From 4ae7c77f8abda8d51ddf52ee6e07890fa19b6629 Mon Sep 17 00:00:00 2001
From: Dax <mail@thdxr.com>
Date: Wed, 15 Apr 2026 11:50:24 -0400
Subject: migrate: move flock and hash utilities to shared package (#22640)

---
 packages/shared/test/lib/effect.ts | 53 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 packages/shared/test/lib/effect.ts

(limited to 'packages/shared/test/lib')

diff --git a/packages/shared/test/lib/effect.ts b/packages/shared/test/lib/effect.ts
new file mode 100644
index 000000000..131ec5cc6
--- /dev/null
+++ b/packages/shared/test/lib/effect.ts
@@ -0,0 +1,53 @@
+import { test, type TestOptions } from "bun:test"
+import { Cause, Effect, Exit, Layer } from "effect"
+import type * as Scope from "effect/Scope"
+import * as TestClock from "effect/testing/TestClock"
+import * as TestConsole from "effect/testing/TestConsole"
+
+type Body<A, E, R> = Effect.Effect<A, E, R> | (() => Effect.Effect<A, E, R>)
+
+const body = <A, E, R>(value: Body<A, E, R>) => Effect.suspend(() => (typeof value === "function" ? value() : value))
+
+const run = <A, E, R, E2>(value: Body<A, E, R | Scope.Scope>, layer: Layer.Layer<R, E2>) =>
+  Effect.gen(function* () {
+    const exit = yield* body(value).pipe(Effect.scoped, Effect.provide(layer), Effect.exit)
+    if (Exit.isFailure(exit)) {
+      for (const err of Cause.prettyErrors(exit.cause)) {
+        yield* Effect.logError(err)
+      }
+    }
+    return yield* exit
+  }).pipe(Effect.runPromise)
+
+const make = <R, E>(testLayer: Layer.Layer<R, E>, liveLayer: Layer.Layer<R, E>) => {
+  const effect = <A, E2>(name: string, value: Body<A, E2, R | Scope.Scope>, opts?: number | TestOptions) =>
+    test(name, () => run(value, testLayer), opts)
+
+  effect.only = <A, E2>(name: string, value: Body<A, E2, R | Scope.Scope>, opts?: number | TestOptions) =>
+    test.only(name, () => run(value, testLayer), opts)
+
+  effect.skip = <A, E2>(name: string, value: Body<A, E2, R | Scope.Scope>, opts?: number | TestOptions) =>
+    test.skip(name, () => run(value, testLayer), opts)
+
+  const live = <A, E2>(name: string, value: Body<A, E2, R | Scope.Scope>, opts?: number | TestOptions) =>
+    test(name, () => run(value, liveLayer), opts)
+
+  live.only = <A, E2>(name: string, value: Body<A, E2, R | Scope.Scope>, opts?: number | TestOptions) =>
+    test.only(name, () => run(value, liveLayer), opts)
+
+  live.skip = <A, E2>(name: string, value: Body<A, E2, R | Scope.Scope>, opts?: number | TestOptions) =>
+    test.skip(name, () => run(value, liveLayer), opts)
+
+  return { effect, live }
+}
+
+// Test environment with TestClock and TestConsole
+const testEnv = Layer.mergeAll(TestConsole.layer, TestClock.layer())
+
+// Live environment - uses real clock, but keeps TestConsole for output capture
+const liveEnv = TestConsole.layer
+
+export const it = make(testEnv, liveEnv)
+
+export const testEffect = <R, E>(layer: Layer.Layer<R, E>) =>
+  make(Layer.provideMerge(layer, testEnv), Layer.provideMerge(layer, liveEnv))
-- 
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