webhooks: Add team reviewers support in github webhook.

The github webhook implementation previously ignored the "team reviewers"
part of pull_request events, resulting in inaccurate output.

Fixes: #14096.

zerver/webhooks/github/fixtures/pull_request__review_requested_team_reviewer.json

@@ -0,0 +1,570 @@
+{
+    "action": "review_requested",
+    "number": 4,
+    "pull_request": {
+        "url": "https://api.github.com/repos/test-org965/webhook-test/pulls/4",
+        "id": 384600887,
+        "node_id": "MDExOlB1bGxSZXF1ZXN0Mzg0NjAwODg3",
+        "html_url": "https://github.com/test-org965/webhook-test/pull/4",
+        "diff_url": "https://github.com/test-org965/webhook-test/pull/4.diff",
+        "patch_url": "https://github.com/test-org965/webhook-test/pull/4.patch",
+        "issue_url": "https://api.github.com/repos/test-org965/webhook-test/issues/4",
+        "number": 4,
+        "state": "open",
+        "locked": false,
+        "title": "testing webhook",
+        "user": {
+            "login": "singhsourabh",
+            "id": 32551625,
+            "node_id": "MDQ6VXNlcjMyNTUxNjI1",
+            "avatar_url": "https://avatars1.githubusercontent.com/u/32551625?v=4",
+            "gravatar_id": "",
+            "url": "https://api.github.com/users/singhsourabh",
+            "html_url": "https://github.com/singhsourabh",
+            "followers_url": "https://api.github.com/users/singhsourabh/followers",
+            "following_url": "https://api.github.com/users/singhsourabh/following{/other_user}",
+            "gists_url": "https://api.github.com/users/singhsourabh/gists{/gist_id}",
+            "starred_url": "https://api.github.com/users/singhsourabh/starred{/owner}{/repo}",
+            "subscriptions_url": "https://api.github.com/users/singhsourabh/subscriptions",
+            "organizations_url": "https://api.github.com/users/singhsourabh/orgs",
+            "repos_url": "https://api.github.com/users/singhsourabh/repos",
+            "events_url": "https://api.github.com/users/singhsourabh/events{/privacy}",
+            "received_events_url": "https://api.github.com/users/singhsourabh/received_events",
+            "type": "User",
+            "site_admin": false
+        },
+        "body": "",
+        "created_at": "2020-03-06T02:22:43Z",
+        "updated_at": "2020-03-06T02:22:54Z",
+        "closed_at": null,
+        "merged_at": null,
+        "merge_commit_sha": "881d8a70d0291cf8a17295f1a4e7fc06d6b7667b",
+        "assignee": null,
+        "assignees": [],
+        "requested_reviewers": [
+            {
+                "login": "shreyaskargit",
+                "id": 36965628,
+                "node_id": "MDQ6VXNlcjM2OTY1NjI4",
+                "avatar_url": "https://avatars3.githubusercontent.com/u/36965628?v=4",
+                "gravatar_id": "",
+                "url": "https://api.github.com/users/shreyaskargit",
+                "html_url": "https://github.com/shreyaskargit",
+                "followers_url": "https://api.github.com/users/shreyaskargit/followers",
+                "following_url": "https://api.github.com/users/shreyaskargit/following{/other_user}",
+                "gists_url": "https://api.github.com/users/shreyaskargit/gists{/gist_id}",
+                "starred_url": "https://api.github.com/users/shreyaskargit/starred{/owner}{/repo}",
+                "subscriptions_url": "https://api.github.com/users/shreyaskargit/subscriptions",
+                "organizations_url": "https://api.github.com/users/shreyaskargit/orgs",
+                "repos_url": "https://api.github.com/users/shreyaskargit/repos",
+                "events_url": "https://api.github.com/users/shreyaskargit/events{/privacy}",
+                "received_events_url": "https://api.github.com/users/shreyaskargit/received_events",
+                "type": "User",
+                "site_admin": false
+            },
+            {
+                "login": "bajaj99prashant",
+                "id": 42171435,
+                "node_id": "MDQ6VXNlcjQyMTcxNDM1",
+                "avatar_url": "https://avatars2.githubusercontent.com/u/42171435?v=4",
+                "gravatar_id": "",
+                "url": "https://api.github.com/users/bajaj99prashant",
+                "html_url": "https://github.com/bajaj99prashant",
+                "followers_url": "https://api.github.com/users/bajaj99prashant/followers",
+                "following_url": "https://api.github.com/users/bajaj99prashant/following{/other_user}",
+                "gists_url": "https://api.github.com/users/bajaj99prashant/gists{/gist_id}",
+                "starred_url": "https://api.github.com/users/bajaj99prashant/starred{/owner}{/repo}",
+                "subscriptions_url": "https://api.github.com/users/bajaj99prashant/subscriptions",
+                "organizations_url": "https://api.github.com/users/bajaj99prashant/orgs",
+                "repos_url": "https://api.github.com/users/bajaj99prashant/repos",
