From c6ea6c2de99a82e1cf798264e87c3d057f1ae32f Mon Sep 17 00:00:00 2001
From: Alexandr Vorobey <sashavorobey95@gmail.com>
Date: Fri, 8 May 2020 20:37:23 +0300
Subject: [PATCH] fix(prepareOpts): TypeError when opts is undefined (#66)

* fix(prepareOpts): TypeError when opts is undefined
---
 index.d.ts   | 2 +-
 index.js     | 1 +
 test/test.js | 6 ++++++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/index.d.ts b/index.d.ts
index 4cf428a..25710cd 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -191,7 +191,7 @@ interface Color {
 declare function looksSame(
     image1: string | Buffer | BoundedImage,
     image2: string | Buffer | BoundedImage,
-    options: LooksSameOptions,
+    options: LooksSameOptions | {},
     callback: LooksSameCallback
 ): void;
 /**
diff --git a/index.js b/index.js
index 20f2f92..639048a 100644
--- a/index.js
+++ b/index.js
@@ -116,6 +116,7 @@ const getToleranceFromOpts = (opts) => {
 };
 
 const prepareOpts = (opts) => {
+    opts = opts || {};
     opts.tolerance = getToleranceFromOpts(opts);
 
     return _.defaults(opts, {
diff --git a/test/test.js b/test/test.js
index d9740ae..43a97c4 100644
--- a/test/test.js
+++ b/test/test.js
@@ -42,6 +42,12 @@ describe('looksSame', () => {
         }).to.throw(TypeError);
     });
 
+    it('should work when opts is undefined', () => {
+        expect(() => {
+            looksSame(srcPath('ref.png'), srcPath('same.png'), undefined, () => {});
+        }).not.to.throw(TypeError);
+    });
+
     it('should format images', (done) => {
         sandbox.spy(utils, 'formatImages');