public async Task GetSpecificSubredditAsync_WhenRedditKnownSubredditIsNull_ThrowsArgumentNullException()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
const IRedditKnownSubreddit knownSubreddit = null;
IRedditLogic sut = CreateSut();
await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
}
public async Task GetSpecificSubredditAsync_WhenAccessTokenIsNull_ThrowsArgumentNullException()
{
const IRedditAccessToken accessToken = null;
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
IRedditRepository sut = CreateSut();
await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
}
public async Task GetSpecificSubredditAsync_WhenCalled_AssertWillExceedRateLimitWasCalledOnRedditRateLimitLogic()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
IRedditLogic sut = CreateSut();
await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
_redditRateLimitLogicMock.Verify(m => m.WillExceedRateLimit(It.Is <int>(value => value == 1)), Times.Once);
}
public async Task GetSpecificSubredditAsync_WhenCalledAndRedditRateLimitHasExceeded_ReturnsNull()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
const bool willExceedRateLimit = true;
IRedditLogic sut = CreateSut(willExceedRateLimit: willExceedRateLimit);
IRedditSubreddit result = await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
Assert.IsNull(result);
}
public async Task GetSpecificSubredditAsync_WhenCalledAndRedditRateLimitHasNotExceededAndExceptionOccurs_ReturnsNull()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
const bool willExceedRateLimit = false;
Exception exception = new Exception();
IRedditLogic sut = CreateSut(willExceedRateLimit: willExceedRateLimit, exception: exception);
IRedditSubreddit result = await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
Assert.IsNull(result);
}
public async Task GetSpecificSubredditAsync_WhenCalledAndRedditRateLimitHasNotExceededAndExceptionOccurs_AssertHandleAsyncWasCalledOnExceptionHandler()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
const bool willExceedRateLimit = false;
Exception exception = new Exception();
IRedditLogic sut = CreateSut(willExceedRateLimit: willExceedRateLimit, exception: exception);
await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
_exceptionHandlerMock.Verify(m => m.HandleAsync(It.Is <Exception>(value => value == exception)), Times.Once);
}
public async Task GetSpecificSubredditAsync_WhenCalledAndRedditRateLimitHasNotExceeded_AssertHandleAsyncWasNotCalledOnExceptionHandler()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
const bool willExceedRateLimit = false;
IRedditLogic sut = CreateSut(willExceedRateLimit: willExceedRateLimit);
await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
_exceptionHandlerMock.Verify(m => m.HandleAsync(It.IsAny <AggregateException>()), Times.Never);
_exceptionHandlerMock.Verify(m => m.HandleAsync(It.IsAny <Exception>()), Times.Never);
}
public async Task GetSpecificSubredditAsync_WhenCalledAndRedditRateLimitHasExceeded_AssertGetSpecificSubredditAsyncWasNotCalledOnRedditRepository()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
const bool willExceedRateLimit = true;
IRedditLogic sut = CreateSut(willExceedRateLimit: willExceedRateLimit);
await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
_redditRepositoryMock.Verify(m => m.GetSpecificSubredditAsync(
It.IsAny <IRedditAccessToken>(),
It.IsAny <IRedditKnownSubreddit>()),
Times.Never);
}
public async Task GetSpecificSubredditAsync_WhenCalledAndRedditRateLimitHasNotExceeded_ReturnsSubreddit()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
const bool willExceedRateLimit = false;
IRedditSubreddit subreddit = CreateSubreddit();
IRedditResponse <IRedditSubreddit> redditResponse = CreateRedditResponse(subreddit: subreddit);
IRedditLogic sut = CreateSut(willExceedRateLimit: willExceedRateLimit, redditResponse: redditResponse);
IRedditSubreddit result = await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
Assert.IsNotNull(result);
Assert.AreEqual(subreddit, result);
}
public async Task GetSpecificSubredditAsync_WhenCalled_AssertHandleAsyncWasCalledOnExceptionHandler()
{
IRedditAccessToken redditAccessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
IRedditRepository sut = CreateSut();
await sut.GetSpecificSubredditAsync(redditAccessToken, knownSubreddit);
_exceptionHandlerMock.Verify(m => m.HandleAsync(It.Is <Exception>(exception =>
exception != null &&
exception.InnerException == null &&
exception.GetType() == typeof(UnauthorizedAccessException))),
Times.Once());
}
private async Task GetKnownNsfwSubredditsAsync_WhenCalled_ExpectKnownNsfwSubredditsContainsName(string name)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(nameof(name));
}
IDataProviderFactory sut = CreateSut();
IEnumerable <IRedditKnownSubreddit> knownNsfwSubreddits = await sut.GetKnownNsfwSubredditsAsync();
Assert.IsNotNull(knownNsfwSubreddits);
Assert.AreEqual(NumberOfKnownNsfwSubreddits, knownNsfwSubreddits.Count());
IRedditKnownSubreddit knownNsfwSubreddit = knownNsfwSubreddits.SingleOrDefault(m => string.Compare(m.Name, name, false) == 0);
Assert.IsNotNull(knownNsfwSubreddit);
Assert.IsTrue(knownNsfwSubreddit.Rank >= _minRank && knownNsfwSubreddit.Rank <= _maxRank);
}
public async Task GetSpecificSubredditAsync_WhenCalledAndRedditRateLimitHasNotExceeded_AssertEnforceRateLimitAsyncWasCalledOnRedditRateLimitLogic()
{
IRedditAccessToken accessToken = CreateRedditAccessToken();
IRedditKnownSubreddit knownSubreddit = CreateRedditKnownSubreddit();
const bool willExceedRateLimit = false;
int rateLimitUsed = _random.Next(1, 60);
int rateLimitRemaining = _random.Next(1, 60);
DateTime rateLimitResetTime = DateTime.Now.AddSeconds(_random.Next(90, 300));
DateTime receivedTime = DateTime.Now.AddSeconds(_random.Next(1, 10) * -1);
IRedditResponse <IRedditSubreddit> redditResponse = CreateRedditResponse(rateLimitUsed, rateLimitRemaining, rateLimitResetTime, receivedTime);
IRedditLogic sut = CreateSut(willExceedRateLimit: willExceedRateLimit, redditResponse: redditResponse);
await sut.GetSpecificSubredditAsync(accessToken, knownSubreddit);
_redditRateLimitLogicMock.Verify(m => m.EnforceRateLimitAsync(
It.Is <int>(value => value == rateLimitUsed),
It.Is <int>(value => value == rateLimitRemaining),
It.Is <DateTime?>(value => value.HasValue && value.Value == rateLimitResetTime),
It.Is <DateTime>(value => value == receivedTime)),
Times.Once);
}
public async Task <IRedditResponse <IRedditSubreddit> > GetSpecificSubredditAsync(IRedditAccessToken accessToken, IRedditKnownSubreddit knownSubreddit)
{
if (accessToken == null)
{
throw new ArgumentNullException(nameof(accessToken));
}
if (knownSubreddit == null)
{
throw new ArgumentNullException(nameof(knownSubreddit));
}
try
{
IRedditResponse <RedditListChild <RedditSubreddit> > response = await GetAsync <RedditListChild <RedditSubreddit> >(new Uri($"{RedditApiUrl}/r/{knownSubreddit.Name}/about"), accessToken.TokenType, accessToken.AccessToken);
return(response.As <IRedditSubreddit>(response.Data.Data));
}
catch (AggregateException ex)
{
await _exceptionHandler.HandleAsync(ex);
}
catch (Exception ex)
{
await _exceptionHandler.HandleAsync(ex);
}
return(null);
}
