public static void TestMetaObject(DynamicMetaObject target, string methodName, object[] arguments, bool isExtension = false)
{
InvokeMemberBinder binder = new TestInvokeMemberBinder(methodName, arguments.Length);
DynamicMetaObject[] args = new DynamicMetaObject[arguments.Length];
for (int idx = 0; idx < args.Length; idx++)
{
object value = arguments[idx];
Type valueType = value != null?value.GetType() : typeof(object);
args[idx] = new DynamicMetaObject(Expression.Parameter(valueType), BindingRestrictions.Empty, value);
}
DynamicMetaObject result = target.BindInvokeMember(binder, args);
Assert.IsNotNull(result);
if (isExtension)
{
UnaryExpression expression = result.Expression as UnaryExpression;
Assert.IsNotNull(expression);
MethodCallExpression callExpression = expression.Operand as MethodCallExpression;
Assert.IsNotNull(callExpression);
Assert.IsTrue(callExpression.Method.ToString().Contains(methodName));
}
else
{
Assert.AreSame(target, result.Value);
}
}
public static void TestBindParams(DynamicMetaObject target)
{
string methodName = "ToString";
object[] arguments = new object[] { };
InvokeMemberBinder binder = new TestInvokeMemberBinder(methodName, arguments.Length);
DynamicMetaObject[] args = new DynamicMetaObject[arguments.Length];
ExceptionTestHelper.ExpectException <ArgumentNullException>(() => { var result = target.BindInvokeMember(null, args); });
ExceptionTestHelper.ExpectException <ArgumentNullException>(() => { var result = target.BindInvokeMember(binder, null); });
}
public void BindInvokeMemberTest()
{
JsonValue value = AnyInstance.AnyJsonValue1;
DynamicMetaObject target = GetJsonValueDynamicMetaObject(value);
TestInvokeMemberBinder.TestBindParams(target);
string methodName;
object[] arguments;
object result = null;
methodName = "ToString";
arguments = new object[] { };
TestInvokeMemberBinder.TestMetaObject(target, methodName, arguments);
methodName = "TryReadAs";
arguments = new object[] { typeof(int), result };
TestInvokeMemberBinder.TestMetaObject(target, methodName, arguments);
methodName = "TryReadAsType";
arguments = new object[] { typeof(Person), result };
TestInvokeMemberBinder.TestMetaObject(target, methodName, arguments, true);
}
public static void TestMetaObject(DynamicMetaObject target, string methodName, object[] arguments, bool isExtension = false)
{
InvokeMemberBinder binder = new TestInvokeMemberBinder(methodName, arguments.Length);
DynamicMetaObject[] args = new DynamicMetaObject[arguments.Length];
for (int idx = 0; idx < args.Length; idx++)
{
object value = arguments[idx];
Type valueType = value != null ? value.GetType() : typeof(object);
args[idx] = new DynamicMetaObject(Expression.Parameter(valueType), BindingRestrictions.Empty, value);
}
DynamicMetaObject result = target.BindInvokeMember(binder, args);
Assert.IsNotNull(result);
if (isExtension)
{
UnaryExpression expression = result.Expression as UnaryExpression;
Assert.IsNotNull(expression);
MethodCallExpression callExpression = expression.Operand as MethodCallExpression;
Assert.IsNotNull(callExpression);
Assert.IsTrue(callExpression.Method.ToString().Contains(methodName));
}
else
{
Assert.AreSame(target, result.Value);
}
}
public static void TestBindParams(DynamicMetaObject target)
{
string methodName = "ToString";
object[] arguments = new object[] { };
InvokeMemberBinder binder = new TestInvokeMemberBinder(methodName, arguments.Length);
DynamicMetaObject[] args = new DynamicMetaObject[arguments.Length];
ExceptionTestHelper.ExpectException<ArgumentNullException>(() => { var result = target.BindInvokeMember(null, args); });
ExceptionTestHelper.ExpectException<ArgumentNullException>(() => { var result = target.BindInvokeMember(binder, null); });
}