diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..fa6f8ca3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,131 @@
+
+# Created by https://www.gitignore.io/api/macos,windows,linux,node
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.gitignore.io/api/macos,windows,linux,node
+
+package-lock.json
+yarn.lock
diff --git a/.npmrc b/.npmrc
new file mode 100644
index 00000000..43c97e71
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+package-lock=false
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 00000000..2cf6308c
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,26 @@
+language: node_js
+services:
+  - docker
+notifications:
+  email: false
+node_js:
+  - 9
+  - 8
+
+# Trigger a push build on master and greenkeeper branches + PRs build on every branches
+# Avoid double build on PRs (See https://github.com/travis-ci/travis-ci/issues/1147)
+branches:
+  only:
+    - master
+    - /^greenkeeper.*$/
+
+# Retry install on fail to avoid failing a build on network/disk/external errors
+install:
+  - travis_retry npm install
+
+script:
+  - npm run test
+
+after_success:
+  - npm run codecov
+  - npm run semantic-release
diff --git a/.yarnrc b/.yarnrc
new file mode 100644
index 00000000..acaaffdb
--- /dev/null
+++ b/.yarnrc
@@ -0,0 +1 @@
+--install.no-lockfile true
diff --git a/LICENSE b/LICENSE
index 8864d4a3..8e443427 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017 
+Copyright (c) 2017 Contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index 2a5f6414..aa7b3aac 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,95 @@
-# github
-Set of semantic-release plugins for publishing a Github release
+# @semantic-release/github
+
+Set of [semantic-release](https://github.com/semantic-release/semantic-release) plugins for publishing a [Github release](https://help.github.com/articles/about-releases).
+
+[![Travis](https://img.shields.io/travis/semantic-release/github.svg)](https://travis-ci.org/semantic-release/github)
+[![Codecov](https://img.shields.io/codecov/c/github/semantic-release/github.svg)](https://codecov.io/gh/semantic-release/github)
+[![Greenkeeper badge](https://badges.greenkeeper.io/semantic-release/github.svg)](https://greenkeeper.io/)
+
+## verifyConditions
+
+Verify the presence and the validity of the `githubToken` (set via option or environment variable).
+
+### Options
+
+| Option                | Description                                               | Default                                                |
+| --------------------- | --------------------------------------------------------- | ------------------------------------------------------ |
+| `githubToken`         | **Required.** The token used to authenticate with GitHub. | `process.env.GH_TOKEN` or `process.env.GITHUB_TOKEN`   |
+| `githubUrl`           | The GitHub Enterprise endpoint.                           | `process.env.GH_URL` or `process.env.GITHUB_URL`       |
+| `githubApiPathPrefix` | The GitHub Enterprise API prefix.                         | `process.env.GH_PREFIX` or `process.env.GITHUB_PREFIX` |
+
+## publish
+
+Publish a [Github release](https://help.github.com/articles/about-releases).
+
+### Options
+
+| Option                | Description                                               | Default                                                |
+| --------------------- | --------------------------------------------------------- | ------------------------------------------------------ |
+| `githubToken`         | **Required.** The token used to authenticate with GitHub. | `process.env.GH_TOKEN` or `process.env.GITHUB_TOKEN`   |
+| `githubUrl`           | The GitHub Enterprise endpoint.                           | `process.env.GH_URL` or `process.env.GITHUB_URL`       |
+| `githubApiPathPrefix` | The GitHub Enterprise API prefix.                         | `process.env.GH_PREFIX` or `process.env.GITHUB_PREFIX` |
+| `assets`              | An array of files to upload to the release.               | - 
+
+#### assets option
+
+Each element of the array can be a path to the file or an `object` with the properties:
+
+| Property | Description                                                              | Default                              |
+| -------- | ------------------------------------------------------------------------ | ------------------------------------ |
+| `path`   | **Required.** The file path to upload relative to the project directory. | -                                    |
+| `name`   | The name of the downloadable file on the Github release.                 | File name extracted from the `path`. |
+| `label`  | Short description of the file displayed on the Github release.           | -                                    |
+
+## Configuration
+
+The plugins are used by default by [semantic-release](https://github.com/semantic-release/semantic-release) so no specific configuration is requiered if `githubToken`, `githubUrl` and `githubApiPathPrefix` are set via environment variable.
