public void ErrorsChanged_Invoked()
{
// Arrange
var senderList = new List <object>();
var propertyList = new List <string>();
var model = new BaseModelTestImplementation();
model.ErrorsChanged += (sender,
args) =>
{
if (sender != null)
{
senderList.Add(sender);
}
if (args?.PropertyName != null)
{
propertyList.Add(args.PropertyName);
}
};
// Act
model.FakeError = true;
model.FakeError = false;
// Assert
Assert.AreEqual(2, senderList.Count);
Assert.AreSame(model, senderList[0]);
Assert.AreSame(model, senderList[1]);
Assert.AreEqual(2, propertyList.Count);
Assert.AreEqual(nameof(BaseModelTestImplementation.FakeError), propertyList[0]);
Assert.AreEqual(nameof(BaseModelTestImplementation.FakeError), propertyList[1]);
}
public void SetValidationErrors_ArgumentNullException_PropertyName()
{
// Arrange
var model = new BaseModelTestImplementation();
// Act & Assert
Assert.Throws <ArgumentNullException>(() => model.InvokeSetValidationErrorsWithPropertyNameNull());
}
public void NoValidationErrorsWithoutExplicitValidation()
{
// Arrange
var model = new BaseModelTestImplementation();
// Act
var hasErrors = model.HasErrors;
// Assert
Assert.IsFalse(hasErrors);
}
public void HasErrors_CorrectResult(bool fakeError, bool expectedHasErrorsState)
{
// Arrange
var model = new BaseModelTestImplementation {
FakeError = fakeError
};
// Act
var hasErrors = model.HasErrors;
// Assert
Assert.AreEqual(expectedHasErrorsState, hasErrors);
}
public void GetErrors_EmptyListIfNoPropertyNameIsProvided(string propertyName)
{
// Arrange
var model = new BaseModelTestImplementation {
FakeError = true
};
// Act
var errors = model.GetErrors(propertyName);
// Assert
Assert.IsNotNull(errors);
Assert.AreEqual(0, errors.OfType <string>().Count());
}
public void GetErrors_FilledErrorCollection()
{
// Arrange
var model = new BaseModelTestImplementation {
FakeError = true
};
// Act
var errors = model.GetErrors(nameof(BaseModelTestImplementation.FakeError));
// Assert
Assert.IsNotNull(errors);
var errorArray = errors.OfType <string>().ToArray();
Assert.AreEqual(2, errorArray.Length);
Assert.AreEqual("Error1", errorArray[0]);
Assert.AreEqual("Error2", errorArray[1]);
}
public void PropertyChanged_Invoked()
{
// Arrange
object invokedSender = null;
string invokedProperty = null;
var model = new BaseModelTestImplementation();
model.PropertyChanged += (sender,
args) =>
{
invokedSender = sender;
invokedProperty = args?.PropertyName;
};
// Act
model.FakeError = true;
// Assert
Assert.IsNotNull(invokedSender);
Assert.AreSame(model, invokedSender);
Assert.IsNotNull(invokedProperty);
Assert.AreEqual(nameof(BaseModelTestImplementation.FakeError), invokedProperty);
}