diff --git a/src/DateRange.php b/src/DateRange.php
index d7308a7..2a66ddf 100644
--- a/src/DateRange.php
+++ b/src/DateRange.php
@@ -2,23 +2,24 @@
 
 namespace Danoha;
 
-class DateRange {
+class DateRange
+{
 
-	/** @var \DateTime|NULL */
-	protected $from;
+    /** @var \DateTime|NULL */
+    protected $from;
 
-	/** @var \DateTime|NULL */
-	protected $to;
+    /** @var \DateTime|NULL */
+    protected $to;
 
-	/**
-	 * @param \DateTime|NULL $from
-	 * @param \DateTime|NULL $to
-	 */
+    /**
+     * @param \DateTime|NULL $from
+     * @param \DateTime|NULL $to
+     */
     public function __construct(\DateTime $from = NULL, \DateTime $to = NULL)
     {
-		$this->from = $from;
-		$this->to = $to;
-	}
+        $this->from = $from;
+        $this->to = $to;
+    }
 
     /**
      * @return \DateTime|NULL
diff --git a/src/DateRangeCollection.php b/src/DateRangeCollection.php
index 4b19ab8..afcffdc 100644
--- a/src/DateRangeCollection.php
+++ b/src/DateRangeCollection.php
@@ -3,19 +3,21 @@
 namespace Danoha;
 
 
-class DateRangeCollection {
+class DateRangeCollection
+{
 
-	/** @var DateRange[] */
+    /** @var DateRange[] */
     protected $ranges = [];
 
-	/**
-	 * @param array $collection
+    /**
+     * @param array $collection
      * @throws \InvalidArgumentException
-	 */
-	public function __construct($collection) {
-		foreach ($collection as $item) {
-			$this->ranges[] = DateRange::wrap($item);
-		}
+     */
+    public function __construct($collection)
+    {
+        foreach ($collection as $item) {
+            $this->ranges[] = DateRange::wrap($item);
+        }
 
         usort($this->ranges, function (DateRange $a, DateRange $b) {
             $fromA = $a->getFrom();
@@ -53,16 +55,17 @@ public function __construct($collection) {
 
             return 0;
         });
-	}
+    }
 
     /**
      * @return array
      */
-    public function unwrap() {
+    public function unwrap()
+    {
         return array_map(function (DateRange $range) {
             return $range->unwrap();
         }, $this->ranges);
-	}
+    }
 
     /**
      * @return DateRange[]
@@ -168,7 +171,7 @@ public function join($collection = NULL)
         }
 
         return new static(array_filter($ranges));
-	}
+    }
 
     /**
      * @param array|self $subtrahends
diff --git a/tests/DateRange/Wrap.phpt b/tests/DateRange/Wrap.phpt
index e38e058..5452022 100644
--- a/tests/DateRange/Wrap.phpt
+++ b/tests/DateRange/Wrap.phpt
@@ -3,14 +3,14 @@
 require_once './../bootstrap.php';
 use Tester\Assert;
 
-Assert::same(\Danoha\DateRange::class, get_class(\Danoha\DateRange::wrap([ 'from' => NULL, 'to' => NULL, ])));
+Assert::same(\Danoha\DateRange::class, get_class(\Danoha\DateRange::wrap(['from' => NULL, 'to' => NULL,])));
 
-$range = \Danoha\DateRange::wrap([ 'from' => NULL, 'to' => NULL, ]);
+$range = \Danoha\DateRange::wrap(['from' => NULL, 'to' => NULL,]);
 Assert::same($range, \Danoha\DateRange::wrap($range));
 
 $from = new \DateTime('2016-01-01');
 $to = new \DateTime('2017-01-01');
-$range = \Danoha\DateRange::wrap([ 'from' => $from, 'to' => $to, ]);
+$range = \Danoha\DateRange::wrap(['from' => $from, 'to' => $to,]);
 $range2 = new \Danoha\DateRange($from, $to);
 Assert::same($from, $range->getFrom());
 Assert::same($to, $range->getTo());
@@ -21,15 +21,15 @@ Assert::same([
     'to' => $to,
 ], $range->unwrap());
 
-Assert::same(NULL, \Danoha\DateRange::wrap([ new \DateTime('2016-01-01'), NULL, ])->getTo());
-Assert::same(NULL, \Danoha\DateRange::wrap([ NULL, new \DateTime('2016-01-01'), ])->getFrom());
+Assert::same(NULL, \Danoha\DateRange::wrap([new \DateTime('2016-01-01'), NULL,])->getTo());
+Assert::same(NULL, \Danoha\DateRange::wrap([NULL, new \DateTime('2016-01-01'),])->getFrom());
 
 Assert::throws(function () {
-    \Danoha\DateRange::wrap([ 'asd' => '', ]);
+    \Danoha\DateRange::wrap(['asd' => '',]);
 }, InvalidArgumentException::class, 'Expected array with from and to or exactly 2 items');
 
 
 Assert::throws(function () {
-    \Danoha\DateRange::wrap([ 'asd', ]);
+    \Danoha\DateRange::wrap(['asd',]);
 }, InvalidArgumentException::class, 'Expected array with from and to or exactly 2 items');
 
diff --git a/tests/DateRangeCollection/Wrap.phpt b/tests/DateRangeCollection/Wrap.phpt
index cdab7cd..cac8e02 100644
--- a/tests/DateRangeCollection/Wrap.phpt
+++ b/tests/DateRangeCollection/Wrap.phpt
@@ -8,7 +8,7 @@ Assert::same(\Danoha\DateRangeCollection::class, get_class($coll1));
 
 $from = new \DateTime;
 $coll2 = [
-    [ 'from' => $from, 'to' => NULL, ],
+    ['from' => $from, 'to' => NULL,],
 ];
 Assert::same($coll2, (new \Danoha\DateRangeCollection($coll2))->unwrap());