Configurable Trait

src/ConfigurableTrait.php

@@ -0,0 +1,38 @@
+<?php
+namespace Packaged\Config;
+
+use Packaged\Config\Provider\ConfigSection;
+
+trait ConfigurableTrait
+{
+  /**
+   * @var ConfigSectionInterface
+   */
+  protected $_configuration;
+
+  /**
+   * Configure the data connection
+   *
+   * @param ConfigSectionInterface $configuration
+   *
+   * @return static
+   */
+  public function configure(ConfigSectionInterface $configuration)
+  {
+    $this->_configuration = $configuration;
+  }
+
+  /**
+   * Retrieve the configuration
+   *
+   * @return ConfigSectionInterface
+   */
+  protected function _config()
+  {
+    if($this->_configuration === null)
+    {
+      $this->_configuration = new ConfigSection();
+    }
+    return $this->_configuration;
+  }
+}

tests/ConfigurableTraitTest.php

@@ -0,0 +1,33 @@
+<?php
+use Packaged\Config\Provider\ConfigSection;
+use Packaged\Config\ConfigurableTrait;
+
+class ConfigurableTraitTest extends \PHPUnit_Framework_TestCase
+{
+  public function testTrait()
+  {
+    $config = new ConfigSection('abstract', ['name' => 'test']);
+    $mock   = new MockConfigurableTrait();
+    $mock->configure($config);
+    $this->assertSame($config, $mock->config());
+  }
+
+  public function testDefaultConfig()
+  {
+    $mock = new MockConfigurableTrait();
+    $this->assertEmpty($mock->config()->getItems());
+  }
+}
+
+class MockConfigurableTrait
+{
+  use ConfigurableTrait;
+
+  /**
+   * @return \Packaged\Config\ConfigSectionInterface
+   */
+  public function config()
+  {
+    return $this->_config();
+  }
+}