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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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