diff --git a/tests/AssertTest.php b/tests/AssertTest.php
index d6eea0e6..15527cfa 100644
--- a/tests/AssertTest.php
+++ b/tests/AssertTest.php
@@ -13,8 +13,8 @@
 
 use ArrayIterator;
 use ArrayObject;
-use Exception;
 use Error;
+use Exception;
 use LogicException;
 use RuntimeException;
 use stdClass;
@@ -516,12 +516,12 @@ public function getTests()
             array('uuid', array('ff6f8cb0-c57da-51e1-9b21-0800200c9a66'), false),
             array('uuid', array('af6f8cb-c57d-11e1-9b21-0800200c9a66'), false),
             array('uuid', array('3f6f8cb0-c57d-11e1-9b21-0800200c9a6'), false),
-            array('throws', array(function() { throw new LogicException('test'); }, 'LogicException'), true),
-            array('throws', array(function() { throw new LogicException('test'); }, 'IllogicException'), false),
-            array('throws', array(function() { throw new Exception('test'); }), true),
-            array('throws', array(function() { trigger_error('test'); }, 'Throwable'), true, false, 70000),
-            array('throws', array(function() { trigger_error('test'); }, 'Unthrowable'), false, false, 70000),
-            array('throws', array(function() { throw new Error(); }, 'Throwable'), true, true, 70000),
+            array('throws', array(function () { throw new LogicException('test'); }, 'LogicException'), true),
+            array('throws', array(function () { throw new LogicException('test'); }, 'IllogicException'), false),
+            array('throws', array(function () { throw new Exception('test'); }), true),
+            array('throws', array(function () { trigger_error('test'); }, 'Throwable'), true, false, 70000),
+            array('throws', array(function () { trigger_error('test'); }, 'Unthrowable'), false, false, 70000),
+            array('throws', array(function () { throw new Error(); }, 'Throwable'), true, true, 70000),
             array('ip', array('192.168.0.1'), true),
             array('ip', array(new ToStringClass('192.168.0.1')), true),
             array('ip', array('255.255.255.255'), true),
@@ -698,7 +698,7 @@ public function getStringConversions()
             array('string', array(self::getResource()), 'Expected a string. Got: resource'),
 
             array('eq', array('1', '2'), 'Expected a value equal to "2". Got: "1"'),
-            array('eq', array(new ToStringClass("XXX"), new ToStringClass("YYY")), 'Expected a value equal to Webmozart\Assert\Tests\ToStringClass: "YYY". Got: Webmozart\Assert\Tests\ToStringClass: "XXX"'),
+            array('eq', array(new ToStringClass('XXX'), new ToStringClass('YYY')), 'Expected a value equal to Webmozart\Assert\Tests\ToStringClass: "YYY". Got: Webmozart\Assert\Tests\ToStringClass: "XXX"'),
             array('eq', array(1, 2), 'Expected a value equal to 2. Got: 1'),
             array('eq', array(true, false), 'Expected a value equal to false. Got: true'),
             array('eq', array(true, null), 'Expected a value equal to null. Got: true'),
@@ -732,8 +732,8 @@ public function testAnUnknownMethodThrowsABadMethodCall()
 /**
  * @ignore
  */
-class ToStringClass {
-
+class ToStringClass
+{
     /**
      * @var string
      */
diff --git a/tests/BaseTestCase.php b/tests/BaseTestCase.php
index c48b10d0..07a99c7b 100644
--- a/tests/BaseTestCase.php
+++ b/tests/BaseTestCase.php
@@ -20,15 +20,17 @@ class BaseTestCase extends TestCase
      * @param string $exceptionMessage
      * @param int $exceptionCode
      */
-    public function setExpectedException($exceptionName, $exceptionMessage = '', $exceptionCode = null) {
+    public function setExpectedException($exceptionName, $exceptionMessage = '', $exceptionCode = null)
+    {
         if (method_exists($this, 'expectException')) {
             $this->expectException($exceptionName);
-            if($exceptionMessage) {
+            if ($exceptionMessage) {
                 $this->expectExceptionMessage($exceptionMessage);
             }
-            if( $exceptionCode) {
+            if ($exceptionCode) {
                 $this->expectExceptionCode($exceptionCode);
             }
+
             return;
         }
         parent::setExpectedException($exceptionName, $exceptionMessage, $exceptionCode);
diff --git a/tests/ProjectCodeTest.php b/tests/ProjectCodeTest.php
index d7f611c7..822f5d69 100644
--- a/tests/ProjectCodeTest.php
+++ b/tests/ProjectCodeTest.php
@@ -2,9 +2,9 @@
 
 namespace Webmozart\Assert\Tests;
 
-use Webmozart\Assert\Bin\MixinGenerator;
 use ReflectionClass;
 use ReflectionMethod;
+use Webmozart\Assert\Bin\MixinGenerator;
 
 /**
  * @coversNothing
@@ -20,7 +20,7 @@ class ProjectCodeTest extends BaseTestCase
      */
     public static function doSetUpBeforeClass()
     {
-        self::$readmeContent = file_get_contents(__DIR__ . '/../README.md');
+        self::$readmeContent = file_get_contents(__DIR__.'/../README.md');
 
