public void ShouldReturnNullStringForNullValue()
{
object converted = new NullValueConverter().Convert(null, null, null, null);
Assert.IsInstanceOfType(converted, typeof(string));
Assert.AreEqual <string>(NullValueConverter.NullString, (string)converted);
}
public void ShouldConvertBackProvidedValue()
{
object converted = new NullValueConverter().ConvertBack("test", null, null, null);
Assert.IsInstanceOfType(converted, typeof(string));
Assert.AreEqual <string>("test", (string)converted);
}
public void ShouldConvertNullToParameterValue()
{
object converted = new NullValueConverter().Convert(null, null, "<null>", null);
Assert.IsInstanceOfType(converted, typeof(string));
Assert.AreEqual("<null>", converted);
}
public void ShouldSetValueToSourceAdapterWhenSettingValue()
{
var converter = new NullValueConverter();
var sourceAdapter = new ValueAdapter();
var adapter = new ConvertingAdapter(sourceAdapter, converter);
adapter.SetValue(5);
Assert.AreEqual(5, sourceAdapter.Value);
}
public void ShouldGetValueFromSourceAdapterWhenGettingValue()
{
var converter = new NullValueConverter();
var sourceAdapter = new ValueAdapter {
Value = 5
};
var adapter = new ConvertingAdapter(sourceAdapter, converter);
object actualValue = adapter.GetValue();
Assert.AreEqual(5, actualValue);
}
public void ShouldConvertBackNullString()
{
object converted = new NullValueConverter().ConvertBack(NullValueConverter.NullString, null, null, null);
Assert.IsNull(converted);
}
public void ShouldConvertBackEmptyString()
{
object converted = new NullValueConverter().ConvertBack(string.Empty, null, null, null);
Assert.IsNull(converted);
}
public void SetUp()
{
_typeDescriptorContextStub = MockRepository.GenerateStub <ITypeDescriptorContext>();
_nullValueConverter = NullValueConverter.Instance;
}
