public void Spool_WhenOneEmailNotSent_WhenEmailSendsSuccessfully_MarksEmailAsSent()
{
// test setup
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var dto = EmailBuilder.Create().WithRandomProps().WithRandomRecipient().WithRandomAttachment(2).Build();
dto.EmailRecipients.First().IsBCC = true;
dto.EmailRecipients.First().IsCC = true;
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
// pre-conditions
Assert.AreEqual(2, dto.EmailAttachments.Count(a => a.Data.Length > 0 && a.Name.Length > 0));
// execute test
ctx.DidNotReceive().SaveChanges();
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
// test result
Assert.IsTrue(dto.Sent);
ctx.Received().SaveChanges();
}
public void Spool_PurgesUnsendableEmailOlderThanConfiguredKeepSentForValue()
{
// test setup
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var dto = EmailBuilder.BuildRandomWithRecipient();
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
var dayVal = RandomValueGen.GetRandomInt(30, 40);
deps.EmailSpoolerConfig.PurgeMessageWithAgeInDays.ReturnsForAnyArgs(ci => dayVal);
dto.Sent = false;
dto.SendAttempts = deps.EmailSpoolerConfig.MaxSendAttempts;
dto.LastModified = DateTime.Now.AddDays(-dayVal).AddSeconds(-10);
// pre-conditions
Assert.AreEqual(1, ctx.Emails.Count());
// execute test
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
// test result
email.DidNotReceive().Send();
Assert.AreEqual(0, ctx.Emails.Count());
ctx.Received().SaveChanges();
}
public void Spool_DoesNotSendDisabledMails()
{
// test setup
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var dto = EmailBuilder.Create().WithRandomProps().WithRandomRecipient().WithRandomAttachment(2).Build();
dto.EmailRecipients.First().IsBCC = true;
dto.EmailRecipients.First().IsCC = true;
dto.SendAt = DateTime.Now.AddYears(-1);
dto.Enabled = false;
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
// pre-conditions
Assert.AreEqual(2, dto.EmailAttachments.Count(a => a.Data.Length > 0 && a.Name.Length > 0));
// execute test
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
// test result
email.DidNotReceive().Send();
}
public void Spool_WhenOneEmailNotSentButSendAttemptsExceeded_DoesNotSendMail()
{
// test setup
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var dto = EmailBuilder.Create().WithRandomProps().WithRandomRecipient().WithRandomAttachment(2).Build();
var maxAttempts = RandomValueGen.GetRandomInt(3, 6);
dto.EmailRecipients.First().IsBCC = true;
dto.EmailRecipients.First().IsCC = true;
dto.SendAt = DateTime.Now.AddYears(-1);
dto.SendAttempts = maxAttempts + 1;
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
deps.EmailSpoolerConfig.MaxSendAttempts.ReturnsForAnyArgs(ci => maxAttempts);
// pre-conditions
Assert.AreEqual(2, dto.EmailAttachments.Count(a => a.Data.Length > 0 && a.Name.Length > 0));
// execute test
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
// test result
email.DidNotReceive().Send();
}
public void Spool_WhenOneEmailNotSent_AddsAllAttachmentsWithContentIDsWithContentIds()
{
// test setup
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var dto = EmailBuilder.Create().WithRandomProps().WithRandomRecipient().WithRandomAttachment(2).Build();
dto.EmailRecipients.First().IsBCC = true;
dto.EmailRecipients.First().IsCC = true;
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
// pre-conditions
Assert.AreEqual(2, dto.EmailAttachments.Count(a => a.Data.Length > 0 && a.Name.Length > 0));
// execute test
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
// test result
foreach (var attachment in dto.EmailAttachments)
{
email.Received().AddAttachment(attachment.Name, attachment.Data, attachment.MIMEType, attachment.ContentID);
}
}
public void Spool_WhenOneEmailNotSent_AddsRecipientsToAllConfiguredFields()
{
// test setup
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var dto = EmailBuilder.Create().WithRandomProps().WithRandomRecipient().Build();
dto.EmailRecipients.First().IsBCC = true;
dto.EmailRecipients.First().IsCC = true;
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
// pre-conditions
Assert.IsTrue(dto.EmailRecipients.Count(e => e.IsBCC && e.IsPrimaryRecipient && e.IsCC) == 1);
// execute test
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
// test result
foreach (var recipient in dto.EmailRecipients)
{
email.Received().AddRecipient(recipient.Recipient);
email.Received().AddBCC(recipient.Recipient);
email.Received().AddCC(recipient.Recipient);
}
}
public void Spool_WhenOneEmailNotSent_WhenEmailFailsToSend_BacksOffIncrementallyWithMultiplier()
{
// test setup
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var errorMessage = RandomValueGen.GetRandomString();
email.When(e => e.Send()).Do(ci => { throw new Exception(errorMessage); });
var dto = EmailBuilder.Create().WithRandomProps().WithRandomRecipient().WithRandomAttachment(2).Build();
dto.EmailRecipients.First().IsBCC = true;
dto.EmailRecipients.First().IsCC = true;
dto.SendAttempts = 1;
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
var backoff = RandomValueGen.GetRandomInt(2, 10);
deps.EmailSpoolerConfig.BackoffIntervalInMinutes.ReturnsForAnyArgs(ci => backoff);
// pre-conditions
Assert.AreEqual(2, dto.EmailAttachments.Count(a => a.Data.Length > 0 && a.Name.Length > 0));
// execute test
ctx.DidNotReceive().SaveChanges();
var beforeRun = DateTime.Now;
Assert.DoesNotThrow(() =>
{
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
});
// test result
Assert.IsFalse(dto.Sent);
Assert.AreEqual(errorMessage, dto.LastError);
Assert.AreEqual(2, dto.SendAttempts);
Assert.That(beforeRun.AddMinutes(backoff * 4), Is.LessThanOrEqualTo(dto.SendAt));
Assert.That(beforeRun.AddMinutes(backoff * 4).AddSeconds(5), Is.GreaterThanOrEqualTo(dto.SendAt));
ctx.Received().SaveChanges();
}
public void Spool_ShouldDisposeOfEmailsProvidedByGenerator()
{
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var dto = EmailBuilder.BuildRandomWithRecipient();
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
// pre-conditions
Assert.IsTrue(dto.EmailRecipients.Any());
// execute test
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
// test result
email.Received().Dispose();
}
public void Spool_WhenOneEmailNotSent_CreatesEmailWithPropertiesFromDTO(string dtoProp, string emailProp)
{
// test setup
var email = CreateSubstituteEmail();
var func = EmailGeneratorWith(email);
var dto = EmailBuilder.BuildRandomWithRecipient();
var ctx = SubstituteEmailContextBuilder.Create().WithEmails(dto).Build();
var deps = FakeEmailSpoolerDependenciesBuilder.Create()
.WithDbContext(ctx)
.WithEmailGenerator(func)
.Build();
// pre-conditions
Assert.IsTrue(dto.EmailRecipients.Any());
// execute test
using (var spooler = new EmailSpooler(deps))
{
spooler.Spool();
}
// test result
PropertyAssert.AreEqual(dto, email, dtoProp, emailProp);
}