fix(update): align no-update dependency injection

src/commands/update-command.ts

@@ -15,7 +15,7 @@ import {
   type CurrentInstall,
   type InstalledPackageState,
 } from '../utils/package-manager-detector';
-import { compareVersionsWithPrerelease } from '../utils/update-checker';
+import { compareVersionsWithPrerelease, type UpdateResult } from '../utils/update-checker';
 import { getVersion } from '../utils/version';
 
 /**
@@ -28,29 +28,6 @@ export interface UpdateOptions {
 
 type TargetTag = 'latest' | 'dev';
 
-type UpdateCheckResult =
-  | {
-      status: 'update_available';
-      current?: string;
-      latest?: string;
-      message?: string;
-      reason?: string;
-    }
-  | {
-      status: 'check_failed';
-      message?: string;
-      latest?: string;
-      current?: string;
-      reason?: string;
-    }
-  | {
-      status: 'no_update';
-      reason?: string;
-      latest?: string;
-      current?: string;
-      message?: string;
-    };
-
 export interface UpdateCommandDeps {
   initUI: typeof initUI;
   getVersion: typeof getVersion;
@@ -64,7 +41,7 @@ export interface UpdateCommandDeps {
     interactive: boolean,
     channel: 'npm' | 'direct',
     targetTag: TargetTag
-  ) => Promise<UpdateCheckResult>;
+  ) => Promise<UpdateResult>;
   spawn: typeof spawn;
 }
 
@@ -73,14 +50,9 @@ async function loadCheckForUpdates(
   interactive: boolean,
   channel: 'npm' | 'direct',
   targetTag: TargetTag
-): Promise<UpdateCheckResult> {
+): Promise<UpdateResult> {
   const { checkForUpdates } = await import('../utils/update-checker');
-  return checkForUpdates(
+  return checkForUpdates(currentVersion, interactive, channel, targetTag);
-    currentVersion,
-    interactive,
-    channel,
-    targetTag
-  ) as Promise<UpdateCheckResult>;
 }
 
 const defaultDeps: UpdateCommandDeps = {
@@ -150,7 +122,7 @@ export async function handleUpdateCommand(
   }
 
   if (updateResult.status === 'no_update') {
-    handleNoUpdate(updateResult.reason);
+    handleNoUpdate(updateResult.reason, currentVersion);
     return;
   }
 
@@ -215,9 +187,7 @@ function handleCheckFailed(
 /**
  * Handle no update available
  */
-function handleNoUpdate(reason: string | undefined): void {
+function handleNoUpdate(reason: string | undefined, version: string): void {
-  const version = getVersion();
-
   let message = `You are already on the latest version (${version})`;
 
   switch (reason) {

src/utils/update-checker.ts

@@ -21,7 +21,7 @@ interface UpdateCache {
   dismissed_version: string | null;
 }
 
-interface UpdateResult {
+export interface UpdateResult {
   status: 'update_available' | 'no_update' | 'check_failed';
   reason?: string;
   latest?: string;

tests/unit/commands/update-command-current-install.test.ts

@@ -1,5 +1,6 @@
 import { afterEach, beforeEach, describe, expect, it } from 'bun:test';
 import { handleUpdateCommand, type UpdateCommandDeps } from '../../../src/commands/update-command';
+import type { UpdateResult } from '../../../src/utils/update-checker';
 
 let logLines: string[] = [];
 let spawnCalls: Array<{ command: string; args: string[]; env?: NodeJS.ProcessEnv }> = [];
@@ -18,13 +19,8 @@ type Scenario = {
   afterState: InstalledState;
 };
 
-type UpdateCheckResult =
-  | { status: 'update_available'; current: string; latest: string }
-  | { status: 'no_update' }
-  | { status: 'check_failed'; message: string };
-
 let scenario: Scenario;
-let updateCheckResult: UpdateCheckResult;
+let updateCheckResult: UpdateResult;
 let currentInstallOverride: ReturnType<typeof installDescriptor>;
 let stateReads = 0;
 
@@ -39,7 +35,7 @@ function installDescriptor() {
   };
 }
 
-function createDeps(): UpdateCommandDeps {
+function createDeps(overrides: Partial<UpdateCommandDeps> = {}): UpdateCommandDeps {
   return {
     initUI: async () => {},
     getVersion: () => '7.67.0-dev.5',
@@ -95,6 +91,7 @@ function createDeps(): UpdateCommandDeps {
         },
       };
     }) as typeof UpdateCommandDeps.prototype.spawn,
+    ...overrides,
   };
 }
 
@@ -196,6 +193,20 @@ describe('update-command current install handling', () => {
     expect(exitCodes).toContain(0);
   });
 
+  it('uses the injected version in the no-update message', async () => {
+    updateCheckResult = { status: 'no_update' };
+
+    await handleUpdateCommand(
+      {},
+      createDeps({
+        getVersion: () => '9.9.9-test.1',
+      })
+    );
+
+    expect(logLines.join('\n')).toContain('latest version (9.9.9-test.1)');
+    expect(exitCodes).toContain(0);
+  });
+
   it('accepts a newer installed version when the dist-tag moves during update', async () => {
     scenario = {
       beforeState: { version: '7.67.0-dev.5', packageJsonMtimeMs: 100, scriptMtimeMs: 100 },