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HttpUploadTest.scala
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HttpUploadTest.scala
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package bad.robot.temperature.client
import java.net.InetAddress
import bad.robot.temperature.rrd.{Host, Seconds}
import bad.robot.temperature.{IpAddress, Measurement, SensorReading, Temperature, UnexpectedError, jsonEncoder}
import cats.data.Kleisli
import cats.effect.IO
import org.http4s.Method.PUT
import org.http4s.client.{DisposableResponse, Client => Http4sClient}
import org.http4s.dsl.io._
import org.http4s.{EntityDecoder, Request}
import org.specs2.matcher.DisjunctionMatchers._
import org.specs2.mutable.Specification
class HttpUploadTest extends Specification {
"Ip address pre-check" >> {
IpAddress.currentIpAddress.size must be_>(0)
}
"Encode a measurement for the wire" >> {
def encodeMessageViaEntityEncoder(measurement: Measurement): String = {
implicit val encoder = jsonEncoder[Measurement]
val request: IO[Request[IO]] = Request(PUT).withBody(measurement)
EntityDecoder.decodeString(request.unsafeRunSync()).unsafeRunSync()
}
val measurement = Measurement(Host("example"), Seconds(1509221361), List(SensorReading("28-0115910f5eff", Temperature(19.75))))
encodeMessageViaEntityEncoder(measurement) must_== """|{
| "host" : {
| "name" : "example",
| "utcOffset" : null,
| "timezone" : null
| },
| "seconds" : 1509221361,
| "sensors" : [
| {
| "name" : "28-0115910f5eff",
| "temperature" : {
| "celsius" : 19.75
| }
| }
| ]
|}""".stripMargin
}
"Error response from server" >> {
val measurement = Measurement(Host("example"), Seconds(1509221361), List(SensorReading("28-0115910f5eff", Temperature(19.75))))
val error = InternalServerError("I'm an error").map(DisposableResponse(_, IO.pure(())))
val willError: Kleisli[IO, Request[IO], DisposableResponse[IO]] = new Kleisli[IO, Request[IO], DisposableResponse[IO]](_ => error)
val client = Http4sClient[IO](willError, IO.pure(()))
val upload = HttpUpload(InetAddress.getLoopbackAddress, client)
val value = upload.write(measurement)
value must be_-\/.like {
case UnexpectedError("""Failed to PUT temperature data to http://127.0.0.1:11900/temperature, response was 500 Internal Server Error: Right(I'm an error)""") => ok
}
}
"Request has headers" >> {
val measurement = Measurement(Host("example"), Seconds(1509221361), List(SensorReading("28-0115910f5eff", Temperature(19.75))))
var headers = List[String]()
val client = Http4sClient[IO](new Kleisli[IO, Request[IO], DisposableResponse[IO]](request => {
headers = request.headers.map(_.name.toString()).toList
Ok().map(DisposableResponse(_, IO.pure(())))
}), IO.pure(()))
val upload = HttpUpload(InetAddress.getLoopbackAddress, client)
upload.write(measurement)
headers must_== List(
"Content-Type",
"X-Forwarded-For",
"Content-Length"
)
}
}