add getMany in Parameter

Author: Changwan Jun

src/Contracts/ParameterInterface.php

@@ -14,6 +14,12 @@ public function setFallback(ParameterInterface $fallback);
      */
     public function toArray();
 
+    /**
+     * @param array $keyOrDefaults
+     * @return array
+     */
+    public function getMany(array $keyOrDefaults = []);
+
     /**
      * @param string $key
      * @param mixed $default

src/Parameters/Parameter.php

@@ -45,6 +45,24 @@ public function toArray()
         return $arrayToReturn;
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getMany(array $keyOrDefaults = [])
+    {
+        $dataToReturn = [];
+        foreach ($keyOrDefaults as $key => $value) {
+            if (is_integer($key)) {
+                if ($this->has($value)) {
+                    $dataToReturn[$value] = $this->get($value);
+                }
+            } else {
+                $dataToReturn[$key] = $this->get($key, $value);
+            }
+        }
+        return $dataToReturn;
+    }
+
     /**
      * {@inheritdoc}
      */

tests/Contracts/ParameterInterfaceTestTrait.php

@@ -91,4 +91,48 @@ public function testHasWithFallback()
         $this->assertTrue($params->has('fallback'));
         $this->assertFalse($params->has('undefined'));
     }
-}
+
+
+    public function testGetMany()
+    {
+        $params = $this->param1;
+
+        $this->assertSame(
+            [
+                'string' => 'string!',
+                'number' => '10'
+            ],
+            $params->getMany(['string', 'number'])
+        );
+
+        $this->assertSame(
+            [
+                'string' => 'string!',
+            ],
+            $params->getMany(['string'])
+        );
+
+        $this->assertSame(
+            [
+                'string' => 'string!',
+            ],
+            $params->getMany(['string', 'unknown'])
+        );
+
+        $this->assertSame(
+            [
+                'string' => 'string!',
+                'unknown' => null,
+            ],
+            $params->getMany(['string', 'unknown' => null])
+        );
+
+        $this->assertSame(
+            [
+                'string' => 'string!',
+                'unknown' => false,
+            ],
+            $params->getMany(['string' => false, 'unknown' => false])
+        );
+    }
+}

tests/Parameters/ParameterTest.php

@@ -4,7 +4,6 @@
 use Mockery;
 use PHPUnit_Framework_TestCase;
 use Wandu\Http\Contracts\ParameterInterfaceTestTrait;
-use Wandu\Http\Support\CastProviderTrait;
 
 class ParameterTest extends PHPUnit_Framework_TestCase
 {
@@ -36,6 +35,5 @@ public function setUp()
             'string1' => 'string 1 fallback!',
             'fallback' => 'fallback!',
         ]));
-
     }
 }