Merge pull request #5 from chadicus/master

Small changes

README.md

@@ -1,5 +1,4 @@
 # linq
-Library contains classes that follow the LINQ pattern and enable you to express traversal, filter, and projection operations over data
 
 [![Build Status](https://travis-ci.org/subjective-php/linq.svg?branch=master)](https://travis-ci.org/subjective-php/linq)
 [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/subjective-php/linq/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/subjective-php/linq/?branch=master)
@@ -15,7 +14,7 @@ Library contains classes that follow the LINQ pattern and enable you to express
 
 [![Documentation](https://img.shields.io/badge/reference-phpdoc-blue.svg?style=flat)](http://www.pholiophp.org/subjective-php/linq)
 
-Utilities to assist with [PSR-16 SimpleCache](http://www.php-fig.org/psr/psr-16/) implementations.
+Library contains classes that follow the LINQ pattern and enable you to express traversal, filter, and projection operations over data
 
 ## Requirements
 

composer.json

@@ -9,9 +9,10 @@
         "php": "^7.0"
     },
     "require-dev": {
+        "ext-json": "*",
         "chadicus/coding-standard": "^1.7",
-        "phpunit/phpunit": "^6.5",
-        "php-coveralls/php-coveralls": "^2.0"
+        "php-coveralls/php-coveralls": "^2.0",
+        "phpunit/phpunit": "^6.5"
     },
     "autoload": {
         "psr-4": {

tests/LinqCollectionTest.php

@@ -95,6 +95,16 @@ public function firstReturnsDefaultIfEmpty()
         $this->assertSame($default, $this->collection->firstOrDefault($callable, $default));
     }
 
+    /**
+     * @test
+     * @covers ::firstOrDefault
+     */
+    public function firstOrDefaultDoesNotRequireParameters()
+    {
+        $collection = LinqCollection::from([]);
+        $this->assertNull($collection->firstOrDefault());
+    }
+
     /**
      * @test
      * @covers ::count