Wait for ads connection response.

tests/e2e/specs/setup-mc/step-4-complete-campaign.test.js

@@ -358,12 +358,10 @@ test.describe( 'Complete your campaign', () => {
 	);
 
 	test.describe( 'Free Ad Credit', () => {
-		test.beforeAll( async () => {
-			await setupAdsAccountPage.mockAdsAccountConnected();
-		} );
-
 		test( 'should not see the Free Ad Credit section if the account is not eligible', async () => {
+			await setupAdsAccountPage.mockAdsAccountConnected();
 			await completeCampaign.goto();
+			await setupAdsAccountPage.awaitAdsConnectionResponse();
 
 			// Check we are on the correct page.
 			await expect(
@@ -383,6 +381,7 @@ test.describe( 'Complete your campaign', () => {
 				created_timestamp: Math.floor( Date.now() / 1000 ),
 			} );
 			await completeCampaign.goto();
+			await setupAdsAccountPage.awaitAdsConnectionResponse();
 
 			await expect(
 				page.getByText(

tests/e2e/utils/pages/setup-ads/setup-ads-accounts.js

@@ -228,4 +228,18 @@ export default class SetupAdsAccount extends MockRequests {
 		const button = this.getConnectDifferentAccountButton();
 		await button.click();
 	}
+
+	/**
+	 * Await the response for ads connection.
+	 *
+	 * @return {Promise<import('@playwright/test').Response>} The response.
+	 */
+	async awaitAdsConnectionResponse() {
+		return this.page.waitForResponse( ( response ) => {
+			return (
+				response.url().includes( '/gla/ads/connection' ) &&
+				response.status() === 200
+			);
+		} );
+	}
 }