public static void Constructor___Should_return_an_object_that_is_assignable_to_ISpecimenBuilder___When_object_is_constructed()
{
// Arrange, Act
var systemUnderTest = new RandomEnumSequenceGenerator();
// Assert
systemUnderTest.Should().BeAssignableTo <ISpecimenBuilder>();
}
public static void Create___Should_not_throw___When_called_with_null_container()
{
// Arrange
var systemUnderTest = new RandomEnumSequenceGenerator();
var dummyRequest = new object();
// Act
var ex = Record.Exception(() => systemUnderTest.Create(dummyRequest, null));
// Assert
ex.Should().BeNull();
}
public static void Create___Should_returns_an_enum_of_the_same_type_as_request___When_request_is_for_an_enum()
{
// Arrange
var dummyContainer = new DummySpecimenContext();
var systemUnderTest = new RandomEnumSequenceGenerator();
var request = typeof(Number);
// Act
var actualResult = systemUnderTest.Create(request, dummyContainer);
// Assert
actualResult.Should().BeOfType <Number>();
}
public static void Create___Should_returns_an_object_equal_to_NoSpecimen___When_called_with_null_request()
{
// Arrange
var dummyContainer = new DummySpecimenContext();
var systemUnderTest = new RandomEnumSequenceGenerator();
var expectedResult = new NoSpecimen();
// Act
var actualResult = systemUnderTest.Create(null, dummyContainer);
// Assert
actualResult.Should().Be(expectedResult);
}
public static void Create___Should_return_random_enum_values___When_multiple_requests_are_made_for_enum()
{
// Arrange
var dummyContainer = new DummySpecimenContext();
var systemUnderTest = new RandomEnumSequenceGenerator();
var request = typeof(Number);
var enumValuesCount = Enum.GetValues(typeof(Number)).Length;
var enumValuesInOrder = Enum.GetValues(typeof(Number)).Cast <Number>();
// Act
var actualResult = Enumerable.Range(1, enumValuesCount).Select(_ => systemUnderTest.Create(request, dummyContainer)).Cast <Number>().ToList();
// Assert
actualResult.Should().NotEqual(enumValuesInOrder);
}
public static void Create___Should_return_all_enum_values_at_least_once___When_many_requests_are_made_for_an_enum()
{
// Arrange
var dummyContainer = new DummySpecimenContext();
var systemUnderTest = new RandomEnumSequenceGenerator();
var request = typeof(Number);
var allEnumValues = Enum.GetValues(request).Cast <Number>();
// Act
var actualResult = Enumerable.Range(1, 1000).Select(_ => systemUnderTest.Create(request, dummyContainer)).Cast <Number>().ToList();
// Assert
foreach (var number in allEnumValues)
{
actualResult.Should().Contain(number);
}
}
