public void Throw_WhenThePassedTopicIsNull()
{
//Arrange
var topicsMock = new Mock <IRepository <Topic> >();
TopicsServices topicsServices = new TopicsServices(topicsMock.Object);
//Act & Assert
Assert.Throws <ArgumentNullException>(() => topicsServices.Create(null));
}
public void ReturnNull_WhenIdParameterIsInvalid()
{
// Arrange
var topicsMock = new Mock <IRepository <Topic> >();
TopicsServices topicsServices = new TopicsServices(topicsMock.Object);
// Act
Topic topicResult = topicsServices.GetById(-1);
// Assert
Assert.IsNull(topicResult);
}
public void Invoke_TheRepositoryMethodGetAll_Once()
{
//Arrange
var topicsMock = new Mock <IRepository <Topic> >();
TopicsServices topicsServices = new TopicsServices(topicsMock.Object);
//Act
IEnumerable <Topic> topicResult = topicsServices.GetAll();
//Assert
topicsMock.Verify(c => c.All(), Times.Once);
}
public void InvokeRepositoryMethodAddOnce_WhenThePassedTopicIsValid()
{
//Arrange
var topicsMock = new Mock <IRepository <Topic> >();
TopicsServices topicsServices = new TopicsServices(topicsMock.Object);
int topicId = 2;
Topic topic = new Topic()
{
Id = topicId, Name = "Topic1"
};
//Act
topicsServices.Create(topic);
//Assert
topicsMock.Verify(x => x.Add(It.IsAny <Topic>()), Times.Once);
}
public void ReturnNull_WhenReposityMethodGetAll_ReturnsNull()
{
//Arrange
var topicsMock = new Mock <IRepository <Topic> >();
topicsMock.Setup(c => c.All()).Returns(() =>
{
return(null);
});
TopicsServices topicsServices = new TopicsServices(topicsMock.Object);
//Act
IEnumerable <Topic> topicResult = topicsServices.GetAll();
//Assert
Assert.IsNull(topicResult);
}
public void ReturnResultOfCorrectType()
{
//Arrange
var topicsMock = new Mock <IRepository <Topic> >();
topicsMock.Setup(c => c.All()).Returns(() =>
{
IEnumerable <Topic> expectedResultCollection = new List <Topic>();
return(expectedResultCollection);
});
TopicsServices topicsServices = new TopicsServices(topicsMock.Object);
//Act
IEnumerable <Topic> topicResult = topicsServices.GetAll();
//Assert
Assert.That(topicResult, Is.InstanceOf <IEnumerable <Topic> >());
}
public void ReturnResult_WhenInvokingRepositoryMethod_GetAll()
{
//Arrange
var topicsMock = new Mock <IRepository <Topic> >();
IEnumerable <Topic> expectedResultCollection = new List <Topic>();
topicsMock.Setup(c => c.All()).Returns(() =>
{
return(expectedResultCollection);
});
TopicsServices topicsServices = new TopicsServices(topicsMock.Object);
//Act
IEnumerable <Topic> topicResult = topicsServices.GetAll();
//Assert
Assert.That(topicResult, Is.EqualTo(expectedResultCollection));
}
public void ReturnTopic_WhenIdIsValid()
{
//Arrange
var topicsMock = new Mock <IRepository <Topic> >();
int topicId = 1;
Topic topic = new Topic()
{
Id = topicId, Name = "Topic1"
};
topicsMock.Setup(c => c.GetById(topicId)).Returns(topic);
TopicsServices topicsServices = new TopicsServices(topicsMock.Object);
//Act
Topic topicResult = topicsServices.GetById(topicId);
//Assert
Assert.AreSame(topic, topicResult);
}
