Test: createDiff

src/createDiffs.test.js

@@ -0,0 +1,32 @@
+/* globals jest expect */
+
+import looksSame from 'looks-same';
+import createDiffImage from './createDiffs';
+
+jest.mock('looks-same', () => {
+  return { createDiff: jest.fn() };
+});
+
+jest.mock('path');
+
+describe('Creating difference images', () => {
+  beforeEach(() => {});
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('checks whether the image data looks the same', () => {
+    jest.setTimeout(60000);
+    const comparisonData = {
+      label: 'test1-large',
+      baseline: 'testBaseline/test1-large.png',
+      latest: 'testLatest/test1-large.png',
+      generatedDiffs: 'testDiff/test1-large.png',
+      tolerance: 0
+    };
+
+    createDiffImage(comparisonData);
+    expect(looksSame.createDiff).toHaveBeenCalled();
+  });
+});