diff --git a/test/ui-testing/center.test.js b/test/ui-testing/center.test.js
new file mode 100644
index 00000000..c4c96138
--- /dev/null
+++ b/test/ui-testing/center.test.js
@@ -0,0 +1,29 @@
+const timeout = process.env.SLOWMO ? 60000 : 10000;
+const fs = require('fs');
+beforeAll(async () => {
+  path = fs.realpathSync('file://../examples/index.html');
+  await page.goto('file://' + path, {waitUntil: 'domcontentloaded'});
+});
+
+describe('Center Text', () => {
+  test('Centering and decentering text', async () => {
+    await page.setViewport({ width: 1920, height: 1080 });
+    await page.waitForSelector('.ple-module-body');
+    await page.click('.woofmark-mode-markdown');
+    await page.focus('.ple-textarea');
+    
+    await page.click('.woofmark-command-autocenter');
+    let opening = await page.evaluate(() => document.querySelector('.ple-textarea').value.includes('->'));
+    let closing = await page.evaluate(() => document.querySelector('.ple-textarea').value.includes('<-'));
+    expect(opening).toBe(true);
+    expect(closing).toBe(true);
+
+    await page.click('.woofmark-command-autocenter');
+    await page.click('.woofmark-command-autocenter');
+    opening = await page.evaluate(() => document.querySelector('.ple-textarea').value.includes('->'));
+    closing = await page.evaluate(() => document.querySelector('.ple-textarea').value.includes('<-'));
+    expect(opening).toBe(false);
+    expect(closing).toBe(false);
+
+  }, timeout);
+});
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