package com.vaadin.tests.data.converter;

import static org.junit.Assert.assertEquals;

import java.math.BigDecimal;
import java.util.Locale;

import org.junit.Test;

import com.vaadin.data.Result;
import com.vaadin.data.ValueContext;
import com.vaadin.data.converter.StringToBigDecimalConverter;

public class StringToBigDecimalConverterTest
        extends AbstractStringConverterTest {

    @Override
    protected StringToBigDecimalConverter getConverter() {
        return new StringToBigDecimalConverter(getErrorMessage());
    }

    @Test
    public void testValueParsing() {
        Result<BigDecimal> converted = getConverter().convertToModel("10",
                new ValueContext());
        BigDecimal expected = new BigDecimal(10);
        assertValue(expected, converted);
    }

    @Test
    public void testValueFormatting() {
        BigDecimal bd = new BigDecimal(12.5);
        String expected = "12,5";

        String converted = getConverter().convertToPresentation(bd,
                new ValueContext(Locale.GERMAN));
        assertEquals(expected, converted);
    }

    @Test
    public void customEmptyValue() {
        StringToBigDecimalConverter converter = new StringToBigDecimalConverter(
                BigDecimal.ZERO, getErrorMessage());

        assertValue(BigDecimal.ZERO,
                converter.convertToModel("", new ValueContext()));
        assertEquals("0", converter.convertToPresentation(BigDecimal.ZERO,
                new ValueContext()));
    }
}