diff --git a/composer.json b/composer.json
index 38d0396..ec11059 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,8 @@
     },
     "autoload-dev": {
         "psr-4": {
-            "TorstenHettstedtUnitTests\\Colors\\" : "tests/unit"
+            "TorstenHettstedtUnitTests\\Colors\\" : "tests/unit",
+            "TorstenHettstedtTests\\Helper\\" : "tests/_support/Helper"
         }
     },
     "require": {
diff --git a/tests/unit/Transformer/ValidColorValuesProvider.php b/tests/_support/Helper/ValidColorValuesProvider.php
similarity index 99%
rename from tests/unit/Transformer/ValidColorValuesProvider.php
rename to tests/_support/Helper/ValidColorValuesProvider.php
index 769cb1a..ca33cc8 100644
--- a/tests/unit/Transformer/ValidColorValuesProvider.php
+++ b/tests/_support/Helper/ValidColorValuesProvider.php
@@ -1,7 +1,7 @@
 <?php
 
 
-namespace TorstenHettstedtUnitTests\Colors\Transformer;
+namespace TorstenHettstedtTests\Helper;
 
 
 class ValidColorValuesProvider
diff --git a/tests/unit/Transformer/CyanMagentaYellowKeyTransformerTest.php b/tests/unit/Transformer/CyanMagentaYellowKeyTransformerTest.php
index 1160718..011d265 100644
--- a/tests/unit/Transformer/CyanMagentaYellowKeyTransformerTest.php
+++ b/tests/unit/Transformer/CyanMagentaYellowKeyTransformerTest.php
@@ -6,6 +6,7 @@ use Codeception\Test\Unit;
 use Exception;
 use TorstenHettstedt\Colors\ColorModels\CyanMagentaYellowKey;
 use TorstenHettstedt\Colors\Transformer\CyanMagentaYellowKeyTransformer;
+use TorstenHettstedtTests\Helper\ValidColorValuesProvider;
 
 class CyanMagentaYellowKeyTransformerTest extends Unit
 {
diff --git a/tests/unit/Transformer/HueSaturationValueTransformerTest.php b/tests/unit/Transformer/HueSaturationValueTransformerTest.php
index 0c5a7b8..9694d21 100644
--- a/tests/unit/Transformer/HueSaturationValueTransformerTest.php
+++ b/tests/unit/Transformer/HueSaturationValueTransformerTest.php
@@ -6,6 +6,7 @@ use Codeception\Test\Unit;
 use Exception;
 use TorstenHettstedt\Colors\ColorModels\HueSaturationValue;
 use TorstenHettstedt\Colors\Transformer\HueSaturationValueTransformer;
+use TorstenHettstedtTests\Helper\ValidColorValuesProvider;
 
 class HueSaturationValueTransformerTest extends Unit
 {
diff --git a/tests/unit/Transformer/RedGreenBlueTransformerTest.php b/tests/unit/Transformer/RedGreenBlueTransformerTest.php
index 67e2adf..2862afc 100644
--- a/tests/unit/Transformer/RedGreenBlueTransformerTest.php
+++ b/tests/unit/Transformer/RedGreenBlueTransformerTest.php
@@ -6,6 +6,7 @@ use Codeception\Test\Unit;
 use Exception;
 use TorstenHettstedt\Colors\ColorModels\RedGreenBlue;
 use TorstenHettstedt\Colors\Transformer\RedGreenBlueTransformer;
+use TorstenHettstedtTests\Helper\ValidColorValuesProvider;
 
 class RedGreenBlueTransformerTest extends Unit
 {