/// <summary>
/// Creates a new specimen based on a requested range.
/// </summary>
/// <param name="request">The request that describes what to create.</param>
/// <param name="context">A container that can be used to create other specimens.</param>
/// <returns>
/// A specimen created from a <see cref="RangedRequest"/> encapsulating the operand
/// type, the minimum and the maximum of the requested value, if possible; otherwise,
/// a <see cref="NoSpecimen"/> instance.
/// </returns>
public object Create(object request, ISpecimenContext context)
{
if (request == null)
{
return(new NoSpecimen());
}
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var rangeAttribute = TypeEnvy.GetAttribute <RangeAttribute>(request);
if (rangeAttribute == null)
{
return(new NoSpecimen());
}
var memberType = GetMemberType(rangeAttribute, request);
var rangedRequest =
new RangedRequest(
memberType,
rangeAttribute.OperandType,
rangeAttribute.Minimum,
rangeAttribute.Maximum);
return(context.Resolve(rangedRequest));
}
private static TimeSpanRange ParseTimeSpanRange(RangedRequest rangedRequest)
{
return(new TimeSpanRange
{
Min = TimeSpan.Parse((string)rangedRequest.Minimum, CultureInfo.CurrentCulture),
Max = TimeSpan.Parse((string)rangedRequest.Maximum, CultureInfo.CurrentCulture)
});
}
private static object CreateRangedTimeSpanSpecimen(RangedRequest rangedRequest, ISpecimenContext context)
{
if (!(rangedRequest.Minimum is string) || !(rangedRequest.Maximum is string))
{
return(new NoSpecimen());
}
var range = ParseTimeSpanRange(rangedRequest);
return(RandomizeTimeSpanInRange(range, context));
}