+
+Each individual plugin can be disabled, replaced or used with other plugins in the `package.json`:
+```json
+{
+  "release": {
+    "verifyConditions": ["@semantic-release/github", "verify-other-condition"],
+    "getLastRelease": "custom-get-last-release",
+    "publish": [
+      "custom-publish",
+      {
+        "path": "@semantic-release/github",
+        "assets": [
+          {"path": "dist/asset.min.css", "label": "CSS distribution"},
+          {"path": "dist/asset.min.js", "label": "JS distribution"}
+        ]
+      }
+    ]
+  }
+}
+```
+
+The same configuration for Github Enterprise:
+```json
+{
+  "release": {
+    "verifyConditions": [
+      {
+        "path": "@semantic-release/github",
+        "githubUrl": "https://my-ghe.com",
+        "githubApiPathPrefix": "/api-prefix"
+      },
+      "verify-other-condition"
+    ],
+    "getLastRelease": "custom-get-last-release",
+    "publish": [
+      "custom-publish",
+      {
+        "path": "@semantic-release/github",
+        "githubUrl": "https://my-ghe.com",
+        "githubApiPathPrefix": "/api-prefix",
+        "assets": [
+          {"path": "dist/asset.min.css", "label": "CSS distribution"},
+          {"path": "dist/asset.min.js", "label": "JS distribution"}
+        ]
+      }
+    ]
+  }
+}
+```
diff --git a/index.js b/index.js
new file mode 100644
index 00000000..180ad1f2
--- /dev/null
+++ b/index.js
@@ -0,0 +1,30 @@
+const {callbackify} = require('util');
+const verifyGithub = require('./lib/verify');
+const publishGit = require('./lib/publish');
+
+let verified;
+
+async function verifyConditions(pluginConfig, {pkg, options: {publish}}) {
+  // If the Github publish plugin is used and has `assets` configured, validate it now in order to prevent any release if the configuration is wrong
+  if (publish) {
+    const publishPlugin = (Array.isArray(publish) ? publish : [publish]).find(
+      config => config.path && config.path === '@semantic-release/github'
+    );
+    if (publishPlugin && publishPlugin.assets) {
+      pluginConfig.assets = publishPlugin.assets;
+    }
+  }
+
+  await verifyGithub(pluginConfig, pkg);
+  verified = true;
+}
+
+async function publish(pluginConfig, {pkg, nextRelease, options, logger}) {
+  if (!verified) {
+    await verifyGithub(pluginConfig, pkg);
+    verified = true;
+  }
+  await publishGit(pluginConfig, options, pkg, nextRelease, logger);
+}
+
+module.exports = {verifyConditions: callbackify(verifyConditions), publish: callbackify(publish)};
diff --git a/lib/publish.js b/lib/publish.js
new file mode 100644
index 00000000..3bd14324
--- /dev/null
+++ b/lib/publish.js
@@ -0,0 +1,58 @@
+const {basename} = require('path');
+const {parse} = require('url');
+const {stat} = require('fs-extra');
+const gitUrlParse = require('git-url-parse');
+const GitHubApi = require('github');
+const resolveConfig = require('./resolve-config');
+const pEachSeries = require('p-each-series');
+const debug = require('debug')('semantic-release:publish-github');
+
+module.exports = async (pluginConfig, {branch}, {repository}, {version, gitHead, gitTag, notes}, logger) => {
+  const {githubToken, githubUrl, githubApiPathPrefix, assets} = resolveConfig(pluginConfig);
+  const {name: repo, owner} = gitUrlParse(repository.url);
+  let {port, protocol, hostname: host} = githubUrl ? parse(githubUrl) : {};
+  protocol = (protocol || '').split(':')[0] || null;
+
+  const github = new GitHubApi({port, protocol, host, pathPrefix: githubApiPathPrefix});
+  github.authenticate({type: 'token', token: githubToken});
+
+  const release = {owner, repo, tag_name: gitTag, name: gitTag, target_commitish: branch, body: notes};
+  debug('release owner: %o', owner);
+  debug('release repo: %o', repo);
+  debug('release name: %o', gitTag);
+  debug('release branch: %o', branch);
+  const ref = `refs/tags/${gitTag}`;
+
+  debug('Create git tag %o with commit %o', ref, gitHead);
+  await github.gitdata.createReference({owner, repo, ref, sha: gitHead});
+  const {data: {id, html_url}} = await github.repos.createRelease(release);
+  logger.log('Published Github release: %s', html_url);
+
+  if (assets && assets.length > 0) {
+    // Make requests serially to avoid hitting the rate limit (https://developer.github.com/v3/guides/best-practices-for-integrators/#dealing-with-abuse-rate-limits)
+    await pEachSeries(assets, async asset => {
+      const filePath = typeof asset === 'object' ? asset.path : asset;
+      let file;
+      try {
+        file = await stat(filePath);
+      } catch (err) {
+        logger.error('The asset %s cannot be read, and will be ignored.', filePath);
+        return;
+      }
+      if (!file || !file.isFile()) {
+        logger.error('The asset %s is not a file, and will be ignored.', filePath);
+        return;
+      }
+      const fileName = asset.name || basename(filePath);
+      const upload = {owner, repo, id, filePath, name: fileName};
+      debug('file path: %o', filePath);
+      debug('file name: %o', fileName);
+      if (asset.label) {
+        upload.label = asset.label;
+      }
+
+      const {data: {browser_download_url}} = await github.repos.uploadAsset(upload);
+      logger.log('Published file %s', browser_download_url);
+    });
+  }
+};
diff --git a/lib/resolve-config.js b/lib/resolve-config.js
new file mode 100644
index 00000000..8b3695a4
--- /dev/null
+++ b/lib/resolve-config.js
@@ -0,0 +1,6 @@
+module.exports = ({githubToken, githubUrl, githubApiPathPrefix, assets}) => ({
+  githubToken: githubToken || process.env.GH_TOKEN || process.env.GITHUB_TOKEN,
+  githubUrl: githubUrl || process.env.GH_URL || process.env.GITHUB_URL,
+  githubApiPathPrefix: githubApiPathPrefix || process.env.GH_PREFIX || process.env.GITHUB_PREFIX,
+  assets: assets ? (Array.isArray(assets) ? assets : [assets]) : assets,
+});
diff --git a/lib/verify.js b/lib/verify.js
new file mode 100644
index 00000000..e117813b
--- /dev/null
+++ b/lib/verify.js
@@ -0,0 +1,56 @@
