public void RetriableDocumentClientExceptionsShouldBeRetriedALimitedNumberOfTimes(int httpStatusCode, int maxRetries)
{
// Arrange
var id = Guid.NewGuid();
var repository = new Mock <IDocumentRepository>();
repository.Setup(r => r.Get <string>(id)).ThrowsAsync(DocumentClientExceptionFactory.Create((HttpStatusCode)httpStatusCode));
var options = new RetryOptions(maxRetries);
var stuffGetter = new RetriableGetStuff(repository.Object, options);
// Act
AsyncTestDelegate actor = async() => await stuffGetter.Get <string>(id);
// Assert
Assert.ThrowsAsync <DocumentClientException>(actor).StatusCode.Should().Be((HttpStatusCode)httpStatusCode);
repository.Verify(r => r.Get <string>(id), Times.Exactly(maxRetries));
}
public async Task DoNotRetrySuccessfulAttempts()
{
// Arramge
var id = Guid.NewGuid();
var expected = "{ }";
var repository = new Mock <IDocumentRepository>();
repository.Setup(r => r.Get <string>(id)).ReturnsAsync(expected);
var options = new RetryOptions(5);
var stuffGetter = new RetriableGetStuff(repository.Object, options);
// Act
var actual = await stuffGetter.Get <string>(id);
// Assert
actual.Should().Be(expected);
repository.Verify(r => r.Get <string>(id), Times.Once);
}
public async Task RetriableDocumentClientExceptionsShouldBeRetried(int httpStatusCode)
{
// Arrange
var id = Guid.NewGuid();
var expected = "{ }";
var repository = new Mock <IDocumentRepository>();
repository.SetupSequence(r => r.Get <string>(id))
.ThrowsAsync(DocumentClientExceptionFactory.Create((HttpStatusCode)httpStatusCode))
.ReturnsAsync(expected);
var options = new RetryOptions(5);
var stuffGetter = new RetriableGetStuff(repository.Object, options);
// Act
var actual = await stuffGetter.Get <string>(id);
// Assert
actual.Should().Be(expected);
repository.Verify(r => r.Get <string>(id), Times.Exactly(2));
}