private static void MakeTupleWithNArgs(int n)
{
var createGeneric = typeof(Tuple).GetMethods().Where(m => m.Name == "Create" && m.GetGenericArguments().Length == n).First();
Assert.IsNotNull(createGeneric);
var createMethod = createGeneric.MakeGenericMethod(Enumerable.Range(0, n).Select(i => typeof(int)).ToArray());
Assert.IsNotNull(createMethod);
var i1 = Expression.Constant(10);
var i2 = Expression.Constant(20);
var args = Enumerable.Range(0, n).Select(i => Expression.Constant(i * 10)).ToArray();
var methodExpr = Expression.Call(null, createMethod, args);
Assert.IsNotNull(methodExpr);
var t = new CreateTupleExpressionTransformer();
var r = t.Transform(methodExpr);
Assert.IsInstanceOfType(r, typeof(NewExpression), "expression type");
var ne = r as NewExpression;
Assert.AreEqual(n, ne.Arguments.Count, "# of arguments to the new expression");
Assert.IsTrue(args.Zip(ne.Arguments, (f, s) => f == s).All(ty => true), "args are the same");
Assert.AreEqual(string.Format("Tuple`{0}", n), ne.Type.Name);
var ga = ne.Type.GetGenericArguments();
Assert.AreEqual(n, ga.Length, "# of generic arguments to the type");
Assert.IsTrue(ga.All(ty => ty == typeof(int)), "all type ");
}
private static void MakeTupleWithNArgs(int n)
{
var createGeneric = typeof(Tuple).GetMethods().Where(m => m.Name == "Create" && m.GetGenericArguments().Length == n).First();
Assert.IsNotNull(createGeneric);
var createMethod = createGeneric.MakeGenericMethod(Enumerable.Range(0, n).Select(i => typeof(int)).ToArray());
Assert.IsNotNull(createMethod);
var i1 = Expression.Constant(10);
var i2 = Expression.Constant(20);
var args = Enumerable.Range(0, n).Select(i => Expression.Constant(i * 10)).ToArray();
var methodExpr = Expression.Call(null, createMethod, args);
Assert.IsNotNull(methodExpr);
var t = new CreateTupleExpressionTransformer();
var r = t.Transform(methodExpr);
Assert.IsInstanceOfType(r, typeof(NewExpression), "expression type");
var ne = r as NewExpression;
Assert.AreEqual(n, ne.Arguments.Count, "# of arguments to the new expression");
Assert.IsTrue(args.Zip(ne.Arguments, (f, s) => f == s).All(ty => true), "args are the same");
Assert.AreEqual(string.Format("Tuple`{0}", n), ne.Type.Name);
var ga = ne.Type.GetGenericArguments();
Assert.AreEqual(n, ga.Length, "# of generic arguments to the type");
Assert.IsTrue(ga.All(ty => ty == typeof(int)), "all type ");
}
