First commit

node_modules/png-js/test/imgdata.spec.js

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+const PNGNode = require('../png-node');
+const fs = require('fs');
+
+const files = fs.readdirSync('test/images');
+
+function getImgData(Ctor, fileName) {
+  const image = new Ctor(fs.readFileSync(`test/images/${fileName}`));
+  return image.imgData;
+}
+
+describe('imgData', () => {
+  describe('node', () => {
+    test.each(files)('%s', fileName => {
+      expect(getImgData(PNGNode, fileName)).toMatchSnapshot();
+    });
+  });
+
+  describe('browser', () => {
+    test.each(files)('%s', fileName => {
+      expect(getImgData(PNG, fileName)).toMatchSnapshot();
+    });
+  });
+});