public void GetOperatorEvalStrategy_GivenOperator_ReturnsOperatorEvalStrategy(Operators @operator, Type type)
{
// Arrange
Operators expectedOperator = @operator;
Type expectedType = type;
OperatorEvalStrategyFactory sut = new OperatorEvalStrategyFactory();
// Act
IOperatorEvalStrategy actual = sut.GetOperatorEvalStrategy(expectedOperator);
// Assert
actual.Should().NotBeNull().And.BeOfType(expectedType);
}
public void GetOperatorEvalStrategy_GivenUnknownOperator_ThrowsNotSupportedException()
{
// Arrange
Operators expectedOperator = (Operators)(-1);
OperatorEvalStrategyFactory sut = new OperatorEvalStrategyFactory();
// Act
NotSupportedException notSupportedException = Assert.Throws <NotSupportedException>(() => sut.GetOperatorEvalStrategy(expectedOperator));
// Assert
notSupportedException.Should().NotBeNull();
notSupportedException.Message.Should().Be("Operator evaluation is not supported for operator '-1'.");
}