// Copyright © 2017 Teddy Wing
//
// This file is part of Kipper.
//
// Kipper is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Kipper is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Kipper. If not, see <http://www.gnu.org/licenses/>.

extern crate json;

use std::error::Error;

#[derive(Debug)]
pub struct CommitRef {
    pub owner: String,
    pub repo: String,
    pub sha: String,
    pub branch: String,
}

impl CommitRef {
    pub fn new(
        mut github_push_event: json::JsonValue
    ) -> Result<CommitRef, Box<Error>> {
        Ok(
            CommitRef {
                owner: github_push_event["pull_request"]["head"]["repo"]["owner"]["login"].take_string().unwrap_or_default(),
                repo: github_push_event["pull_request"]["head"]["repo"]["name"].take_string().unwrap_or_default(),
                sha: github_push_event["pull_request"]["head"]["sha"].take_string().unwrap_or_default(),
                branch: github_push_event["pull_request"]["head"]["ref"].take_string().unwrap_or_default(),
            }
        )
    }
}

pub fn pull_request_opened_or_synchronized(
    mut github_push_event: json::JsonValue
) -> bool {
    let action = github_push_event["action"].take_string().unwrap_or_default();

    if action == "opened" || action == "synchronize" {
        return true
    }

    false
}


#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn extracts_project_and_commit_data_from_payload() {
        let payload = r#"{
          "action": "synchronize",
          "number": 1,
          "pull_request": {
            "url": "https://api.github.com/repos/baxterthehacker/public-repo/pulls/1",
            "id": 34778301,
            "html_url": "https://github.com/baxterthehacker/public-repo/pull/1",
            "diff_url": "https://github.com/baxterthehacker/public-repo/pull/1.diff",
            "patch_url": "https://github.com/baxterthehacker/public-repo/pull/1.patch",
            "issue_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/1",
            "number": 1,
            "state": "open",
            "locked": false,
            "title": "Update the README with new information",
            "user": {
              "login": "baxterthehacker",
              "id": 6752317,
              "avatar_url": "https://avatars.githubusercontent.com/u/6752317?v=3",
              "gravatar_id": "",
              "url": "https://api.github.com/users/baxterthehacker",
              "html_url": "https://github.com/baxterthehacker",
              "followers_url": "https://api.github.com/users/baxterthehacker/followers",
              "following_url": "https://api.github.com/users/baxterthehacker/following{/other_user}",
              "gists_url": "https://api.github.com/users/baxterthehacker/gists{/gist_id}",
              "starred_url": "https://api.github.com/users/baxterthehacker/starred{/owner}{/repo}",
              "subscriptions_url": "https://api.github.com/users/baxterthehacker/subscriptions",
              "organizations_url": "https://api.github.com/users/baxterthehacker/orgs",
              "repos_url": "https://api.github.com/users/baxterthehacker/repos",
              "events_url": "https://api.github.com/users/baxterthehacker/events{/privacy}",
              "received_events_url": "https://api.github.com/users/baxterthehacker/received_events",
              "type": "User",
              "site_admin": false
            },
            "body": "This is a pretty simple change that we need to pull into master.",
            "created_at": "2015-05-05T23:40:27Z",
            "updated_at": "2015-05-05T23:40:27Z",
            "closed_at": null,
            "merged_at": null,
            "merge_commit_sha": null,
            "assignee": null,
            "milestone": null,
            "commits_url": "https://api.github.com/repos/baxterthehacker/public-repo/pulls/1/commits",
            "review_comments_url": "https://api.github.com/repos/baxterthehacker/public-repo/pulls/1/comments",
            "review_comment_url": "https://api.github.com/repos/baxterthehacker/public-repo/pulls/comments{/number}",
            "comments_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/1/comments",
            "statuses_url": "https://api.github.com/repos/baxterthehacker/public-repo/statuses/0d1a26e67d8f5eaf1f6ba5c57fc3c7d91ac0fd1c",
            "head": {
              "label": "baxterthehacker:changes",
              "ref": "changes",
              "sha": "0d1a26e67d8f5eaf1f6ba5c57fc3c7d91ac0fd1c",
              "user": {
                "login": "baxterthehacker",
                "id": 6752317,
                "avatar_url": "https://avatars.githubusercontent.com/u/6752317?v=3",
                "gravatar_id": "",
                "url": "https://api.github.com/users/baxterthehacker",
                "html_url": "https://github.com/baxterthehacker",
