test(channels): dedupe inbound contract dispatch capture setup

test/helpers/inbound-contract-capture.ts

@@ -0,0 +1,20 @@
+import type { MsgContext } from "../../src/auto-reply/templating.js";
+import { buildDispatchInboundCaptureMock } from "./dispatch-inbound-capture.js";
+
+export type InboundContextCapture = {
+  ctx: MsgContext | undefined;
+};
+
+export function createInboundContextCapture(): InboundContextCapture {
+  return { ctx: undefined };
+}
+
+export async function buildDispatchInboundContextCapture(
+  importOriginal: <T extends Record<string, unknown>>() => Promise<T>,
+  capture: InboundContextCapture,
+) {
+  const actual = await importOriginal<typeof import("../../src/auto-reply/dispatch.js")>();
+  return buildDispatchInboundCaptureMock(actual, (ctx) => {
+    capture.ctx = ctx as MsgContext;
+  });
+}