         $rc = new ReflectionClass('\Webmozart\Assert\Mixin');
         self::$assertDocComment = $rc->getDocComment();
@@ -38,13 +38,14 @@ public static function doSetUpBeforeClass()
      */
     public function testHasNullOr($method)
     {
-        $fullMethodName = 'nullOr' . ucfirst($method);
+        $fullMethodName = 'nullOr'.ucfirst($method);
 
         if ($method === 'notNull' || $method === 'null') {
             $this->addToAssertionCount(1);
+
             return;
         }
-        $correct = strpos( (string)self::$assertDocComment,'@method static void ' . $fullMethodName);
+        $correct = strpos((string) self::$assertDocComment, '@method static void '.$fullMethodName);
         if (!$correct) {
             $correct = in_array($fullMethodName, self::$mixinMethodNames, true);
         }
@@ -56,7 +57,7 @@ public function testHasNullOr($method)
             ));
         }
 
-       $this->addToAssertionCount(1);
+        $this->addToAssertionCount(1);
     }
 
     /**
@@ -66,9 +67,9 @@ public function testHasNullOr($method)
      */
     public function testHasAll($method)
     {
-        $fullMethodName = 'all' . ucfirst($method);
+        $fullMethodName = 'all'.ucfirst($method);
 
-        $correct = strpos((string) self::$assertDocComment,'@method static void ' . $fullMethodName);
+        $correct = strpos((string) self::$assertDocComment, '@method static void '.$fullMethodName);
         if (!$correct) {
             $correct = in_array($fullMethodName, self::$mixinMethodNames, true);
         }
@@ -90,9 +91,9 @@ public function testHasAll($method)
      */
     public function testIsInReadme($method)
     {
-        $correct = strpos((string) self::$readmeContent,$method);
+        $correct = strpos((string) self::$readmeContent, $method);
 
-        if($correct === false) {
+        if ($correct === false) {
             $this->fail(sprintf(
                 'All methods must be documented in the README.md, please add the "%s" method.',
                 $method
@@ -126,7 +127,6 @@ public function testHasThrowsAnnotation($method)
                 $method->getName()
             )
         );
-
     }
 
     /**
@@ -138,13 +138,14 @@ public function testHasCorrespondingStaticAnalysisFile($method)
     {
         $doc = $method->getDocComment();
 
-        if($doc === false || strpos($doc, '@psalm-assert') === false) {
+        if ($doc === false || strpos($doc, '@psalm-assert') === false) {
             $this->addToAssertionCount(1);
+
             return;
         }
 
         $this->assertFileExists(
-            __DIR__ . '/static-analysis/assert-'. $method->getName() . '.php'
+            __DIR__.'/static-analysis/assert-'.$method->getName().'.php'
         );
     }
 
@@ -152,14 +153,15 @@ public function testMixinIsUpToDateVersion()
     {
         if (version_compare(PHP_VERSION, '7.2.0') < 0) {
             $this->markTestSkipped('mixin generator is implemented using php 7.2 features');
+
             return;
         }
 
-        require_once __DIR__ . '/../bin/src/MixinGenerator.php';
+        require_once __DIR__.'/../bin/src/MixinGenerator.php';
 
         $generator = new MixinGenerator();
 
-        $actual = file_get_contents(__DIR__ . '/../src/Mixin.php');
+        $actual = file_get_contents(__DIR__.'/../src/Mixin.php');
 
         $this->assertEquals($generator->generate(), $actual, 'please regenerate Mixin with `php bin/generate.php` command in the project root');
     }
@@ -169,7 +171,7 @@ public function testMixinIsUpToDateVersion()
      */
     public function providesMethodNames()
     {
-        return array_map(function($value) {
+        return array_map(function ($value) {
             return array($value->getName());
         }, $this->getMethods());
     }
@@ -179,7 +181,7 @@ public function providesMethodNames()
      */
     public function provideMethods()
     {
-        return array_map(function($value) {
+        return array_map(function ($value) {
             return array($value);
         }, $this->getMethods());
     }
diff --git a/tests/static-analysis/assert-isNotA.php b/tests/static-analysis/assert-isNotA.php
index 5aa2c1f9..f8b9ba29 100644
--- a/tests/static-analysis/assert-isNotA.php
+++ b/tests/static-analysis/assert-isNotA.php
@@ -2,8 +2,8 @@
 
 namespace Webmozart\Assert\Tests\StaticAnalysis;
 
-use stdClass;
 use DateTime;
+use stdClass;
 use Webmozart\Assert\Assert;
 
 /**
diff --git a/tests/static-analysis/assert-keyNotExists.php b/tests/static-analysis/assert-keyNotExists.php
index 0edc8fcd..de14f1e9 100644
--- a/tests/static-analysis/assert-keyNotExists.php
+++ b/tests/static-analysis/assert-keyNotExists.php
@@ -32,7 +32,6 @@ function nullOrKeyNotExists(?array $array, $key): ?array
  * @psalm-pure
  *
  * @param iterable<array> $array
- *
  * @param array-key $key
  *
  * @return iterable<array>
diff --git a/tests/static-analysis/assert-notEmpty.php b/tests/static-analysis/assert-notEmpty.php
index 9bdc12fb..83a4ef57 100644
--- a/tests/static-analysis/assert-notEmpty.php
+++ b/tests/static-analysis/assert-notEmpty.php
@@ -50,7 +50,6 @@ function notEmptyArray(array $value)
     return $value;
 }
 
-
 /**
  * @psalm-pure
  *
diff --git a/tests/static-analysis/assert-notInstanceOf.php b/tests/static-analysis/assert-notInstanceOf.php
index d5a331b7..0236894f 100644
--- a/tests/static-analysis/assert-notInstanceOf.php
+++ b/tests/static-analysis/assert-notInstanceOf.php
@@ -2,8 +2,8 @@
 
 namespace Webmozart\Assert\Tests\StaticAnalysis;
 
-use stdClass;
 use DateTime;
+use stdClass;
 use Webmozart\Assert\Assert;
 
 /**