Refactor CSI Translation Library into a struct that is injected into various components to simplify unit testing in future

pkg/controller/volume/persistentvolume/framework_test.go

@@ -521,6 +521,12 @@ func wrapTestWithProvisionCalls(expectedProvisionCalls []provisionCall, toWrap t
 	return wrapTestWithPluginCalls(nil, nil, expectedProvisionCalls, toWrap)
 }
 
+type fakeCSINameTranslator struct{}
+
+func (t fakeCSINameTranslator) GetCSINameFromInTreeName(pluginName string) (string, error) {
+	return "vendor.com/MockCSIPlugin", nil
+}
+
 // wrapTestWithCSIMigrationProvisionCalls returns a testCall that:
 // - configures controller with a volume plugin that emulates CSI migration
 // - calls given testCall
@@ -530,9 +536,7 @@ func wrapTestWithCSIMigrationProvisionCalls(toWrap testCall) testCall {
 			isMigratedToCSI: true,
 		}
 		ctrl.volumePluginMgr.InitPlugins([]vol.VolumePlugin{plugin}, nil /* prober */, ctrl)
-		ctrl.csiNameFromIntreeNameHook = func(string) (string, error) {
-			return "vendor.com/MockCSIPlugin", nil
-		}
+		ctrl.translator = fakeCSINameTranslator{}
 		return toWrap(ctrl, reactor, test)
 	}
 }