#47568 - Added delegateError + Improve delegate Test Coverage (#318)

* added delegate error / improve delegate coverage / add new mocks

* fixing ci lint

* addressing comments from @ericpromislow

* addressing comments from @tomleb

* fixing apistatus type casting assert

pkg/ext/rest_mock.go

@@ -0,0 +1,66 @@
+// Code generated by MockGen. DO NOT EDIT.
+
+// Package ext is a generated GoMock package.
+package ext
+
+import (
+	context "context"
+	reflect "reflect"
+
+	gomock "go.uber.org/mock/gomock"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// MockUpdatedObjectInfo is a mock of UpdatedObjectInfo interface.
+type MockUpdatedObjectInfo struct {
+	ctrl     *gomock.Controller
+	recorder *MockUpdatedObjectInfoMockRecorder
+	isgomock struct{}
+}
+
+// MockUpdatedObjectInfoMockRecorder is the mock recorder for MockUpdatedObjectInfo.
+type MockUpdatedObjectInfoMockRecorder struct {
+	mock *MockUpdatedObjectInfo
+}
+
+// NewMockUpdatedObjectInfo creates a new mock instance.
+func NewMockUpdatedObjectInfo(ctrl *gomock.Controller) *MockUpdatedObjectInfo {
+	mock := &MockUpdatedObjectInfo{ctrl: ctrl}
+	mock.recorder = &MockUpdatedObjectInfoMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockUpdatedObjectInfo) EXPECT() *MockUpdatedObjectInfoMockRecorder {
+	return m.recorder
+}
+
+// Preconditions mocks base method.
+func (m *MockUpdatedObjectInfo) Preconditions() *v1.Preconditions {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Preconditions")
+	ret0, _ := ret[0].(*v1.Preconditions)
+	return ret0
+}
+
+// Preconditions indicates an expected call of Preconditions.
+func (mr *MockUpdatedObjectInfoMockRecorder) Preconditions() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Preconditions", reflect.TypeOf((*MockUpdatedObjectInfo)(nil).Preconditions))
+}
+
+// UpdatedObject mocks base method.
+func (m *MockUpdatedObjectInfo) UpdatedObject(ctx context.Context, oldObj runtime.Object) (runtime.Object, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "UpdatedObject", ctx, oldObj)
+	ret0, _ := ret[0].(runtime.Object)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// UpdatedObject indicates an expected call of UpdatedObject.
+func (mr *MockUpdatedObjectInfoMockRecorder) UpdatedObject(ctx, oldObj any) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UpdatedObject", reflect.TypeOf((*MockUpdatedObjectInfo)(nil).UpdatedObject), ctx, oldObj)
+}