From 7d1d7d909abbd23972b732ce4094715853adcb29 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Mon, 14 Mar 2016 22:17:46 -0700
Subject: [PATCH] Add fp padChars methods.

---
 fp/_mapping.js  | 13 ++++++++++---
 test/test-fp.js | 22 +++++++++++++++++++++-
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/fp/_mapping.js b/fp/_mapping.js
index b69e2efb4..73440c917 100644
--- a/fp/_mapping.js
+++ b/fp/_mapping.js
@@ -72,9 +72,10 @@ exports.aryMethod = {
     'assignInWith', 'assignWith', 'clamp', 'differenceBy', 'differenceWith',
     'getOr', 'inRange', 'intersectionBy', 'intersectionWith', 'invokeArgs',
     'isEqualWith', 'isMatchWith', 'flatMapDepth', 'mergeWith', 'orderBy',
-    'pullAllBy', 'pullAllWith', 'reduce', 'reduceRight', 'replace', 'set',
-    'slice', 'sortedIndexBy', 'sortedLastIndexBy', 'transform', 'unionBy',
-    'unionWith', 'update', 'xorBy', 'xorWith', 'zipWith'
+    'padChars', 'padCharsEnd', 'padCharsStart', 'pullAllBy', 'pullAllWith',
+    'reduce', 'reduceRight', 'replace', 'set', 'slice', 'sortedIndexBy',
+    'sortedLastIndexBy', 'transform', 'unionBy', 'unionWith', 'update',
+    'xorBy', 'xorWith', 'zipWith'
   ],
   '4': [
     'fill', 'setWith', 'updateWith'
@@ -143,6 +144,9 @@ exports.methodRearg = {
   'invokeArgs': [1, 0, 2],
   'isMatchWith': [2, 1, 0],
   'mergeWith': [1, 2, 0],
+  'padChars': [2, 1, 0],
+  'padCharsEnd': [2, 1, 0],
+  'padCharsStart': [2, 1, 0],
   'pullAllBy': [2, 1, 0],
   'pullAllWith': [2, 1, 0],
   'setWith': [3, 1, 2, 0],
@@ -223,6 +227,9 @@ exports.remap = {
   'curryRightN': 'curryRight',
   'getOr': 'get',
   'invokeArgs': 'invoke',
+  'padChars': 'pad',
+  'padCharsEnd': 'padEnd',
+  'padCharsStart': 'padStart',
   'restFrom': 'rest',
   'spreadFrom': 'spread',
   'trimChars': 'trim',
diff --git a/test/test-fp.js b/test/test-fp.js
index 3e33190cb..84fa0b2bf 100644
--- a/test/test-fp.js
+++ b/test/test-fp.js
@@ -1382,6 +1382,26 @@
 
   /*--------------------------------------------------------------------------*/
 
+  QUnit.module('padChars methods');
+
+  _.each(['padChars', 'padCharsStart', 'padCharsEnd'], function(methodName) {
+    var func = fp[methodName],
+        isPad = methodName == 'padChars',
+        isStart = methodName == 'padCharsStart';
+
+    QUnit.test('`_.' + methodName + '` should truncate pad characters to fit the pad length', function(assert) {
+      assert.expect(1);
+
+      if (isPad) {
+        assert.strictEqual(func('_-')(8)('abc'), '_-abc_-_');
+      } else {
+        assert.strictEqual(func('_-')(6)('abc'), isStart ? '_-_abc' : 'abc_-_');
+      }
+    });
+  });
+
+  /*--------------------------------------------------------------------------*/
+
   QUnit.module('fp.partial and fp.partialRight');
 
   _.each(['partial', 'partialRight'], function(methodName) {
@@ -1546,7 +1566,7 @@
 
   /*--------------------------------------------------------------------------*/
 
-  QUnit.module('fp.trimChars');
+  QUnit.module('trimChars methods');
 
   _.each(['trimChars', 'trimCharsStart', 'trimCharsEnd'], function(methodName, index) {
     var func = fp[methodName],