Add phpunit.xml

phpunit.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit
+    bootstrap="vendor/autoload.php"
+    colors="true"
+    verbose="true"
+>
+    <testsuites>
+        <testsuite>
+            <directory suffix="Test.php">tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

src/DeclarerInterface.php

@@ -6,5 +6,5 @@ interface DeclarerInterface {
     /**
      * @return string[]
     **/
-    public function declareDependencies(): array;
+    public function declareDependencies();
 }

tests/HelloWorldService.php

@@ -1,8 +1,11 @@
 <?php
 namespace tests;
 
-class HelloWorldService implements SD\DependencyInjection\DeclarerInterface {
-    use SD\DependencyInjection\ContainerAwareTrait;
+use SD\DependencyInjection\DeclarerInterface;
+use SD\DependencyInjection\ContainerAwareTrait;
+
+class HelloWorldService implements DeclarerInterface {
+    use ContainerAwareTrait;
 
     private $name;