1 files changed, 107 insertions, 0 deletions
diff --git a/debian/tests/test_modules/delay/index.d.ts b/debian/tests/test_modules/delay/index.d.ts
new file mode 100644
index 0000000..d3d404b
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+++ b/debian/tests/test_modules/delay/index.d.ts
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+declare namespace delay {
+	interface ClearablePromise<T> extends Promise<T> {
+		/**
+		Clears the delay and settles the promise.
+		*/
+		clear(): void;
+	}
+
+	/**
+	Minimal subset of `AbortSignal` that delay will use if passed.
+	This avoids a dependency on dom.d.ts.
+	The dom.d.ts `AbortSignal` is compatible with this one.
+	*/
+	interface AbortSignal {
+		readonly aborted: boolean;
+		addEventListener(
+			type: 'abort',
+			listener: () => void,
+			options?: {once?: boolean}
+		): void;
+		removeEventListener(type: 'abort', listener: () => void): void;
+	}
+
+	interface Options {
+		/**
+		An optional AbortSignal to abort the delay.
+		If aborted, the Promise will be rejected with an AbortError.
+		*/
+		signal?: AbortSignal;
+	}
+}
+
+type Delay = {
+	/**
+	Create a promise which resolves after the specified `milliseconds`.
+
+	@param milliseconds - Milliseconds to delay the promise.
+	@returns A promise which resolves after the specified `milliseconds`.
+	*/
+	(milliseconds: number, options?: delay.Options): delay.ClearablePromise<void>;
+
+	/**
+	Create a promise which resolves after the specified `milliseconds`.
+
+	@param milliseconds - Milliseconds to delay the promise.
+	@returns A promise which resolves after the specified `milliseconds`.
+	*/
+	<T>(
+		milliseconds: number,
+		options?: delay.Options & {
+			/**
+			Value to resolve in the returned promise.
+			*/
+			value: T;
+		}
+	): delay.ClearablePromise<T>;
+
+	/**
+	Create a promise which resolves after a random amount of milliseconds between `minimum` and `maximum` has passed.
+
+	Useful for tests and web scraping since they can have unpredictable performance. For example, if you have a test that asserts a method should not take longer than a certain amount of time, and then run it on a CI, it could take longer. So with `.range()`, you could give it a threshold instead.
+
+	@param minimum - Minimum amount of milliseconds to delay the promise.
+	@param maximum - Maximum amount of milliseconds to delay the promise.
+	@returns A promise which resolves after a random amount of milliseconds between `maximum` and `maximum` has passed.
+	*/
+	range<T>(
+		minimum: number,
+		maximum: number,
+		options?: delay.Options & {
+			/**
+			Value to resolve in the returned promise.
+			*/
+			value: T;
+		}
+	): delay.ClearablePromise<T>;
+
+	// TODO: Allow providing value type after https://github.com/Microsoft/TypeScript/issues/5413 is resolved.
+	/**
+	Create a promise which rejects after the specified `milliseconds`.
+
+	@param milliseconds - Milliseconds to delay the promise.
+	@returns A promise which rejects after the specified `milliseconds`.
+	*/
+	reject(
+		milliseconds: number,
+		options?: delay.Options & {
+			/**
+			Value to reject in the returned promise.
+			*/
+			value?: unknown;
+		}
+	): delay.ClearablePromise<never>;
+};
+
+declare const delay: Delay & {
+	// The types are intentionally loose to make it work with both Node.js and browser versions of these methods.
+	createWithTimers(timers: {
+		clearTimeout: (timeoutId: any) => void;
+		setTimeout: (callback: (...args: any[]) => void, milliseconds: number, ...args: any[]) => unknown;
+	}): Delay;
+
+	// TODO: Remove this for the next major release.
+	default: typeof delay;
+};
+
+export = delay;