+                "events_url": "https://api.github.com/users/bajaj99prashant/events{/privacy}",
+                "received_events_url": "https://api.github.com/users/bajaj99prashant/received_events",
+                "type": "User",
+                "site_admin": false
+            }
+        ],
+        "requested_teams": [
+            {
+                "name": "review-team",
+                "id": 3692718,
+                "node_id": "MDQ6VGVhbTM2OTI3MTg=",
+                "slug": "review-team",
+                "description": "",
+                "privacy": "closed",
+                "url": "https://api.github.com/organizations/61805552/team/3692718",
+                "html_url": "https://github.com/orgs/test-org965/teams/review-team",
+                "members_url": "https://api.github.com/organizations/61805552/team/3692718/members{/member}",
+                "repositories_url": "https://api.github.com/organizations/61805552/team/3692718/repos",
+                "permission": "pull",
+                "parent": null
+            },
+            {
+                "name": "authority",
+                "id": 3694601,
+                "node_id": "MDQ6VGVhbTM2OTQ2MDE=",
+                "slug": "authority",
+                "description": "",
+                "privacy": "closed",
+                "url": "https://api.github.com/organizations/61805552/team/3694601",
+                "html_url": "https://github.com/orgs/test-org965/teams/authority",
+                "members_url": "https://api.github.com/organizations/61805552/team/3694601/members{/member}",
+                "repositories_url": "https://api.github.com/organizations/61805552/team/3694601/repos",
+                "permission": "pull",
+                "parent": null
+            },
+            {
+                "name": "management",
+                "id": 3694622,
+                "node_id": "MDQ6VGVhbTM2OTQ2MjI=",
+                "slug": "management",
+                "description": "",
+                "privacy": "closed",
+                "url": "https://api.github.com/organizations/61805552/team/3694622",
+                "html_url": "https://github.com/orgs/test-org965/teams/management",
+                "members_url": "https://api.github.com/organizations/61805552/team/3694622/members{/member}",
+                "repositories_url": "https://api.github.com/organizations/61805552/team/3694622/repos",
+                "permission": "pull",
+                "parent": {
+                    "name": "authority",
+                    "id": 3694601,
+                    "node_id": "MDQ6VGVhbTM2OTQ2MDE=",
+                    "slug": "authority",
+                    "description": "",
+                    "privacy": "closed",
+                    "url": "https://api.github.com/organizations/61805552/team/3694601",
+                    "html_url": "https://github.com/orgs/test-org965/teams/authority",
+                    "members_url": "https://api.github.com/organizations/61805552/team/3694601/members{/member}",
+                    "repositories_url": "https://api.github.com/organizations/61805552/team/3694601/repos",
+                    "permission": "pull"
+                }
+            }
+        ],
+        "labels": [],
+        "milestone": null,
+        "commits_url": "https://api.github.com/repos/test-org965/webhook-test/pulls/4/commits",
+        "review_comments_url": "https://api.github.com/repos/test-org965/webhook-test/pulls/4/comments",
+        "review_comment_url": "https://api.github.com/repos/test-org965/webhook-test/pulls/comments{/number}",
+        "comments_url": "https://api.github.com/repos/test-org965/webhook-test/issues/4/comments",
+        "statuses_url": "https://api.github.com/repos/test-org965/webhook-test/statuses/08290f062a0fae68fc379cea22bc32ed1d518456",
+        "head": {
+            "label": "test-org965:dev",
+            "ref": "dev",
+            "sha": "08290f062a0fae68fc379cea22bc32ed1d518456",
+            "user": {
+                "login": "test-org965",
+                "id": 61805552,
+                "node_id": "MDEyOk9yZ2FuaXphdGlvbjYxODA1NTUy",
+                "avatar_url": "https://avatars0.githubusercontent.com/u/61805552?v=4",
+                "gravatar_id": "",
+                "url": "https://api.github.com/users/test-org965",
+                "html_url": "https://github.com/test-org965",
+                "followers_url": "https://api.github.com/users/test-org965/followers",
+                "following_url": "https://api.github.com/users/test-org965/following{/other_user}",
+                "gists_url": "https://api.github.com/users/test-org965/gists{/gist_id}",
+                "starred_url": "https://api.github.com/users/test-org965/starred{/owner}{/repo}",
+                "subscriptions_url": "https://api.github.com/users/test-org965/subscriptions",
+                "organizations_url": "https://api.github.com/users/test-org965/orgs",
