Fix multi-currency e2e tests (#7870)

changelog/dev-fix-multi-currency-e2e-tests

@@ -0,0 +1,5 @@
+Significance: patch
+Type: dev
+Comment: Fix multi-currency e2e tests.
+
+

tests/e2e/config/jest.setup.js

@@ -24,6 +24,9 @@ const ERROR_MESSAGES_TO_IGNORE = [
 	'Scripts that have a dependency on',
 	'was preloaded using link preload but not used within a few seconds',
 	'No UI will be shown. CanMakePayment and hasEnrolledInstrument',
+	'Failed to load resource: the server responded with a status of 404 (Not Found)',
+	'Store "wc/payments" is already registered.',
+	'Preflight request for request with keepalive specified is currently not supported',
 ];
 
 ERROR_MESSAGES_TO_IGNORE.forEach( ( errorMessage ) => {

tests/e2e/specs/wcpay/shopper/shopper-multi-currency-widget.spec.js

@@ -64,6 +64,7 @@ describe( 'Shopper Multi-Currency widget', () => {
 
 	it( 'should display currency switcher widget if multi-currency is enabled', async () => {
 		await merchantWCP.addMulticurrencyWidget();
+		await merchant.logout();
 		await shopper.goToShop();
 		await page.waitForSelector( '.widget select[name=currency]', {
 			visible: true,
@@ -72,6 +73,7 @@ describe( 'Shopper Multi-Currency widget', () => {
 	} );
 
 	it( 'should not display currency switcher widget if multi-currency is disabled', async () => {
+		await merchant.login();
 		await merchantWCP.openWCPSettings();
 		await merchantWCP.deactivateMulticurrency();
 		await shopper.goToShop();