+const {parse} = require('url');
+const gitUrlParse = require('git-url-parse');
+const GitHubApi = require('github');
+const resolveConfig = require('./resolve-config');
+const SemanticReleaseError = require('@semantic-release/error');
+
+module.exports = async (pluginConfig, {name, repository}) => {
+  const {githubToken, githubUrl, githubApiPathPrefix, assets} = resolveConfig(pluginConfig);
+
+  if (!name) {
+    throw new SemanticReleaseError('No "name" found in package.json.', 'ENOPKGNAME');
+  }
+
+  if (!repository || !repository.url) {
+    throw new SemanticReleaseError('No "repository" found in package.json.', 'ENOPKGREPO');
+  }
+
+  if (!githubToken) {
+    throw new SemanticReleaseError('No github token specified.', 'ENOGHTOKEN');
+  }
+
+  if (assets && assets.length > 0) {
+    // Verify that every asset is either a string or an object with path attribute defined
+    if (!assets.every(asset => typeof asset === 'string' || (typeof asset === 'object' && Boolean(asset.path)))) {
+      throw new SemanticReleaseError(
+        'The "assets" options must be an Array of strings or objects with a path property.',
+        'EINVALIDASSETS'
+      );
+    }
+  }
+
+  const {name: repo, owner} = gitUrlParse(repository.url);
+  let {port, protocol, hostname: host} = githubUrl ? parse(githubUrl) : {};
+  protocol = (protocol || '').split(':')[0] || null;
+
+  const github = new GitHubApi({port, protocol, host, pathPrefix: githubApiPathPrefix});
+  github.authenticate({type: 'token', token: githubToken});
+
+  let push;
+  try {
+    ({data: {permissions: {push}}} = await github.repos.get({repo, owner}));
+  } catch (err) {
+    if (err.code === 401) {
+      throw new SemanticReleaseError('Invalid Github token.', 'EINVALIDGHTOKEN');
+    } else if (err.code === 404) {
+      throw new SemanticReleaseError(`The repository ${owner}/${repo} doesn't exist.`, 'EMISSINGREPO');
+    }
+    throw err;
+  }
+  if (!push) {
+    throw new SemanticReleaseError(
+      `The github token doesn't allow to push on the repository ${owner}/${repo}.`,
+      'EGHNOPERMISSION'
+    );
+  }
+};
diff --git a/package.json b/package.json
new file mode 100644
index 00000000..55fc3b40
--- /dev/null
+++ b/package.json
@@ -0,0 +1,111 @@
+{
+  "name": "@semantic-release/github",
+  "description": "Set of semantic-release plugins for publishing a Github release",
+  "version": "0.0.0-development",
+  "author": "Pierre Vanduynslager (https://twitter.com/@pvdlg_)",
+  "bugs": {
+    "url": "https://github.com/semantic-release/github/issues"
+  },
+  "config": {
+    "commitizen": {
+      "path": "cz-conventional-changelog"
+    }
+  },
+  "contributors": [
+    "Stephan Bönnemann <stephan@boennemann.me> (http://boennemann.me)",
+    "Gregor Martynus (https://twitter.com/gr2m)"
+  ],
+  "dependencies": {
+    "@semantic-release/error": "^2.1.0",
+    "debug": "^3.1.0",
+    "fs-extra": "^4.0.2",
+    "git-url-parse": "^7.0.1",
+    "github": "^12.0.3",
+    "p-each-series": "^1.0.0"
+  },
+  "devDependencies": {
+    "ava": "^0.23.0",
+    "clear-module": "^2.1.0",
+    "codecov": "^3.0.0",
+    "commitizen": "^2.9.6",
+    "cz-conventional-changelog": "^2.0.0",
+    "eslint": "^4.11.0",
+    "eslint-config-prettier": "^2.8.0",
+    "eslint-config-standard": "^10.2.1",
+    "eslint-plugin-import": "^2.7.0",
+    "eslint-plugin-node": "^5.2.0",
+    "eslint-plugin-prettier": "^2.3.0",
+    "eslint-plugin-promise": "^3.5.0",
+    "eslint-plugin-standard": "^3.0.1",
+    "nock": "^9.1.0",
+    "nyc": "^11.2.1",
+    "prettier": "~1.8.2",
+    "rimraf": "^2.5.0",
+    "semantic-release": "^9.1.1",
+    "sinon": "^4.0.0"
+  },
+  "engines": {
+    "node": ">=4"
+  },
+  "eslintConfig": {
+    "extends": [
+      "standard",
+      "prettier"
+    ],
+    "plugins": [
+      "prettier"
+    ],
+    "rules": {
+      "prettier/prettier": 2
+    }
+  },
+  "files": [
+    "lib",
+    "index.js"
+  ],
+  "homepage": "https://github.com/semantic-release/github#readme",
+  "keywords": [
+    "git",
+    "github",
+    "publish",
+    "release",
+    "semantic-release",
+    "version"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "nyc": {
+    "include": [
+      "lib/**/*.js",
+      "index.js"
+    ],
+    "reporter": [
+      "json",
+      "text",
+      "html"
+    ],
+    "all": true
+  },
+  "prettier": {
+    "printWidth": 120,
+    "singleQuote": true,
+    "bracketSpacing": false,
+    "trailingComma": "es5"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/semantic-release/github.git"
+  },
+  "scripts": {
+    "clean": "rimraf coverage && rimraf .nyc_output",
+    "cm": "git-cz",
+    "codecov": "codecov -f coverage/coverage-final.json",
+    "lint": "eslint test lib index.js",
+    "pretest": "npm run clean && npm run lint",
+    "semantic-release": "semantic-release",
+    "test": "nyc ava -v"
+  }
+}
diff --git a/test/fixtures/upload.txt b/test/fixtures/upload.txt
new file mode 100644
index 00000000..5e2dd259
--- /dev/null
+++ b/test/fixtures/upload.txt
@@ -0,0 +1 @@
+Upload file content
\ No newline at end of file
diff --git a/test/fixtures/upload_other.txt b/test/fixtures/upload_other.txt
new file mode 100644
index 00000000..5e2dd259
--- /dev/null
+++ b/test/fixtures/upload_other.txt
@@ -0,0 +1 @@
+Upload file content
\ No newline at end of file
diff --git a/test/helpers/mock-github.js b/test/helpers/mock-github.js
new file mode 100644
index 00000000..ee013786
--- /dev/null
+++ b/test/helpers/mock-github.js
@@ -0,0 +1,28 @@
+import nock from 'nock';
+
+/**
+ * Retun a `nock` object setup to respond to a github authentication request. Other expectation and responses can be chained.
+ *
+ * @param {String} [githubToken='GH_TOKEN'] The github token to return in the authentication response.
+ * @param {String} [githubUrl='https://api.github.com'] The url on which to intercept http requests.
+ * @param {String} [githubApiPathPrefix] The GitHub Enterprise API prefix.