                "followers_url": "https://api.github.com/users/baxterthehacker/followers",
                "following_url": "https://api.github.com/users/baxterthehacker/following{/other_user}",
                "gists_url": "https://api.github.com/users/baxterthehacker/gists{/gist_id}",
                "starred_url": "https://api.github.com/users/baxterthehacker/starred{/owner}{/repo}",
                "subscriptions_url": "https://api.github.com/users/baxterthehacker/subscriptions",
                "organizations_url": "https://api.github.com/users/baxterthehacker/orgs",
                "repos_url": "https://api.github.com/users/baxterthehacker/repos",
                "events_url": "https://api.github.com/users/baxterthehacker/events{/privacy}",
                "received_events_url": "https://api.github.com/users/baxterthehacker/received_events",
                "type": "User",
                "site_admin": false
              },
              "repo": {
                "id": 35129377,
                "name": "public-repo",
                "full_name": "baxterthehacker/public-repo",
                "owner": {
                  "login": "baxterthehacker",
                  "id": 6752317,
                  "avatar_url": "https://avatars.githubusercontent.com/u/6752317?v=3",
                  "gravatar_id": "",
                  "url": "https://api.github.com/users/baxterthehacker",
                  "html_url": "https://github.com/baxterthehacker",
                  "followers_url": "https://api.github.com/users/baxterthehacker/followers",
                  "following_url": "https://api.github.com/users/baxterthehacker/following{/other_user}",
                  "gists_url": "https://api.github.com/users/baxterthehacker/gists{/gist_id}",
                  "starred_url": "https://api.github.com/users/baxterthehacker/starred{/owner}{/repo}",
                  "subscriptions_url": "https://api.github.com/users/baxterthehacker/subscriptions",
                  "organizations_url": "https://api.github.com/users/baxterthehacker/orgs",
                  "repos_url": "https://api.github.com/users/baxterthehacker/repos",
                  "events_url": "https://api.github.com/users/baxterthehacker/events{/privacy}",
                  "received_events_url": "https://api.github.com/users/baxterthehacker/received_events",
                  "type": "User",
                  "site_admin": false
                },
                "private": false,
                "html_url": "https://github.com/baxterthehacker/public-repo",
                "description": "",
                "fork": false,
                "url": "https://api.github.com/repos/baxterthehacker/public-repo",
                "forks_url": "https://api.github.com/repos/baxterthehacker/public-repo/forks",
                "keys_url": "https://api.github.com/repos/baxterthehacker/public-repo/keys{/key_id}",
                "collaborators_url": "https://api.github.com/repos/baxterthehacker/public-repo/collaborators{/collaborator}",
                "teams_url": "https://api.github.com/repos/baxterthehacker/public-repo/teams",
                "hooks_url": "https://api.github.com/repos/baxterthehacker/public-repo/hooks",
                "issue_events_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/events{/number}",
                "events_url": "https://api.github.com/repos/baxterthehacker/public-repo/events",
                "assignees_url": "https://api.github.com/repos/baxterthehacker/public-repo/assignees{/user}",
                "branches_url": "https://api.github.com/repos/baxterthehacker/public-repo/branches{/branch}",
                "tags_url": "https://api.github.com/repos/baxterthehacker/public-repo/tags",
                "blobs_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/blobs{/sha}",
                "git_tags_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/tags{/sha}",
                "git_refs_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/refs{/sha}",
                "trees_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/trees{/sha}",
                "statuses_url": "https://api.github.com/repos/baxterthehacker/public-repo/statuses/{sha}",
                "languages_url": "https://api.github.com/repos/baxterthehacker/public-repo/languages",
                "stargazers_url": "https://api.github.com/repos/baxterthehacker/public-repo/stargazers",
                "contributors_url": "https://api.github.com/repos/baxterthehacker/public-repo/contributors",
                "subscribers_url": "https://api.github.com/repos/baxterthehacker/public-repo/subscribers",
                "subscription_url": "https://api.github.com/repos/baxterthehacker/public-repo/subscription",
                "commits_url": "https://api.github.com/repos/baxterthehacker/public-repo/commits{/sha}",
