public void GetLongUrlFor_ValidCode()
{
// Arrange
var urlDto = new UrlDto
{
LongUrl = _fixture.Create <string>(),
ShortUrl = _fixture.Create <string>()
};
var mockedDal = new MockedDal(
isShortCodeStored: true,
getOriginalFor: urlDto.LongUrl);
var service = new UrlService(mockedDal.GetObject);
// Act
var response = service.GetLongUrlFor(urlDto.ShortUrl);
// Assert
response
.Should()
.BeEquivalentTo(
urlDto,
"because the same long URL is returned by the program when using its code");
}
public void GetShortUrlFor_UrlNotStored()
{
// Arrange
var urlDto = new UrlDto
{
LongUrl = $"http://{_fixture.Create<string>()}",
ShortUrl = string.Empty
};
var mockedDal = new MockedDal(
isUrlStored: false,
getShortenedUrlFor: urlDto.ShortUrl);
var service = new UrlService(mockedDal.GetObject);
// Act
service.GetShortUrlFor(urlDto.LongUrl);
// Assert
mockedDal.GetMock
.Verify(_ =>
_.GetShortenedFor(It.IsAny <string>()),
Times.Never);
mockedDal.GetMock
.Verify(_ =>
_.IsUrlStored(It.IsAny <string>()),
Times.Once);
mockedDal.GetMock
.Verify(_ =>
_.StoreShortened(It.IsAny <string>(), It.IsAny <string>()),
Times.Once);
}
public void GetShortUrlFor_Https()
{
// Arrange
var tested = $"https://{_fixture.Create<string>()}";
var mockedDal = new MockedDal();
var service = new UrlService(mockedDal.GetObject);
// Act
var actual = service.GetShortUrlFor(tested);
// Assert
actual
.LongUrl
.Should()
.Be(
tested,
"because no treatment is done on the long url provided");
actual
.ShortUrl
.Should()
.HaveLength(
UrlGeneration.GeneratedSequenceLength,
"because the shorten url should have a normalized size length");
}
public void GetLongUrlFor_NonStoredCode()
{
// Arrange
var tested = _fixture.Create <string>();
var mockedDal = new MockedDal();
var service = new UrlService(mockedDal.GetObject);
// Act
Action actionPerformed = ()
=> service.GetLongUrlFor(tested);
// Assert
actionPerformed
.Should()
.Throw <HttpRequestException>()
.WithMessage(
ExceptionMessages.UnknownShortUrl,
"because requesting a non-existing code should raise an exception");
}
public void GetLongUrlFor_EmptyCode()
{
// Arrange
var tested = string.Empty;
var mockedDal = new MockedDal();
var service = new UrlService(mockedDal.GetObject);
// Act
Action actionPerformed = ()
=> service.GetLongUrlFor(tested);
// Assert
actionPerformed
.Should()
.Throw <HttpRequestException>()
.WithMessage(
ExceptionMessages.BadUrlProvided,
"because no empty url should be accepted");
}
public void GetShortUrlFor_UrlAlreadyStored()
{
// Arrange
var urlDto = new UrlDto
{
LongUrl = $"http://{_fixture.Create<string>()}",
ShortUrl = _fixture.Create <string>()
};
var mockedDal = new MockedDal(
isUrlStored: true,
getShortenedUrlFor: urlDto.ShortUrl);
var service = new UrlService(mockedDal.GetObject);
// Act
var response = service.GetShortUrlFor(urlDto.LongUrl);
// Assert
response
.Should()
.BeEquivalentTo(
urlDto,
"because the fetched values should match the original ones");
mockedDal.GetMock
.Verify(_ =>
_.GetShortenedFor(It.IsAny <string>()),
Times.Once);
mockedDal.GetMock
.Verify(_ =>
_.IsUrlStored(It.IsAny <string>()),
Times.Once);
mockedDal.GetMock
.Verify(_ =>
_.StoreShortened(It.IsAny <string>(), It.IsAny <string>()),
Times.Never);
}
