refactor(core): simplify integration test fixtures (#33292)

packages/core/test/fixture/location.ts

@@ -1,6 +1,8 @@
 import { Location } from "@opencode-ai/core/location"
 import { Project } from "@opencode-ai/core/project"
 import { AbsolutePath } from "@opencode-ai/core/schema"
+import { Effect, Layer } from "effect"
+import { tmpdir } from "./tmpdir"
 
 export function location(ref: Location.Ref, input: { projectDirectory?: AbsolutePath; vcs?: Project.Vcs } = {}) {
   return {
@@ -10,3 +12,15 @@ export function location(ref: Location.Ref, input: { projectDirectory?: Absolute
     vcs: input.vcs,
   } satisfies Location.Interface
 }
+
+export const tempLocationLayer = Layer.unwrap(
+  Effect.acquireRelease(
+    Effect.promise(() => tmpdir()),
+    (tmp) => Effect.promise(() => tmp[Symbol.asyncDispose]()),
+  ).pipe(
+    Effect.map((tmp) => {
+      const ref = Location.Ref.make({ directory: AbsolutePath.make(tmp.path) })
+      return Layer.succeed(Location.Service, Location.Service.of(location(ref)))
+    }),
+  ),
+)