public void ConvertFrom_WithInvalidCharacters(string value, NumberSystem numberSystem)
{
// arrange
// act - assert
Assert.ThrowsAny <Exception>(() => NumberConversionStrategy.ConvertFrom(value, numberSystem));
}
public void GetNumberSystemErrorMessage(NumberSystem numberSystem)
{
// arrange
// act
var result = NumberConversionStrategy.GetNumberSystemErrorMessage(numberSystem);
// assert
Assert.Contains(numberSystem.ToString(), result);
}
public void ConvertTo_WithValidValues(int value, NumberSystem numberSystem, string expectedResult)
{
// arrange
// act
var result = NumberConversionStrategy.ConvertTo(value, numberSystem);
// assert
Assert.Equal(expectedResult, result);
}
public void Convert()
{
try
{
ErrorMessage = null;
if (string.IsNullOrEmpty(EntryValue))
{
throw new FormatException();
}
var valueAsInt = NumberConversionStrategy.ConvertFrom(EntryValue, EntryNumberSystem);
ResultValue = NumberConversionStrategy.ConvertTo(valueAsInt, ResultNumberSystem);
}
catch
{
ErrorMessage = NumberConversionStrategy.GetNumberSystemErrorMessage(EntryNumberSystem);
}
}
