From 895799b23e8224eb1b623ef1d0ffd508f101389f Mon Sep 17 00:00:00 2001
From: ST-DDT <ST-DDT@gmx.de>
Date: Fri, 22 Jul 2022 15:40:07 +0200
Subject: test: introduce seededTests factory (#838)

---
 src/utils/types.ts | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

(limited to 'src/utils')

diff --git a/src/utils/types.ts b/src/utils/types.ts
index 65c87ebf..012ad58b 100644
--- a/src/utils/types.ts
+++ b/src/utils/types.ts
@@ -7,14 +7,22 @@ export type LiteralUnion<T extends U, U = string> =
   | T
   | (U & { zz_IGNORE_ME?: never });
 
+/**
+ * Basically a function that returns a value.
+ *
+ * For some strange reason this is not the same as `Function`.
+ */
+export type Callable = (...args) => unknown;
+
 /**
  * Type that represents a single method/function name of the given type.
  */
-export type MethodOf<
-  ObjectType,
-  Signature extends (...args) => unknown = (...args) => unknown
-> = {
-  [Key in keyof ObjectType]: ObjectType[Key] extends Signature ? Key : never;
+export type MethodOf<ObjectType, Signature extends Callable = Callable> = {
+  [Key in keyof ObjectType]: ObjectType[Key] extends Signature
+    ? Key extends string
+      ? Key
+      : never
+    : never;
 }[keyof ObjectType];
 
 /**
@@ -22,5 +30,5 @@ export type MethodOf<
  */
 export type MethodsOf<
   ObjectType,
-  Signature extends (...args) => unknown = (...args) => unknown
+  Signature extends Callable = Callable
 > = ReadonlyArray<MethodOf<ObjectType, Signature>>;
-- 
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