From 34aee9e190314afc22a3e94a3c66bd1c839da22c Mon Sep 17 00:00:00 2001
From: Pierre-Denis Vanduynslager <pierre.denis.vanduynslager@gmail.com>
Date: Sun, 17 Sep 2017 19:03:23 -0400
Subject: [PATCH] fix: Accept undefined pluginConfig

---
 lib/index.js             | 4 ++--
 test/integration.test.js | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index 4db5d676..39c22d0f 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -15,7 +15,7 @@ const DEFAULT_RELEASE_RULES = require('./default/release-rules');
 /**
  * Determine the type of release to create based on a list of commits.
  *
- * @param {Object} pluginConfig semantic-release configuration
+ * @param {Object} [pluginConfig={}] semantic-release configuration
  * @param {string} pluginConfig.preset conventional-changelog preset ('angular', 'atom', 'codemirror', 'ember', 'eslint', 'express', 'jquery', 'jscs', 'jshint')
  * @param {string} pluginConfig.config requierable npm package with a custom conventional-changelog preset
  * @param {string|Array} pluginConfig.releaseRules a string to load an external module or an `Array` of rules.
@@ -24,7 +24,7 @@ const DEFAULT_RELEASE_RULES = require('./default/release-rules');
  * @param {Array} options.commits array of commits
  * @param {commitAnalyzerCallback} callback The callback called with the release type.
  */
-module.exports = async (pluginConfig, {commits}, callback) => {
+module.exports = async (pluginConfig = {}, {commits}, callback) => {
   try {
     const releaseRules = loadReleaseRules(pluginConfig);
     const config = await loadParserConfig(pluginConfig);
diff --git a/test/integration.test.js b/test/integration.test.js
index b73a8c41..02cf8f43 100644
--- a/test/integration.test.js
+++ b/test/integration.test.js
@@ -187,3 +187,10 @@ test('Handle error in "conventional-changelog-parser" and wrap in "SemanticRelea
 
   t.true(error instanceof SemanticReleaseError);
 });
+
+test('Accept an undefined "pluginConfig"', async t => {
+  const commits = [{message: 'fix(scope1): First fix'}, {message: 'feat(scope2): Second feature'}];
+  const releaseType = await pify(commitAnalyzer)(undefined, {commits});
+
+  t.is(releaseType, 'minor');
+});