23 files declare their use of UbercartBrowserTestBase in Ubercart 8.4

AttributeTest.php in uc_attribute/tests/src/Functional/AttributeTest.php

CartBlockTest.php in uc_cart/tests/src/Functional/CartBlockTest.php

CartCheckoutTest.php in uc_cart/tests/src/Functional/CartCheckoutTest.php

CartRulesEventsTest.php in uc_cart/tests/src/Functional/CartRulesEventsTest.php

CartSettingsTest.php in uc_cart/tests/src/Functional/CartSettingsTest.php

CatalogTestBase.php in uc_catalog/tests/src/Functional/CatalogTestBase.php

CheckoutSettingsTest.php in uc_cart/tests/src/Functional/CheckoutSettingsTest.php

CreditCardTest.php in payment/uc_credit/tests/src/Functional/CreditCardTest.php

FileTestBase.php in uc_file/tests/src/Functional/FileTestBase.php

FulfillmentTestBase.php in shipping/uc_fulfillment/tests/src/Functional/FulfillmentTestBase.php

OrderCommentsTest.php in uc_order/tests/src/Functional/OrderCommentsTest.php

OrderPaymentsFormTest.php in payment/uc_payment/tests/src/Functional/OrderPaymentsFormTest.php

OrderTest.php in uc_order/tests/src/Functional/OrderTest.php

PaymentPackTestBase.php in payment/uc_payment_pack/tests/src/Functional/PaymentPackTestBase.php

PaymentPaneTest.php in payment/uc_payment/tests/src/Functional/PaymentPaneTest.php

PaymentRulesEventsTest.php in payment/uc_payment/tests/src/Functional/PaymentRulesEventsTest.php

ProductKitTest.php in uc_product_kit/tests/src/Functional/ProductKitTest.php

ProductTabsTest.php in uc_product/tests/src/Functional/ProductTabsTest.php

ProductTest.php in uc_product/tests/src/Functional/ProductTest.php

RoleCheckoutTest.php in uc_role/tests/src/Functional/RoleCheckoutTest.php

RoleTest.php in uc_role/tests/src/Functional/RoleTest.php

StockTest.php in uc_stock/tests/src/Functional/StockTest.php

TaxTestBase.php in uc_tax/tests/src/Functional/TaxTestBase.php