+ * @return {Object} A `nock` object ready to respond to a github authentication request.
+ */
+export function authenticate(
+  {githubToken = 'GH_TOKEN', githubUrl = 'https://api.github.com', githubApiPathPrefix = ''} = {}
+) {
+  return nock(`${githubUrl}/${githubApiPathPrefix}`, {reqheaders: {Authorization: `token ${githubToken}`}});
+}
+
+/**
+ * Retun a `nock` object setup to respond to a github release upload request. Other expectation and responses can be chained.
+ *
+ * @param {String} [githubToken='GH_TOKEN'] The github token to return in the authentication response.
+ * @param {String} [githubUrl='https://uploads.github.com'] The url on which to intercept http requests.
+ * @return {Object} A `nock` object ready to respond to a github file upload request.
+ */
+export function upload({githubToken = 'GH_TOKEN', githubUrl = 'https://uploads.github.com'} = {}) {
+  return nock(`${githubUrl}${githubUrl !== 'https://uploads.github.com' ? '/api/uploads' : ''}`, {
+    reqheaders: {Authorization: `token ${githubToken}`},
+  });
+}
diff --git a/test/integration.test.js b/test/integration.test.js
new file mode 100644
index 00000000..402bbca5
--- /dev/null
+++ b/test/integration.test.js
@@ -0,0 +1,202 @@
+import {promisify} from 'util';
+import {escape} from 'querystring';
+import test from 'ava';
+import {stub, match} from 'sinon';
+import clearModule from 'clear-module';
+import {authenticate, upload} from './helpers/mock-github';
+import SemanticReleaseError from '@semantic-release/error';
+
+test.beforeEach(async t => {
+  // Save the current process.env
+  t.context.env = Object.assign({}, process.env);
+  // Delete env variables in case they are on the machine running the tests
+  delete process.env.GH_TOKEN;
+  delete process.env.GITHUB_TOKEN;
+  delete process.env.GH_URL;
+  delete process.env.GITHUB_URL;
+  delete process.env.GH_PREFIX;
+  delete process.env.GITHUB_PREFIX;
+  // Clear npm cache to refresh the module state
+  clearModule('../index');
+  t.context.m = require('../index');
+  // Stub the logger
+  t.context.log = stub();
+  t.context.error = stub();
+  t.context.logger = {log: t.context.log, error: t.context.error};
+});
+
+test.afterEach.always(async t => {
+  // Restore process.env
+  process.env = Object.assign({}, t.context.env);
+});
+
+test.serial('Verify Github auth', async t => {
+  process.env.GITHUB_TOKEN = 'github_token';
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const options = {};
+  const pkg = {name: 'package-name', repository: {url: `git+https://othertesturl.com/${owner}/${repo}.git`}};
+
+  const github = authenticate({githubToken: process.env.GITHUB_TOKEN})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}});
+
+  await t.notThrows(promisify(t.context.m.verifyConditions)({}, {pkg, options}));
+
+  t.true(github.isDone());
+});
+
+test.serial('Verify Github auth with publish options', async t => {
+  process.env.GITHUB_TOKEN = 'github_token';
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const options = {publish: {path: '@semantic-release/github'}};
+  const pkg = {name: 'package-name', repository: {url: `git+https://othertesturl.com/${owner}/${repo}.git`}};
+
+  const github = authenticate({githubToken: process.env.GITHUB_TOKEN})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}});
+
+  await t.notThrows(promisify(t.context.m.verifyConditions)({}, {pkg, options}));
+
+  t.true(github.isDone());
+});
+
+test.serial('Verify Github auth and assets config', async t => {
+  process.env.GH_TOKEN = 'github_token';
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const assets = [{path: 'lib/file.js'}, 'file.js'];
+  const options = {publish: [{path: '@semantic-release/npm'}, {path: '@semantic-release/github', assets}]};
+  const pkg = {name: 'package-name', repository: {url: `git+https://othertesturl.com/${owner}/${repo}.git`}};
+
+  const github = authenticate({githubToken: process.env.GH_TOKEN})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}});
+
+  await t.notThrows(promisify(t.context.m.verifyConditions)({}, {pkg, options}));
+
+  t.true(github.isDone());
+});
+
+test.serial('Throw SemanticReleaseError if invalid config', async t => {
+  process.env.GH_TOKEN = 'github_token';
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const assets = [{wrongProperty: 'lib/file.js'}];
+  const options = {publish: [{path: '@semantic-release/npm'}, {path: '@semantic-release/github', assets}]};
+  const pkg = {name: 'package-name', repository: {url: `git+https://othertesturl.com/${owner}/${repo}.git`}};
+
+  const error = await t.throws(promisify(t.context.m.verifyConditions)({}, {pkg, options}));
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'EINVALIDASSETS');
+});
+
+test.serial('Publish a release with an array of assets', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+  const assets = [
+    'test/fixtures/upload.txt',
+    {path: 'test/fixtures/upload_other.txt', name: 'other_file.txt', label: 'Other File'},
+  ];
+  const nextRelease = {version: '1.0.0', gitHead: '123', gitTag: 'v1.0.0', notes: 'Test release note body'};
+  const options = {branch: 'master'};
+  const pkg = {name: 'package-name', repository: {url: `https://github.com/${owner}/${repo}.git`}};
+  const releaseUrl = `https://github.com/${owner}/${repo}/releases/${nextRelease.version}`;
+  const assetUrl = `https://github.com/${owner}/${repo}/releases/download/${nextRelease.version}/upload.txt`;
+  const otherAssetUrl = `https://github.com/${owner}/${repo}/releases/download/${nextRelease.version}/other_file.txt`;
