public void ShouldReturnTaskWithResultNull_WhenItemIsNotFound()
{
var mockDbSet = new Mock <DbSet <IDbModel> >();
var mockDbContext = new Mock <IWhenItsDoneDbContext>();
mockDbContext.Setup(mock => mock.Set <IDbModel>()).Returns(mockDbSet.Object);
var asyncGenericRepositoryInstace = new GenericAsyncRepository <IDbModel>(mockDbContext.Object);
mockDbSet.Setup(mock => mock.Find(It.IsAny <int>())).Returns <IDbModel>(null);
var validId = 42;
var actualReturnedModel = asyncGenericRepositoryInstace.GetByIdAsync(validId);
Assert.That(actualReturnedModel.Result, Is.Null);
}
public async Task ShouldInvokeDbSetFindMethodWithCorrectIdParameter_WhenParametersAreValid()
{
var mockDbSet = new Mock <DbSet <IDbModel> >();
var mockDbContext = new Mock <IWhenItsDoneDbContext>();
mockDbContext.Setup(mock => mock.Set <IDbModel>()).Returns(mockDbSet.Object);
var asyncGenericRepositoryInstace = new GenericAsyncRepository <IDbModel>(mockDbContext.Object);
mockDbSet.Setup(mock => mock.Find(It.IsAny <int>())).Returns <IDbModel>(null);
var validId = 42;
await asyncGenericRepositoryInstace.GetByIdAsync(validId);
mockDbSet.Verify(mock => mock.Find(validId), Times.Once());
}
public void ThrowArgumentExceptionWithCorrectMessage_WhenIdParameterValueIsNegative()
{
var mockDbSet = new Mock <DbSet <IDbModel> >();
var mockDbContext = new Mock <IWhenItsDoneDbContext>();
mockDbContext.Setup(mock => mock.Set <IDbModel>()).Returns(mockDbSet.Object);
var asyncGenericRepositoryInstace = new GenericAsyncRepository <IDbModel>(mockDbContext.Object);
mockDbSet.Setup(mock => mock.Find(It.IsAny <int>())).Returns <IDbModel>(null);
var invalidId = -42;
Assert.That(
() => asyncGenericRepositoryInstace.GetByIdAsync(invalidId),
Throws.InstanceOf <ArgumentException>().With.Message.Contains("Id must be a positive integer."));
}
public void ShouldReturnTaskOfCorrectStatus_WhenItemIsFound()
{
var mockDbSet = new Mock <DbSet <IDbModel> >();
var mockDbContext = new Mock <IWhenItsDoneDbContext>();
mockDbContext.Setup(mock => mock.Set <IDbModel>()).Returns(mockDbSet.Object);
var asyncGenericRepositoryInstace = new GenericAsyncRepository <IDbModel>(mockDbContext.Object);
var fakeDbModel = new Mock <IDbModel>();
mockDbSet.Setup(mock => mock.Find(It.IsAny <int>())).Returns(fakeDbModel.Object);
var validId = 42;
var actualReturnedModel = asyncGenericRepositoryInstace.GetByIdAsync(validId);
Assert.That(actualReturnedModel.Status, Is.EqualTo(TaskStatus.Running).Or.EqualTo(TaskStatus.WaitingToRun).Or.EqualTo(TaskStatus.RanToCompletion));
}
public void ShouldReturnTaskOfCorrectType_WhenItemIsFound()
{
var mockDbSet = new Mock <DbSet <IDbModel> >();
var mockDbContext = new Mock <IWhenItsDoneDbContext>();
mockDbContext.Setup(mock => mock.Set <IDbModel>()).Returns(mockDbSet.Object);
var asyncGenericRepositoryInstace = new GenericAsyncRepository <IDbModel>(mockDbContext.Object);
var fakeDbModel = new Mock <IDbModel>();
mockDbSet.Setup(mock => mock.Find(It.IsAny <int>())).Returns(fakeDbModel.Object);
var validId = 42;
var actualReturnedModel = asyncGenericRepositoryInstace.GetByIdAsync(validId);
Assert.That(actualReturnedModel.GetType(), Is.EqualTo(typeof(Task <IDbModel>)));
}
