Add assignee and assignees properties to some issues api payload (#2398)

src/test/scala/gitbucket/core/api/ApiSpecModels.scala

@@ -195,6 +195,15 @@ object ApiSpecModels {
     issue = issue,
     repositoryName = repo1Name,
     user = apiUser,
+    assignee = Some(apiUser),
+    labels = List(apiLabel)
+  )
+
+  val apiNotAssignedIssue = ApiIssue(
+    issue = issue,
+    repositoryName = repo1Name,
+    user = apiUser,
+    assignee = None,
     labels = List(apiLabel)
   )
 
@@ -202,6 +211,7 @@ object ApiSpecModels {
     issue = issuePR,
     repositoryName = repo1Name,
     user = apiUser,
+    assignee = Some(apiUser),
     labels = List(apiLabel)
   )
 
@@ -449,12 +459,29 @@ object ApiSpecModels {
        |"number":1347,
        |"title":"Found a bug",
        |"user":$jsonUser,
+       |"assignee":$jsonUser,
        |"labels":[$jsonLabel],
        |"state":"open",
        |"created_at":"2011-04-14T16:00:49Z",
        |"updated_at":"2011-04-14T16:00:49Z",
        |"body":"I'm having a problem with this.",
        |"id":0,
+       |"assignees":[$jsonUser],
+       |"comments_url":"http://gitbucket.exmple.com/api/v3/repos/octocat/Hello-World/issues/1347/comments",
+       |"html_url":"http://gitbucket.exmple.com/octocat/Hello-World/issues/1347"
+       |}""".stripMargin
+
+  val jsonNotAssignedIssue = s"""{
+       |"number":1347,
+       |"title":"Found a bug",
+       |"user":$jsonUser,
+       |"labels":[$jsonLabel],
+       |"state":"open",
+       |"created_at":"2011-04-14T16:00:49Z",
+       |"updated_at":"2011-04-14T16:00:49Z",
+       |"body":"I'm having a problem with this.",
+       |"id":0,
+       |"assignees":[],
        |"comments_url":"http://gitbucket.exmple.com/api/v3/repos/octocat/Hello-World/issues/1347/comments",
        |"html_url":"http://gitbucket.exmple.com/octocat/Hello-World/issues/1347"
        |}""".stripMargin
@@ -463,12 +490,14 @@ object ApiSpecModels {
        |"number":1347,
        |"title":"new-feature",
        |"user":$jsonUser,
+       |"assignee":$jsonUser,
        |"labels":[$jsonLabel],
        |"state":"closed",
        |"created_at":"2011-04-14T16:00:49Z",
        |"updated_at":"2011-04-14T16:00:49Z",
        |"body":"Please pull these awesome changes",
        |"id":0,
+       |"assignees":[$jsonUser],
        |"comments_url":"http://gitbucket.exmple.com/api/v3/repos/octocat/Hello-World/issues/1347/comments",
        |"html_url":"http://gitbucket.exmple.com/octocat/Hello-World/pull/1347",
        |"pull_request":{

src/test/scala/gitbucket/core/api/JsonFormatSpec.scala

@@ -34,6 +34,7 @@ class JsonFormatSpec extends FunSuite {
   }
   test("apiIssue") {
     assert(JsonFormat(apiIssue) == expected(jsonIssue))
+    assert(JsonFormat(apiNotAssignedIssue) == expected(jsonNotAssignedIssue))
     assert(JsonFormat(apiIssuePR) == expected(jsonIssuePR))
   }
   test("apiPullRequest") {

src/test/scala/gitbucket/core/service/WebHookJsonFormatSpec.scala

@@ -118,6 +118,7 @@ class WebHookJsonFormatSpec extends FunSuite {
       commentUser = account,
       repository = repositoryInfo,
       repositoryUser = account,
+      assignedUser = Some(account),
       sender = account,
       labels = List(label)
     )