From be502a6c4bbd853dd10f7eb14bf371e40110c12e Mon Sep 17 00:00:00 2001
From: Daniel Perez Alvarez <danielpza@protonmail.com>
Date: Fri, 2 Nov 2018 18:04:02 -0400
Subject: [PATCH] Update prompts-tests.ts

---
 types/prompts/prompts-tests.ts | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/types/prompts/prompts-tests.ts b/types/prompts/prompts-tests.ts
index 0b89cb3721..bd35868c66 100644
--- a/types/prompts/prompts-tests.ts
+++ b/types/prompts/prompts-tests.ts
@@ -1,8 +1,14 @@
 import prompts = require("prompts");
 
-const response = prompts({
-    type: 'number',
-    name: 'value',
-    message: 'Input value to double:',
-    validate: (value: any) => value < 0 ? `Cant be less than zero` : true
-});
+type HasProperty<T, K> = K extends keyof T ? true : false;
+
+(async () => {
+    const response = await prompts({
+        type: "number",
+        name: "value",
+        message: "Input value to double:",
+        validate: (value: any) => (value < 0 ? `Cant be less than zero` : true)
+    });
+    const HasPropValue: HasProperty<typeof response, "value"> = true;
+    const DoesntHavePropAsdf: HasProperty<typeof response, "asdf"> = false;
+})();