From 5b4dc54465a0c07efd0d5f61532ca0fdc6ee013e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luiz=20Am=C3=A9rico?= <luizamericop@gmail.com>
Date: Sat, 17 Aug 2019 13:53:11 -0300
Subject: [PATCH] Coerce to integer and set default value for chunk size
 parameter (#4413)

* Enable chunk module tests

* Coerce to integer and set default value for chunk size param
---
 chunk.js                         | 5 +++--
 test/{chunk.js => chunk.test.js} | 5 -----
 2 files changed, 3 insertions(+), 7 deletions(-)
 rename test/{chunk.js => chunk.test.js} (87%)

diff --git a/chunk.js b/chunk.js
index f06b0e93b..8d57b4b19 100644
--- a/chunk.js
+++ b/chunk.js
@@ -1,4 +1,5 @@
 import slice from './slice.js'
+import toInteger from './toInteger.js'
 
 /**
  * Creates an array of elements split into groups the length of `size`.
@@ -18,8 +19,8 @@ import slice from './slice.js'
  * chunk(['a', 'b', 'c', 'd'], 3)
  * // => [['a', 'b', 'c'], ['d']]
  */
-function chunk(array, size) {
-  size = Math.max(size, 0)
+function chunk(array, size = 1) {
+  size = Math.max(toInteger(size), 0)
   const length = array == null ? 0 : array.length
   if (!length || size < 1) {
     return []
diff --git a/test/chunk.js b/test/chunk.test.js
similarity index 87%
rename from test/chunk.js
rename to test/chunk.test.js
index 74121e10d..f8bdc69d2 100644
--- a/test/chunk.js
+++ b/test/chunk.test.js
@@ -42,9 +42,4 @@ describe('chunk', function() {
   it('should coerce `size` to an integer', function() {
     assert.deepStrictEqual(chunk(array, array.length / 4), [[0], [1], [2], [3], [4], [5]]);
   });
-
-  it('should work as an iteratee for methods like `_.map`', function() {
-    var actual = lodashStable.map([[1, 2], [3, 4]], chunk);
-    assert.deepStrictEqual(actual, [[[1], [2]], [[3], [4]]]);
-  });
 });