diff --git a/.gitignore b/.gitignore
index 997ac01..6b443ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ phpunit.xml
 /tests/Functional/output/output-*
 sami.phar
 .idea/
+/phpunit
diff --git a/.travis.yml b/.travis.yml
index cf52955..0cdcf37 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,9 +16,14 @@ matrix:
   include:
     - php: 5.4
       env:
+        - PHPUNIT_VERSION=4
         - COMPOSER_FLAGS="--prefer-lowest"
     - php: 5.4
+      env:
+        - PHPUNIT_VERSION=4
     - php: 5.5
+      env:
+        - PHPUNIT_VERSION=4
     - php: 5.6
     - php: 7.0
     - php: 7.1
@@ -30,11 +35,26 @@ before_install:
   - sudo add-apt-repository ppa:mc3man/trusty-media -y
   - sudo apt-get update -q
   - composer self-update
-  - if [ "$COMPOSER_FLAGS" == "--prefer-lowest" ]; then composer require "roave/security-advisories" dev-master --no-update; fi;
+  - echo "$PHPUNIT_VERSION"
+  - |
+    if [ "$PHPUNIT_VERSION" ]; then
+      composer remove symfony/phpunit-bridge --dev
+      wget -O phpunit "https://phar.phpunit.de/phpunit-$PHPUNIT_VERSION.phar"
+      chmod +x phpunit
+    fi;
+  - |
+    if [ "$COMPOSER_FLAGS" == "--prefer-lowest" ]; then
+      composer require "roave/security-advisories" dev-master --no-update
+    fi;
 
 install:
   - sudo apt-get install -y ffmpeg
   - composer update --prefer-dist $COMPOSER_FLAGS
 
 script:
-  - vendor/bin/phpunit --verbose
+  - |
+    if [ "$PHPUNIT_VERSION" ]; then
+      ./phpunit --verbose
+    else
+      ./vendor/bin/simple-phpunit --verbose
+    fi;
diff --git a/composer.json b/composer.json
index ba61f03..fda1beb 100644
--- a/composer.json
+++ b/composer.json
@@ -44,7 +44,7 @@
     "require-dev": {
         "sami/sami": "~1.0",
         "silex/silex": "~1.0",
-        "phpunit/phpunit": "^4.8.36 || ^5.0 || ^6.0 || ^7.0"
+        "symfony/phpunit-bridge": "^5.0.4"
     },
     "autoload": {
         "psr-0": {
diff --git a/tests/BaseTestCase.php b/tests/BaseTestCase.php
index 0af9d1b..75f8877 100644
--- a/tests/BaseTestCase.php
+++ b/tests/BaseTestCase.php
@@ -4,57 +4,49 @@ namespace Tests\FFMpeg;
 
 use PHPUnit\Framework\TestCase;
 
-class BaseTestCase extends TestCase
-{
-    public function assertScalar($value, $message = '')
+/**
+ * This is a BC Layer to support phpunit 4.8 needed for php <= 5.5.
+ */
+if (class_exists('PHPUnit_Runner_Version')
+    && version_compare(\PHPUnit_Runner_Version::id(), '5', '<')) {
+    class BaseTestCase extends TestCase
     {
-        $this->assertTrue(is_scalar($value), $message);
-    }
-
-    /**
-     * Can be removed when phpunit 4.8 (<= needed for php 5.5) support is removed.
-     */
-    public function assertIsArray($value, $message = '')
-    {
-        $this->assertTrue(is_array($value), $message);
-    }
-
-    /**
-     * Can be removed when phpunit 4.8 (<= needed for php 5.5) support is removed.
-     */
-    public function assertIsInt($value, $message = '')
-    {
-        $this->assertTrue(is_int($value), $message);
-    }
-
-    /**
-     * Can be removed when phpunit 4.8 (<= needed for php 5.5) support is removed.
-     */
-    public function assertIsBool($value, $message = '')
-    {
-        $this->assertTrue(is_bool($value), $message);
-    }
-
-    /**
-     * Can be removed when phpunit 4.8 (<= needed for php 5.5) support is removed.
-     */
-    public function assertIsString($value, $message = '')
-    {
-        $this->assertTrue(is_string($value), $message);
-    }
-
-    /**
-     * Can be removed when phpunit 4.8 (<= needed for php 5.5) support is removed.
-     */
-    public function expectException($exception)
-    {
-        // PHPUnt BC Layer
-        if (method_exists(get_parent_class(), 'expectException')) {
-            parent::expectException($exception);
-
-            return;
+        public static function assertScalar($value, $message = '')
+        {
+            self::assertTrue(is_scalar($value), $message);
         }
 
