public async Task CreateShortUrlAsync_NonHttpUrl_ReturnsError(ShortenerService sut)
{
// When
var result = await sut.CreateShortUrlAsync("ftp://ftp.shouldfail.com/");
// Then
Assert.IsNull(result.Item1);
Assert.IsNotEmpty(result.Item2);
}
public async Task CreateShortUrlAsync_ExistingLongUrl_ReturnsSameShortCode(
string fakeShortCode,
[Frozen] Mock <IShortenUrlRepository> mockShortUrlRepository,
ShortenerService sut)
{
// Given
mockShortUrlRepository.Setup(m => m.FindShortCode(It.IsAny <string>()))
.Returns(fakeShortCode);
// When
var result = await sut.CreateShortUrlAsync("http://www.google.com/");
// Then
Assert.AreEqual(result.Item1, fakeShortCode); // shortcode result
Assert.IsNull(result.Item2); // error should be null
}
public async Task CreateShortUrlAsync_ValidLongUrl_ReturnsNewShortCode(
[Frozen] Mock <IShortenUrlRepository> mockShortUrlRepository,
ShortenerService sut)
{
// Given
mockShortUrlRepository.Setup(m => m.FindShortCode(It.IsAny <string>()))
.Returns(string.Empty);
// When
var result = await sut.CreateShortUrlAsync("http://www.google.com/");
// Then
mockShortUrlRepository.Verify(m => m.SaveAsync(result.Item1, It.IsAny <string>()));
Assert.IsNotEmpty(result.Item1); // shortcode result
Assert.IsNull(result.Item2); // error should be null
}
public static async Task <HttpResponseMessage> Run(HttpRequestMessage req)
{
// Get request body
dynamic data = await req.Content.ReadAsAsync <object>();
string longUrl = data?.url;
if (string.IsNullOrWhiteSpace(longUrl))
{
return(req.CreateResponse(HttpStatusCode.BadRequest));
}
var service = new ShortenerService();
var result = await service.CreateShortUrlAsync(longUrl.Trim());
return(result.Item1 == null
? req.CreateErrorResponse(HttpStatusCode.BadRequest, result.Item2)
: req.CreateResponse(HttpStatusCode.Created, result.Item1));
}
