17 files declare their use of PaymentGateway in Commerce Core 8.2

CouponRedemptionPaneTest.php in modules/promotion/tests/src/FunctionalJavascript/CouponRedemptionPaneTest.php

EntityPrintOrderRendererTest.php in modules/order/tests/src/Kernel/EntityPrintOrderRendererTest.php

FilterPaymentGatewaysEventTest.php in modules/payment/tests/src/Kernel/FilterPaymentGatewaysEventTest.php

OffsiteOrderDataTest.php in modules/payment/tests/src/FunctionalJavascript/OffsiteOrderDataTest.php

OrderAssignmentTest.php in modules/order/tests/src/Kernel/OrderAssignmentTest.php

OrderPaidSubscriberTest.php in modules/payment/tests/src/Kernel/OrderPaidSubscriberTest.php

OrderReceiptTest.php in modules/order/tests/src/Kernel/OrderReceiptTest.php

PaymentAccessTest.php in modules/payment/tests/src/Kernel/PaymentAccessTest.php

PaymentCheckoutTest.php in modules/payment/tests/src/FunctionalJavascript/PaymentCheckoutTest.php

PaymentGatewayFormTest.php in modules/payment/tests/src/FunctionalJavascript/PaymentGatewayFormTest.php

PaymentGatewayTest.php in modules/payment/tests/src/Functional/PaymentGatewayTest.php

PaymentMethodAccessTest.php in modules/payment/tests/src/Kernel/PaymentMethodAccessTest.php

PaymentMethodStorageTest.php in modules/payment/tests/src/Kernel/PaymentMethodStorageTest.php

PaymentMethodTest.php in modules/payment/tests/src/Kernel/Entity/PaymentMethodTest.php

PaymentOptionsBuilderTest.php in modules/payment/tests/src/Kernel/PaymentOptionsBuilderTest.php

PaymentOrderUpdaterTest.php in modules/payment/tests/src/Kernel/PaymentOrderUpdaterTest.php

PaymentTest.php in modules/payment/tests/src/Kernel/Entity/PaymentTest.php