From 78da6c180d3e75b6b4df2bdbecce496734916d75 Mon Sep 17 00:00:00 2001
From: Mariusz Nowak <mariusz@medikoo.com>
Date: Thu, 10 Oct 2019 16:38:56 +0200
Subject: [PATCH] feat: Validate options.ensureItem in iterable/ensure

---
 iterable/ensure.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/iterable/ensure.js b/iterable/ensure.js
index 6581093..3531056 100644
--- a/iterable/ensure.js
+++ b/iterable/ensure.js
@@ -3,6 +3,7 @@
 var resolveException    = require("../lib/resolve-exception")
   , resolveErrorMessage = require("../lib/resolve-error-message")
   , toShortString       = require("../lib/to-short-string")
+  , ensurePlainFunction = require("../plain-function/ensure")
   , is                  = require("./is");
 
 var invalidItemsLimit = 3, defaultErrorMessage = "%v is not expected iterable value";
@@ -38,6 +39,6 @@ var ensureItems = function (value, options) {
 module.exports = function (value/*, options*/) {
 	var options = arguments[1];
 	if (!is(value, options)) return resolveException(value, defaultErrorMessage, options);
-	if (!options || typeof options.ensureItem !== "function") return value;
+	if (!options || !ensurePlainFunction(options.ensureItem, { isOptional: true })) return value;
 	return ensureItems(value, options);
 };