-        $this->setExpectedException($exception);
+        public static function assertIsArray($value, $message = '')
+        {
+            self::assertTrue(is_array($value), $message);
+        }
+
+        public static function assertIsInt($value, $message = '')
+        {
+            self::assertTrue(is_int($value), $message);
+        }
+
+        public static function assertIsBool($value, $message = '')
+        {
+            self::assertTrue(is_bool($value), $message);
+        }
+
+        public static function assertIsString($value, $message = '')
+        {
+            self::assertTrue(is_string($value), $message);
+        }
+
+        public function expectException($exception, $message = null)
+        {
+            $this->setExpectedException($exception, $message);
+        }
+    }
+} else {
+    class BaseTestCase extends TestCase
+    {
+        public function assertScalar($value, $message = '')
+        {
+            $this->assertTrue(is_scalar($value), $message);
+        }
     }
 }
diff --git a/tests/Unit/Coordinate/TimeCodeTest.php b/tests/Unit/Coordinate/TimeCodeTest.php
index 4101774..a91b366 100644
--- a/tests/Unit/Coordinate/TimeCodeTest.php
+++ b/tests/Unit/Coordinate/TimeCodeTest.php
@@ -28,8 +28,6 @@ class TimeCodeTest extends TestCase
         );
     }
 
-    /**
-     */
     public function testFromInvalidString()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
diff --git a/tests/Unit/Driver/FFMpegDriverTest.php b/tests/Unit/Driver/FFMpegDriverTest.php
index b04d185..ec4acbd 100644
--- a/tests/Unit/Driver/FFMpegDriverTest.php
+++ b/tests/Unit/Driver/FFMpegDriverTest.php
@@ -41,8 +41,6 @@ class FFMpegDriverTest extends TestCase
         $this->assertEquals($conf, $ffmpeg->getConfiguration());
     }
 
-    /**
-     */
     public function testCreateFailureThrowsAnException()
     {
         $this->expectException('\FFMpeg\Exception\ExecutableNotFoundException');
diff --git a/tests/Unit/Driver/FFProbeDriverTest.php b/tests/Unit/Driver/FFProbeDriverTest.php
index 8de13f3..d42074e 100644
--- a/tests/Unit/Driver/FFProbeDriverTest.php
+++ b/tests/Unit/Driver/FFProbeDriverTest.php
@@ -41,8 +41,6 @@ class FFProbeDriverTest extends TestCase
         $this->assertEquals($conf, $ffprobe->getConfiguration());
     }
 
-    /**
-     */
     public function testCreateFailureThrowsAnException()
     {
         $this->expectException('\FFMpeg\Exception\ExecutableNotFoundException');
diff --git a/tests/Unit/FFMpegTest.php b/tests/Unit/FFMpegTest.php
index d1a92a1..08043d6 100644
--- a/tests/Unit/FFMpegTest.php
+++ b/tests/Unit/FFMpegTest.php
@@ -8,12 +8,12 @@ use FFMpeg\FFProbe\DataMapping\Stream;
 
 class FFMpegTest extends TestCase
 {
-    /**
-     * @expectedExceptionMessage Unable to probe "/path/to/unknown/file".
-     */
     public function testOpenInvalid()
     {
-        $this->expectException('\FFMpeg\Exception\RuntimeException');
+        $this->expectException(
+            '\FFMpeg\Exception\RuntimeException',
+            'Unable to probe "/path/to/unknown/file"'
+        );
         $ffmpeg = new FFMpeg($this->getFFMpegDriverMock(), $this->getFFProbeMock());
         $ffmpeg->open('/path/to/unknown/file');
     }
@@ -57,8 +57,6 @@ class FFMpegTest extends TestCase
         $this->assertInstanceOf('FFMpeg\Media\Video', $ffmpeg->open(__FILE__));
     }
 
