Add link node factory methods

src/Node/Factory/NodeFactory.php

@@ -11,9 +11,11 @@ namespace Vfs\Node\Factory;
 
 use LogicException;
 use Vfs\Node\Directory;
+use Vfs\Node\DirectoryLink;
 use Vfs\Node\File;
+use Vfs\Node\FileLink;
+use Vfs\Node\FileInterface;
 use Vfs\Node\NodeContainerInterface;
-use Vfs\Node\NodeInterface;
 
 class NodeFactory implements NodeFactoryInterface
 {
@@ -22,14 +24,19 @@ class NodeFactory implements NodeFactoryInterface
         return new Directory($children);
     }
 
+    public function buildDirectoryLink(NodeContainerInterface $target)
+    {
+        return new DirectoryLink($target);
+    }
+
     public function buildFile($content = '')
     {
         return new File($content);
     }
 
-    public function buildLink($content = '')
+    public function buildFileLink(FileInterface $target)
     {
-        throw new LogicException('Symlinks aren\'t supported yet.');
+        return new FileLink($target);
     }
 
     public function buildTree(array $tree)

src/Node/Factory/NodeFactoryInterface.php

@@ -9,6 +9,8 @@
  */
 namespace Vfs\Node\Factory;
 
+use Vfs\Node\FileInterface;
+use Vfs\Node\LinkInterface;
 use Vfs\Node\NodeContainerInterface;
 use Vfs\Node\NodeInterface;
 
@@ -20,6 +22,12 @@ interface NodeFactoryInterface
      */
     public function buildDirectory(array $children = []);
 
+   /**
+    * @param  NodeContainerInterface $target
+    * @return LinkInterface
+    */
+   public function buildDirectoryLink(NodeContainerInterface $target);
+
     /**
      * @param  string        $content
      * @return NodeInterface
@@ -27,10 +35,10 @@ interface NodeFactoryInterface
     public function buildFile($content = '');
 
     /**
-     * @param  string        $content
-     * @return NodeInterface
+     * @param  FileInterface $file
+     * @return LinkInterface
      */
-    public function buildLink($content = '');
+    public function buildFileLink(FileInterface $target);
 
     /**
      * @param  array                  $tree

test/unit/Node/Factory/NodeFactoryTest.php

@@ -2,6 +2,8 @@
 namespace Vfs\Node\Factory;
 
 use Mockery;
+use Vfs\Node\Directory;
+use Vfs\Node\File;
 use Vfs\Test\UnitTestCase;
 
 class NodeFactoryTest extends UnitTestCase
@@ -24,6 +26,15 @@ class NodeFactoryTest extends UnitTestCase
         $this->assertEquals('foo', $file->getContent());
     }
 
+    public function testBuildFileLink()
+    {
+        $file = new File();
+        $link = $this->factory->buildFileLink($file);
+
+        $this->assertInstanceOf('Vfs\Node\FileInterface', $link);
+        $this->assertInstanceOf('Vfs\Node\LinkInterface', $link);
+    }
+
     public function testBuildDirectory()
     {
         $node = Mockery::mock('Vfs\Node\NodeInterface');
@@ -33,6 +44,15 @@ class NodeFactoryTest extends UnitTestCase
         $this->assertSame($node, $dir->get('foo'));
     }
 
+    public function testBuildDirectoryLink()
+    {
+        $dir = new Directory();
+        $link = $this->factory->buildDirectoryLink($dir);
+
+        $this->assertInstanceOf('Vfs\Node\NodeContainerInterface', $link);
+        $this->assertInstanceOf('Vfs\Node\LinkInterface', $link);
+    }
+
     public function testBuildTree()
     {
         $root = $this->factory->buildTree([