Adding mbsc internal package

This package is going to handle the manipulations on the MBSC objects
The current PR introduces just one function, which will be used by the
MIC controller and unit-test.

Author: yevgeny-shnaidman

internal/mbsc/mbsc.go

@@ -0,0 +1,30 @@
+package mbsc
+
+import (
+	kmmv1beta1 "github.com/kubernetes-sigs/kernel-module-management/api/v1beta1"
+	v1 "k8s.io/api/core/v1"
+)
+
+//go:generate mockgen -source=mbsc.go -package=mbsc -destination=mock_mbsc.go
+
+type MBSC interface {
+	SetModuleImageSpec(mbscObj *kmmv1beta1.ModuleBuildSignConfig, imageSpec *kmmv1beta1.ModuleImageSpec, repoSecret *v1.LocalObjectReference)
+}
+
+type mbsc struct {
+}
+
+func NewMBSC() MBSC {
+	return &mbsc{}
+}
+
+func (m *mbsc) SetModuleImageSpec(mbscObj *kmmv1beta1.ModuleBuildSignConfig, micImageSpec *kmmv1beta1.ModuleImageSpec, repoSecret *v1.LocalObjectReference) {
+	mbscObj.Spec.ImageRepoSecret = repoSecret
+	for i, imageSpec := range mbscObj.Spec.Images {
+		if imageSpec.Image == micImageSpec.Image {
+			mbscObj.Spec.Images[i] = *micImageSpec
+			return
+		}
+	}
+	mbscObj.Spec.Images = append(mbscObj.Spec.Images, *micImageSpec)
+}

internal/mbsc/mbsc_test.go

@@ -0,0 +1,65 @@
+package mbsc
+
+import (
+	kmmv1beta1 "github.com/kubernetes-sigs/kernel-module-management/api/v1beta1"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	v1 "k8s.io/api/core/v1"
+)
+
+var _ = Describe("SetModuleImageSpec", func() {
+	var (
+		mbsc MBSC
+	)
+
+	BeforeEach(func() {
+		mbsc = NewMBSC()
+	})
+
+	It("MBSC does not have any images in spec", func() {
+		mbscObj := kmmv1beta1.ModuleBuildSignConfig{
+			Spec: kmmv1beta1.ModuleImagesConfigSpec{},
+		}
+		imageSpec := kmmv1beta1.ModuleImageSpec{Image: "some image"}
+
+		mbsc.SetModuleImageSpec(&mbscObj, &imageSpec, &v1.LocalObjectReference{})
+
+		Expect(len(mbscObj.Spec.Images)).To(Equal(1))
+		Expect(mbscObj.Spec.ImageRepoSecret).ToNot(BeNil())
+	})
+
+	It("MBSC has different images in spec", func() {
+		mbscObj := kmmv1beta1.ModuleBuildSignConfig{
+			Spec: kmmv1beta1.ModuleImagesConfigSpec{
+				Images: []kmmv1beta1.ModuleImageSpec{
+					kmmv1beta1.ModuleImageSpec{Image: "image 1"},
+					kmmv1beta1.ModuleImageSpec{Image: "image 2"},
+				},
+			},
+		}
+		imageSpec := kmmv1beta1.ModuleImageSpec{Image: "some image"}
+
+		mbsc.SetModuleImageSpec(&mbscObj, &imageSpec, &v1.LocalObjectReference{})
+
+		Expect(len(mbscObj.Spec.Images)).To(Equal(3))
+		Expect(mbscObj.Spec.ImageRepoSecret).ToNot(BeNil())
+	})
+
+	It("MBSC has the image already in spec", func() {
+		mbscObj := kmmv1beta1.ModuleBuildSignConfig{
+			Spec: kmmv1beta1.ModuleImagesConfigSpec{
+				Images: []kmmv1beta1.ModuleImageSpec{
+					kmmv1beta1.ModuleImageSpec{Image: "image 1"},
+					kmmv1beta1.ModuleImageSpec{Image: "image 2", Generation: "generation 2"},
+				},
+			},
+		}
+		imageSpec := kmmv1beta1.ModuleImageSpec{Image: "image 2", Generation: "some generation"}
+
+		mbsc.SetModuleImageSpec(&mbscObj, &imageSpec, &v1.LocalObjectReference{})
+
+		Expect(len(mbscObj.Spec.Images)).To(Equal(2))
+		Expect(mbscObj.Spec.Images[1].Generation).To(Equal("some generation"))
+		Expect(mbscObj.Spec.ImageRepoSecret).ToNot(BeNil())
+	})
+})

internal/mbsc/mock_mbsc.go

@@ -0,0 +1,13 @@
+package mbsc
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+)
+
+func TestSuite(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "MBSC Suite")
+}