diff --git a/test/index.test.js b/test/index.test.js
index 138b0dd..d67a320 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -6,6 +6,7 @@ const { ImageGenerator } = require('../index.js');
 require('../index.js');
 
 const testGerber = path.join(__dirname, 'Arduino-Pro-Mini.zip');
+const incompleteGerber = path.join(__dirname, 'incomplete.zip');
 const testLayers = path.join(__dirname, 'layers');
 const emptyFolder = path.join(__dirname, 'layers', 'Empty');
 const folderConfig = {
@@ -105,6 +106,14 @@ test('Invalid archive file should throw an error', () => {
   );
 });
 
+test('Archive with incomplete set of layers should throw an error', () => {
+  expect(() =>
+    fileProc
+      .gerberToImage(incompleteGerber)
+      .toThrow(Error)
+  );
+});
+
 test('Gerber archive should resolve promise and return a filename of an image', () => {
   expect.assertions(1);
   return expect(