public void Add_ThrowsArgumentException_WhenCityWithSuchIdAlreadyExists() { // Arrange var countries = new List <Country> { new Country { Name = "TestCountry1", Id = 1 } }.AsQueryable(); var cities = new List <City> { new City { Name = "TestCity1", Id = 1, CountryId = 1 }, }.AsQueryable(); var mockDbCountrySet = new Mock <DbSet <Country> >(); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.Provider).Returns(countries.Provider); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.Expression).Returns(countries.Expression); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.ElementType).Returns(countries.ElementType); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.GetEnumerator()).Returns(countries.GetEnumerator()); var mockDbCitySet = new Mock <DbSet <City> >(); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.Provider).Returns(cities.Provider); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.Expression).Returns(cities.Expression); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.ElementType).Returns(cities.ElementType); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.GetEnumerator()).Returns(cities.GetEnumerator()); var mockContext = new Mock <EazyCartContext>(); mockContext.Setup(c => c.Cities).Returns(mockDbCitySet.Object); mockContext.Setup(c => c.SaveChanges()).Throws(new Exception()); mockContext.Setup(c => c.Countries).Returns(mockDbCountrySet.Object); var cityBusiness = new CityBusiness(mockContext.Object); int duplicateId = 1; // Act & Assert try { cityBusiness.Add("TestCity1", duplicateId, "TestCountry1"); cityBusiness.Add("TestCity2", duplicateId, "TestCountry1"); Assert.Fail("No exception was thrown"); } catch (ArgumentException ex) { string expectedMessage = string.Format($"City with ID {duplicateId} already exists."); Assert.AreEqual(expectedMessage, ex.Message, "Wrong exception was thrown."); } }
public void Add_ThrowsArgumentException_WhenCountryDoesNotExist() { // Arrange var countries = new List <Country> { new Country { Name = "TestCountry1", Id = 1 } }.AsQueryable(); var cities = new List <City> { new City { Name = "TestCity1", Id = 1, CountryId = 1 } }.AsQueryable(); var mockDbCountrySet = new Mock <DbSet <Country> >(); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.Provider).Returns(countries.Provider); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.Expression).Returns(countries.Expression); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.ElementType).Returns(countries.ElementType); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.GetEnumerator()).Returns(countries.GetEnumerator()); var mockDbCitySet = new Mock <DbSet <City> >(); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.Provider).Returns(cities.Provider); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.Expression).Returns(cities.Expression); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.ElementType).Returns(cities.ElementType); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.GetEnumerator()).Returns(cities.GetEnumerator()); var mockContext = new Mock <EazyCartContext>(); mockContext.Setup(c => c.Cities).Returns(mockDbCitySet.Object); mockContext.Setup(c => c.Countries).Returns(mockDbCountrySet.Object); var cityBusiness = new CityBusiness(mockContext.Object); // Act & Assert try { cityBusiness.Add("TestCity1", 1, "InvalidCountry"); Assert.Fail("No exception was thrown"); } catch (ArgumentException ex) { string expectedMessage = string.Format("Such country does not exist."); Assert.AreEqual(expectedMessage, ex.Message, "Wrong exception was thrown."); } }
public void Add_SuccessfullyAddsCity_WhenIdIsNotDuplicate() { // Arrange var countries = new List <Country> { new Country { Name = "TestCountry1", Id = 1 } }.AsQueryable(); var cities = new List <City>().AsQueryable(); var mockDbCountrySet = new Mock <DbSet <Country> >(); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.Provider).Returns(countries.Provider); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.Expression).Returns(countries.Expression); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.ElementType).Returns(countries.ElementType); mockDbCountrySet.As <IQueryable <Country> >().Setup(m => m.GetEnumerator()).Returns(countries.GetEnumerator()); var mockDbCitySet = new Mock <DbSet <City> >(); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.Provider).Returns(cities.Provider); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.Expression).Returns(cities.Expression); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.ElementType).Returns(cities.ElementType); mockDbCitySet.As <IQueryable <City> >().Setup(m => m.GetEnumerator()).Returns(cities.GetEnumerator()); var mockContext = new Mock <EazyCartContext>(); mockContext.Setup(c => c.Cities).Returns(mockDbCitySet.Object); mockContext.Setup(c => c.Countries).Returns(mockDbCountrySet.Object); var cityBusiness = new CityBusiness(mockContext.Object); // Act cityBusiness.Add("TestCity1", 1, "TestCountry1"); // Assert mockDbCitySet.Verify(m => m.Add(It.IsAny <City>()), Times.Once()); mockContext.Verify(m => m.SaveChanges(), Times.Once()); }