diff --git a/tests/integration/acp.go b/tests/integration/acp.go
index 9242a266fc..6604f4602c 100644
--- a/tests/integration/acp.go
+++ b/tests/integration/acp.go
@@ -119,6 +119,121 @@ func addPolicyACP(
 	}
 }
 
+// AddDocActorRelationship will attempt to create a new relationship for a document with an actor.
+type AddDocActorRelationship struct {
+	// NodeID may hold the ID (index) of the node we want to add doc actor relationship on.
+	//
+	// If a value is not provided the relationship will be added in all nodes, unless testing with
+	// sourcehub ACP, in which case the relationship will only be defined once.
+	NodeID immutable.Option[int]
+
+	// The collection in which this document we want to add a relationship for exists.
+	//
+	// This is a required field. To test the invalid usage of not having this arg, use -1 index.
+	CollectionID int
+
+	// The index-identifier of the document within the collection.  This is based on
+	// the order in which it was created, not the ordering of the document within the
+	// database.
+	//
+	// This is a required field. To test the invalid usage of not having this arg, use -1 index.
+	DocID int
+
+	// The name of the relation to set between document and target actor (should be defined in the policy).
+	//
+	// This is a required field.
+	Relation string
+
+	// The target public identity, i.e. the identity of the actor to tie the document's relation with.
+	//
+	// This is a required field. To test the invalid usage of not having this arg, use -1 index.
+	TargetIdentity int
+
+	// The requestor identity, i.e. identity of the actor creating the relationship.
+	// Note: This identity must either own or have managing access defined in the policy.
+	//
+	// This is a required field. To test the invalid usage of not having this arg, use -1 index.
+	RequestorIdentity int
+
+	// Result returns true if it was a no-op due to existing before, and false if a new relationship was made.
+	ExpectedExistence bool
+
+	// Any error expected from the action. Optional.
+	//
+	// String can be a partial, and the test will pass if an error is returned that
+	// contains this string.
+	ExpectedError string
+}
+
+func addDocActorRelationshipACP(
+	s *state,
+	action AddDocActorRelationship,
+) {
+	for i, node := range getNodes(action.NodeID, s.nodes) {
+		var collectionName string
+		if action.CollectionID == -1 {
+			collectionName = ""
+		} else {
+			collection := s.collections[i][action.CollectionID]
+			if !collection.Description().Name.HasValue() {
+				require.Fail(s.t, "Expected non-empty collection name, but it was empty.", s.testCase.Description)
+			}
+			collectionName = collection.Description().Name.Value()
+		}
+
+		var docID string
+		if action.DocID == -1 {
+			docID = ""
+		} else {
+			docID = s.docIDs[action.CollectionID][action.DocID].String()
+		}
+
+		var targetIdentity string
+		if action.TargetIdentity == -1 {
+			targetIdentity = ""
+		} else {
+			optionalTargetIdentity := getIdentity(s, i, immutable.Some(action.TargetIdentity))
+			if !optionalTargetIdentity.HasValue() {
+				require.Fail(s.t, "Expected non-empty target identity, but it was empty.", s.testCase.Description)
+			}
+			targetIdentity = optionalTargetIdentity.Value().DID
+		}
+
+		var requestorIdentity immutable.Option[acpIdentity.Identity]
+		if action.RequestorIdentity == -1 {
+			requestorIdentity = acpIdentity.None
+		} else {
+			requestorIdentity = getIdentity(s, i, immutable.Some(action.RequestorIdentity))
+			if !requestorIdentity.HasValue() {
+				require.Fail(s.t, "Expected non-empty requestor identity, but it was empty.", s.testCase.Description)
+			}
+		}
+		ctx := db.SetContextIdentity(s.ctx, requestorIdentity)
+
+		exists, err := node.AddDocActorRelationship(
+			ctx,
+			collectionName,
+			docID,
+			action.Relation,
+			targetIdentity,
+		)
+
+		if err == nil {
+			require.Equal(s.t, action.ExpectedError, "")
+			require.Equal(s.t, action.ExpectedExistence, exists)
+		}
+
+		expectedErrorRaised := AssertError(s.t, s.testCase.Description, err, action.ExpectedError)
+		assertExpectedErrorRaised(s.t, s.testCase.Description, action.ExpectedError, expectedErrorRaised)
+
+		// The relationship should only be added to a SourceHub chain once - there is no need to loop through
+		// the nodes.
+		if acpType == SourceHubACPType {
+			break
+		}
+	}
+}
+
 func setupSourceHub(s *state) ([]node.ACPOpt, error) {
 	var isACPTest bool
 	for _, a := range s.testCase.Actions {
diff --git a/tests/integration/utils.go b/tests/integration/utils.go
index 2576f30762..a6c70b5ab6 100644
--- a/tests/integration/utils.go
+++ b/tests/integration/utils.go
@@ -299,6 +299,9 @@ func performAction(
 	case AddPolicy:
 		addPolicyACP(s, action)
 
+	case AddDocActorRelationship:
+		addDocActorRelationshipACP(s, action)
+
 	case CreateDoc:
 		createDoc(s, action)