From 8b2489858034e83e8834d4bb7fdaea880a0d3418 Mon Sep 17 00:00:00 2001
From: Mike <mibberson@3merge.ca>
Date: Thu, 9 Apr 2020 14:42:10 -0400
Subject: [PATCH] fix: cast to boolean

---
 lib/__tests__/comparison.test.js | 3 +++
 lib/utils.js                     | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/lib/__tests__/comparison.test.js b/lib/__tests__/comparison.test.js
index 40e9445..5c98c95 100644
--- a/lib/__tests__/comparison.test.js
+++ b/lib/__tests__/comparison.test.js
@@ -9,9 +9,11 @@ const exp = [
   'bestFriend.name=jon',
   'colleague.age=*',
   '!colour',
+  'new=true',
 ];
 
 const stub = {
+  new: true,
   colour: null,
   foo: 'bar',
   age: 21,
@@ -58,6 +60,7 @@ describe('Comparison', () => {
           { 'bestFriend.name': /jon/gi },
           { 'colleague.age': { $exists: true } },
           { 'colour': { $eq: null } },
+          { 'new': true },
         ],
       }));
 
diff --git a/lib/utils.js b/lib/utils.js
index 3fb8416..fc2799a 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -1,9 +1,12 @@
 const moment = require('moment');
 
+const toBoolean = (v) => v === 'true';
+
 const validate = (v) => ({
   alpha: () => new RegExp(/^[A-Z]+$/, 'gi').test(v),
   date: () => moment(v, moment.ISO_8601, true).isValid(),
   numeric: () => !Number.isNaN(parseFloat(v)),
+  boolean: () => toBoolean(v) || v === 'false',
 });
 
 class ValidatorRunner {
@@ -101,6 +104,7 @@ const cast = (v) => {
   const test = validate(v);
   if (test.date()) return v;
   if (test.numeric()) return parseFloat(v);
+  if (test.boolean()) return toBoolean(v);
   return new RegExp(v, 'i');
 };