                "git_commits_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/commits{/sha}",
                "comments_url": "https://api.github.com/repos/baxterthehacker/public-repo/comments{/number}",
                "issue_comment_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/comments{/number}",
                "contents_url": "https://api.github.com/repos/baxterthehacker/public-repo/contents/{+path}",
                "compare_url": "https://api.github.com/repos/baxterthehacker/public-repo/compare/{base}...{head}",
                "merges_url": "https://api.github.com/repos/baxterthehacker/public-repo/merges",
                "archive_url": "https://api.github.com/repos/baxterthehacker/public-repo/{archive_format}{/ref}",
                "downloads_url": "https://api.github.com/repos/baxterthehacker/public-repo/downloads",
                "issues_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues{/number}",
                "pulls_url": "https://api.github.com/repos/baxterthehacker/public-repo/pulls{/number}",
                "milestones_url": "https://api.github.com/repos/baxterthehacker/public-repo/milestones{/number}",
                "notifications_url": "https://api.github.com/repos/baxterthehacker/public-repo/notifications{?since,all,participating}",
                "labels_url": "https://api.github.com/repos/baxterthehacker/public-repo/labels{/name}",
                "releases_url": "https://api.github.com/repos/baxterthehacker/public-repo/releases{/id}",
                "created_at": "2015-05-05T23:40:12Z",
                "updated_at": "2015-05-05T23:40:12Z",
                "pushed_at": "2015-05-05T23:40:26Z",
                "git_url": "git://github.com/baxterthehacker/public-repo.git",
                "ssh_url": "git@github.com:baxterthehacker/public-repo.git",
                "clone_url": "https://github.com/baxterthehacker/public-repo.git",
                "svn_url": "https://github.com/baxterthehacker/public-repo",
                "homepage": null,
                "size": 0,
                "stargazers_count": 0,
                "watchers_count": 0,
                "language": null,
                "has_issues": true,
                "has_downloads": true,
                "has_wiki": true,
                "has_pages": true,
                "forks_count": 0,
                "mirror_url": null,
                "open_issues_count": 1,
                "forks": 0,
                "open_issues": 1,
                "watchers": 0,
                "default_branch": "master"
              }
            },
            "base": {
              "label": "baxterthehacker:master",
              "ref": "master",
              "sha": "9049f1265b7d61be4a8904a9a27120d2064dab3b",
              "user": {
                "login": "baxterthehacker",
                "id": 6752317,
                "avatar_url": "https://avatars.githubusercontent.com/u/6752317?v=3",
                "gravatar_id": "",
                "url": "https://api.github.com/users/baxterthehacker",
                "html_url": "https://github.com/baxterthehacker",
                "followers_url": "https://api.github.com/users/baxterthehacker/followers",
                "following_url": "https://api.github.com/users/baxterthehacker/following{/other_user}",
                "gists_url": "https://api.github.com/users/baxterthehacker/gists{/gist_id}",
                "starred_url": "https://api.github.com/users/baxterthehacker/starred{/owner}{/repo}",
                "subscriptions_url": "https://api.github.com/users/baxterthehacker/subscriptions",
                "organizations_url": "https://api.github.com/users/baxterthehacker/orgs",
                "repos_url": "https://api.github.com/users/baxterthehacker/repos",
                "events_url": "https://api.github.com/users/baxterthehacker/events{/privacy}",
                "received_events_url": "https://api.github.com/users/baxterthehacker/received_events",
                "type": "User",
                "site_admin": false
              },
              "repo": {
                "id": 35129377,
                "name": "public-repo",
                "full_name": "baxterthehacker/public-repo",
                "owner": {
                  "login": "baxterthehacker",
                  "id": 6752317,
                  "avatar_url": "https://avatars.githubusercontent.com/u/6752317?v=3",
                  "gravatar_id": "",
                  "url": "https://api.github.com/users/baxterthehacker",
                  "html_url": "https://github.com/baxterthehacker",
                  "followers_url": "https://api.github.com/users/baxterthehacker/followers",
                  "following_url": "https://api.github.com/users/baxterthehacker/following{/other_user}",
                  "gists_url": "https://api.github.com/users/baxterthehacker/gists{/gist_id}",
