public void GetAllNames_ReturnsAnEmptyList_WhenThereAreNoCountries()
{
// Arrange
var countries = new List <Country>().AsQueryable();
var countryMockDbSet = new Mock <DbSet <Country> >();
countryMockDbSet.As <IQueryable <Country> >().Setup(m => m.Provider).Returns(countries.Provider);
countryMockDbSet.As <IQueryable <Country> >().Setup(m => m.Expression).Returns(countries.Expression);
countryMockDbSet.As <IQueryable <Country> >().Setup(m => m.ElementType).Returns(countries.ElementType);
countryMockDbSet.As <IQueryable <Country> >().Setup(m => m.GetEnumerator()).Returns(countries.GetEnumerator());
var mockContext = new Mock <EazyCartContext>();
mockContext.Setup(c => c.Countries).Returns(countryMockDbSet.Object);
var countryBusiness = new CountryBusiness(mockContext.Object);
// Act
var allCountryNames = countryBusiness.GetAllNames();
// Assert
int expectedCount = 0;
Assert.AreEqual(expectedCount, allCountryNames.Count, "List of all country names is not empty");
}
public void GetAllNames_ReturnsACorrectListOfCountryNames_WhenNotEmpty()
{
// Arrange
var countries = new List <Country>
{
new Country {
Name = "TestCountry1", Id = 1
},
new Country {
Name = "TestCountry2", Id = 2
},
new Country {
Name = "TestCountry3", Id = 3
},
}.AsQueryable();
var countryMockDbSet = new Mock <DbSet <Country> >();
countryMockDbSet.As <IQueryable <Country> >().Setup(m => m.Provider).Returns(countries.Provider);
countryMockDbSet.As <IQueryable <Country> >().Setup(m => m.Expression).Returns(countries.Expression);
countryMockDbSet.As <IQueryable <Country> >().Setup(m => m.ElementType).Returns(countries.ElementType);
countryMockDbSet.As <IQueryable <Country> >().Setup(m => m.GetEnumerator()).Returns(countries.GetEnumerator());
var mockContext = new Mock <EazyCartContext>();
mockContext.Setup(c => c.Countries).Returns(countryMockDbSet.Object);
var countryBusiness = new CountryBusiness(mockContext.Object);
// Act
var allCountryNames = countryBusiness.GetAllNames();
// Assert
string expectedFirstCountryName = "TestCountry1";
string expectedSecondCountryName = "TestCountry2";
string expectedThirdCountryName = "TestCountry3";
Assert.AreEqual(expectedFirstCountryName, allCountryNames[0], "First names do not match.");
Assert.AreEqual(expectedSecondCountryName, allCountryNames[1], "Second names do not match.");
Assert.AreEqual(expectedThirdCountryName, allCountryNames[2], "Third names do not match");
}