test: migrate effect cmd ALS test (#27173)

packages/opencode/test/cli/effect-cmd-instance-als.test.ts

@@ -1,8 +1,13 @@
-import { afterEach, expect, test } from "bun:test"
+import { afterEach, expect } from "bun:test"
+import { AppFileSystem } from "@opencode-ai/core/filesystem"
 import { Effect } from "effect"
-import fs from "fs/promises"
+import { fileURLToPath } from "url"
+import { InstanceRef } from "../../src/effect/instance-ref"
 import { Instance } from "../../src/project/instance"
-import { disposeAllInstances, provideTestInstance, tmpdir } from "../fixture/fixture"
+import { disposeAllInstances, TestInstance } from "../fixture/fixture"
+import { testEffect } from "../lib/effect"
+
+const it = testEffect(AppFileSystem.defaultLayer)
 
 afterEach(async () => {
   await disposeAllInstances()
@@ -14,35 +19,40 @@ afterEach(async () => {
 // has lost the outer InstanceRef. Services that read `InstanceState.context`
 // then fall back to `Instance.current` ALS, which must be installed at the JS
 // callback boundary (Node ALS persists across awaits, Effect's fiber context
-// does not). `provideTestInstance` mirrors effectCmd's load + ALS-restore wrap.
+// does not). `it.instance` provides the loaded InstanceRef; the explicit
+// Instance.restore mirrors effectCmd's load + ALS-restore wrap.
 // Pins effect-cmd.ts directly: the pattern test below exercises the load +
-// Instance.restore + dispose triple via the shared `provideTestInstance` fixture,
+// Instance.restore boundary via the shared `it.instance` fixture,
 // so a regression that removed `Instance.restore` from effect-cmd.ts wouldn't
 // fail it. This grep guards the actual production callsite.
-test("effect-cmd.ts wraps the handler body in Instance.restore", async () => {
-  const source = await fs.readFile(new URL("../../src/cli/effect-cmd.ts", import.meta.url), "utf8")
-  expect(source).toContain("Instance.restore(ctx")
-})
+it.live("effect-cmd.ts wraps the handler body in Instance.restore", () =>
+  Effect.gen(function* () {
+    const fs = yield* AppFileSystem.Service
+    const source = yield* fs.readFileString(fileURLToPath(new URL("../../src/cli/effect-cmd.ts", import.meta.url)))
+    expect(source).toContain("Instance.restore(ctx")
+  }),
+)
 
-test("Instance.current reachable from inner runPromise inside Effect.promise(async)", async () => {
-  await using dir = await tmpdir({ git: true })
-  await provideTestInstance({
-    directory: dir.path,
-    fn: () =>
-      Effect.runPromise(
-        Effect.promise(async () => {
-          await new Promise((r) => setTimeout(r, 5))
-          const current = await Effect.runPromise(
-            Effect.sync(() => {
-              try {
-                return Instance.current
-              } catch {
-                return undefined
-              }
-            }),
-          )
-          expect(current?.directory).toBe(dir.path)
+it.instance(
+  "Instance.current reachable after await inside restored Effect.promise(async)",
+  () =>
+    Effect.gen(function* () {
+      const test = yield* TestInstance
+      const ctx = yield* InstanceRef
+      if (!ctx) throw new Error("InstanceRef not provided")
+
+      const current = yield* Effect.promise(() =>
+        Instance.restore(ctx, async () => {
+          await Promise.resolve()
+          try {
+            return Instance.current
+          } catch {
+            return undefined
+          }
         }),
-      ),
-  })
-})
+      )
+
+      expect(current?.directory).toBe(test.directory)
+    }),
+  { git: true },
+)