                  "starred_url": "https://api.github.com/users/baxterthehacker/starred{/owner}{/repo}",
                  "subscriptions_url": "https://api.github.com/users/baxterthehacker/subscriptions",
                  "organizations_url": "https://api.github.com/users/baxterthehacker/orgs",
                  "repos_url": "https://api.github.com/users/baxterthehacker/repos",
                  "events_url": "https://api.github.com/users/baxterthehacker/events{/privacy}",
                  "received_events_url": "https://api.github.com/users/baxterthehacker/received_events",
                  "type": "User",
                  "site_admin": false
                },
                "private": false,
                "html_url": "https://github.com/baxterthehacker/public-repo",
                "description": "",
                "fork": false,
                "url": "https://api.github.com/repos/baxterthehacker/public-repo",
                "forks_url": "https://api.github.com/repos/baxterthehacker/public-repo/forks",
                "keys_url": "https://api.github.com/repos/baxterthehacker/public-repo/keys{/key_id}",
                "collaborators_url": "https://api.github.com/repos/baxterthehacker/public-repo/collaborators{/collaborator}",
                "teams_url": "https://api.github.com/repos/baxterthehacker/public-repo/teams",
                "hooks_url": "https://api.github.com/repos/baxterthehacker/public-repo/hooks",
                "issue_events_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/events{/number}",
                "events_url": "https://api.github.com/repos/baxterthehacker/public-repo/events",
                "assignees_url": "https://api.github.com/repos/baxterthehacker/public-repo/assignees{/user}",
                "branches_url": "https://api.github.com/repos/baxterthehacker/public-repo/branches{/branch}",
                "tags_url": "https://api.github.com/repos/baxterthehacker/public-repo/tags",
                "blobs_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/blobs{/sha}",
                "git_tags_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/tags{/sha}",
                "git_refs_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/refs{/sha}",
                "trees_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/trees{/sha}",
                "statuses_url": "https://api.github.com/repos/baxterthehacker/public-repo/statuses/{sha}",
                "languages_url": "https://api.github.com/repos/baxterthehacker/public-repo/languages",
                "stargazers_url": "https://api.github.com/repos/baxterthehacker/public-repo/stargazers",
                "contributors_url": "https://api.github.com/repos/baxterthehacker/public-repo/contributors",
                "subscribers_url": "https://api.github.com/repos/baxterthehacker/public-repo/subscribers",
                "subscription_url": "https://api.github.com/repos/baxterthehacker/public-repo/subscription",
                "commits_url": "https://api.github.com/repos/baxterthehacker/public-repo/commits{/sha}",
                "git_commits_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/commits{/sha}",
                "comments_url": "https://api.github.com/repos/baxterthehacker/public-repo/comments{/number}",
                "issue_comment_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/comments{/number}",
                "contents_url": "https://api.github.com/repos/baxterthehacker/public-repo/contents/{+path}",
                "compare_url": "https://api.github.com/repos/baxterthehacker/public-repo/compare/{base}...{head}",
                "merges_url": "https://api.github.com/repos/baxterthehacker/public-repo/merges",
                "archive_url": "https://api.github.com/repos/baxterthehacker/public-repo/{archive_format}{/ref}",
                "downloads_url": "https://api.github.com/repos/baxterthehacker/public-repo/downloads",
                "issues_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues{/number}",
                "pulls_url": "https://api.github.com/repos/baxterthehacker/public-repo/pulls{/number}",
                "milestones_url": "https://api.github.com/repos/baxterthehacker/public-repo/milestones{/number}",
                "notifications_url": "https://api.github.com/repos/baxterthehacker/public-repo/notifications{?since,all,participating}",
                "labels_url": "https://api.github.com/repos/baxterthehacker/public-repo/labels{/name}",
                "releases_url": "https://api.github.com/repos/baxterthehacker/public-repo/releases{/id}",
                "created_at": "2015-05-05T23:40:12Z",
                "updated_at": "2015-05-05T23:40:12Z",
                "pushed_at": "2015-05-05T23:40:26Z",
                "git_url": "git://github.com/baxterthehacker/public-repo.git",
                "ssh_url": "git@github.com:baxterthehacker/public-repo.git",