+  const releaseId = 1;
+
+  const github = authenticate({githubToken})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}})
+    .post(`/repos/${owner}/${repo}/releases`, {
+      tag_name: nextRelease.gitTag,
+      target_commitish: options.branch,
+      name: nextRelease.gitTag,
+      body: nextRelease.notes,
+    })
+    .reply(200, {html_url: releaseUrl, id: releaseId})
+    .post(`/repos/${owner}/${repo}/git/refs`, {ref: `refs/tags/${nextRelease.gitTag}`, sha: nextRelease.gitHead})
+    .reply({});
+
+  const githubUpload = upload({githubToken})
+    .post(
+      `/repos/${owner}/${repo}/releases/${releaseId}/assets?filePath=${escape(
+        'test/fixtures/upload.txt'
+      )}&name=${escape('upload.txt')}`
+    )
+    .reply(200, {browser_download_url: assetUrl})
+    .post(
+      `/repos/${owner}/${repo}/releases/${releaseId}/assets?filePath=${escape(
+        'test/fixtures/upload_other.txt'
+      )}&name=${escape('other_file.txt')}&label=${escape('Other File')}`
+    )
+    .reply(200, {browser_download_url: otherAssetUrl});
+
+  await promisify(t.context.m.publish)({githubToken, assets}, {pkg, nextRelease, options, logger: t.context.logger});
+
+  t.true(t.context.log.calledWith(match.string, releaseUrl));
+  t.true(t.context.log.calledWith(match.string, assetUrl));
+  t.true(t.context.log.calledWith(match.string, otherAssetUrl));
+  t.true(github.isDone());
+  t.true(githubUpload.isDone());
+});
+
+test.serial('Verify Github auth and release', async t => {
+  process.env.GH_TOKEN = 'github_token';
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const assets = [
+    'test/fixtures/upload.txt',
+    {path: 'test/fixtures/upload_other.txt', name: 'other_file.txt', label: 'Other File'},
+  ];
+  const pkg = {name: 'package-name', repository: {url: `https://github.com/${owner}/${repo}.git`}};
+  const options = {
+    publish: [{path: '@semantic-release/npm'}, {path: '@semantic-release/github', assets}],
+    branch: 'master',
+  };
+  const nextRelease = {version: '1.0.0', gitHead: '123', gitTag: 'v1.0.0', notes: 'Test release note body'};
+  const releaseUrl = `https://github.com/${owner}/${repo}/releases/${nextRelease.version}`;
+  const assetUrl = `https://github.com/${owner}/${repo}/releases/download/${nextRelease.version}/upload.txt`;
+  const otherAssetUrl = `https://github.com/${owner}/${repo}/releases/download/${nextRelease.version}/other_file.txt`;
+  const releaseId = 1;
+
+  const github = authenticate({githubToken: process.env.GH_TOKEN})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}})
+    .post(`/repos/${owner}/${repo}/releases`, {
+      tag_name: nextRelease.gitTag,
+      target_commitish: options.branch,
+      name: nextRelease.gitTag,
+      body: nextRelease.notes,
+    })
+    .reply(200, {html_url: releaseUrl, id: releaseId})
+    .post(`/repos/${owner}/${repo}/git/refs`, {ref: `refs/tags/${nextRelease.gitTag}`, sha: nextRelease.gitHead})
+    .reply({});
+
+  const githubUpload = upload({githubToken: process.env.GH_TOKEN})
+    .post(
+      `/repos/${owner}/${repo}/releases/${releaseId}/assets?filePath=${escape(
+        'test/fixtures/upload.txt'
+      )}&name=${escape('upload.txt')}`
+    )
+    .reply(200, {browser_download_url: assetUrl})
+    .post(
+      `/repos/${owner}/${repo}/releases/${releaseId}/assets?filePath=${escape(
+        'test/fixtures/upload_other.txt'
+      )}&name=${escape('other_file.txt')}&label=${escape('Other File')}`
+    )
+    .reply(200, {browser_download_url: otherAssetUrl});
+
+  await t.notThrows(promisify(t.context.m.verifyConditions)({}, {pkg, options}));
+  await promisify(t.context.m.publish)({assets}, {pkg, nextRelease, options, logger: t.context.logger});
+
+  t.true(t.context.log.calledWith(match.string, releaseUrl));
+  t.true(t.context.log.calledWith(match.string, assetUrl));
+  t.true(t.context.log.calledWith(match.string, otherAssetUrl));
+  t.true(github.isDone());
+  t.true(githubUpload.isDone());
+});
diff --git a/test/publish.test.js b/test/publish.test.js
new file mode 100644
index 00000000..7ad04a99
--- /dev/null
+++ b/test/publish.test.js
@@ -0,0 +1,233 @@
+import {escape} from 'querystring';
+import test from 'ava';
+import nock from 'nock';
+import {stub, match} from 'sinon';
+import {authenticate, upload} from './helpers/mock-github';
+import publish from '../lib/publish';
+
+test.beforeEach(async t => {
+  // Save the current process.env
+  t.context.env = Object.assign({}, process.env);
+  // Delete env variables in case they are on the machine running the tests
+  delete process.env.GH_TOKEN;
+  delete process.env.GITHUB_TOKEN;
+  delete process.env.GH_URL;
+  delete process.env.GITHUB_URL;
+  delete process.env.GH_PREFIX;
+  delete process.env.GITHUB_PREFIX;
+  // Mock logger
+  t.context.log = stub();
+  t.context.error = stub();
+  t.context.logger = {log: t.context.log, error: t.context.error};
+});
+
+test.afterEach.always(t => {
+  // Restore process.env
+  process.env = Object.assign({}, t.context.env);
+  // Clear nock
+  nock.cleanAll();
+});
+
+test.serial('Publish a release', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+  const pluginConfig = {githubToken};
+  const nextRelease = {version: '1.0.0', gitHead: '123', gitTag: 'v1.0.0', notes: 'Test release note body'};
+  const options = {branch: 'master'};
+  const pkg = {repository: {url: `https://github.com/${owner}/${repo}.git`}};
+  const releaseUrl = `https://github.com/${owner}/${repo}/releases/${nextRelease.version}`;
+
+  const github = authenticate({githubToken})
