public void GetOptionName_Null_ShouldThrowException()
{
var parser = A.Fake <Parser>();
var commandParser = A.Fake <CommandParser <Command1Options> >(ob => ob.WithArgumentsForConstructor(() => new CommandParser <Command1Options>(parser)));
var parseResult = A.Fake <ParseResult>();
var context = new CommandValidatorContext <Command1Options>(commandParser, parseResult);
context.Invoking(a => a.GetOptionName(null))
.Should()
.Throw <ArgumentNullException>();
}
public void GetOptionName_UnmappedOption_ShouldThrowException()
{
var parser = A.Fake <Parser>();
var commandParser = A.Fake <CommandParser <Command1Options> >(ob => ob.WithArgumentsForConstructor(() => new CommandParser <Command1Options>(parser)));
var parseResult = A.Fake <ParseResult>();
var targetProperty = typeof(Command1Options).GetProperty("OptionB");
String optionName;
A.CallTo(() => commandParser.TryGetOptionName(targetProperty, out optionName))
.Returns(false);
var context = new CommandValidatorContext <Command1Options>(commandParser, parseResult);
context.Invoking(a => a.GetOptionName(b => b.OptionB))
.Should()
.Throw <ArgumentException>()
.WithMessage(@"The property OptionB of the type ParseTheArgs.Tests.TestData.Command1Options is not mapped to any option.
Parameter name: optionSelector");
}