                "clone_url": "https://github.com/baxterthehacker/public-repo.git",
                "svn_url": "https://github.com/baxterthehacker/public-repo",
                "homepage": null,
                "size": 0,
                "stargazers_count": 0,
                "watchers_count": 0,
                "language": null,
                "has_issues": true,
                "has_downloads": true,
                "has_wiki": true,
                "has_pages": true,
                "forks_count": 0,
                "mirror_url": null,
                "open_issues_count": 1,
                "forks": 0,
                "open_issues": 1,
                "watchers": 0,
                "default_branch": "master"
              }
            },
            "_links": {
              "self": {
                "href": "https://api.github.com/repos/baxterthehacker/public-repo/pulls/1"
              },
              "html": {
                "href": "https://github.com/baxterthehacker/public-repo/pull/1"
              },
              "issue": {
                "href": "https://api.github.com/repos/baxterthehacker/public-repo/issues/1"
              },
              "comments": {
                "href": "https://api.github.com/repos/baxterthehacker/public-repo/issues/1/comments"
              },
              "review_comments": {
                "href": "https://api.github.com/repos/baxterthehacker/public-repo/pulls/1/comments"
              },
              "review_comment": {
                "href": "https://api.github.com/repos/baxterthehacker/public-repo/pulls/comments{/number}"
              },
              "commits": {
                "href": "https://api.github.com/repos/baxterthehacker/public-repo/pulls/1/commits"
              },
              "statuses": {
                "href": "https://api.github.com/repos/baxterthehacker/public-repo/statuses/0d1a26e67d8f5eaf1f6ba5c57fc3c7d91ac0fd1c"
              }
            },
            "merged": false,
            "mergeable": null,
            "mergeable_state": "unknown",
            "merged_by": null,
            "comments": 0,
            "review_comments": 0,
            "commits": 1,
            "additions": 1,
            "deletions": 1,
            "changed_files": 1
          },
          "repository": {
            "id": 35129377,
            "name": "public-repo",
            "full_name": "baxterthehacker/public-repo",
            "owner": {
              "login": "baxterthehacker",
              "id": 6752317,
              "avatar_url": "https://avatars.githubusercontent.com/u/6752317?v=3",
              "gravatar_id": "",
              "url": "https://api.github.com/users/baxterthehacker",
              "html_url": "https://github.com/baxterthehacker",
              "followers_url": "https://api.github.com/users/baxterthehacker/followers",
              "following_url": "https://api.github.com/users/baxterthehacker/following{/other_user}",
              "gists_url": "https://api.github.com/users/baxterthehacker/gists{/gist_id}",
              "starred_url": "https://api.github.com/users/baxterthehacker/starred{/owner}{/repo}",
              "subscriptions_url": "https://api.github.com/users/baxterthehacker/subscriptions",
              "organizations_url": "https://api.github.com/users/baxterthehacker/orgs",
              "repos_url": "https://api.github.com/users/baxterthehacker/repos",
              "events_url": "https://api.github.com/users/baxterthehacker/events{/privacy}",
              "received_events_url": "https://api.github.com/users/baxterthehacker/received_events",
              "type": "User",
              "site_admin": false
            },
            "private": false,
            "html_url": "https://github.com/baxterthehacker/public-repo",
            "description": "",
            "fork": false,
            "url": "https://api.github.com/repos/baxterthehacker/public-repo",
            "forks_url": "https://api.github.com/repos/baxterthehacker/public-repo/forks",
            "keys_url": "https://api.github.com/repos/baxterthehacker/public-repo/keys{/key_id}",
            "collaborators_url": "https://api.github.com/repos/baxterthehacker/public-repo/collaborators{/collaborator}",
            "teams_url": "https://api.github.com/repos/baxterthehacker/public-repo/teams",
            "hooks_url": "https://api.github.com/repos/baxterthehacker/public-repo/hooks",
            "issue_events_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/events{/number}",
            "events_url": "https://api.github.com/repos/baxterthehacker/public-repo/events",
            "assignees_url": "https://api.github.com/repos/baxterthehacker/public-repo/assignees{/user}",
            "branches_url": "https://api.github.com/repos/baxterthehacker/public-repo/branches{/branch}",
