test: add tests for app

__tests__/fixtures/512b-rsa-example-keypair.pem

@@ -0,0 +1,9 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIBOwIBAAJBAJv8ZpB5hEK7qxP9K3v43hUS5fGT4waKe7ix4Z4mu5UBv+cw7WSF
+At0Vaag0sAbsPzU8Hhsrj/qPABvfB8asUwcCAwEAAQJAG0r3ezH35WFG1tGGaUOr
+QA61cyaII53ZdgCR1IU8bx7AUevmkFtBf+aqMWusWVOWJvGu2r5VpHVAIl8nF6DS
+kQIhAMjEJ3zVYa2/Mo4ey+iU9J9Vd+WoyXDQD4EEtwmyG1PpAiEAxuZlvhDIbbce
+7o5BvOhnCZ2N7kYb1ZC57g3F+cbJyW8CIQCbsDGHBto2qJyFxbAO7uQ8Y0UVHa0J
+BO/g900SAcJbcQIgRtEljIShOB8pDjrsQPxmI1BLhnjD1EhRSubwhDw5AFUCIQCN
+A24pDtdOHydwtSB5+zFqFLfmVZplQM/g5kb4so70Yw==
+-----END RSA PRIVATE KEY-----

__tests__/fixtures/github/app/access_tokens.json

@@ -0,0 +1,128 @@
+{
+  "token": "v1.1f699f1069f60xxx",
+  "expires_at": "2222-07-11T22:14:10Z",
+  "permissions": {
+    "issues": "write",
+    "contents": "read"
+  },
+  "repository_selection": "selected",
+  "repositories": [
+    {
+      "id": 1296269,
+      "node_id": "MDEwOlJlcG9zaXRvcnkxMjk2MjY5",
+      "name": "Hello-World",
+      "full_name": "octocat/Hello-World",
+      "owner": {
+        "login": "octocat",
+        "id": 1,
+        "node_id": "MDQ6VXNlcjE=",
+        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
+        "gravatar_id": "",
+        "url": "https://api.github.com/users/octocat",
+        "html_url": "https://github.com/octocat",
+        "followers_url": "https://api.github.com/users/octocat/followers",
+        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
+        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
+        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
+        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
+        "organizations_url": "https://api.github.com/users/octocat/orgs",
+        "repos_url": "https://api.github.com/users/octocat/repos",
+        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
+        "received_events_url": "https://api.github.com/users/octocat/received_events",
+        "type": "User",
+        "site_admin": false
+      },
+      "private": false,
+      "html_url": "https://github.com/octocat/Hello-World",
+      "description": "This your first repo!",
+      "fork": false,
+      "url": "https://api.github.com/repos/octocat/Hello-World",
+      "archive_url": "https://api.github.com/repos/octocat/Hello-World/{archive_format}{/ref}",
+      "assignees_url": "https://api.github.com/repos/octocat/Hello-World/assignees{/user}",
+      "blobs_url": "https://api.github.com/repos/octocat/Hello-World/git/blobs{/sha}",
+      "branches_url": "https://api.github.com/repos/octocat/Hello-World/branches{/branch}",
+      "collaborators_url": "https://api.github.com/repos/octocat/Hello-World/collaborators{/collaborator}",
+      "comments_url": "https://api.github.com/repos/octocat/Hello-World/comments{/number}",
+      "commits_url": "https://api.github.com/repos/octocat/Hello-World/commits{/sha}",
+      "compare_url": "https://api.github.com/repos/octocat/Hello-World/compare/{base}...{head}",
+      "contents_url": "https://api.github.com/repos/octocat/Hello-World/contents/{+path}",
+      "contributors_url": "https://api.github.com/repos/octocat/Hello-World/contributors",
+      "deployments_url": "https://api.github.com/repos/octocat/Hello-World/deployments",
+      "downloads_url": "https://api.github.com/repos/octocat/Hello-World/downloads",
+      "events_url": "https://api.github.com/repos/octocat/Hello-World/events",
+      "forks_url": "https://api.github.com/repos/octocat/Hello-World/forks",
+      "git_commits_url": "https://api.github.com/repos/octocat/Hello-World/git/commits{/sha}",