+                "repos_url": "https://api.github.com/users/test-org965/repos",
+                "events_url": "https://api.github.com/users/test-org965/events{/privacy}",
+                "received_events_url": "https://api.github.com/users/test-org965/received_events",
+                "type": "Organization",
+                "site_admin": false
+            },
+            "repo": {
+                "id": 245057352,
+                "node_id": "MDEwOlJlcG9zaXRvcnkyNDUwNTczNTI=",
+                "name": "webhook-test",
+                "full_name": "test-org965/webhook-test",
+                "private": false,
+                "owner": {
+                    "login": "test-org965",
+                    "id": 61805552,
+                    "node_id": "MDEyOk9yZ2FuaXphdGlvbjYxODA1NTUy",
+                    "avatar_url": "https://avatars0.githubusercontent.com/u/61805552?v=4",
+                    "gravatar_id": "",
+                    "url": "https://api.github.com/users/test-org965",
+                    "html_url": "https://github.com/test-org965",
+                    "followers_url": "https://api.github.com/users/test-org965/followers",
+                    "following_url": "https://api.github.com/users/test-org965/following{/other_user}",
+                    "gists_url": "https://api.github.com/users/test-org965/gists{/gist_id}",
+                    "starred_url": "https://api.github.com/users/test-org965/starred{/owner}{/repo}",
+                    "subscriptions_url": "https://api.github.com/users/test-org965/subscriptions",
+                    "organizations_url": "https://api.github.com/users/test-org965/orgs",
+                    "repos_url": "https://api.github.com/users/test-org965/repos",
+                    "events_url": "https://api.github.com/users/test-org965/events{/privacy}",
+                    "received_events_url": "https://api.github.com/users/test-org965/received_events",
+                    "type": "Organization",
+                    "site_admin": false
+                },
+                "html_url": "https://github.com/test-org965/webhook-test",
+                "description": null,
+                "fork": false,
+                "url": "https://api.github.com/repos/test-org965/webhook-test",
+                "forks_url": "https://api.github.com/repos/test-org965/webhook-test/forks",
+                "keys_url": "https://api.github.com/repos/test-org965/webhook-test/keys{/key_id}",
+                "collaborators_url": "https://api.github.com/repos/test-org965/webhook-test/collaborators{/collaborator}",
+                "teams_url": "https://api.github.com/repos/test-org965/webhook-test/teams",
+                "hooks_url": "https://api.github.com/repos/test-org965/webhook-test/hooks",
+                "issue_events_url": "https://api.github.com/repos/test-org965/webhook-test/issues/events{/number}",
+                "events_url": "https://api.github.com/repos/test-org965/webhook-test/events",
+                "assignees_url": "https://api.github.com/repos/test-org965/webhook-test/assignees{/user}",
+                "branches_url": "https://api.github.com/repos/test-org965/webhook-test/branches{/branch}",
+                "tags_url": "https://api.github.com/repos/test-org965/webhook-test/tags",
+                "blobs_url": "https://api.github.com/repos/test-org965/webhook-test/git/blobs{/sha}",
+                "git_tags_url": "https://api.github.com/repos/test-org965/webhook-test/git/tags{/sha}",
+                "git_refs_url": "https://api.github.com/repos/test-org965/webhook-test/git/refs{/sha}",
+                "trees_url": "https://api.github.com/repos/test-org965/webhook-test/git/trees{/sha}",
+                "statuses_url": "https://api.github.com/repos/test-org965/webhook-test/statuses/{sha}",
+                "languages_url": "https://api.github.com/repos/test-org965/webhook-test/languages",
+                "stargazers_url": "https://api.github.com/repos/test-org965/webhook-test/stargazers",
+                "contributors_url": "https://api.github.com/repos/test-org965/webhook-test/contributors",
+                "subscribers_url": "https://api.github.com/repos/test-org965/webhook-test/subscribers",
+                "subscription_url": "https://api.github.com/repos/test-org965/webhook-test/subscription",
+                "commits_url": "https://api.github.com/repos/test-org965/webhook-test/commits{/sha}",
+                "git_commits_url": "https://api.github.com/repos/test-org965/webhook-test/git/commits{/sha}",
+                "comments_url": "https://api.github.com/repos/test-org965/webhook-test/comments{/number}",
+                "issue_comment_url": "https://api.github.com/repos/test-org965/webhook-test/issues/comments{/number}",
+                "contents_url": "https://api.github.com/repos/test-org965/webhook-test/contents/{+path}",
+                "compare_url": "https://api.github.com/repos/test-org965/webhook-test/compare/{base}...{head}",
