public void ParseExpressionAcceptsDefaultParameterDictionary()
{
var parameters = new Dictionary <string, double> {
{ "Dummy", 123 }, { "Yummy", 456 }
};
var compiledFunction = Сalc.ParseExpression("Dummy+Yummy", parameters).Compile();
Assert.Equal(579d, compiledFunction());
}
public void ParseFunctionProducesExpressionWithParameters()
{
var compiledFunction = Сalc.ParseFunction("Dummy+Yummy").Compile();
var parameters = new Dictionary <string, double> {
{ "Dummy", 2 }, { "Yummy", 3 }
};
Assert.Equal(5d, compiledFunction(parameters));
}
public void OverriddenParseExpressionMethodStillWorks()
{
Assert.Equal(0d, Сalc.ParseExpression("0").Compile()());
Assert.Equal(System.Math.E, Сalc.ParseExpression("E").Compile()());
}
public void ParseExpressionAcceptsDefaultParameterAnonymousClass()
{
var compiledFunction = Сalc.ParseExpression("Dummy+Yummy", new { Dummy = 123, Yummy = 456 }).Compile();
Assert.Equal(579d, compiledFunction());
}
public void ParseExpressionAcceptsDefaultParameterExpressions()
{
var compiledFunction = Сalc.ParseExpression("Dummy+Yummy", Dummy => 123, Yummy => 456).Compile();
Assert.Equal(579d, compiledFunction());
}
public void GetParameterExpressionSupportsSystemMathConstantsAndCustomVariables()
{
Assert.Equal(System.Math.PI, Сalc.GetParameterExpression("PI").Execute());
Assert.Equal(System.Math.E, Сalc.GetParameterExpression("E").Execute());
Assert.Equal("Parameters.get_Item(\"Dummy\")", Сalc.GetParameterExpression("Dummy").ToString());
}
public void CallFunctionSupportsRegisteredFunctionsAsWellAsSystemMathFunctions()
{
Assert.Equal(2d, Сalc.CallFunction("Min", Expression.Constant(2d), Expression.Constant(3d)).Execute()); // System.Math.Min
Assert.Equal(1d, Сalc.CallFunction("Min", Expression.Constant(2d), Expression.Constant(3d), Expression.Constant(1d)).Execute()); // custom Min
Assert.Throws <ParseException>(() => Сalc.CallFunction("Mul", Expression.Constant(0d)));
}
public void MangleNameProducesMangledFunctionName()
{
Assert.Equal(":0", Сalc.MangleName(null, 0));
Assert.Equal("MySine:2", Сalc.MangleName("MySine", 2));
}
