diff --git a/test/database/check.go b/test/database/check.go
index 8daab7831..398a1d75c 100644
--- a/test/database/check.go
+++ b/test/database/check.go
@@ -29,23 +29,58 @@ func NewChecker() *Checker {
 }
 
 func (f *Checker) AddOpenShiftClusterDocuments(docs ...*api.OpenShiftClusterDocument) {
-	f.openshiftClusterDocuments = append(f.openshiftClusterDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.openshiftClusterDocuments = append(f.openshiftClusterDocuments, docCopy.(*api.OpenShiftClusterDocument))
+	}
 }
 
 func (f *Checker) AddSubscriptionDocuments(docs ...*api.SubscriptionDocument) {
-	f.subscriptionDocuments = append(f.subscriptionDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.subscriptionDocuments = append(f.subscriptionDocuments, docCopy.(*api.SubscriptionDocument))
+	}
 }
 
 func (f *Checker) AddBillingDocuments(docs ...*api.BillingDocument) {
-	f.billingDocuments = append(f.billingDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.billingDocuments = append(f.billingDocuments, docCopy.(*api.BillingDocument))
+	}
 }
 
 func (f *Checker) AddAsyncOperationDocuments(docs ...*api.AsyncOperationDocument) {
-	f.asyncOperationDocuments = append(f.asyncOperationDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.asyncOperationDocuments = append(f.asyncOperationDocuments, docCopy.(*api.AsyncOperationDocument))
+	}
 }
 
 func (f *Checker) AddPortalDocuments(docs ...*api.PortalDocument) {
-	f.portalDocuments = append(f.portalDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.portalDocuments = append(f.portalDocuments, docCopy.(*api.PortalDocument))
+	}
 }
 
 func (f *Checker) CheckOpenShiftClusters(openShiftClusters *cosmosdb.FakeOpenShiftClusterDocumentClient) (errs []error) {
diff --git a/test/database/deepcopy.go b/test/database/deepcopy.go
new file mode 100644
index 000000000..4d0f51b39
--- /dev/null
+++ b/test/database/deepcopy.go
@@ -0,0 +1,28 @@
+package database
+
+// Copyright (c) Microsoft Corporation.
+// Licensed under the Apache License 2.0.
+
+import (
+	"reflect"
+
+	"github.com/ugorji/go/codec"
+)
+
+var h = &codec.JsonHandle{}
+
+func deepCopy(i interface{}) (interface{}, error) {
+	var b []byte
+	err := codec.NewEncoderBytes(&b, h).Encode(i)
+	if err != nil {
+		return nil, err
+	}
+
+	i = reflect.New(reflect.ValueOf(i).Elem().Type()).Interface()
+	err = codec.NewDecoderBytes(b, h).Decode(&i)
+	if err != nil {
+		return nil, err
+	}
+
+	return i, nil
+}
diff --git a/test/database/fixtures.go b/test/database/fixtures.go
index 8831a6925..b42cb1476 100644
--- a/test/database/fixtures.go
+++ b/test/database/fixtures.go
@@ -56,23 +56,58 @@ func (f *Fixture) WithPortal(db database.Portal) *Fixture {
 }
 
 func (f *Fixture) AddOpenShiftClusterDocuments(docs ...*api.OpenShiftClusterDocument) {
-	f.openshiftClusterDocuments = append(f.openshiftClusterDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.openshiftClusterDocuments = append(f.openshiftClusterDocuments, docCopy.(*api.OpenShiftClusterDocument))
+	}
 }
 
 func (f *Fixture) AddSubscriptionDocuments(docs ...*api.SubscriptionDocument) {
-	f.subscriptionDocuments = append(f.subscriptionDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.subscriptionDocuments = append(f.subscriptionDocuments, docCopy.(*api.SubscriptionDocument))
+	}
 }
 
 func (f *Fixture) AddBillingDocuments(docs ...*api.BillingDocument) {
-	f.billingDocuments = append(f.billingDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.billingDocuments = append(f.billingDocuments, docCopy.(*api.BillingDocument))
+	}
 }
 
 func (f *Fixture) AddAsyncOperationDocuments(docs ...*api.AsyncOperationDocument) {
-	f.asyncOperationDocuments = append(f.asyncOperationDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.asyncOperationDocuments = append(f.asyncOperationDocuments, docCopy.(*api.AsyncOperationDocument))
+	}
 }
 
 func (f *Fixture) AddPortalDocuments(docs ...*api.PortalDocument) {
-	f.portalDocuments = append(f.portalDocuments, docs...)
+	for _, doc := range docs {
+		docCopy, err := deepCopy(doc)
+		if err != nil {
+			panic(err)
+		}
+
+		f.portalDocuments = append(f.portalDocuments, docCopy.(*api.PortalDocument))
+	}
 }
 
 func (f *Fixture) Create() error {