+                "merges_url": "https://api.github.com/repos/test-org965/webhook-test/merges",
+                "archive_url": "https://api.github.com/repos/test-org965/webhook-test/{archive_format}{/ref}",
+                "downloads_url": "https://api.github.com/repos/test-org965/webhook-test/downloads",
+                "issues_url": "https://api.github.com/repos/test-org965/webhook-test/issues{/number}",
+                "pulls_url": "https://api.github.com/repos/test-org965/webhook-test/pulls{/number}",
+                "milestones_url": "https://api.github.com/repos/test-org965/webhook-test/milestones{/number}",
+                "notifications_url": "https://api.github.com/repos/test-org965/webhook-test/notifications{?since,all,participating}",
+                "labels_url": "https://api.github.com/repos/test-org965/webhook-test/labels{/name}",
+                "releases_url": "https://api.github.com/repos/test-org965/webhook-test/releases{/id}",
+                "deployments_url": "https://api.github.com/repos/test-org965/webhook-test/deployments",
+                "created_at": "2020-03-05T03:12:28Z",
+                "updated_at": "2020-03-06T02:20:29Z",
+                "pushed_at": "2020-03-06T02:22:44Z",
+                "git_url": "git://github.com/test-org965/webhook-test.git",
+                "ssh_url": "git@github.com:test-org965/webhook-test.git",
+                "clone_url": "https://github.com/test-org965/webhook-test.git",
+                "svn_url": "https://github.com/test-org965/webhook-test",
+                "homepage": null,
+                "size": 1,
+                "stargazers_count": 0,
+                "watchers_count": 0,
+                "language": null,
+                "has_issues": true,
+                "has_projects": true,
+                "has_downloads": true,
+                "has_wiki": true,
+                "has_pages": false,
+                "forks_count": 0,
+                "mirror_url": null,
+                "archived": false,
+                "disabled": false,
+                "open_issues_count": 1,
+                "license": null,
+                "forks": 0,
+                "open_issues": 1,
+                "watchers": 0,
+                "default_branch": "master"
+            }
+        },
+        "base": {
+            "label": "test-org965:master",
+            "ref": "master",
+            "sha": "0813e6ef1b5a234b3b81d2c8f5a5bb3e4adf61a6",
+            "user": {
+                "login": "test-org965",
+                "id": 61805552,
+                "node_id": "MDEyOk9yZ2FuaXphdGlvbjYxODA1NTUy",
+                "avatar_url": "https://avatars0.githubusercontent.com/u/61805552?v=4",
+                "gravatar_id": "",
+                "url": "https://api.github.com/users/test-org965",
+                "html_url": "https://github.com/test-org965",
+                "followers_url": "https://api.github.com/users/test-org965/followers",
+                "following_url": "https://api.github.com/users/test-org965/following{/other_user}",
+                "gists_url": "https://api.github.com/users/test-org965/gists{/gist_id}",
+                "starred_url": "https://api.github.com/users/test-org965/starred{/owner}{/repo}",
+                "subscriptions_url": "https://api.github.com/users/test-org965/subscriptions",
+                "organizations_url": "https://api.github.com/users/test-org965/orgs",
+                "repos_url": "https://api.github.com/users/test-org965/repos",
+                "events_url": "https://api.github.com/users/test-org965/events{/privacy}",
+                "received_events_url": "https://api.github.com/users/test-org965/received_events",
+                "type": "Organization",
+                "site_admin": false
+            },
+            "repo": {
+                "id": 245057352,
+                "node_id": "MDEwOlJlcG9zaXRvcnkyNDUwNTczNTI=",
+                "name": "webhook-test",
+                "full_name": "test-org965/webhook-test",
+                "private": false,
+                "owner": {
+                    "login": "test-org965",
+                    "id": 61805552,
+                    "node_id": "MDEyOk9yZ2FuaXphdGlvbjYxODA1NTUy",
+                    "avatar_url": "https://avatars0.githubusercontent.com/u/61805552?v=4",
+                    "gravatar_id": "",
+                    "url": "https://api.github.com/users/test-org965",
+                    "html_url": "https://github.com/test-org965",
+                    "followers_url": "https://api.github.com/users/test-org965/followers",
+                    "following_url": "https://api.github.com/users/test-org965/following{/other_user}",
+                    "gists_url": "https://api.github.com/users/test-org965/gists{/gist_id}",
+                    "starred_url": "https://api.github.com/users/test-org965/starred{/owner}{/repo}",
+                    "subscriptions_url": "https://api.github.com/users/test-org965/subscriptions",
