Fix clusterdeployment tests for DeepEquals

TL;DR: When comparing objects coming back from kube, things like
ResourceVersion should be ignored (unless asserting that the object has
not changed on the server, in which case comparing *only*
ResourceVersion should suffice).

We had a couple of tests that were using DeepEquals to compare an object
from the (fake) kube server to one we constructed locally. The
ResourceVersion returned by the fake server [changed in
controller-runtime
0.8.0](kubernetes-sigs/controller-runtime#1306)
which broke tests. We [worked
around](openshift@c7d6052)
that; but the Right Thing To Do™ is to make the comparison ignore
ResourceVersion entirely. It is thusly done via this commit.

pkg/controller/clusterdeployment/clusterdeployment_controller_test.go

@@ -15,14 +15,12 @@ import (
 
 	batchv1 "k8s.io/api/batch/v1"
 	corev1 "k8s.io/api/core/v1"
-	apiequality "k8s.io/apimachinery/pkg/api/equality"
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/apimachinery/pkg/util/diff"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/client-go/kubernetes/scheme"
 	"k8s.io/utils/pointer"
@@ -223,17 +221,14 @@ func TestClusterDeploymentReconcile(t *testing.T) {
 			validate: func(c client.Client, t *testing.T) {
 				cd := getCD(c)
 				if assert.NotNil(t, cd, "no clusterdeployment found") {
-					if e, a := testClusterDeploymentWithDefaultConditions(testClusterDeploymentWithInitializedConditions(
-						testClusterDeploymentWithProvision())), cd; !assert.True(t, apiequality.Semantic.DeepEqual(e, a),
-						"unexpected change in clusterdeployment") {
-						t.Logf("diff = %s", diff.ObjectReflectDiff(e, a))
-					}
+					e := testClusterDeploymentWithDefaultConditions(testClusterDeploymentWithInitializedConditions(
+						testClusterDeploymentWithProvision()))
+					testassert.AssertEqualWhereItCounts(t, e, cd, "unexpected change in clusterdeployment")
 				}
 				provisions := getProvisions(c)
 				if assert.Len(t, provisions, 1, "expected provision to exist") {
-					if e, a := testProvision(), provisions[0]; !assert.True(t, apiequality.Semantic.DeepEqual(e, a), "unexpected change in provision") {
-						t.Logf("diff = %s", diff.ObjectReflectDiff(e, a))
-					}
+					e := testProvision()
+					testassert.AssertEqualWhereItCounts(t, e, provisions[0], "unexpected change in provision")
 				}
 			},
 		},
@@ -2491,11 +2486,10 @@ func testEmptyClusterDeployment() *hivev1.ClusterDeployment {
 			Kind:       "ClusterDeployment",
 		},
 		ObjectMeta: metav1.ObjectMeta{
-			Name:            testName,
-			Namespace:       testNamespace,
-			Finalizers:      []string{hivev1.FinalizerDeprovision},
-			UID:             types.UID("1234"),
-			ResourceVersion: "999",
+			Name:       testName,
+			Namespace:  testNamespace,
+			Finalizers: []string{hivev1.FinalizerDeprovision},
+			UID:        types.UID("1234"),
 		},
 	}
 	return cd
@@ -2709,7 +2703,6 @@ func testProvision() *hivev1.ClusterProvision {
 			Labels: map[string]string{
 				constants.ClusterDeploymentNameLabel: testName,
 			},
-			ResourceVersion: "999",
 		},
 		Spec: hivev1.ClusterProvisionSpec{
 			ClusterDeploymentRef: corev1.LocalObjectReference{

pkg/test/assert/assertions.go

@@ -5,9 +5,13 @@ import (
 	"testing"
 	"time"
 
+	"github.com/google/go-cmp/cmp"
 	testifyassert "github.com/stretchr/testify/assert"
 
 	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
 
 	hivev1 "github.com/openshift/hive/apis/hive/v1"
 )
@@ -71,3 +75,25 @@ func AssertConditions(t *testing.T, cd *hivev1.ClusterDeployment, expectedCondit
 		}
 	}
 }
+
+// AssertEqualWhereItCounts compares two runtime.Objects, ignoring their ResourceVersion and TypeMeta, asserting that they
+// are otherwise equal.
+// This and cleanRVAndTypeMeta were borrowed/adapted from:
+// https://github.com/openshift/ci-tools/blob/179a0edb6c003aa95ae1332692c5b4c79e58f674/pkg/testhelper/testhelper.go#L157-L175
+func AssertEqualWhereItCounts(t *testing.T, x, y runtime.Object, msg string) {
+	xCopy := x.DeepCopyObject()
+	yCopy := y.DeepCopyObject()
+	cleanRVAndTypeMeta(xCopy)
+	cleanRVAndTypeMeta(yCopy)
+	diff := cmp.Diff(xCopy, yCopy)
+	testifyassert.Empty(t, diff, msg)
+}
+
+func cleanRVAndTypeMeta(r runtime.Object) {
+	if metaObject, ok := r.(metav1.Object); ok {
+		metaObject.SetResourceVersion("")
+	}
+	if typeObject, ok := r.(interface{ SetGroupVersionKind(schema.GroupVersionKind) }); ok {
+		typeObject.SetGroupVersionKind(schema.GroupVersionKind{})
+	}
+}