            "tags_url": "https://api.github.com/repos/baxterthehacker/public-repo/tags",
            "blobs_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/blobs{/sha}",
            "git_tags_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/tags{/sha}",
            "git_refs_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/refs{/sha}",
            "trees_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/trees{/sha}",
            "statuses_url": "https://api.github.com/repos/baxterthehacker/public-repo/statuses/{sha}",
            "languages_url": "https://api.github.com/repos/baxterthehacker/public-repo/languages",
            "stargazers_url": "https://api.github.com/repos/baxterthehacker/public-repo/stargazers",
            "contributors_url": "https://api.github.com/repos/baxterthehacker/public-repo/contributors",
            "subscribers_url": "https://api.github.com/repos/baxterthehacker/public-repo/subscribers",
            "subscription_url": "https://api.github.com/repos/baxterthehacker/public-repo/subscription",
            "commits_url": "https://api.github.com/repos/baxterthehacker/public-repo/commits{/sha}",
            "git_commits_url": "https://api.github.com/repos/baxterthehacker/public-repo/git/commits{/sha}",
            "comments_url": "https://api.github.com/repos/baxterthehacker/public-repo/comments{/number}",
            "issue_comment_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/comments{/number}",
            "contents_url": "https://api.github.com/repos/baxterthehacker/public-repo/contents/{+path}",
            "compare_url": "https://api.github.com/repos/baxterthehacker/public-repo/compare/{base}...{head}",
            "merges_url": "https://api.github.com/repos/baxterthehacker/public-repo/merges",
            "archive_url": "https://api.github.com/repos/baxterthehacker/public-repo/{archive_format}{/ref}",
            "downloads_url": "https://api.github.com/repos/baxterthehacker/public-repo/downloads",
            "issues_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues{/number}",
            "pulls_url": "https://api.github.com/repos/baxterthehacker/public-repo/pulls{/number}",
            "milestones_url": "https://api.github.com/repos/baxterthehacker/public-repo/milestones{/number}",
            "notifications_url": "https://api.github.com/repos/baxterthehacker/public-repo/notifications{?since,all,participating}",
            "labels_url": "https://api.github.com/repos/baxterthehacker/public-repo/labels{/name}",
            "releases_url": "https://api.github.com/repos/baxterthehacker/public-repo/releases{/id}",
            "created_at": "2015-05-05T23:40:12Z",
            "updated_at": "2015-05-05T23:40:12Z",
            "pushed_at": "2015-05-05T23:40:26Z",
            "git_url": "git://github.com/baxterthehacker/public-repo.git",
            "ssh_url": "git@github.com:baxterthehacker/public-repo.git",
            "clone_url": "https://github.com/baxterthehacker/public-repo.git",
            "svn_url": "https://github.com/baxterthehacker/public-repo",
            "homepage": null,
            "size": 0,
            "stargazers_count": 0,
            "watchers_count": 0,
            "language": null,
            "has_issues": true,
            "has_downloads": true,
            "has_wiki": true,
            "has_pages": true,
            "forks_count": 0,
            "mirror_url": null,
            "open_issues_count": 1,
            "forks": 0,
            "open_issues": 1,
            "watchers": 0,
            "default_branch": "master"
          },
          "sender": {
            "login": "baxterthehacker",
            "id": 6752317,
            "avatar_url": "https://avatars.githubusercontent.com/u/6752317?v=3",
            "gravatar_id": "",
            "url": "https://api.github.com/users/baxterthehacker",
            "html_url": "https://github.com/baxterthehacker",
            "followers_url": "https://api.github.com/users/baxterthehacker/followers",
            "following_url": "https://api.github.com/users/baxterthehacker/following{/other_user}",
            "gists_url": "https://api.github.com/users/baxterthehacker/gists{/gist_id}",
            "starred_url": "https://api.github.com/users/baxterthehacker/starred{/owner}{/repo}",
            "subscriptions_url": "https://api.github.com/users/baxterthehacker/subscriptions",
            "organizations_url": "https://api.github.com/users/baxterthehacker/orgs",
            "repos_url": "https://api.github.com/users/baxterthehacker/repos",
            "events_url": "https://api.github.com/users/baxterthehacker/events{/privacy}",
            "received_events_url": "https://api.github.com/users/baxterthehacker/received_events",
            "type": "User",
            "site_admin": false
          },
          "installation": {
            "id": 234
          }
        }"#;

