johannes");
item.setAge(32);
}
@Test
public void binding_unbind_shouldBeRemovedFromBindings() {
Binder.Binding<BeanToValidate, String> firstnameBinding = binder
.bind(nameField, "firstname");
Assert.assertEquals(1, binder.getBindings().size());
firstnameBinding.unbind();
Assert.assertTrue(binder.getBindings().isEmpty());
Assert.assertNull(firstnameBinding.getField());
}
@Test
public void binding_unbindDuringReadBean_shouldBeRemovedFromBindings() {
Binder.Binding<BeanToValidate, String> firstnameBinding = binder
.bind(nameField, "firstname");
Binder.Binding<BeanToValidate, String> ageBinding = binder
.bind(ageField, "age");
Assert.assertEquals(2, binder.getBindings().size());
nameField.addValueChangeListener(event -> {
if (event.getValue().length() > 0)
ageBinding.unbind();
});
binder.readBean(item);
Assert.assertEquals(1, binder.getBindings().size());
Assert.assertNull(ageBinding.getField());
}
@Test
public void binding_unbindTwice_shouldBeRemovedFromBindings() {
Binder.Binding<BeanToValidate, String> firstnameBinding = binder
.bind(nameField, "firstname");
Assert.assertEquals(1, binder.getBindings().size());
firstnameBinding.unbind();
firstnameBinding.unbind();
Assert.assertTrue(binder.getBindings().isEmpty());
Assert.assertNull(firstnameBinding.getField());
}
}
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