Add json to the default set of mapped types and make the map public

Author: clhodapp

.travis.yml

@@ -1,3 +1,4 @@
+dist: trusty
 language: scala
 
 scala:
@@ -7,6 +8,9 @@ scala:
 jdk:
   - oraclejdk8
 
+addons:
+  postgresql: "9.5"
+
 services:
   - postgresql
 

build.sbt

@@ -14,7 +14,8 @@ val baseSettings = Seq(
     "com.twitter" %% "finagle-core" % "6.42.0",
     "org.scalatest" %% "scalatest" % "3.0.2" % "test,it",
     "org.scalacheck" %% "scalacheck" % "1.13.5" % "test,it",
-    "org.scalamock" %% "scalamock-scalatest-support" % "3.4.2" % "test,it"
+    "org.scalamock" %% "scalamock-scalatest-support" % "3.4.2" % "test,it",
+    "io.circe" %% "circe-testing" % "0.7.0" % "test,it"
   )
 )
 

src/main/scala/com/twitter/finagle/postgres/PostgresClient.scala

@@ -81,7 +81,7 @@ object PostgresClient {
 
   case class TypeSpecifier(receiveFunction: String, typeName: String, elemOid: Long = 0)
 
-  private[finagle] val defaultTypes = Map(
+  val defaultTypes = Map(
     Types.BOOL -> TypeSpecifier("boolrecv", "bool"),
     Types.BYTE_A -> TypeSpecifier("bytearecv", "bytea"),
     Types.CHAR -> TypeSpecifier("charrecv", "char"),
@@ -95,6 +95,7 @@ object PostgresClient {
     Types.TID -> TypeSpecifier("tidrecv", "tid"),
     Types.XID -> TypeSpecifier("xidrecv", "xid"),
     Types.CID -> TypeSpecifier("cidrecv", "cid"),
+    Types.JSON -> TypeSpecifier("json_recv", "json"),
     Types.XML -> TypeSpecifier("xml_recv", "xml"),
     Types.POINT -> TypeSpecifier("point_recv", "point"),
     Types.L_SEG -> TypeSpecifier("lseg_recv", "lseg"),

src/main/scala/com/twitter/finagle/postgres/values/Types.scala

@@ -17,6 +17,7 @@ object Types {
   val TID = 27
   val XID = 28
   val CID = 29
+  val JSON = 114
   val XML = 142
   val POINT = 600
   val L_SEG = 601

src/test/scala/com/twitter/finagle/postgres/values/ValuesSpec.scala

@@ -11,9 +11,10 @@ import com.twitter.finagle.postgres.PostgresClient.TypeSpecifier
 import com.twitter.finagle.postgres.messages.{DataRow, Field}
 import com.twitter.util.Await
 import org.jboss.netty.buffer.ChannelBuffers
-import org.scalacheck.Arbitrary
+import org.scalacheck.{Arbitrary, Gen}
 import Arbitrary.arbitrary
 import org.scalatest.prop.GeneratorDrivenPropertyChecks
+import io.circe.testing.instances.arbitraryJson
 
 class ValuesSpec extends Spec with GeneratorDrivenPropertyChecks {
 
@@ -138,6 +139,16 @@ class ValuesSpec extends Spec with GeneratorDrivenPropertyChecks {
       )
       "parse uuids" in test(ValueDecoder.uuid, ValueEncoder.uuid)("uuid_send", "uuid")
       "parse dates" in test(ValueDecoder.localDate, ValueEncoder.date)("date_send", "date")
+      "parse json" in test(ValueDecoder.string, ValueEncoder.string)("json_send", "json")(
+        Arbitrary(
+          Gen.oneOf(
+            arbitraryJson.arbitrary.map(_.noSpaces),
+            arbitraryJson.arbitrary.map(_.spaces4),
+            arbitraryJson.arbitrary.map(_.spaces2)
+          ).map(_.replace("\u0000", "\\u0000"))
+        ),
+        client
+      )
     }
   }
 }