public void ShouldThrowInvalidOperationExceptionWhenTryingToAccessValueOfFailedResult()
{
var failedResult = ValueResult <int> .Fail("some error message");
Assert.ThrowsException <InvalidOperationException>(() =>
failedResult.Value);
}
public static ValueResult <Id> Create(int value)
{
if (value <= 0)
{
return(ValueResult <Id> .Fail(
ErrorMessages.Id.IdCannotBeNonPositive));
}
return(ValueResult <Id> .Ok(new Id(value)));
}
public static ValueResult <Student> Create(string name)
{
var nameResult = NonEmptyText.Create(name);
if (nameResult.IsFailure)
{
return(ValueResult <Student> .Fail(nameResult.Error));
}
return(ValueResult <Student> .Ok(new Student(nameResult.Value)));
}
public static ValueResult <NonEmptyText> Create(string textValue)
{
if (string.IsNullOrWhiteSpace(textValue))
{
return(ValueResult <NonEmptyText> .Fail(
ErrorMessages.NonEmptyText.TextValueCannotBeEmpty));
}
return(ValueResult <NonEmptyText> .Ok(
new NonEmptyText(textValue)));
}
public static ValueResult <Student> Create(string name, int id)
{
var idResult = ValueObjects.Id.Create(id);
if (idResult.IsFailure)
{
return(ValueResult <Student> .Fail(idResult.Error));
}
var studentResult = Create(name);
if (studentResult.IsFailure)
{
return(ValueResult <Student> .Fail(studentResult.Error));
}
return(ValueResult <Student> .Ok(new Student(idResult.Value,
studentResult.Value.Name)));
}