-    /**
-     */
     public function testOpenUnknown()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
diff --git a/tests/Unit/FFProbe/DataMapping/StreamTest.php b/tests/Unit/FFProbe/DataMapping/StreamTest.php
index 0c1ec62..0eaee6a 100644
--- a/tests/Unit/FFProbe/DataMapping/StreamTest.php
+++ b/tests/Unit/FFProbe/DataMapping/StreamTest.php
@@ -42,12 +42,12 @@ class StreamTest extends TestCase
         );
     }
 
-    /**
-     * @expectedExceptionMessage Dimensions can only be retrieved from video streams.
-     */
     public function testGetDimensionsFromAudio()
     {
-        $this->expectException('\FFMpeg\Exception\LogicException');
+        $this->expectException(
+            '\FFMpeg\Exception\LogicException',
+            'Dimensions can only be retrieved from video streams.'
+        );
         $stream = new Stream(array('codec_type' => 'audio'));
         $stream->getDimensions();
     }
@@ -60,11 +60,13 @@ class StreamTest extends TestCase
 
     /**
      * @dataProvider provideInvalidPropertiesForDimensionsExtraction
-     * @expectedExceptionMessage Unable to extract dimensions.
      */
     public function testUnableToGetDimensionsFromVideo($properties)
     {
-        $this->expectException('\FFMpeg\Exception\RuntimeException');
+        $this->expectException(
+            '\FFMpeg\Exception\RuntimeException',
+            'Unable to extract dimensions.'
+        );
         $stream = new Stream(array('codec_type' => 'video', 'width' => 960));
         $stream->getDimensions();
     }
diff --git a/tests/Unit/FFProbe/MapperTest.php b/tests/Unit/FFProbe/MapperTest.php
index e765f39..2ed5360 100644
--- a/tests/Unit/FFProbe/MapperTest.php
+++ b/tests/Unit/FFProbe/MapperTest.php
@@ -20,8 +20,6 @@ class MapperTest extends TestCase
         $this->assertEquals($expected, $mapper->map($type, $data));
     }
 
-    /**
-     */
     public function testMapInvalidArgument()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
diff --git a/tests/Unit/FFProbe/OptionsTesterTest.php b/tests/Unit/FFProbe/OptionsTesterTest.php
index ee8df5d..4436928 100644
--- a/tests/Unit/FFProbe/OptionsTesterTest.php
+++ b/tests/Unit/FFProbe/OptionsTesterTest.php
@@ -2,26 +2,28 @@
 
 namespace Tests\FFMpeg\Unit\FFProbe;
 
-use Alchemy\BinaryDriver\Exception\ExecutionFailureException;
-use FFMpeg\Exception\RuntimeException;
 use Tests\FFMpeg\Unit\TestCase;
 use FFMpeg\FFProbe\OptionsTester;
 
 class OptionsTesterTest extends TestCase
 {
-    /**
-     * @expectedExceptionMessage Your FFProbe version is too old and does not support `-help` option, please upgrade.
-     */
     public function testHasOptionWithOldFFProbe()
     {
-        $this->expectException('\FFMpeg\Exception\RuntimeException');
+        $this->expectException(
+            '\FFMpeg\Exception\RuntimeException',
+            'Your FFProbe version is too old and does not support `-help` option, please upgrade.'
+        );
         $cache = $this->getCacheMock();
 
+        $executionFailerExceptionMock = $this->getMockBuilder('Alchemy\BinaryDriver\Exception\ExecutionFailureException')
+            ->disableOriginalConstructor()
+            ->getMock();
+
         $ffprobe = $this->getFFProbeDriverMock();
         $ffprobe->expects($this->once())
             ->method('command')
             ->with(array('-help', '-loglevel', 'quiet'))
-            ->will($this->throwException(new RuntimeException('Failed to execute')));
+            ->will($this->throwException($executionFailerExceptionMock));
 
