fix(test-suite): gate tx-sender host-chain flag

Author: Eikix

test-suite/fhevm/docker-compose/coprocessor-docker-compose.yml

@@ -225,7 +225,6 @@ services:
       - transaction_sender
       - --database-url=${DATABASE_URL}
       - --gateway-url=${GATEWAY_WS_URL}
-      - --host-chain-url=${RPC_HTTP_URL}
       - --private-key=${TX_SENDER_PRIVATE_KEY}
       - --ciphertext-commits-address=${CIPHERTEXT_COMMITS_ADDRESS}
       - --input-verification-address=${INPUT_VERIFICATION_ADDRESS}

test-suite/fhevm/src/artifacts.test.ts

@@ -59,12 +59,12 @@ describe("serviceNameList", () => {
 });
 
 describe("compose templates", () => {
-  test("transaction sender passes host chain url", async () => {
+  test("transaction sender does not hardcode host chain url", async () => {
     const template = await fs.readFile(
       path.join(TEMPLATE_COMPOSE_DIR, "coprocessor-docker-compose.yml"),
       "utf8",
     );
-    expect(template.includes("--host-chain-url=${RPC_HTTP_URL}")).toBe(true);
+    expect(template.includes("--host-chain-url")).toBe(false);
   });
 
   test("coprocessor local builds are serialized", async () => {

test-suite/fhevm/src/cli.test.ts

@@ -231,13 +231,18 @@ describe("runtime invariants", () => {
     expect(compatPolicyForState(makeState("v0.11.0")).coprocessorArgs["sns-worker"]).toEqual([
       ["--tenant-api-key", "TENANT_API_KEY"],
     ]);
+    expect(compatPolicyForState(makeState("v0.11.0")).coprocessorArgs["transaction-sender"]).toEqual([
+      ["--host-chain-url", "RPC_WS_URL"],
+    ]);
 
     // v0.12.x: all legacy flags removed
     expect(compatPolicyForState(makeState("v0.12.0")).coprocessorArgs["host-listener"]).toBeUndefined();
     expect(compatPolicyForState(makeState("v0.12.0")).coprocessorArgs["sns-worker"]).toBeUndefined();
+    expect(compatPolicyForState(makeState("v0.12.0")).coprocessorArgs["transaction-sender"]).toBeUndefined();
 
     // latest-main SHAs stay modern-only once resolution enforces the floor
     expect(compatPolicyForState(makeState("58aebb0")).coprocessorArgs["host-listener"]).toBeUndefined();
+    expect(compatPolicyForState(makeState("58aebb0")).coprocessorArgs["transaction-sender"]).toBeUndefined();
   });
 
   test("coprocessor depends_on rewrite only renames cloned services", () => {

test-suite/fhevm/src/compat.ts

@@ -1,7 +1,7 @@
 import type { State } from "./types";
 
 type CompatSemver = readonly [number, number, number];
-type CompatService = "host-listener" | "host-listener-poller" | "sns-worker";
+type CompatService = "host-listener" | "host-listener-poller" | "sns-worker" | "transaction-sender";
 
 export type CompatPolicy = {
   coprocessorArgs: Partial<Record<CompatService, Array<readonly [string, string]>>>;
@@ -25,10 +25,19 @@ const COMPAT_PROFILES = {
       KMS_CONNECTOR_CHAIN_ID: "KMS_CONNECTOR_GATEWAY_CHAIN_ID",
     },
   },
+  "legacy-tx-sender-host-chain-url": {
+    coprocessorArgs: {
+      "transaction-sender": [["--host-chain-url", "RPC_WS_URL"]],
+    },
+    connectorEnv: {},
+  },
 } as const satisfies Record<string, CompatPolicy>;
 
 const COMPAT_RULES = {
-  coprocessor: [{ before: [0, 12, 0] as CompatSemver, profile: "legacy-coprocessor-api-keys" }],
+  coprocessor: [
+    { before: [0, 12, 0] as CompatSemver, profile: "legacy-coprocessor-api-keys" },
+    { before: [0, 11, 1] as CompatSemver, profile: "legacy-tx-sender-host-chain-url" },
+  ],
   connector: [{ before: [0, 11, 0] as CompatSemver, profile: "legacy-connector-chain-id" }],
 } as const;