+                    "organizations_url": "https://api.github.com/users/test-org965/orgs",
+                    "repos_url": "https://api.github.com/users/test-org965/repos",
+                    "events_url": "https://api.github.com/users/test-org965/events{/privacy}",
+                    "received_events_url": "https://api.github.com/users/test-org965/received_events",
+                    "type": "Organization",
+                    "site_admin": false
+                },
+                "html_url": "https://github.com/test-org965/webhook-test",
+                "description": null,
+                "fork": false,
+                "url": "https://api.github.com/repos/test-org965/webhook-test",
+                "forks_url": "https://api.github.com/repos/test-org965/webhook-test/forks",
+                "keys_url": "https://api.github.com/repos/test-org965/webhook-test/keys{/key_id}",
+                "collaborators_url": "https://api.github.com/repos/test-org965/webhook-test/collaborators{/collaborator}",
+                "teams_url": "https://api.github.com/repos/test-org965/webhook-test/teams",
+                "hooks_url": "https://api.github.com/repos/test-org965/webhook-test/hooks",
+                "issue_events_url": "https://api.github.com/repos/test-org965/webhook-test/issues/events{/number}",
+                "events_url": "https://api.github.com/repos/test-org965/webhook-test/events",
+                "assignees_url": "https://api.github.com/repos/test-org965/webhook-test/assignees{/user}",
+                "branches_url": "https://api.github.com/repos/test-org965/webhook-test/branches{/branch}",
+                "tags_url": "https://api.github.com/repos/test-org965/webhook-test/tags",
+                "blobs_url": "https://api.github.com/repos/test-org965/webhook-test/git/blobs{/sha}",
+                "git_tags_url": "https://api.github.com/repos/test-org965/webhook-test/git/tags{/sha}",
+                "git_refs_url": "https://api.github.com/repos/test-org965/webhook-test/git/refs{/sha}",
+                "trees_url": "https://api.github.com/repos/test-org965/webhook-test/git/trees{/sha}",
+                "statuses_url": "https://api.github.com/repos/test-org965/webhook-test/statuses/{sha}",
+                "languages_url": "https://api.github.com/repos/test-org965/webhook-test/languages",
+                "stargazers_url": "https://api.github.com/repos/test-org965/webhook-test/stargazers",
+                "contributors_url": "https://api.github.com/repos/test-org965/webhook-test/contributors",
+                "subscribers_url": "https://api.github.com/repos/test-org965/webhook-test/subscribers",
+                "subscription_url": "https://api.github.com/repos/test-org965/webhook-test/subscription",
+                "commits_url": "https://api.github.com/repos/test-org965/webhook-test/commits{/sha}",
+                "git_commits_url": "https://api.github.com/repos/test-org965/webhook-test/git/commits{/sha}",
+                "comments_url": "https://api.github.com/repos/test-org965/webhook-test/comments{/number}",
+                "issue_comment_url": "https://api.github.com/repos/test-org965/webhook-test/issues/comments{/number}",
+                "contents_url": "https://api.github.com/repos/test-org965/webhook-test/contents/{+path}",
+                "compare_url": "https://api.github.com/repos/test-org965/webhook-test/compare/{base}...{head}",
+                "merges_url": "https://api.github.com/repos/test-org965/webhook-test/merges",
+                "archive_url": "https://api.github.com/repos/test-org965/webhook-test/{archive_format}{/ref}",
+                "downloads_url": "https://api.github.com/repos/test-org965/webhook-test/downloads",
+                "issues_url": "https://api.github.com/repos/test-org965/webhook-test/issues{/number}",
+                "pulls_url": "https://api.github.com/repos/test-org965/webhook-test/pulls{/number}",
+                "milestones_url": "https://api.github.com/repos/test-org965/webhook-test/milestones{/number}",
+                "notifications_url": "https://api.github.com/repos/test-org965/webhook-test/notifications{?since,all,participating}",
+                "labels_url": "https://api.github.com/repos/test-org965/webhook-test/labels{/name}",
+                "releases_url": "https://api.github.com/repos/test-org965/webhook-test/releases{/id}",
+                "deployments_url": "https://api.github.com/repos/test-org965/webhook-test/deployments",
+                "created_at": "2020-03-05T03:12:28Z",
+                "updated_at": "2020-03-06T02:20:29Z",
+                "pushed_at": "2020-03-06T02:22:44Z",
+                "git_url": "git://github.com/test-org965/webhook-test.git",
+                "ssh_url": "git@github.com:test-org965/webhook-test.git",
+                "clone_url": "https://github.com/test-org965/webhook-test.git",
+                "svn_url": "https://github.com/test-org965/webhook-test",
+                "homepage": null,
