Add support for signer sponsorship events

CHANGELOG.md

@@ -4,6 +4,10 @@ As this project is pre 1.0, breaking changes may happen for minor version bumps.
 
 ## Next version
 
+## 0.19.1
+
+- [#389](https://github.com/Synesso/scala-stellar-sdk/issues/389) Adds support for Signer Sponsorship state snapshot events.
+
 ## 0.19.0
 
 - A wide-ranging review of the SDK resulted in realignments to SDK/Network interactions and some data types. This has

README.md

@@ -18,7 +18,7 @@ Add the JitPack & jcenter resolvers and the [latest dependency](https://jitpack.
 ```scala
 resolvers += "jitpack" at "https://jitpack.io"
 resolvers += Resolver.jcenterRepo
-libraryDependencies += "com.github.synesso" %% "scala-stellar-sdk" % "0.19.0"
+libraryDependencies += "com.github.synesso" %% "scala-stellar-sdk" % "0.19.1"
 ```
 
 From there, it is a simple affair to create and fund a new account on the test network.

src/main/scala/stellar/sdk/model/response/EffectResponse.scala

@@ -45,6 +45,12 @@ case class EffectSignerUpdated(id: String, createdAt: ZonedDateTime, account: Pu
 
 case class EffectSignerRemoved(id: String, createdAt: ZonedDateTime, account: PublicKeyOps, publicKey: String) extends EffectResponse
 
+case class EffectSignerSponsorshipCreated(id: String, createdAt: ZonedDateTime, account: PublicKeyOps, signer: PublicKeyOps, newSponsor: PublicKeyOps) extends EffectResponse
+
+case class EffectSignerSponsorshipRemoved(id: String, createdAt: ZonedDateTime, account: PublicKeyOps, signer: PublicKeyOps, formerSponsor: PublicKeyOps) extends EffectResponse
+
+case class EffectSignerSponsorshipUpdated(id: String, createdAt: ZonedDateTime, account: PublicKeyOps, signer: PublicKeyOps, formerSponsor: PublicKeyOps, newSponsor: PublicKeyOps) extends EffectResponse
+
 case class EffectTrustLineCreated(id: String, createdAt: ZonedDateTime, account: PublicKeyOps, limit: IssuedAmount) extends EffectResponse {
   val asset: NonNativeAsset = limit.asset
 }
@@ -120,6 +126,19 @@ object EffectResponseDeserializer extends ResponseParser[EffectResponse]({ o: JO
     case "signer_created" => EffectSignerCreated(id, createdAt, account(), weight, (o \ "public_key").extract[String])
     case "signer_updated" => EffectSignerUpdated(id, createdAt, account(), weight, (o \ "public_key").extract[String])
     case "signer_removed" => EffectSignerRemoved(id, createdAt, account(), (o \ "public_key").extract[String])
+    case "signer_sponsorship_created" => EffectSignerSponsorshipCreated(id, createdAt, account(),
+      signer = account("signer"),
+      newSponsor = account("sponsor")
+    )
+    case "signer_sponsorship_removed" => EffectSignerSponsorshipRemoved(id, createdAt, account(),
+      signer = account("signer"),
+      formerSponsor = account("former_sponsor")
+    )
+    case "signer_sponsorship_updated" => EffectSignerSponsorshipUpdated(id, createdAt, account(),
+      signer = account("signer"),
+      formerSponsor = account("former_sponsor"),
+      newSponsor = account("new_sponsor")
+    )
     case "trustline_created" => EffectTrustLineCreated(id, createdAt, account(), amount(key = "limit").asInstanceOf[IssuedAmount])
     case "trustline_updated" => EffectTrustLineUpdated(id, createdAt, account(), amount(key = "limit").asInstanceOf[IssuedAmount])
     case "trustline_removed" => EffectTrustLineRemoved(id, createdAt, account(), asset().asInstanceOf[NonNativeAsset])

src/test/scala/stellar/sdk/model/response/SignerEffectResponseSpec.scala

@@ -37,6 +37,27 @@ class SignerEffectResponseSpec extends Specification with ArbitraryInput with Js
     }.setGen1(Gen.identifier).setGen4(Gen.identifier)
   }
 
+  "a signer sponsorship created effect document" should {
+    "parse to a signer sponsorship created effect" >> prop { (id: String, created: ZonedDateTime, kp: KeyPair, signer: KeyPair, sponsor: KeyPair) =>
+      val json = doc(id, created, kp, "signer_sponsorship_created", 0, "signer" -> signer.accountId, "sponsor" -> sponsor.accountId)
+      parse(json).extract[EffectResponse] mustEqual EffectSignerSponsorshipCreated(id, created, kp.asPublicKey, signer.asPublicKey, sponsor.asPublicKey)
+    }.setGen1(Gen.identifier)
+  }
+
+  "a signer sponsorship removed effect document" should {
+    "parse to a signer sponsorship removed effect" >> prop { (id: String, created: ZonedDateTime, kp: KeyPair, signer: KeyPair, sponsor: KeyPair) =>
+      val json = doc(id, created, kp, "signer_sponsorship_removed", 0, "signer" -> signer.accountId, "former_sponsor" -> sponsor.accountId)
+      parse(json).extract[EffectResponse] mustEqual EffectSignerSponsorshipRemoved(id, created, kp.asPublicKey, signer.asPublicKey, sponsor.asPublicKey)
+    }.setGen1(Gen.identifier)
+  }
+
+  "a signer sponsorship updated effect document" should {
+    "parse to a signer sponsorship updated effect" >> prop { (id: String, created: ZonedDateTime, kp: KeyPair, signer: KeyPair, oldSponsor: KeyPair, newSponsor: KeyPair) =>
+      val json = doc(id, created, kp, "signer_sponsorship_updated", 0, "signer" -> signer.accountId, "former_sponsor" -> oldSponsor.accountId, "new_sponsor" -> newSponsor.accountId)
+      parse(json).extract[EffectResponse] mustEqual EffectSignerSponsorshipUpdated(id, created, kp.asPublicKey, signer.asPublicKey, oldSponsor.asPublicKey, newSponsor.asPublicKey)
+    }.setGen1(Gen.identifier)
+  }
+
   def doc(id: String, created: ZonedDateTime, kp: KeyPair, tpe: String, weight: Short, extra: (String, Any)*) =
     s"""
        |{