Add tests for ignore: 'antialiasing' [#137]

nodejs-tests/ignore.test.js

@@ -0,0 +1,50 @@
+/* eslint-env jest*/
+
+const resemble = require('../resemble');
+const fs = require('fs');
+
+describe('ignore', () => {
+    test('ignore antialiasing on', async () => {
+        const text = fs.readFileSync('./nodejs-tests/assets/text.png');
+        const textAa = fs.readFileSync('./nodejs-tests/assets/textAa.png');
+
+        return new Promise(resolve => {
+            const opts = { ignore: 'antialiasing' };
+
+            resemble.compare(text, textAa, opts, (_x, data) => {
+                expect(data.misMatchPercentage).toBe('0.00');
+                const buffer = data.getBuffer();
+
+                expect(buffer).toBeInstanceOf(Buffer);
+
+                const comparison = fs.readFileSync(
+                    './nodejs-tests/assets/isAntialiased/diffOn.png'
+                );
+
+                expect(buffer.equals(comparison)).toBe(true);
+                resolve();
+            });
+        });
+    });
+
+    test('ignore antialiasing off', async () => {
+        const text = fs.readFileSync('./nodejs-tests/assets/text.png');
+        const textAa = fs.readFileSync('./nodejs-tests/assets/textAa.png');
+
+        return new Promise(resolve => {
+            resemble.compare(text, textAa, {}, (_x, data) => {
+                expect(data.misMatchPercentage).toBe('5.19');
+                const buffer = data.getBuffer();
+
+                expect(buffer).toBeInstanceOf(Buffer);
+
+                const comparison = fs.readFileSync(
+                    './nodejs-tests/assets/isAntialiased/diffOff.png'
+                );
+
+                expect(buffer.equals(comparison)).toBe(true);
+                resolve();
+            });
+        });
+    });
+});