From b2723f3b70be13cb0fe11b2c481bd3af05170030 Mon Sep 17 00:00:00 2001
From: Nick Playfair <nick@playfair.dev>
Date: Fri, 5 Feb 2021 14:30:59 +0000
Subject: [PATCH] Test for gerberToStream

Define a test for the gerberToStream method
---
 test/index.test.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/index.test.js b/test/index.test.js
index ae7fa60..138b0dd 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -1,6 +1,7 @@
 /* eslint-disable */
 const path = require('path');
 const fs = require('fs-extra');
+const Readable = require('stream').Readable;
 const { ImageGenerator } = require('../index.js');
 require('../index.js');
 
@@ -110,3 +111,11 @@ test('Gerber archive should resolve promise and return a filename of an image',
     fileProc.gerberToImage(testGerber)
   ).resolves.toEqual(expect.stringContaining('Arduino-Pro-Mini.png'));
 });
+
+// gerberToStream
+test('Gerber archive should resolve promise and return a png stream', () => {
+  expect.assertions(1);
+  return expect(
+    fileProc.gerberToStream(testGerber)
+  ).resolves.toBeInstanceOf(Readable);
+});