Added visual test for capturing the Save Successful Banner (#5237)

Co-authored-by: John Hill <john.c.hill@nasa.gov>

e2e/tests/visual/default.visual.spec.js

@@ -47,7 +47,10 @@ test.beforeEach(async ({ context }) => {
         path: path.join(__dirname, '../../..', './node_modules/sinon/pkg/sinon.js')
     });
     await context.addInitScript(() => {
-        window.__clock = sinon.useFakeTimers(); //Set browser clock to UNIX Epoch
+        window.__clock = sinon.useFakeTimers({
+            now: 0,
+            shouldAdvanceTime: true
+        }); //Set browser clock to UNIX Epoch
     });
 });
 
@@ -171,3 +174,24 @@ test('Visual - Sine Wave Generator Form', async ({ page }) => {
     await page.waitForTimeout(VISUAL_GRACE_PERIOD);
     await percySnapshot(page, 'removed amplitude property value');
 });
+
+test('Visual - Save Successful Banner', async ({ page }) => {
+    //Go to baseURL
+    await page.goto('/', { waitUntil: 'networkidle' });
+
+    //Click the Create button
+    await page.click('button:has-text("Create")');
+
+    //NOTE Something other than example imagery
+    await page.click('text=Timer');
+
+    // Click text=OK
+    await page.click('text=OK');
+    await page.locator('.c-message-banner__message').hover({ trial: true });
+    await percySnapshot(page, 'Banner message shown');
+
+    //Wait until Save Banner is gone
+    await page.waitForSelector('.c-message-banner__message', { state: 'detached'});
+    await percySnapshot(page, 'Banner message gone');
+
+});