playwright: add test for opening a file via context menu

Contributed on behalf of STMicroelectronics

Signed-off-by: Olaf Lessenich <[email protected]>

examples/playwright/src/tests/theia-electron-app.test.ts

@@ -123,5 +123,15 @@ test.describe('Theia Electron Application', () => {
         await (await menuBar.openMenu('View')).clickMenuItem('Explorer');
         expect(await explorerView.isDisplayed()).toBe(false);
     });
+
+    test('open a file via the context menu', async () => {
+        await (await menuBar.openMenu('View')).clickMenuItem('Explorer');
+        const explorerView = new TheiaExplorerView(app);
+        expect(await explorerView.isDisplayed()).toBe(true);
+        await app.page.getByText('sample.txt').click({ button: 'right' });
+        await app.page.locator('li').filter({ hasText: /^Open$/ }).locator('div').first().click();
+        const span = await app.page.waitForSelector('span:has-text("content line 2")');
+        expect(await span.isVisible()).toBe(true);
+    });
 });