Ensure that lazy-instantiated plugin manager gets parent service locator

Adds code to the `getPluginManager()` implementation to ensure that if a
service locator is composed, it is used to inject a lazy-instantiated
navigation plugin manager. This should fix the last lingering issues as
reported in #49.

.travis.yml

@@ -53,7 +53,7 @@ before_install:
   - if [[ $ZEND_EVENTMANAGER_VERSION == '' ]]; then composer require --no-update "zendframework/zend-eventmanager:^3.0" ; fi
   - if [[ $ZEND_SERVICEMANAGER_VERSION != '' ]]; then composer require --dev --no-update "zendframework/zend-servicemanager:$ZEND_SERVICEMANAGER_VERSION" ; fi
   - if [[ $ZEND_SERVICEMANAGER_VERSION == '' ]]; then composer require --dev --no-update "zendframework/zend-servicemanager:^3.0.3" ; fi
-  - if [[ $ZEND_SERVICEMANAGER_VERSION == '' ]]; then composer remove --dev --no-update zendframework/zend-mvc zendframework/zend-session ; fi
+  - if [[ $ZEND_SERVICEMANAGER_VERSION == '' ]]; then composer remove --dev --no-update zendframework/zend-modulemanager zendframework/zend-mvc zendframework/zend-session ; fi
 
 install:
   - travis_retry composer install --no-interaction --ignore-platform-reqs

composer.json

@@ -30,6 +30,7 @@
         "zendframework/zend-i18n": "^2.6",
         "zendframework/zend-json": "^2.6.1",
         "zendframework/zend-log": "^2.7",
+        "zendframework/zend-modulemanager": "^2.5",
         "zendframework/zend-mvc": "^2.6.1",
         "zendframework/zend-navigation": "^2.5",
         "zendframework/zend-paginator": "^2.5",

src/Helper/Navigation.php

@@ -322,7 +322,7 @@ public function setPluginManager(Navigation\PluginManager $plugins)
     public function getPluginManager()
     {
         if (null === $this->plugins) {
-            $this->setPluginManager(new Navigation\PluginManager());
+            $this->setPluginManager(new Navigation\PluginManager($this->getServiceLocator()));
         }
 
         return $this->plugins;

test/Helper/Navigation/AbstractTest.php

@@ -86,7 +86,7 @@ abstract class AbstractTest extends \PHPUnit_Framework_TestCase
      */
     protected function setUp()
     {
-        if (! class_exists(PluginFlashMessenger::class)) {
+        if (! class_exists(ServiceManagerConfig::class)) {
             $this->markTestSkipped(
                 'Skipping zend-mvc-related tests until that component is updated '
                 . 'to be forwards-compatible with zend-eventmanager, zend-stdlib, '
@@ -139,7 +139,10 @@ protected function setUp()
             ],
         ];
 
-        $sm = $this->serviceManager = new ServiceManager(new ServiceManagerConfig);
+        $sm = $this->serviceManager = new ServiceManager();
+        $sm->setAllowOverride(true);
+
+        (new ServiceManagerConfig())->configureServiceManager($sm);
         $sm->setService('ApplicationConfig', $smConfig);
         $sm->get('ModuleManager')->loadModules();
         $sm->get('Application')->bootstrap();
@@ -148,6 +151,8 @@ protected function setUp()
         $sm->setService('nav1', $this->_nav1);
         $sm->setService('nav2', $this->_nav2);
 
+        $sm->setAllowOverride(false);
+
         $app = $this->serviceManager->get('Application');
         $app->getMvcEvent()->setRouteMatch(new RouteMatch([
             'controller' => 'post',

test/Helper/Navigation/NavigationTest.php

@@ -9,7 +9,9 @@
 
 namespace ZendTest\View\Helper\Navigation;
 
+use Interop\Container\ContainerInterface;
 use Zend\Navigation\Navigation as Container;
+use Zend\Navigation\Page;
 use Zend\Permissions\Acl;
 use Zend\Permissions\Acl\Role;
 use Zend\ServiceManager\ServiceManager;
@@ -61,11 +63,10 @@ public function testAcceptAclShouldReturnGracefullyWithUnknownResource()
         $this->_helper->setRole($acl['role']);
 
         $accepted = $this->_helper->accept(
-            new \Zend\Navigation\Page\Uri([
+            new Page\Uri([
                 'resource'  => 'unknownresource',
                 'privilege' => 'someprivilege'
-            ],
-            false)
+            ], false)
         );
 
         $this->assertEquals($accepted, false);
@@ -144,10 +145,9 @@ public function testServiceManagerIsUsedToRetrieveContainer()
         $serviceManager = new ServiceManager;
         $serviceManager->setService('navigation', $container);
 
-        $pluginManager  = new View\HelperPluginManager;
-        $pluginManager->setServiceLocator($serviceManager);
+        $pluginManager  = new View\HelperPluginManager($serviceManager);
 
-        $this->_helper->setServiceLocator($pluginManager);
+        $this->_helper->setServiceLocator($serviceManager);
         $this->_helper->setContainer('navigation');
 
         $expected = $this->_helper->getContainer();
@@ -558,7 +558,7 @@ public function testMultipleNavigationsWithSameHelperAndSameContainer()
 
     public function testSetPluginManagerAndView()
     {
-        $pluginManager = new \Zend\View\Helper\Navigation\PluginManager();
+        $pluginManager = new Navigation\PluginManager();
         $view = new PhpRenderer();
 
         $helper = new $this->_helperName;
@@ -568,6 +568,27 @@ public function testSetPluginManagerAndView()
         $this->assertEquals($view, $pluginManager->getRenderer());
     }
 
+    /**
+     * @group 49
+     */
+    public function testInjectsLazyInstantiatedPluginManagerWithCurrentServiceLocator()
+    {
+        $services = $this->prophesize(ContainerInterface::class)->reveal();
+        $helper = new $this->_helperName;
+        $helper->setServiceLocator($services);
+
+        $plugins = $helper->getPluginManager();
+        $this->assertInstanceOf(Navigation\PluginManager::class, $plugins);
+
+        if (method_exists($plugins, 'configure')) {
+            // v3
+            $this->assertAttributeSame($services, 'creationContext', $plugins);
+        } else {
+            // v2
+            $this->assertSame($services, $plugins->getServiceLocator());
+        }
+    }
+
     /**
      * Returns the contens of the expected $file, normalizes newlines
      * @param  string $file