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package com.vaadin.v7.tests.data.converter;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import org.junit.Test;
import com.vaadin.v7.data.util.converter.Converter;
import com.vaadin.v7.data.util.converter.Converter.ConversionException;
import com.vaadin.v7.data.util.converter.ReverseConverter;
import com.vaadin.v7.data.util.converter.StringToByteConverter;
public class StringToByteConverterTest {
StringToByteConverter converter = new StringToByteConverter();
Converter<Byte, String> reverseConverter = new ReverseConverter<Byte, String>(
converter);
@Test
public void testNullConversion() {
assertEquals("Null value was converted incorrectly", null,
converter.convertToModel(null, Byte.class, null));
}
@Test
public void testReverseNullConversion() {
assertEquals("Null value reversely was converted incorrectly", null,
reverseConverter.convertToModel(null, String.class, null));
}
@Test
public void testEmptyStringConversion() {
assertEquals("Empty value was converted incorrectly", null,
converter.convertToModel("", Byte.class, null));
}
@Test
public void testValueConversion() {
assertEquals("Byte value was converted incorrectly",
Byte.valueOf((byte) 10),
converter.convertToModel("10", Byte.class, null));
}
@Test
public void testReverseValueConversion() {
assertEquals("Byte value reversely was converted incorrectly",
reverseConverter.convertToModel((byte) 10, String.class, null),
"10");
}
@Test
public void testExtremeByteValueConversion() {
byte b = converter.convertToModel("127", Byte.class, null);
assertEquals(Byte.MAX_VALUE, b);
b = converter.convertToModel("-128", Byte.class, null);
assertEquals("Min byte value was converted incorrectly", Byte.MIN_VALUE,
b);
}
@Test
public void testValueOutOfRange() {
Double[] values = { Byte.MAX_VALUE * 2.0, Byte.MIN_VALUE * 2.0,
Long.MAX_VALUE * 2.0, Long.MIN_VALUE * 2.0 };
boolean accepted = false;
for (Number value : values) {
try {
converter.convertToModel(String.format("%.0f", value),
Byte.class, null);
accepted = true;
} catch (ConversionException expected) {
}
}
assertFalse("Accepted value outside range of int", accepted);
}
}
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