public void TestAddConstant()
{
ConstantRegistry registry = new ConstantRegistry(false);
registry.RegisterConstant("test", 42.0);
ConstantInfo functionInfo = registry.GetConstantInfo("test");
Assert.IsNotNull(functionInfo);
Assert.AreEqual("test", functionInfo.ConstantName);
Assert.AreEqual(42.0, functionInfo.Value);
}
/// <summary>
/// Verify a collection of variables to ensure that all the variable names are valid.
/// Users are not allowed to overwrite reserved variables or use function names as variables.
/// If an invalid variable is detected an exception is thrown.
/// </summary>
/// <param name="variables">The colletion of variables that must be verified.</param>
internal void VerifyVariableNames(IDictionary <string, ExecutionResult> variables)
{
foreach (string variableName in variables.Keys)
{
if (ConstantRegistry.IsConstantName(variableName) && !ConstantRegistry.GetConstantInfo(variableName).IsOverWritable)
{
throw new ArgumentException(string.Format("The name \"{0}\" is a reservered variable name that cannot be overwritten.", variableName), "variables");
}
if (FunctionRegistry.IsFunctionName(variableName))
{
throw new ArgumentException(string.Format("The name \"{0}\" is a function name. Parameters cannot have this name.", variableName), "variables");
}
}
}