Test PHP 7.4 on Travis

.travis.yml

@@ -4,6 +4,7 @@ php:
   - '7.1'
   - '7.2'
   - '7.3'
+  - '7.4'
 
 env:
   global:

tests/Functional/App/Helper/ConstraintPayloadDocHelper/AppendPayloadDocTest.php

@@ -19,7 +19,7 @@ class AppendPayloadDocTest extends TestCase
     /** @var ConstraintPayloadDocHelper */
     private $helper;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->helper = new ConstraintPayloadDocHelper();
     }

tests/Functional/App/Helper/ConstraintPayloadDocHelper/getTypeIfExistTest.php

@@ -16,7 +16,7 @@ class GetTypeIfExistTest extends TestCase
     /** @var ConstraintPayloadDocHelper */
     private $helper;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->helper = new ConstraintPayloadDocHelper();
     }

tests/Functional/App/Helper/DocTypeHelperTest.php

@@ -32,7 +32,7 @@ class DocTypeHelperTest extends TestCase
     /** @var DocTypeHelper */
     private $helper;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->constraintPayloadDocHelper = $this->prophesize(ConstraintPayloadDocHelper::class);
         $this->typeGuesser = $this->prophesize(TypeGuesser::class);

tests/Functional/App/Helper/MinMaxHelper/CollectionTest.php

@@ -17,7 +17,7 @@ class CollectionTest extends TestCase
     /** @var MinMaxHelper */
     private $helper;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->helper = new MinMaxHelper();
     }

tests/Functional/App/Helper/MinMaxHelper/NumberTest.php

@@ -17,7 +17,7 @@ class NumberTest extends TestCase
     /** @var MinMaxHelper */
     private $helper;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->helper = new MinMaxHelper();
     }

tests/Functional/App/Helper/MinMaxHelper/StringTest.php

@@ -17,7 +17,7 @@ class StringTest extends TestCase
     /** @var MinMaxHelper */
     private $helper;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->helper = new MinMaxHelper();
     }

tests/Functional/App/Helper/StringDocHelperTest.php

@@ -19,7 +19,7 @@ class StringDocHelperTest extends TestCase
     /** @var StringDocHelper */
     private $helper;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->helper = new StringDocHelper();
     }

tests/Functional/App/Helper/TypeGuesserTest.php

@@ -22,7 +22,7 @@ class TypeGuesserTest extends TestCase
     /** @var TypeGuesser */
     private $guesser;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->guesser = new TypeGuesser();
     }

tests/Functional/Infra/Transformer/ConstraintToParamsDocTransformerTest.php

@@ -36,7 +36,7 @@ class ConstraintToParamsDocTransformerTest extends TestCase
     /** @var ConstraintToParamsDocTransformer */
     private $transformer;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->docTypeHelper = $this->prophesize(DocTypeHelper::class);
         $this->stringDocHelper = $this->prophesize(StringDocHelper::class);

tests/Technical/App/Helper/DocTypeHelperTest.php

@@ -26,7 +26,7 @@ class DocTypeHelperTest extends TestCase
     /** @var DocTypeHelper */
     private $helper;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->constraintPayloadDocHelper = $this->prophesize(ConstraintPayloadDocHelper::class);
         $this->typeGuesser = $this->prophesize(TypeGuesser::class);

tests/Technical/App/Helper/TypeGuesserTest.php

@@ -15,7 +15,7 @@ class TypeGuesserTest extends TestCase
     /** @var TypeGuesser */
     private $guesser;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->guesser = new TypeGuesser();
     }