+    .post(`/repos/${owner}/${repo}/releases`, {
+      tag_name: nextRelease.gitTag,
+      target_commitish: options.branch,
+      name: nextRelease.gitTag,
+      body: nextRelease.notes,
+    })
+    .reply(200, {html_url: releaseUrl})
+    .post(`/repos/${owner}/${repo}/git/refs`, {ref: `refs/tags/${nextRelease.gitTag}`, sha: nextRelease.gitHead})
+    .reply({});
+
+  await publish(pluginConfig, options, pkg, nextRelease, t.context.logger);
+
+  t.true(t.context.log.calledWith(match.string, releaseUrl));
+  t.true(github.isDone());
+});
+
+test.serial('Publish a release with one asset', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  process.env.GH_URL = 'https://othertesturl.com:443';
+  process.env.GH_TOKEN = 'github_token';
+  process.env.GH_PREFIX = 'prefix';
+  const pluginConfig = {assets: 'test/fixtures/upload.txt'};
+  const nextRelease = {version: '1.0.0', gitHead: '123', gitTag: 'v1.0.0', notes: 'Test release note body'};
+  const options = {branch: 'master'};
+  const pkg = {repository: {url: `https://github.com/${owner}/${repo}.git`}};
+  const releaseUrl = `https://github.com/${owner}/${repo}/releases/${nextRelease.version}`;
+  const assetUrl = `https://github.com/${owner}/${repo}/releases/download/${nextRelease.version}/upload.txt`;
+  const releaseId = 1;
+
+  const github = authenticate({
+    githubUrl: process.env.GH_URL,
+    githubToken: process.env.GH_TOKEN,
+    githubApiPathPrefix: process.env.GH_PREFIX,
+  })
+    .post(`/repos/${owner}/${repo}/releases`, {
+      tag_name: nextRelease.gitTag,
+      target_commitish: options.branch,
+      name: nextRelease.gitTag,
+      body: nextRelease.notes,
+    })
+    .reply(200, {html_url: releaseUrl, id: releaseId})
+    .post(`/repos/${owner}/${repo}/git/refs`, {ref: `refs/tags/${nextRelease.gitTag}`, sha: nextRelease.gitHead})
+    .reply({});
+
+  const githubUpload = upload({githubUrl: process.env.GH_URL, githubToken: process.env.GH_TOKEN})
+    .post(
+      `/repos/${owner}/${repo}/releases/${releaseId}/assets?filePath=${escape(
+        'test/fixtures/upload.txt'
+      )}&name=${escape('upload.txt')}`
+    )
+    .reply(200, {browser_download_url: assetUrl});
+
+  await publish(pluginConfig, options, pkg, nextRelease, t.context.logger);
+
+  t.true(t.context.log.calledWith(match.string, releaseUrl));
+  t.true(t.context.log.calledWith(match.string, assetUrl));
+  t.true(github.isDone());
+  t.true(githubUpload.isDone());
+});
+
+test.serial('Publish a release with one asset and custom github url', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  process.env.GITHUB_URL = 'https://othertesturl.com:443';
+  process.env.GITHUB_TOKEN = 'github_token';
+  process.env.GITHUB_PREFIX = 'prefix';
+  const assets = 'test/fixtures/upload.txt';
+  const pluginConfig = {githubUrl: process.env.GITHUB_URL, githubApiPathPrefix: process.env.GITHUB_PREFIX, assets};
+  const nextRelease = {version: '1.0.0', gitHead: '123', gitTag: 'v1.0.0', notes: 'Test release note body'};
+  const options = {branch: 'master'};
+  const pkg = {repository: {url: `https://github.com/${owner}/${repo}.git`}};
+  const releaseUrl = `https://github.com/${owner}/${repo}/releases/${nextRelease.version}`;
+  const assetUrl = `https://github.com/${owner}/${repo}/releases/download/${nextRelease.version}/upload.txt`;
+  const releaseId = 1;
+
+  const github = authenticate({
+    githubToken: process.env.GITHUB_TOKEN,
+    githubUrl: process.env.GITHUB_URL,
+    githubApiPathPrefix: process.env.GITHUB_PREFIX,
+  })
+    .post(`/repos/${owner}/${repo}/releases`, {
+      tag_name: nextRelease.gitTag,
+      target_commitish: options.branch,
+      name: nextRelease.gitTag,
+      body: nextRelease.notes,
+    })
+    .reply(200, {html_url: releaseUrl, id: releaseId})
+    .post(`/repos/${owner}/${repo}/git/refs`, {ref: `refs/tags/${nextRelease.gitTag}`, sha: nextRelease.gitHead})
+    .reply({});
+
+  const githubUpload = upload({githubToken: process.env.GITHUB_TOKEN, githubUrl: process.env.GITHUB_URL})
+    .post(
+      `/repos/${owner}/${repo}/releases/${releaseId}/assets?filePath=${escape(
+        'test/fixtures/upload.txt'
+      )}&name=${escape('upload.txt')}`
+    )
+    .reply(200, {browser_download_url: assetUrl});
+
+  await publish(pluginConfig, options, pkg, nextRelease, t.context.logger);
+
+  t.true(t.context.log.calledWith(match.string, releaseUrl));
+  t.true(t.context.log.calledWith(match.string, assetUrl));
+  t.true(github.isDone());
+  t.true(githubUpload.isDone());
+});
+
+test.serial('Publish a release with an array of assets', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+  const pluginConfig = {
+    githubToken,
+    assets: [
+      'test/fixtures/upload.txt',
+      {path: 'test/fixtures/upload_other.txt', name: 'other_file.txt', label: 'Other File'},
+    ],
+  };
+  const nextRelease = {version: '1.0.0', gitHead: '123', gitTag: 'v1.0.0', notes: 'Test release note body'};
+  const options = {branch: 'master'};
+  const pkg = {repository: {url: `https://github.com/${owner}/${repo}.git`}};
+  const releaseUrl = `https://github.com/${owner}/${repo}/releases/${nextRelease.version}`;
+  const assetUrl = `https://github.com/${owner}/${repo}/releases/download/${nextRelease.version}/upload.txt`;
+  const otherAssetUrl = `https://github.com/${owner}/${repo}/releases/download/${nextRelease.version}/other_file.txt`;
+  const releaseId = 1;
+
+  const github = authenticate({githubToken})
+    .post(`/repos/${owner}/${repo}/releases`, {
+      tag_name: nextRelease.gitTag,
