diff --git a/test/gateway/rule/rule-gateway-list-rule-replica-lock-states.test.ts b/test/gateway/rule/rule-gateway-list-rule-replica-lock-states.test.ts
new file mode 100644
index 000000000..f1ba09b7b
--- /dev/null
+++ b/test/gateway/rule/rule-gateway-list-rule-replica-lock-states.test.ts
@@ -0,0 +1,83 @@
+import { RuleReplicaLockStateDTO } from "@/lib/core/dto/rule-dto";
+import RuleGatewayOutputPort from "@/lib/core/port/secondary/rule-gateway-output-port";
+import appContainer from "@/lib/infrastructure/ioc/container-config";
+import GATEWAYS from "@/lib/infrastructure/ioc/ioc-symbols-gateway";
+import { Readable } from "stream";
+import MockRucioServerFactory, { MockEndpoint } from "test/fixtures/rucio-server";
+import { collectStreamedData } from "test/fixtures/stream-test-utils";
+
+
+describe("RuleGateway", () => {
+    beforeEach(() => {
+        fetchMock.doMock();
+        const ruleReplicaLockStateStream = Readable.from([
+            JSON.stringify({
+                "scope": "test",
+                "name": "file1",
+                "rse_id": "e815ec46bfa2427cac191cc36ac94527",
+                "rse": "XRD3",
+                "state": "REPLICATING",
+                "rule_id": "0dcdc93fab714f8b84bad116c409483b"
+            }),
+            JSON.stringify({
+                "scope": "test",
+                "name": "file2",
+                "rse_id": "e815ec46bfa2427cac191cc36ac94527",
+                "rse": "XRD3",
+                "state": "REPLICATING",
+                "rule_id": "0dcdc93fab714f8b84bad116c409483b"
+            }),
+            JSON.stringify({
+                "scope": "test",
+                "name": "file3",
+                "rse_id": "e815ec46bfa2427cac191cc36ac94527",
+                "rse": "XRD3",
+                "state": "REPLICATING",
+                "rule_id": "0dcdc93fab714f8b84bad116c409483b"
+            }),
+            JSON.stringify({
+                "scope": "test",
+                "name": "file4",
+                "rse_id": "e815ec46bfa2427cac191cc36ac94527",
+                "rse": "XRD3",
+                "state": "REPLICATING",
+                "rule_id": "0dcdc93fab714f8b84bad116c409483b"
+            })
+        ])
+
+        const listRuleReplicaLockStatesEndpoint: MockEndpoint = {
+            url: `${MockRucioServerFactory.RUCIO_HOST}/rules/0dcdc93fab714f8b84bad116c409483b/locks`,
+            method: 'GET',
+            includes: 'locks',
+            response: {
+                status: 200,
+                headers: {
+                    'Content-Type': 'application/x-json-stream',
+                },
+                body: ruleReplicaLockStateStream
+            }
+        }
+
+        MockRucioServerFactory.createMockRucioServer(true, [listRuleReplicaLockStatesEndpoint]);
+    });
+
+    afterEach(() => {
+        fetchMock.dontMock();
+    });
+
+    it("Should fetch a list of rule replica lock states", async () => {
+        const ruleGateway: RuleGatewayOutputPort = appContainer.get<RuleGatewayOutputPort>(GATEWAYS.RULE);
+        const listRuleReplicaLockStatesDTO = await ruleGateway.listRuleReplicaLockStates(MockRucioServerFactory.VALID_RUCIO_TOKEN, '0dcdc93fab714f8b84bad116c409483b');
+        expect(listRuleReplicaLockStatesDTO.status).toEqual('success');
+
+        const ruleReplicaLockStateStream = listRuleReplicaLockStatesDTO.stream;
+        if(ruleReplicaLockStateStream == null || ruleReplicaLockStateStream == undefined) {
+            fail('Rule replica lock state stream is null or undefined');
+        }
+
+        const recievedData = await collectStreamedData<RuleReplicaLockStateDTO>(ruleReplicaLockStateStream);
+        expect(recievedData.length).toEqual(4);
+        expect(recievedData[0].rse).toEqual('XRD3');
+        expect(recievedData[0].name).toEqual('file1');
+    });
+});
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