        let json = json::parse(payload)
            .expect("Failed to parse payload.");

        let commit_ref = CommitRef::new(json)
            .expect("Failed to create CommitRef from payload");

        assert_eq!(commit_ref.owner, "baxterthehacker");
        assert_eq!(commit_ref.repo, "public-repo");
        assert_eq!(commit_ref.sha, "0d1a26e67d8f5eaf1f6ba5c57fc3c7d91ac0fd1c");
        assert_eq!(commit_ref.branch, "changes");
    }

    #[test]
    fn pull_request_opened_or_synchronized_returns_true_when_opened() {
        let payload = r#"{
            "action": "opened"
        }"#;

        let json = json::parse(payload)
            .expect("Failed to parse payload.");

        assert_eq!(
            pull_request_opened_or_synchronized(json),
            true
        );
    }

    #[test]
    fn pull_request_opened_or_synchronized_returns_true_when_synchronized() {
        let payload = r#"{
            "action": "synchronize"
        }"#;

        let json = json::parse(payload)
            .expect("Failed to parse payload.");

        assert_eq!(
            pull_request_opened_or_synchronized(json),
            true
        );
    }

    #[test]
    fn pull_request_opened_or_synchronized_returns_false_when_not_opened_or_synchronized() {
        // "assigned", "unassigned", "review_requested",
        // "review_request_removed", "labeled", "unlabeled", "opened",
        // "edited", "closed", or "reopened"
        let payload = r#"{
            "action": "review_requested"
        }"#;

        let json = json::parse(payload)
            .expect("Failed to parse payload.");

        assert_eq!(
            pull_request_opened_or_synchronized(json),
            false
        );
    }
}