Idée originale de this answer avec une approche plus générique. En utilisant une coutume DynamicObject
comme emballage pour inspecter la valeur par réflexion il n'y avait pas besoin d'ajouter le InternalsVisibleTo
public class DynamicObjectResultValue : DynamicObject, IEquatable<DynamicObjectResultValue> {
private readonly object value;
public DynamicObjectResultValue(object value) {
this.value = value;
}
#region Operators
public static bool operator ==(DynamicObjectResultValue a, DynamicObjectResultValue b) {
// If both are null, or both are same instance, return true.
if (System.Object.ReferenceEquals(a, b)) {
return true;
}
// If one is null, but not both, return false.
if (ReferenceEquals((object)a, null) || ReferenceEquals((object)b, null)) {
return false;
}
// Return true if the fields match:
return a.value == b.value;
}
public static bool operator !=(DynamicObjectResultValue a, DynamicObjectResultValue b) {
return !(a == b);
}
#endregion
public override IEnumerable<string> GetDynamicMemberNames() {
return value.GetType().GetProperties().Select(p => p.Name);
}
public override bool TryGetMember(GetMemberBinder binder, out object result) {
//initialize value
result = null;
//Search possible matches and get its value
var property = value.GetType().GetProperty(binder.Name);
if (property != null) {
// If the property is found,
// set the value parameter and return true.
var propertyValue = property.GetValue(value, null);
result = propertyValue;
return true;
}
// Otherwise, return false.
return false;
}
public override bool Equals(object obj) {
if (obj is DynamicObjectResultValue)
return Equals(obj as DynamicObjectResultValue);
// If parameter is null return false.
if (ReferenceEquals(obj, null)) return false;
// Return true if the fields match:
return this.value == obj;
}
public bool Equals(DynamicObjectResultValue other) {
// If parameter is null return false.
if (ReferenceEquals(other, null)) return false;
// Return true if the fields match:
return this.value == other.value;
}
public override int GetHashCode() {
return ToString().GetHashCode();
}
public override string ToString() {
return string.Format("{0}", value);
}
}
En supposant que le contrôleur suivant
public class FooController : Controller {
public IActionResult GetAnonymousObject() {
var jsonResult = new {
id = 1,
name = "Foo",
type = "Bar"
};
return Ok(jsonResult);
}
public IActionResult GetAnonymousCollection() {
var jsonResult = Enumerable.Range(1, 20).Select(x => new {
id = x,
name = "Foo" + x,
type = "Bar" + x
}).ToList();
return Ok(jsonResult);
}
}
tests pourraient ressembler à
[TestMethod]
public void TestDynamicResults() {
//Arrange
var controller = new FooController();
//Act
var result = controller.GetAnonymousObject() as OkObjectResult;
//Assert
dynamic obj = new DynamicObjectResultValue(result.Value);
Assert.IsNotNull(obj);
Assert.AreEqual(1, obj.id);
Assert.AreEqual("Foo", obj.name);
Assert.AreEqual(3, obj.name.Length);
Assert.AreEqual("Bar", obj.type);
}
[TestMethod]
public void TestDynamicCollection() {
//Arrange
var controller = new FooController();
//Act
var result = controller.GetAnonymousCollection() as OkObjectResult;
//Assert
Assert.IsNotNull(result, "No ActionResult returned from action method.");
dynamic jsonCollection = result.Value;
foreach (dynamic value in jsonCollection) {
dynamic json = new DynamicObjectResultValue(value);
Assert.IsNotNull(json.id,
"JSON record does not contain \"id\" required property.");
Assert.IsNotNull(json.name,
"JSON record does not contain \"name\" required property.");
Assert.IsNotNull(json.type,
"JSON record does not contain \"type\" required property.");
}
}
http : //stackoverflow.com/questions/9956648/how-do-i-check-if-a-property-exists-on-a-dynamic-anonymous-type-in-c –