public async void WhenArgumentsAreValid_ThenResolverIsCalledOnceWithProperParameters()
{
// Arrange
var intelligentBillboardResolverMock = new Mock <IIntelligentBillboardResolver>();
intelligentBillboardResolverMock.Setup(r => r.ResolveAsync(It.IsAny <DateTime>(), It.IsAny <int>(), It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>()))
.ReturnsAsync(_fixture.Create <IEnumerable <IntelligentBillboardRecommendation> >());
var mapperMock = new Mock <IMapper>();
mapperMock.Setup(r => r.DomainToApplicationModel(It.IsAny <Recommendation>()))
.Returns(_fixture.Create <Models.Recommendation>());
var from = _fixture.Create <DateTime>();
var weeks = _fixture.Create <int>();
var numBigRooms = _fixture.Create <int>();
var numSmallRooms = _fixture.Create <int>();
var city = _fixture.Create <string>();
var sut = new BillboardService(intelligentBillboardResolverMock.Object, mapperMock.Object);
// Act
await sut.GetIntelligentBillboardAsync(from, weeks, numBigRooms, numSmallRooms, city);
// Assert
intelligentBillboardResolverMock.Verify(r => r.ResolveAsync(from, weeks, numBigRooms, numSmallRooms, city), Times.Once);
}
public async void WhenResolverReturnsNull_ThenMapperIsNotCalled()
{
// Arrange
var intelligentBillboardResolverMock = new Mock <IIntelligentBillboardResolver>();
intelligentBillboardResolverMock.Setup(r => r.ResolveAsync(It.IsAny <DateTime>(), It.IsAny <int>(), It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>()))
.ReturnsAsync((IEnumerable <IntelligentBillboardRecommendation>)null);
var mapperMock = new Mock <IMapper>();
mapperMock.Setup(r => r.DomainToApplicationModel(It.IsAny <Recommendation>()))
.Returns(_fixture.Create <Models.Recommendation>());
var from = _fixture.Create <DateTime>();
var weeks = _fixture.Create <int>();
var numBigRooms = _fixture.Create <int>();
var numSmallRooms = _fixture.Create <int>();
var city = _fixture.Create <string>();
var sut = new BillboardService(intelligentBillboardResolverMock.Object, mapperMock.Object);
// Act
await sut.GetIntelligentBillboardAsync(from, weeks, numBigRooms, numSmallRooms, city);
// Assert
mapperMock.Verify(r => r.DomainToApplicationModel(It.IsAny <Recommendation>()), Times.Never);
}
public void WhenNumberOfSmallRoomsArgumentIsNull_ThenArgumentNullExceptionIsThrown()
{
// Arrange
var sut = new BillboardService(null, null);
// Act
Func <Task> func = async() => await sut.GetIntelligentBillboardAsync(_fixture.Create <DateTime>(), _fixture.Create <int>(), _fixture.Create <int>(), null, _fixture.Create <string>());
// Assert
func.Should().ThrowExactly <ArgumentNullException>();
}
public void WhenCityArgumentIsNull_ThenOk()
{
// Arrange
var intelligentBillboardResolverMock = new Mock <IIntelligentBillboardResolver>();
intelligentBillboardResolverMock.Setup(r => r.ResolveAsync(It.IsAny <DateTime>(), It.IsAny <int>(), It.IsAny <int>(), It.IsAny <int>(), It.IsAny <string>()))
.ReturnsAsync(_fixture.Create <IEnumerable <IntelligentBillboardRecommendation> >());
var mapperMock = new Mock <IMapper>();
mapperMock.Setup(r => r.DomainToApplicationModel(It.IsAny <Recommendation>()))
.Returns(_fixture.Create <Models.Recommendation>());
var sut = new BillboardService(intelligentBillboardResolverMock.Object, mapperMock.Object);
// Act
Func <Task> func = async() => await sut.GetIntelligentBillboardAsync(_fixture.Create <DateTime>(), _fixture.Create <int>(), _fixture.Create <int>(), _fixture.Create <int>(), null);
// Assert
func.Should().NotThrow <Exception>();
}