+      "git_refs_url": "https://api.github.com/repos/octocat/Hello-World/git/refs{/sha}",
+      "git_tags_url": "https://api.github.com/repos/octocat/Hello-World/git/tags{/sha}",
+      "git_url": "git:github.com/octocat/Hello-World.git",
+      "issue_comment_url": "https://api.github.com/repos/octocat/Hello-World/issues/comments{/number}",
+      "issue_events_url": "https://api.github.com/repos/octocat/Hello-World/issues/events{/number}",
+      "issues_url": "https://api.github.com/repos/octocat/Hello-World/issues{/number}",
+      "keys_url": "https://api.github.com/repos/octocat/Hello-World/keys{/key_id}",
+      "labels_url": "https://api.github.com/repos/octocat/Hello-World/labels{/name}",
+      "languages_url": "https://api.github.com/repos/octocat/Hello-World/languages",
+      "merges_url": "https://api.github.com/repos/octocat/Hello-World/merges",
+      "milestones_url": "https://api.github.com/repos/octocat/Hello-World/milestones{/number}",
+      "notifications_url": "https://api.github.com/repos/octocat/Hello-World/notifications{?since,all,participating}",
+      "pulls_url": "https://api.github.com/repos/octocat/Hello-World/pulls{/number}",
+      "releases_url": "https://api.github.com/repos/octocat/Hello-World/releases{/id}",
+      "ssh_url": "[email protected]:octocat/Hello-World.git",
+      "stargazers_url": "https://api.github.com/repos/octocat/Hello-World/stargazers",
+      "statuses_url": "https://api.github.com/repos/octocat/Hello-World/statuses/{sha}",
+      "subscribers_url": "https://api.github.com/repos/octocat/Hello-World/subscribers",
+      "subscription_url": "https://api.github.com/repos/octocat/Hello-World/subscription",
+      "tags_url": "https://api.github.com/repos/octocat/Hello-World/tags",
+      "teams_url": "https://api.github.com/repos/octocat/Hello-World/teams",
+      "trees_url": "https://api.github.com/repos/octocat/Hello-World/git/trees{/sha}",
+      "clone_url": "https://github.com/octocat/Hello-World.git",
+      "mirror_url": "git:git.example.com/octocat/Hello-World",
+      "hooks_url": "https://api.github.com/repos/octocat/Hello-World/hooks",
+      "svn_url": "https://svn.github.com/octocat/Hello-World",
+      "homepage": "https://github.com",
+      "language": null,
+      "forks_count": 9,
+      "stargazers_count": 80,
+      "watchers_count": 80,
+      "size": 108,
+      "default_branch": "master",
+      "open_issues_count": 0,
+      "is_template": true,
+      "topics": ["octocat", "atom", "electron", "api"],
+      "has_issues": true,
+      "has_projects": true,
+      "has_wiki": true,
+      "has_pages": false,
+      "has_downloads": true,
+      "archived": false,
+      "disabled": false,
+      "visibility": "public",
+      "pushed_at": "2011-01-26T19:06:43Z",
+      "created_at": "2011-01-26T19:01:12Z",
+      "updated_at": "2011-01-26T19:14:43Z",
+      "permissions": {
+        "admin": false,
+        "push": false,
+        "pull": true
+      },
+      "allow_rebase_merge": true,
+      "template_repository": null,
+      "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+      "allow_squash_merge": true,
+      "delete_branch_on_merge": true,
+      "allow_merge_commit": true,
+      "subscribers_count": 42,
+      "network_count": 0,
+      "license": {
+        "key": "mit",
+        "name": "MIT License",
+        "url": "https://api.github.com/licenses/mit",
+        "spdx_id": "MIT",
+        "node_id": "MDc6TGljZW5zZW1pdA==",
+        "html_url": "https://github.com/licenses/mit"
+      },
+      "forks": 1,
+      "open_issues": 1,
+      "watchers": 1
+    }
+  ]
+}