public void MathOperationsContainer_returns_keyword_of_unary_minus_operation_by_characteristics() { var mathOperationsContainer = new MathOperationsContainer(); var operationCharacteristics = new OperationCharacteristics("-", OperationType.Unary); var keyword = mathOperationsContainer.GetKeywordOrDefault(operationCharacteristics); Assert.Equal("~", keyword); }
public void MathOperationsContainer_returns_default_keyword_for_unknown_value_and_unary() { var mathOperationsContainer = new MathOperationsContainer(); var operationCharacteristics = new OperationCharacteristics("&", OperationType.Unary); var keyword = mathOperationsContainer.GetKeywordOrDefault(operationCharacteristics); Assert.Null(keyword); }
/// <summary> /// Getting the keyword of an operation by characteristics /// </summary> /// <param name="operationCharacteristics">Characteristics of a mathematical operation</param> /// <returns>Returns the keyword of an operation or default instance</returns> public string GetKeywordOrDefault(OperationCharacteristics operationCharacteristics) { if (operationCharacteristics.Type == OperationType.Binary && ContainsOperation(operationCharacteristics.Value)) { return(operationCharacteristics.Value); } if (operationCharacteristics.Type == OperationType.Unary && operationCharacteristics.Value == "-") { return(UnaryMinusMathOperation.Keyword); } return(default(string)); }