+      target_commitish: options.branch,
+      name: nextRelease.gitTag,
+      body: nextRelease.notes,
+    })
+    .reply(200, {html_url: releaseUrl, id: releaseId})
+    .post(`/repos/${owner}/${repo}/git/refs`, {ref: `refs/tags/${nextRelease.gitTag}`, sha: nextRelease.gitHead})
+    .reply({});
+
+  const githubUpload = upload({githubToken})
+    .post(
+      `/repos/${owner}/${repo}/releases/${releaseId}/assets?filePath=${escape(
+        'test/fixtures/upload.txt'
+      )}&name=${escape('upload.txt')}`
+    )
+    .reply(200, {browser_download_url: assetUrl})
+    .post(
+      `/repos/${owner}/${repo}/releases/${releaseId}/assets?filePath=${escape(
+        'test/fixtures/upload_other.txt'
+      )}&name=${escape('other_file.txt')}&label=${escape('Other File')}`
+    )
+    .reply(200, {browser_download_url: otherAssetUrl});
+
+  await publish(pluginConfig, options, pkg, nextRelease, t.context.logger);
+
+  t.true(t.context.log.calledWith(match.string, releaseUrl));
+  t.true(t.context.log.calledWith(match.string, assetUrl));
+  t.true(t.context.log.calledWith(match.string, otherAssetUrl));
+  t.true(github.isDone());
+  t.true(githubUpload.isDone());
+});
+
+test.serial('Publish a release with an array of misconfigured assets', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+  const pluginConfig = {
+    githubToken,
+    assets: ['test/fixtures', {path: 'test/fixtures/missing.txt', name: 'missing.txt', label: 'Missing File'}],
+  };
+  const nextRelease = {version: '1.0.0', gitHead: '123', gitTag: 'v1.0.0', notes: 'Test release note body'};
+  const options = {branch: 'master'};
+  const pkg = {repository: {url: `https://github.com/${owner}/${repo}.git`}};
+  const releaseUrl = `https://github.com/${owner}/${repo}/releases/${nextRelease.version}`;
+  const releaseId = 1;
+
+  const github = authenticate({githubToken})
+    .post(`/repos/${owner}/${repo}/releases`, {
+      tag_name: nextRelease.gitTag,
+      target_commitish: options.branch,
+      name: nextRelease.gitTag,
+      body: nextRelease.notes,
+    })
+    .reply(200, {html_url: releaseUrl, id: releaseId})
+    .post(`/repos/${owner}/${repo}/git/refs`, {ref: `refs/tags/${nextRelease.gitTag}`, sha: nextRelease.gitHead})
+    .reply({});
+
+  await publish(pluginConfig, options, pkg, nextRelease, t.context.logger);
+
+  t.true(t.context.log.calledWith(match.string, releaseUrl));
+  t.true(t.context.error.calledWith(match.string, 'test/fixtures/missing.txt'));
+  t.true(t.context.error.calledWith(match.string, 'test/fixtures'));
+  t.true(github.isDone());
+});
diff --git a/test/verify.test.js b/test/verify.test.js
new file mode 100644
index 00000000..90c77e29
--- /dev/null
+++ b/test/verify.test.js
@@ -0,0 +1,271 @@
+import test from 'ava';
+import nock from 'nock';
+import SemanticReleaseError from '@semantic-release/error';
+import {authenticate} from './helpers/mock-github';
+import verify from '../lib/verify';
+
+test.beforeEach(async t => {
+  // Save the current process.env
+  t.context.env = Object.assign({}, process.env);
+  // Delete env variables in case they are on the machine running the tests
+  delete process.env.GH_TOKEN;
+  delete process.env.GITHUB_TOKEN;
+  delete process.env.GH_URL;
+  delete process.env.GITHUB_URL;
+  delete process.env.GH_PREFIX;
+  delete process.env.GITHUB_PREFIX;
+});
+
+test.afterEach.always(t => {
+  // Restore process.env
+  process.env = Object.assign({}, t.context.env);
+  // Clear nock
+  nock.cleanAll();
+});
+
+test.serial('Verify package, token and repository access', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+  const assets = [{path: 'lib/file.js'}, 'file.js'];
+
+  const github = authenticate({githubToken})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}});
+
+  await t.notThrows(
+    verify(
+      {githubToken, assets},
+      {name: 'package-name', repository: {url: `git+https://othertesturl.com/${owner}/${repo}.git`}}
+    )
+  );
+  t.true(github.isDone());
+});
+
+test.serial('Verify package, token and repository access and custom URL', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubUrl = 'https://othertesturl.com:443';
+  const githubToken = 'github_token';
+  const githubApiPathPrefix = 'prefix';
+
+  const github = authenticate({githubUrl, githubToken, githubApiPathPrefix})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}});
+
+  await t.notThrows(
+    verify(
+      {githubUrl, githubToken, githubApiPathPrefix},
+      {name: 'package-name', repository: {url: `git@othertesturl.com:${owner}/${repo}.git`}}
+    )
+  );
+  t.true(github.isDone());
+});
+
+test.serial('Verify package, token and repository with environment varialbes', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  process.env.GH_URL = 'https://othertesturl.com:443';
+  process.env.GH_TOKEN = 'github_token';
+  process.env.GH_PREFIX = 'prefix';
+
+  const github = authenticate({
+    githubUrl: process.env.GH_URL,
+    githubToken: process.env.GH_TOKEN,
+    githubApiPathPrefix: process.env.GH_PREFIX,
+  })
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}});
+
+  await t.notThrows(
+    verify(
+      {githubUrl: process.env.GH_URL, githubApiPathPrefix: process.env.GH_PREFIX},
+      {name: 'package-name', repository: {url: `git@othertesturl.com:${owner}/${repo}.git`}}
+    )
+  );
+  t.true(github.isDone());
+});
+
+test.serial('Verify package, token and repository access with alternative environment varialbes', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  process.env.GITHUB_URL = 'https://othertesturl.com:443';
