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package com.vaadin.v7.tests.data.converter;
import static org.junit.Assert.assertEquals;
import java.util.Locale;
import org.junit.Before;
import org.junit.Test;
import com.vaadin.tests.data.bean.AnotherTestEnum;
import com.vaadin.tests.data.bean.TestEnum;
import com.vaadin.v7.data.util.ObjectProperty;
import com.vaadin.v7.data.util.converter.Converter;
import com.vaadin.v7.data.util.converter.ReverseConverter;
import com.vaadin.v7.ui.TextField;
public class AnyEnumToStringConverterTest {
public class AnyEnumToStringConverter implements Converter<Enum, String> {
public AnyEnumToStringConverter() {
}
@Override
public String convertToModel(Enum value,
Class<? extends String> targetType, Locale locale)
throws ConversionException {
if (value == null) {
return null;
}
return value.toString();
}
@Override
public Enum convertToPresentation(String value,
Class<? extends Enum> targetType, Locale locale)
throws ConversionException {
if (value == null) {
return null;
}
for (Enum e : targetType.getEnumConstants()) {
if (e.toString().equals(value)) {
return e;
}
}
return null;
}
@Override
public Class<String> getModelType() {
return String.class;
}
@Override
public Class<Enum> getPresentationType() {
return Enum.class;
}
}
private AnyEnumToStringConverter converter;
@Before
public void setup() {
converter = new AnyEnumToStringConverter();
}
@Test
public void nullConversion() {
assertEquals(null, converter.convertToModel(null, null, null));
}
@Test
public void enumToStringConversion() {
assertEquals(TestEnum.TWO.toString(),
converter.convertToModel(TestEnum.TWO, String.class, null));
assertEquals(AnotherTestEnum.TWO.toString(), converter
.convertToModel(AnotherTestEnum.TWO, String.class, null));
}
@Test
public void stringToEnumConversion() {
assertEquals(TestEnum.TWO, converter.convertToPresentation(
TestEnum.TWO.toString(), TestEnum.class, null));
assertEquals(AnotherTestEnum.TWO, converter.convertToPresentation(
AnotherTestEnum.TWO.toString(), AnotherTestEnum.class, null));
}
@Test
public void stringToEnumWithField() {
TextField tf = new TextField();
tf.setConverter(new ReverseConverter(converter));
tf.setPropertyDataSource(new ObjectProperty(AnotherTestEnum.TWO));
assertEquals(AnotherTestEnum.TWO.toString(), tf.getValue());
tf.setValue(AnotherTestEnum.ONE.toString());
assertEquals(AnotherTestEnum.ONE.toString(), tf.getValue());
assertEquals(AnotherTestEnum.ONE, tf.getConvertedValue());
assertEquals(AnotherTestEnum.ONE,
tf.getPropertyDataSource().getValue());
tf.setPropertyDataSource(new ObjectProperty(TestEnum.TWO));
assertEquals(TestEnum.TWO.toString(), tf.getValue());
tf.setValue(TestEnum.ONE.toString());
assertEquals(TestEnum.ONE.toString(), tf.getValue());
assertEquals(TestEnum.ONE, tf.getConvertedValue());
assertEquals(TestEnum.ONE, tf.getPropertyDataSource().getValue());
}
}
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