Add unit test for HashConfigMap

Signed-off-by: Balazs Nemeth <[email protected]>

pkg/utils/utils_test.go

@@ -0,0 +1,77 @@
+package utils_test
+
+import (
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	utils "github.com/k8snetworkplumbingwg/sriov-network-operator/pkg/utils"
+)
+
+var _ = Describe("HashConfigMap", func() {
+	It("should hash the ConfigMap correctly", func() {
+		data := make(map[string]string)
+		data["key1"] = "value1"
+		data["key2"] = "value2"
+		cm := &corev1.ConfigMap{
+			Data: data,
+		}
+
+		expectedHash := "7cb7a94f45100d7dc8aadffbcd409f25"
+
+		actualHash := utils.HashConfigMap(cm)
+
+		Expect(actualHash).To(Equal(expectedHash))
+	})
+
+	It("Should not change hash for different resource versions", func() {
+		data := make(map[string]string)
+		data["key1"] = "value1"
+		data["key2"] = "value2"
+
+		cm1 := &corev1.ConfigMap{
+			Data: data,
+			ObjectMeta: metav1.ObjectMeta{
+				ResourceVersion: "68790",
+			},
+		}
+
+		cm2 := &corev1.ConfigMap{
+			Data: data,
+			ObjectMeta: metav1.ObjectMeta{
+				ResourceVersion: "69889",
+			},
+		}
+
+		hash1 := utils.HashConfigMap(cm1)
+		hash2 := utils.HashConfigMap(cm2)
+
+		Expect(hash1).To(Equal(hash2))
+	})
+
+	It("should not change hash for different key orderings", func() {
+		data1 := map[string]string{}
+		data1["key1"] = "value1"
+		data1["key2"] = "value2"
+		data2 := map[string]string{}
+		data2["key1"] = "value1"
+		data2["key2"] = "value2"
+		// Collisions in the hashmap _can_ change the order of keys
+		data2["key2"] = "value2"
+
+		cm1 := &corev1.ConfigMap{
+			Data: data1,
+		}
+
+		cm2 := &corev1.ConfigMap{
+			Data: data2,
+		}
+
+		hash1 := utils.HashConfigMap(cm1)
+		hash2 := utils.HashConfigMap(cm2)
+
+		Expect(hash1).To(Equal(hash2))
+	})
+})

pkg/utils/utils_virtual_test.go

@@ -12,7 +12,7 @@ import (
 	"k8s.io/utils/pointer"
 )
 
-func TestUtils(t *testing.T) {
+func TestUtilsVirtual(t *testing.T) {
 	RegisterFailHandler(Fail)
 	RunSpecs(t, "Utils")
 }