+  process.env.GITHUB_TOKEN = 'github_token';
+  process.env.GITHUB_PREFIX = 'prefix';
+
+  const github = authenticate({
+    githubUrl: process.env.GITHUB_URL,
+    githubToken: process.env.GITHUB_TOKEN,
+    githubApiPathPrefix: process.env.GITHUB_PREFIX,
+  })
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: true}});
+
+  await t.notThrows(
+    verify(
+      {githubUrl: process.env.GITHUB_URL, githubApiPathPrefix: process.env.GITHUB_PREFIX},
+      {name: 'package-name', repository: {url: `git@othertesturl.com:${owner}/${repo}.git`}}
+    )
+  );
+  t.true(github.isDone());
+});
+
+test.serial('Throw SemanticReleaseError for missing package name', async t => {
+  const error = await t.throws(verify({}, {repository: {url: 'http://github.com/whats/up.git'}}));
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'ENOPKGNAME');
+});
+
+test.serial('Throw SemanticReleaseError for missing repository', async t => {
+  const error = await t.throws(verify({}, {name: 'package'}));
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'ENOPKGREPO');
+});
+
+test.serial('Throw SemanticReleaseError for missing repository url', async t => {
+  const error = await t.throws(verify({}, {name: 'package', repository: {}}));
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'ENOPKGREPO');
+});
+
+test.serial('Throw SemanticReleaseError if "assets" option is not a string or an array of objects', async t => {
+  const githubToken = 'github_token';
+  const assets = 42;
+  const error = await t.throws(
+    verify(
+      {githubToken, assets},
+      {name: 'package', repository: {url: 'https://github.com/semantic-release/github.git'}}
+    )
+  );
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'EINVALIDASSETS');
+});
+
+test.serial('Throw SemanticReleaseError if "assets" option is an Array with invalid elements', async t => {
+  const githubToken = 'github_token';
+  const assets = ['file.js', 42];
+  const error = await t.throws(
+    verify(
+      {githubToken, assets},
+      {name: 'package', repository: {url: 'https://github.com/semantic-release/github.git'}}
+    )
+  );
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'EINVALIDASSETS');
+});
+
+test.serial('Throw SemanticReleaseError if "assets" option is an Object missing the "path" property', async t => {
+  const githubToken = 'github_token';
+  const assets = {name: 'file.js'};
+  const error = await t.throws(
+    verify(
+      {githubToken, assets},
+      {name: 'package', repository: {url: 'https://github.com/semantic-release/github.git'}}
+    )
+  );
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'EINVALIDASSETS');
+});
+
+test.serial(
+  'Throw SemanticReleaseError if "assets" option is an Array with objects missing the "path" property',
+  async t => {
+    const githubToken = 'github_token';
+    const assets = [{path: 'lib/file.js'}, {name: 'file.js'}];
+    const error = await t.throws(
+      verify(
+        {githubToken, assets},
+        {name: 'package', repository: {url: 'https://github.com/semantic-release/github.git'}}
+      )
+    );
+
+    t.true(error instanceof SemanticReleaseError);
+    t.is(error.code, 'EINVALIDASSETS');
+  }
+);
+
+test.serial('Throw SemanticReleaseError for missing github token', async t => {
+  const error = await t.throws(
+    verify({}, {name: 'package', repository: {url: 'https://github.com/semantic-release/github.git'}})
+  );
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'ENOGHTOKEN');
+});
+
+test.serial('Throw SemanticReleaseError for invalid token', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+
+  const github = authenticate({githubToken})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(401);
+
+  const error = await t.throws(
+    verify({githubToken}, {name: 'package-name', repository: {url: `https://github.com:${owner}/${repo}.git`}})
+  );
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'EINVALIDGHTOKEN');
+  t.true(github.isDone());
+});
+
+test.serial("Throw SemanticReleaseError if token doesn't have the push permission on the repository", async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+
+  const github = authenticate({githubToken})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(200, {permissions: {push: false}});
+
+  const error = await t.throws(
+    verify({githubToken}, {name: 'package-name', repository: {url: `https://github.com:${owner}/${repo}.git`}})
+  );
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'EGHNOPERMISSION');
+  t.true(github.isDone());
+});
+
+test.serial("Throw SemanticReleaseError if the repository doesn't exist", async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+
+  const github = authenticate({githubToken})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(404);
+
+  const error = await t.throws(
+    verify({githubToken}, {name: 'package-name', repository: {url: `https://github.com:${owner}/${repo}.git`}})
+  );
+
+  t.true(error instanceof SemanticReleaseError);
+  t.is(error.code, 'EMISSINGREPO');
+  t.true(github.isDone());
+});
+
+test.serial('Throw error if github return any other errors', async t => {
+  const owner = 'test_user';
+  const repo = 'test_repo';
+  const githubToken = 'github_token';
+
+  const github = authenticate({githubToken})
+    .get(`/repos/${owner}/${repo}`)
+    .reply(500);
+
+  const error = await t.throws(
+    verify({githubToken}, {name: 'package-name', repository: {url: `https://github.com:${owner}/${repo}.git`}})
+  );
+
+  t.is(error.code, 500);
+  t.true(github.isDone());
+});