         $tester = new OptionsTester($ffprobe, $cache);
         $tester->has('-print_format');
diff --git a/tests/Unit/FFProbe/OutputParserTest.php b/tests/Unit/FFProbe/OutputParserTest.php
index aa5c36d..91b7160 100644
--- a/tests/Unit/FFProbe/OutputParserTest.php
+++ b/tests/Unit/FFProbe/OutputParserTest.php
@@ -17,8 +17,6 @@ class OutputParserTest extends TestCase
         $this->assertEquals($expectedOutput, $parser->parse($type, $data));
     }
 
-    /**
-     */
     public function testParseWithInvalidArgument()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
diff --git a/tests/Unit/Filters/Video/ExtractMultipleFramesFilterTest.php b/tests/Unit/Filters/Video/ExtractMultipleFramesFilterTest.php
index 3a1873d..23981c2 100644
--- a/tests/Unit/Filters/Video/ExtractMultipleFramesFilterTest.php
+++ b/tests/Unit/Filters/Video/ExtractMultipleFramesFilterTest.php
@@ -64,8 +64,6 @@ class ExtractMultipleFramesFilterTest extends TestCase
         );
     }
 
-    /**
-     */
     public function testInvalidFrameFileType() {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
         $filter = new ExtractMultipleFramesFilter('1/1', '/');
diff --git a/tests/Unit/Filters/Video/RotateFilterTest.php b/tests/Unit/Filters/Video/RotateFilterTest.php
index 78bba60..7aa956a 100644
--- a/tests/Unit/Filters/Video/RotateFilterTest.php
+++ b/tests/Unit/Filters/Video/RotateFilterTest.php
@@ -61,12 +61,12 @@ class RotateFilterTest extends TestCase
         );
     }
 
-    /**
-     * @expectedExceptionMessage Invalid angle value.
-     */
     public function testApplyInvalidAngle()
     {
-        $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
+        $this->expectException(
+            '\FFMpeg\Exception\InvalidArgumentException',
+            'Invalid angle value.'
+        );
         new RotateFilter('90');
     }
 }
diff --git a/tests/Unit/Format/Audio/AudioTestCase.php b/tests/Unit/Format/Audio/AudioTestCase.php
index ce1fbc7..79d02e3 100644
--- a/tests/Unit/Format/Audio/AudioTestCase.php
+++ b/tests/Unit/Format/Audio/AudioTestCase.php
@@ -34,8 +34,6 @@ abstract class AudioTestCase extends TestCase
         }
     }
 
-    /**
-     */
     public function testSetInvalidAudioCodec()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
@@ -59,16 +57,12 @@ abstract class AudioTestCase extends TestCase
         $this->assertEquals(256, $format->getAudioKiloBitrate());
     }
 
-    /**
-     */
     public function testSetInvalidKiloBitrate()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
         $this->getFormat()->setAudioKiloBitrate(0);
     }
 
-    /**
-     */
     public function testSetNegativeKiloBitrate()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
@@ -87,16 +81,12 @@ abstract class AudioTestCase extends TestCase
         $this->assertEquals(2, $format->getAudioChannels());
     }
 
-    /**
-     */
     public function testSetInvalidChannels()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
         $this->getFormat()->setAudioChannels(0);
     }
 
-    /**
-     */
     public function testSetNegativeChannels()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');
diff --git a/tests/Unit/Format/Video/VideoTestCase.php b/tests/Unit/Format/Video/VideoTestCase.php
index d4eca24..0df42ee 100644
--- a/tests/Unit/Format/Video/VideoTestCase.php
+++ b/tests/Unit/Format/Video/VideoTestCase.php
@@ -39,8 +39,6 @@ abstract class VideoTestCase extends AudioTestCase
         $this->assertEquals(2560, $format->getKiloBitrate());
     }
 
-    /**
-     */
     public function testSetInvalidVideoCodec()
     {
         $this->expectException('\FFMpeg\Exception\InvalidArgumentException');