+                "size": 1,
+                "stargazers_count": 0,
+                "watchers_count": 0,
+                "language": null,
+                "has_issues": true,
+                "has_projects": true,
+                "has_downloads": true,
+                "has_wiki": true,
+                "has_pages": false,
+                "forks_count": 0,
+                "mirror_url": null,
+                "archived": false,
+                "disabled": false,
+                "open_issues_count": 1,
+                "license": null,
+                "forks": 0,
+                "open_issues": 1,
+                "watchers": 0,
+                "default_branch": "master"
+            }
+        },
+        "_links": {
+            "self": {
+                "href": "https://api.github.com/repos/test-org965/webhook-test/pulls/4"
+            },
+            "html": {
+                "href": "https://github.com/test-org965/webhook-test/pull/4"
+            },
+            "issue": {
+                "href": "https://api.github.com/repos/test-org965/webhook-test/issues/4"
+            },
+            "comments": {
+                "href": "https://api.github.com/repos/test-org965/webhook-test/issues/4/comments"
+            },
+            "review_comments": {
+                "href": "https://api.github.com/repos/test-org965/webhook-test/pulls/4/comments"
+            },
+            "review_comment": {
+                "href": "https://api.github.com/repos/test-org965/webhook-test/pulls/comments{/number}"
+            },
+            "commits": {
+                "href": "https://api.github.com/repos/test-org965/webhook-test/pulls/4/commits"
+            },
+            "statuses": {
+                "href": "https://api.github.com/repos/test-org965/webhook-test/statuses/08290f062a0fae68fc379cea22bc32ed1d518456"
+            }
+        },
+        "author_association": "CONTRIBUTOR",
+        "draft": false,
+        "merged": false,
+        "mergeable": true,
+        "rebaseable": true,
+        "mergeable_state": "clean",
+        "merged_by": null,
+        "comments": 0,
+        "review_comments": 0,
+        "maintainer_can_modify": false,
+        "commits": 1,
+        "additions": 1,
+        "deletions": 1,
+        "changed_files": 1
+    },
+    "requested_team": {
+        "name": "authority",
+        "id": 3694601,
+        "node_id": "MDQ6VGVhbTM2OTQ2MDE=",
+        "slug": "authority",
+        "description": "",
+        "privacy": "closed",
+        "url": "https://api.github.com/organizations/61805552/team/3694601",
+        "html_url": "https://github.com/orgs/test-org965/teams/authority",
+        "members_url": "https://api.github.com/organizations/61805552/team/3694601/members{/member}",
+        "repositories_url": "https://api.github.com/organizations/61805552/team/3694601/repos",
+        "permission": "pull",
+        "parent": null
+    },
+    "repository": {
+        "id": 245057352,
+        "node_id": "MDEwOlJlcG9zaXRvcnkyNDUwNTczNTI=",
+        "name": "webhook-test",
+        "full_name": "test-org965/webhook-test",
+        "private": false,
+        "owner": {
+            "login": "test-org965",
+            "id": 61805552,
+            "node_id": "MDEyOk9yZ2FuaXphdGlvbjYxODA1NTUy",
+            "avatar_url": "https://avatars0.githubusercontent.com/u/61805552?v=4",
+            "gravatar_id": "",
+            "url": "https://api.github.com/users/test-org965",
+            "html_url": "https://github.com/test-org965",
+            "followers_url": "https://api.github.com/users/test-org965/followers",
+            "following_url": "https://api.github.com/users/test-org965/following{/other_user}",
+            "gists_url": "https://api.github.com/users/test-org965/gists{/gist_id}",
+            "starred_url": "https://api.github.com/users/test-org965/starred{/owner}{/repo}",
+            "subscriptions_url": "https://api.github.com/users/test-org965/subscriptions",
+            "organizations_url": "https://api.github.com/users/test-org965/orgs",
+            "repos_url": "https://api.github.com/users/test-org965/repos",
+            "events_url": "https://api.github.com/users/test-org965/events{/privacy}",
+            "received_events_url": "https://api.github.com/users/test-org965/received_events",
+            "type": "Organization",
+            "site_admin": false
+        },
+        "html_url": "https://github.com/test-org965/webhook-test",
+        "description": null,
+        "fork": false,
+        "url": "https://api.github.com/repos/test-org965/webhook-test",
+        "forks_url": "https://api.github.com/repos/test-org965/webhook-test/forks",
+        "keys_url": "https://api.github.com/repos/test-org965/webhook-test/keys{/key_id}",
+        "collaborators_url": "https://api.github.com/repos/test-org965/webhook-test/collaborators{/collaborator}",
+        "teams_url": "https://api.github.com/repos/test-org965/webhook-test/teams",
