public object GetValue(ArgumentInfo argumentInfo)
{
PromptForValue(argumentInfo);
//when user has provided a value
if (argumentInfo.ValueInfo.HasValue && argumentInfo.ValueInfo.Value != null)
{
//parse value
IParser parser = ParserFactory.CreateInstnace(argumentInfo.Type);
return(parser.Parse(argumentInfo));
}
//when value not present but method parameter has a default value defined
if (argumentInfo.DefaultValue != DBNull.Value && argumentInfo.DefaultValue != null)
{
//use default paramter or property value
return(argumentInfo.DefaultValue);
}
//when there no value from inut and no default value, return default value of the type
return(argumentInfo.Type.GetDefaultValue());
}
public void CanWorkWithStrings()
{
ParserFactory.CreateInstnace(typeof(string)).Should().BeOfType <SingleValueParser>();
ParserFactory.CreateInstnace(typeof(List <string>)).Should().BeOfType <ListParser>();
}
public void CanWorkWithEnums()
{
ParserFactory.CreateInstnace(typeof(Time)).Should().BeOfType <SingleValueParser>();
ParserFactory.CreateInstnace(typeof(Time?)).Should().BeOfType <NullableValueParser>();
ParserFactory.CreateInstnace(typeof(List <Time>)).Should().BeOfType <ListParser>();
}
public void CanCreateListParser()
{
IParser parser = ParserFactory.CreateInstnace(typeof(List <int>));
parser.Should().BeOfType <ListParser>();
}
public void CanCreateSingleValueParser()
{
IParser parser = ParserFactory.CreateInstnace(typeof(int));
parser.Should().BeOfType <SingleValueParser>();
}
public void CanCreateNullableParser()
{
IParser parser = ParserFactory.CreateInstnace(typeof(int?));
parser.Should().BeOfType <NullableValueParser>();
}
