private MethodInvocationContext GetMethodArgs(MethodCallExpression methodExpression)
{
MethodInvocationContext context = new MethodInvocationContext();
foreach (var arg in methodExpression.Arguments)
{
switch (arg.NodeType)
{
case ExpressionType.Call:
MethodCallExpression paramCall = arg as MethodCallExpression;
// Extract the data source type
Type sourceType = ExtractDatasourceType(paramCall);
Object[] factoryArgs = ExtractDatasourceParameters(paramCall);
context.AddArgumentSource(sourceType, factoryArgs);
break;
case ExpressionType.Constant:
// Simply pop the constant into the list
ConstantExpression paramConstant = arg as ConstantExpression;
context.AddArgumentValue(paramConstant);
break;
default:
throw new ArgumentException("Unsupported argument used in method invocation list", "methodExpression");
}
}
return(context);
}
public void AddArgumentSource_AddsArgument()
{
MethodInvocationContext context = new MethodInvocationContext();
context.AddArgumentSource(typeof(RandomStringSource));
DatasourceFactory factory = context.GetArguments().First();
Assert.NotNull(factory);
}