Add camelCase filter - Close #15

Author: sandrokeil

src/FilterFactory.php

@@ -49,6 +49,11 @@ public static function snakeCaseFilter(): callable
         );
     }
 
+    public static function camelCaseFilter(): callable
+    {
+        return new LowerCaseFirst(self::normalizeFilter());
+    }
+
     /**
      * Returns a filter for valid class names e.g. AddBuilding
      *

tests/FilterFactoryTest.php

@@ -36,6 +36,17 @@ public function it_filters_snake_case(string $label): void
         $this->assertSame('add_building', ($filter)($label));
     }
 
+    /**
+     * @test
+     * @dataProvider providerForLabel
+     * @param string $label
+     */
+    public function it_filters_camel_case(string $label): void
+    {
+        $filter = FilterFactory::camelCaseFilter();
+        $this->assertSame('addBuilding', ($filter)($label));
+    }
+
     /**
      * @test
      * @dataProvider providerForLabel