+        "hooks_url": "https://api.github.com/repos/test-org965/webhook-test/hooks",
+        "issue_events_url": "https://api.github.com/repos/test-org965/webhook-test/issues/events{/number}",
+        "events_url": "https://api.github.com/repos/test-org965/webhook-test/events",
+        "assignees_url": "https://api.github.com/repos/test-org965/webhook-test/assignees{/user}",
+        "branches_url": "https://api.github.com/repos/test-org965/webhook-test/branches{/branch}",
+        "tags_url": "https://api.github.com/repos/test-org965/webhook-test/tags",
+        "blobs_url": "https://api.github.com/repos/test-org965/webhook-test/git/blobs{/sha}",
+        "git_tags_url": "https://api.github.com/repos/test-org965/webhook-test/git/tags{/sha}",
+        "git_refs_url": "https://api.github.com/repos/test-org965/webhook-test/git/refs{/sha}",
+        "trees_url": "https://api.github.com/repos/test-org965/webhook-test/git/trees{/sha}",
+        "statuses_url": "https://api.github.com/repos/test-org965/webhook-test/statuses/{sha}",
+        "languages_url": "https://api.github.com/repos/test-org965/webhook-test/languages",
+        "stargazers_url": "https://api.github.com/repos/test-org965/webhook-test/stargazers",
+        "contributors_url": "https://api.github.com/repos/test-org965/webhook-test/contributors",
+        "subscribers_url": "https://api.github.com/repos/test-org965/webhook-test/subscribers",
+        "subscription_url": "https://api.github.com/repos/test-org965/webhook-test/subscription",
+        "commits_url": "https://api.github.com/repos/test-org965/webhook-test/commits{/sha}",
+        "git_commits_url": "https://api.github.com/repos/test-org965/webhook-test/git/commits{/sha}",
+        "comments_url": "https://api.github.com/repos/test-org965/webhook-test/comments{/number}",
+        "issue_comment_url": "https://api.github.com/repos/test-org965/webhook-test/issues/comments{/number}",
+        "contents_url": "https://api.github.com/repos/test-org965/webhook-test/contents/{+path}",
+        "compare_url": "https://api.github.com/repos/test-org965/webhook-test/compare/{base}...{head}",
+        "merges_url": "https://api.github.com/repos/test-org965/webhook-test/merges",
+        "archive_url": "https://api.github.com/repos/test-org965/webhook-test/{archive_format}{/ref}",
+        "downloads_url": "https://api.github.com/repos/test-org965/webhook-test/downloads",
+        "issues_url": "https://api.github.com/repos/test-org965/webhook-test/issues{/number}",
+        "pulls_url": "https://api.github.com/repos/test-org965/webhook-test/pulls{/number}",
+        "milestones_url": "https://api.github.com/repos/test-org965/webhook-test/milestones{/number}",
+        "notifications_url": "https://api.github.com/repos/test-org965/webhook-test/notifications{?since,all,participating}",
+        "labels_url": "https://api.github.com/repos/test-org965/webhook-test/labels{/name}",
+        "releases_url": "https://api.github.com/repos/test-org965/webhook-test/releases{/id}",
+        "deployments_url": "https://api.github.com/repos/test-org965/webhook-test/deployments",
+        "created_at": "2020-03-05T03:12:28Z",
+        "updated_at": "2020-03-06T02:20:29Z",
+        "pushed_at": "2020-03-06T02:22:44Z",
+        "git_url": "git://github.com/test-org965/webhook-test.git",
+        "ssh_url": "git@github.com:test-org965/webhook-test.git",
+        "clone_url": "https://github.com/test-org965/webhook-test.git",
+        "svn_url": "https://github.com/test-org965/webhook-test",
+        "homepage": null,
+        "size": 1,
+        "stargazers_count": 0,
+        "watchers_count": 0,
+        "language": null,
+        "has_issues": true,
+        "has_projects": true,
+        "has_downloads": true,
+        "has_wiki": true,
+        "has_pages": false,
+        "forks_count": 0,
+        "mirror_url": null,
+        "archived": false,
+        "disabled": false,
+        "open_issues_count": 1,
+        "license": null,
+        "forks": 0,
+        "open_issues": 1,
+        "watchers": 0,
+        "default_branch": "master"
+    },
+    "organization": {
+        "login": "test-org965",
+        "id": 61805552,
+        "node_id": "MDEyOk9yZ2FuaXphdGlvbjYxODA1NTUy",
+        "url": "https://api.github.com/orgs/test-org965",
+        "repos_url": "https://api.github.com/orgs/test-org965/repos",
+        "events_url": "https://api.github.com/orgs/test-org965/events",
+        "hooks_url": "https://api.github.com/orgs/test-org965/hooks",
+        "issues_url": "https://api.github.com/orgs/test-org965/issues",
+        "members_url": "https://api.github.com/orgs/test-org965/members{/member}",
+        "public_members_url": "https://api.github.com/orgs/test-org965/public_members{/member}",
+        "avatar_url": "https://avatars0.githubusercontent.com/u/61805552?v=4",
+        "description": null
+    },
+    "sender": {
+        "login": "singhsourabh",
+        "id": 32551625,
