Fix session storage tests with proper module mocking for temp directories

Tests now properly mock the constants module before importing storage functions,
ensuring test data is read/written to temp directories instead of real paths.
This fixes test isolation issues and allows tests to run independently.

🤖 Generated with assistance of OhMyOpenCode (https://github.com/code-yeongyu/oh-my-opencode)

src/tools/session-manager/storage.test.ts

@@ -1,13 +1,23 @@
-import { describe, test, expect, beforeEach, afterEach } from "bun:test"
+import { describe, test, expect, beforeEach, afterEach, mock } from "bun:test"
 import { mkdirSync, writeFileSync, rmSync, existsSync } from "node:fs"
 import { join } from "node:path"
 import { tmpdir } from "node:os"
-import { getAllSessions, getMessageDir, sessionExists, readSessionMessages, readSessionTodos, getSessionInfo } from "./storage"
 
 const TEST_DIR = join(tmpdir(), "omo-test-session-manager")
 const TEST_MESSAGE_STORAGE = join(TEST_DIR, "message")
 const TEST_PART_STORAGE = join(TEST_DIR, "part")
 const TEST_TODO_DIR = join(TEST_DIR, "todos")
+const TEST_TRANSCRIPT_DIR = join(TEST_DIR, "transcripts")
+
+mock.module("./constants", () => ({
+  OPENCODE_STORAGE: TEST_DIR,
+  MESSAGE_STORAGE: TEST_MESSAGE_STORAGE,
+  PART_STORAGE: TEST_PART_STORAGE,
+  TODO_DIR: TEST_TODO_DIR,
+  TRANSCRIPT_DIR: TEST_TRANSCRIPT_DIR,
+}))
+
+const { getAllSessions, getMessageDir, sessionExists, readSessionMessages, readSessionTodos, getSessionInfo } = await import("./storage")
 
 describe("session-manager storage", () => {
   beforeEach(() => {
@@ -18,6 +28,7 @@ describe("session-manager storage", () => {
     mkdirSync(TEST_MESSAGE_STORAGE, { recursive: true })
     mkdirSync(TEST_PART_STORAGE, { recursive: true })
     mkdirSync(TEST_TODO_DIR, { recursive: true })
+    mkdirSync(TEST_TRANSCRIPT_DIR, { recursive: true })
   })
 
   afterEach(() => {
@@ -30,6 +41,7 @@ describe("session-manager storage", () => {
     const sessions = getAllSessions()
     
     expect(Array.isArray(sessions)).toBe(true)
+    expect(sessions).toEqual([])
   })
 
   test("getMessageDir finds session in direct path", () => {
@@ -40,7 +52,7 @@ describe("session-manager storage", () => {
 
     const result = getMessageDir(sessionID)
     
-    expect(result).toBe("")
+    expect(result).toBe(sessionPath)
   })
 
   test("sessionExists returns false for non-existent session", () => {
@@ -49,6 +61,17 @@ describe("session-manager storage", () => {
     expect(exists).toBe(false)
   })
 
+  test("sessionExists returns true for existing session", () => {
+    const sessionID = "ses_exists"
+    const sessionPath = join(TEST_MESSAGE_STORAGE, sessionID)
+    mkdirSync(sessionPath, { recursive: true })
+    writeFileSync(join(sessionPath, "msg_001.json"), JSON.stringify({ id: "msg_001" }))
+
+    const exists = sessionExists(sessionID)
+    
+    expect(exists).toBe(true)
+  })
+
   test("readSessionMessages returns empty array for non-existent session", () => {
     const messages = readSessionMessages("ses_nonexistent")
     
@@ -60,18 +83,20 @@ describe("session-manager storage", () => {
     const sessionPath = join(TEST_MESSAGE_STORAGE, sessionID)
     mkdirSync(sessionPath, { recursive: true })
 
-    writeFileSync(
-      join(sessionPath, "msg_001.json"),
-      JSON.stringify({ id: "msg_001", role: "user", time: { created: 1000 } })
-    )
     writeFileSync(
       join(sessionPath, "msg_002.json"),
       JSON.stringify({ id: "msg_002", role: "assistant", time: { created: 2000 } })
     )
+    writeFileSync(
+      join(sessionPath, "msg_001.json"),
+      JSON.stringify({ id: "msg_001", role: "user", time: { created: 1000 } })
+    )
 
     const messages = readSessionMessages(sessionID)
     
-    expect(messages.length).toBeGreaterThanOrEqual(0)
+    expect(messages.length).toBe(2)
+    expect(messages[0].id).toBe("msg_001")
+    expect(messages[1].id).toBe("msg_002")
   })
 
   test("readSessionTodos returns empty array when no todos exist", () => {
@@ -91,13 +116,14 @@ describe("session-manager storage", () => {
     const sessionPath = join(TEST_MESSAGE_STORAGE, sessionID)
     mkdirSync(sessionPath, { recursive: true })
 
+    const now = Date.now()
     writeFileSync(
       join(sessionPath, "msg_001.json"),
       JSON.stringify({
         id: "msg_001",
         role: "user",
         agent: "build",
-        time: { created: Date.now() - 10000 },
+        time: { created: now - 10000 },
       })
     )
     writeFileSync(
@@ -106,12 +132,16 @@ describe("session-manager storage", () => {
         id: "msg_002",
         role: "assistant",
         agent: "oracle",
-        time: { created: Date.now() },
+        time: { created: now },
       })
     )
 
     const info = getSessionInfo(sessionID)
     
     expect(info).not.toBeNull()
+    expect(info?.id).toBe(sessionID)
+    expect(info?.message_count).toBe(2)
+    expect(info?.agents_used).toContain("build")
+    expect(info?.agents_used).toContain("oracle")
   })
 })