test(split-pane): migrate to generators (#27378)

Issue number: N/A

---------

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

Split-pane tests are using legacy syntax

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- Split-pane tests are using modern syntax

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

<!-- If this introduces a breaking change, please describe the impact
and migration path for existing applications below. -->


## Other information

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screenshots of how the component looks before and after the change. -->

core/src/components/split-pane/test/basic/split-pane.e2e-legacy.ts

@@ -1,26 +0,0 @@
-import { expect } from '@playwright/test';
-import { test, Viewports } from '@utils/test/playwright';
-
-test.describe('split-pane: basic', () => {
-  test('should render on the correct side', async ({ page }) => {
-    await page.setViewportSize(Viewports.large);
-    await page.goto(`/src/components/split-pane/test/basic`);
-
-    await expect(page).toHaveScreenshot(`split-pane-${page.getSnapshotSettings()}.png`, { animations: 'disabled' });
-  });
-  test('should collapse on smaller viewports', async ({ page, skip }) => {
-    skip.rtl();
-    await page.goto(`/src/components/split-pane/test/basic`);
-
-    const menu = page.locator('ion-menu');
-    await expect(menu).toBeHidden();
-  });
-  test('should expand on larger viewports', async ({ page, skip }) => {
-    skip.rtl();
-    await page.setViewportSize(Viewports.large);
-    await page.goto(`/src/components/split-pane/test/basic`);
-
-    const menu = page.locator('ion-menu');
-    await expect(menu).toBeVisible();
-  });
-});

core/src/components/split-pane/test/basic/split-pane.e2e.ts

@@ -0,0 +1,31 @@
+import { expect } from '@playwright/test';
+import { configs, test, Viewports } from '@utils/test/playwright';
+
+configs().forEach(({ title, screenshot, config }) => {
+  test.describe(title('split-pane: basic'), () => {
+    test('should render on the correct side', async ({ page }) => {
+      await page.setViewportSize(Viewports.large);
+      await page.goto(`/src/components/split-pane/test/basic`, config);
+
+      await expect(page).toHaveScreenshot(screenshot(`split-pane`));
+    });
+  });
+});
+
+configs({ directions: ['ltr'] }).forEach(({ title, config }) => {
+  test.describe(title('split-pane: functionality'), () => {
+    test('should collapse on smaller viewports', async ({ page }) => {
+      await page.goto(`/src/components/split-pane/test/basic`, config);
+
+      const menu = page.locator('ion-menu');
+      await expect(menu).toBeHidden();
+    });
+    test('should expand on larger viewports', async ({ page }) => {
+      await page.setViewportSize(Viewports.large);
+      await page.goto(`/src/components/split-pane/test/basic`, config);
+
+      const menu = page.locator('ion-menu');
+      await expect(menu).toBeVisible();
+    });
+  });
+});