diff --git a/src/channels/channel-config.test.ts b/src/channels/channel-config.test.ts
index 9af6cedc1..807a254e6 100644
--- a/src/channels/channel-config.test.ts
+++ b/src/channels/channel-config.test.ts
@@ -1,4 +1,5 @@
 import { describe, expect, it } from "vitest";
+import type { MsgContext } from "../auto-reply/templating.js";
 import {
   buildChannelKeyCandidates,
   normalizeChannelSlug,
@@ -8,6 +9,7 @@ import {
   applyChannelMatchMeta,
   resolveChannelMatchConfig,
 } from "./channel-config.js";
+import { validateSenderIdentity } from "./sender-identity.js";
 
 describe("buildChannelKeyCandidates", () => {
   it("dedupes and trims keys", () => {
@@ -118,6 +120,33 @@ describe("resolveChannelMatchConfig", () => {
   });
 });
 
+describe("validateSenderIdentity", () => {
+  it("allows direct messages without sender fields", () => {
+    const ctx: MsgContext = { ChatType: "direct" };
+    expect(validateSenderIdentity(ctx)).toEqual([]);
+  });
+
+  it("requires some sender identity for non-direct chats", () => {
+    const ctx: MsgContext = { ChatType: "group" };
+    expect(validateSenderIdentity(ctx)).toContain(
+      "missing sender identity (SenderId/SenderName/SenderUsername/SenderE164)",
+    );
+  });
+
+  it("validates SenderE164 and SenderUsername shape", () => {
+    const ctx: MsgContext = {
+      ChatType: "group",
+      SenderE164: "123",
+      SenderUsername: "@ada lovelace",
+    };
+    expect(validateSenderIdentity(ctx)).toEqual([
+      "invalid SenderE164: 123",
+      'SenderUsername should not include "@": @ada lovelace',
+      "SenderUsername should not include whitespace: @ada lovelace",
+    ]);
+  });
+});
+
 describe("resolveNestedAllowlistDecision", () => {
   it("allows when outer allowlist is disabled", () => {
     expect(
diff --git a/src/channels/sender-identity.test.ts b/src/channels/sender-identity.test.ts
deleted file mode 100644
index 7c93821ef..000000000
--- a/src/channels/sender-identity.test.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import { describe, expect, it } from "vitest";
-import type { MsgContext } from "../auto-reply/templating.js";
-import { validateSenderIdentity } from "./sender-identity.js";
-
-describe("validateSenderIdentity", () => {
-  it("allows direct messages without sender fields", () => {
-    const ctx: MsgContext = { ChatType: "direct" };
-    expect(validateSenderIdentity(ctx)).toEqual([]);
-  });
-
-  it("requires some sender identity for non-direct chats", () => {
-    const ctx: MsgContext = { ChatType: "group" };
-    expect(validateSenderIdentity(ctx)).toContain(
-      "missing sender identity (SenderId/SenderName/SenderUsername/SenderE164)",
-    );
-  });
-
-  it("validates SenderE164 and SenderUsername shape", () => {
-    const ctx: MsgContext = {
-      ChatType: "group",
-      SenderE164: "123",
-      SenderUsername: "@ada lovelace",
-    };
-    expect(validateSenderIdentity(ctx)).toEqual([
-      "invalid SenderE164: 123",
-      'SenderUsername should not include "@": @ada lovelace',
-      "SenderUsername should not include whitespace: @ada lovelace",
-    ]);
-  });
-});