public void ShouldPublishForEachWeatherEvent()
{
// Create mock object response from sampledata.json
var s3ResponseWithSampleData = new GetObjectResponse
{
ResponseStream = File.OpenRead(Path.Combine(TEST_DATA_PATH, "sampledata.json"))
};
// Tell fake S3 to return to return the mock object response created above.
A.CallTo(() =>
_fakeS3.GetObjectAsync(A <GetObjectRequest> .That.Matches(x => x.BucketName == _s3GetObjectRequest.BucketName && x.Key == _s3GetObjectRequest.Key), A <CancellationToken> ._))
.Returns(Task.FromResult(s3ResponseWithSampleData));
var bulkEventsLambda = new BulkEventsLambda(_fakeS3, _fakeSns, _snsTopic);
bulkEventsLambda.S3EventHandler(_fakeS3Event);
// 3 events in sampledata.json => expect 3 sns publish calls.
A.CallTo(() =>
_fakeSns.PublishAsync(_snsTopic, A <string> ._, CancellationToken.None))
.MustHaveHappened(3, Times.Exactly);
var expectedMessage = "{\"LocationName\":\"New York, NY\",\"Temperature\":91,\"Timestamp\":1564428897,\"Longitude\":-73.99,\"Latitude\":40.7}";
A.CallTo(() =>
_fakeSns.PublishAsync(_snsTopic, expectedMessage, CancellationToken.None))
.MustHaveHappenedOnceExactly();
}
public void ShouldThrowWithBadData()
{
var mockS3Response = new GetObjectResponse
{
ResponseStream = File.OpenRead(Path.Combine(TEST_DATA_PATH, "baddata.json"))
};
var lambda = new BulkEventsLambda(null, null, "dummy");
Action act = () => lambda.ReadWeatherEvents(mockS3Response);
act.Should().Throw <System.Text.Json.JsonException>();
}
public void ShouldThrowWithInvalidJson()
{
var s3ResponseWithBadData = new GetObjectResponse
{
ResponseStream = File.OpenRead(Path.Combine(TEST_DATA_PATH, "baddata.json"))
};
// Tell fake S3 to return to return the mock object response created above.
A.CallTo(() =>
_fakeS3.GetObjectAsync(A <GetObjectRequest> .That.Matches(x => x.BucketName == _s3GetObjectRequest.BucketName && x.Key == _s3GetObjectRequest.Key), A <CancellationToken> ._))
.Returns(Task.FromResult(s3ResponseWithBadData));
var bulkEventsLambda = new BulkEventsLambda(_fakeS3, _fakeSns, _snsTopic);
Action act = () => bulkEventsLambda.S3EventHandler(_fakeS3Event);
act.Should().Throw <System.Text.Json.JsonException>();
}
public void ShouldReadWeatherEvents()
{
var bulkEventsLambda = new BulkEventsLambda(null, null, "dummyTopic");
var mockS3Response = new GetObjectResponse
{
ResponseStream = File.OpenRead(Path.Combine(TEST_DATA_PATH, "sampledata.json"))
};
var weatherEvents = bulkEventsLambda.ReadWeatherEvents(mockS3Response);
weatherEvents.Count.Should().Be(3);
weatherEvents[0].LocationName.Should().Be("New York, NY");
weatherEvents[0].Temperature.Should().Be(91);
weatherEvents[0].Timestamp.Should().Be(1564428897);
weatherEvents[0].Latitude.Should().Be(40.70);
weatherEvents[0].Longitude.Should().Be(-73.99);
}