+        "node_id": "MDQ6VXNlcjMyNTUxNjI1",
+        "avatar_url": "https://avatars1.githubusercontent.com/u/32551625?v=4",
+        "gravatar_id": "",
+        "url": "https://api.github.com/users/singhsourabh",
+        "html_url": "https://github.com/singhsourabh",
+        "followers_url": "https://api.github.com/users/singhsourabh/followers",
+        "following_url": "https://api.github.com/users/singhsourabh/following{/other_user}",
+        "gists_url": "https://api.github.com/users/singhsourabh/gists{/gist_id}",
+        "starred_url": "https://api.github.com/users/singhsourabh/starred{/owner}{/repo}",
+        "subscriptions_url": "https://api.github.com/users/singhsourabh/subscriptions",
+        "organizations_url": "https://api.github.com/users/singhsourabh/orgs",
+        "repos_url": "https://api.github.com/users/singhsourabh/repos",
+        "events_url": "https://api.github.com/users/singhsourabh/events{/privacy}",
+        "received_events_url": "https://api.github.com/users/singhsourabh/received_events",
+        "type": "User",
+        "site_admin": false
+    }
+}

zerver/webhooks/github/tests.py

@@ -274,11 +274,17 @@ class GithubWebhookTest(WebhookTestCase):
                                           expected_message)
 
     def test_pull_request_review_requested_multiple_reviwers_msg(self) -> None:
-        expected_message = u"**eeshangarg** requested [showell](https://github.com/showell), and [timabbott](https://github.com/timabbott) for a review on [PR #1](https://github.com/eeshangarg/Scheduler/pull/1)."
+        expected_message = u"**eeshangarg** requested [showell](https://github.com/showell) and [timabbott](https://github.com/timabbott) for a review on [PR #1](https://github.com/eeshangarg/Scheduler/pull/1)."
         self.send_and_test_stream_message('pull_request__review_requested_multiple_reviewers',
                                           'Scheduler / PR #1 This is just a test commit',
                                           expected_message)
 
+    def test_pull_request__review_requested_team_reviewer_msg(self) -> None:
+        expected_message = u"**singhsourabh** requested [shreyaskargit](https://github.com/shreyaskargit), [bajaj99prashant](https://github.com/bajaj99prashant), [review-team](https://github.com/orgs/test-org965/teams/review-team), [authority](https://github.com/orgs/test-org965/teams/authority) and [management](https://github.com/orgs/test-org965/teams/management) for a review on [PR #4](https://github.com/test-org965/webhook-test/pull/4)."
+        self.send_and_test_stream_message('pull_request__review_requested_team_reviewer',
+                                          'webhook-test / PR #4 testing webhook',
+                                          expected_message)
+
     def test_pull_request_review_requested_with_custom_topic_in_url(self) -> None:
         self.url = self.build_webhook_url(topic='notifications')
         expected_topic = u"notifications"

zerver/webhooks/github/view.py

@@ -313,8 +313,12 @@ def get_pull_request_review_comment_body(payload: Dict[str, Any],
 
 def get_pull_request_review_requested_body(payload: Dict[str, Any],
                                            include_title: Optional[bool]=False) -> str:
-    requested_reviewers = (payload['pull_request']['requested_reviewers'] or
+    requested_reviewer = [payload['requested_reviewer']] if 'requested_reviewer' in payload else []
-                           [payload['requested_reviewer']])
+    requested_reviewers = (payload['pull_request']['requested_reviewers'] or requested_reviewer)
+
+    requested_team = [payload['requested_team']] if 'requested_team' in payload else []
+    requested_team_reviewers = (payload['pull_request']['requested_teams'] or requested_team)
+
     sender = get_sender_name(payload)
     pr_number = payload['pull_request']['number']
     pr_url = payload['pull_request']['html_url']
@@ -323,13 +327,19 @@ def get_pull_request_review_requested_body(payload: Dict[str, Any],
                           "[PR #{pr_number} {title}]({pr_url}).")
     body = message_with_title if include_title else message
 
+    all_reviewers = []
+
+    for reviewer in requested_reviewers:
+        all_reviewers.append("[{login}]({html_url})".format(**reviewer))
+
+    for team_reviewer in requested_team_reviewers:
+        all_reviewers.append("[{name}]({html_url})".format(**team_reviewer))
+
     reviewers = ""
-    if len(requested_reviewers) == 1:
+    if len(all_reviewers) == 1:
-        reviewers = "[{login}]({html_url})".format(**requested_reviewers[0])
+        reviewers = all_reviewers[0]
     else:
-        for reviewer in requested_reviewers[:-1]:
+        reviewers = "{} and {}".format(', '.join(all_reviewers[:-1]), all_reviewers[-1])
-            reviewers += "[{login}]({html_url}), ".format(**reviewer)
-        reviewers += "and [{login}]({html_url})".format(**requested_reviewers[-1])
 
     return body.format(
         sender=sender,