update_test: Create ImagePolicy per subtest

In TestImageUpdateAutomation_e2e, move the ImagePolicy to be created per
subtest and not shared in the common test environment. This makes the
tests more independent of each other.

Signed-off-by: Sunny <darkowlzz@protonmail.com>

controllers/testdata/appconfig-setters-expected/deploy.yaml

@@ -7,4 +7,4 @@ spec:
     spec:
       containers:
         - name: hello
-          image: helloworld:v1.3.1 # SETTER_SITE
+          image: helloworld:1.0.1 # SETTER_SITE

controllers/update_test.go

@@ -353,15 +353,20 @@ func TestImageUpdateAutomation_e2e(t *testing.T) {
 			Name:      imagePolicyName,
 			Namespace: namespace,
 		}
-		// NB not testing the image reflector controller; this
-		// will make a "fully formed" ImagePolicy object.
-		err = createImagePolicyWithLatestImage(imagePolicyName, namespace, "not-expected-to-exist", "1.x", latestImage)
-		g.Expect(err).ToNot(HaveOccurred(), "failed to create ImagePolicy resource")
 
-		// Create ImageUpdateAutomation resource for each of the test cases
-		// and cleanup at the end.
+		// Create ImagePolicy and ImageUpdateAutomation resource for each of the
+		// test cases and cleanup at the end.
 
 		t.Run("PushSpec", func(t *testing.T) {
+			// NB not testing the image reflector controller; this
+			// will make a "fully formed" ImagePolicy object.
+			err = createImagePolicyWithLatestImage(imagePolicyName, namespace, "not-expected-to-exist", "1.x", latestImage)
+			g.Expect(err).ToNot(HaveOccurred(), "failed to create ImagePolicy resource")
+
+			defer func() {
+				g.Expect(deleteImagePolicy(imagePolicyName, namespace)).ToNot(HaveOccurred())
+			}()
+
 			imageUpdateAutomationName := "update-" + randStringRunes(5)
 			pushBranch := "pr-" + randStringRunes(5)
 
@@ -435,6 +440,13 @@ func TestImageUpdateAutomation_e2e(t *testing.T) {
 		})
 
 		t.Run("with update strategy setters", func(t *testing.T) {
+			err = createImagePolicyWithLatestImage(imagePolicyName, namespace, "not-expected-to-exist", "1.x", latestImage)
+			g.Expect(err).ToNot(HaveOccurred(), "failed to create ImagePolicy resource")
+
+			defer func() {
+				g.Expect(deleteImagePolicy(imagePolicyName, namespace)).ToNot(HaveOccurred())
+			}()
+
 			// Insert a setter reference into the deployment file,
 			// before creating the automation object itself.
 			commitInRepo(g, cloneLocalRepoURL, branch, "Install setter marker", func(tmp string) {
@@ -477,6 +489,13 @@ func TestImageUpdateAutomation_e2e(t *testing.T) {
 		})
 
 		t.Run("no reconciliation when object is suspended", func(t *testing.T) {
+			err = createImagePolicyWithLatestImage(imagePolicyName, namespace, "not-expected-to-exist", "1.x", latestImage)
+			g.Expect(err).ToNot(HaveOccurred(), "failed to create ImagePolicy resource")
+
+			defer func() {
+				g.Expect(deleteImagePolicy(imagePolicyName, namespace)).ToNot(HaveOccurred())
+			}()
+
 			// Create the automation object.
 			updateKey := types.NamespacedName{
 				Namespace: namespace,
@@ -1046,6 +1065,13 @@ func deleteImageUpdateAutomation(name, namespace string) error {
 	return testEnv.Delete(context.Background(), update)
 }
 
+func deleteImagePolicy(name, namespace string) error {
+	imagePolicy := &imagev1_reflect.ImagePolicy{}
+	imagePolicy.Name = name
+	imagePolicy.Namespace = namespace
+	return testEnv.Delete(context.Background(), imagePolicy)
+}
+
 func createSigningKeyPair(name, namespace string) (*openpgp.Entity, error) {
 	pgpEntity, err := openpgp.NewEntity("", "", "", nil)
 	if err != nil {

pkg/update/result_test.go

@@ -19,7 +19,7 @@ func mustRef(ref string) imageRef {
 	return imageRef{r, types.NamespacedName{}}
 }
 
-func TestMustRef(t *testing.T) {
+func TestImageRef(t *testing.T) {
 	g := NewWithT(t)
 
 	t.Run("gives each component of an image ref", func(t *testing.T) {