Improved Rest's ConfigProvider test to kill more mutants

module/Rest/src/ConfigProvider.php

@@ -4,19 +4,26 @@ declare(strict_types=1);
 
 namespace Shlinkio\Shlink\Rest;
 
-use Zend\Config\Factory;
+use function Shlinkio\Shlink\Common\loadConfigFromGlob;
-use Zend\Stdlib\Glob;
-
 use function sprintf;
 
 class ConfigProvider
 {
     private const ROUTES_PREFIX = '/rest/v{version:1|2}';
 
+    /** @var callable */
+    private $loadConfig;
+
+    public function __construct(?callable $loadConfig = null)
+    {
+        $this->loadConfig = $loadConfig ?? function (string $glob) {
+            return loadConfigFromGlob($glob);
+        };
+    }
+
     public function __invoke()
     {
-        /** @var array $config */
+        $config = ($this->loadConfig)(__DIR__ . '/../config/{,*.}config.php');
-        $config = Factory::fromFiles(Glob::glob(__DIR__ . '/../config/{,*.}config.php', Glob::GLOB_BRACE));
         return $this->applyRoutesPrefix($config);
     }
 

module/Rest/test/ConfigProviderTest.php

@@ -20,9 +20,31 @@ class ConfigProviderTest extends TestCase
     /** @test */
     public function properConfigIsReturned(): void
     {
-        $config = $this->configProvider->__invoke();
+        $config = ($this->configProvider)();
 
         $this->assertArrayHasKey('routes', $config);
         $this->assertArrayHasKey('dependencies', $config);
     }
+
+    /** @test */
+    public function routesAreProperlyPrefixed(): void
+    {
+        $configProvider = new ConfigProvider(function () {
+            return [
+                'routes' => [
+                    ['path' => '/foo'],
+                    ['path' => '/bar'],
+                    ['path' => '/baz/foo'],
+                ],
+            ];
+        });
+
+        $config = $configProvider();
+
+        $this->assertEquals([
+            ['path' => '/rest/v{version:1|2}/foo'],
+            ['path' => '/rest/v{version:1|2}/bar'],
+            ['path' => '/rest/v{version:1|2}/baz/foo'],
+        ], $config['routes']);
+    }
 }