/// <summary>
/// Convert the <see cref="ForcemainEquation"/> back into an inp string
/// </summary>
/// <param name="forcemainEquation">The forcemain equation that will be converted</param>
/// <exception cref="InpParseException">Throws if an inhandled
/// value is attemped to be converted</exception>
/// <returns>Returns: A valid inp string from the value of the forcemain equation</returns>
public static string ToInpString(this ForcemainEquation forcemainEquation) => forcemainEquation switch
{
public void ToInpString_ValidString_ShouldMatchValue(string expectedValue, ForcemainEquation equation) => Assert.Equal(PruneInpString(expectedValue, OptionsHeader), new ForcemainEquationOption(equation).ToInpString());
/// <summary>
/// Convert an inp <see cref="string"/> to a <see cref="ForcemainEquation"/>
/// </summary>
/// <param name="forcemainEquation">The <see cref="ForcemainEquation"/> that the extension
/// will base off of</param>
/// <param name="inpString">The <see cref="string"/> that will be converted</param>
/// <exception cref="InpParseException">
/// Thrown if an unhandled value for the string is passed
/// </exception>
/// <returns>Returns: a <see cref="ForcemainEquation"/> that corresponds to the
/// correct inp string value</returns>
public static ForcemainEquation FromInpString(this ForcemainEquation forcemainEquation,
string inpString) => inpString switch
{
"D-W" => ForcemainEquation.DarcyWeisbach,
public void ParseTests_ValidString_ShouldMatchValue(string inpString, ForcemainEquation expectedValue) => Assert.Equal(expectedValue, SetupProject(inpString).Database.GetOption <ForcemainEquationOption>().Value);
