Added test to confirm this fix

tests/ZfcRbacTest/Asset/DummyGuard.php

@@ -0,0 +1,35 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license.
+ */
+
+namespace ZfcRbacTest\Asset;
+
+use Zend\Mvc\MvcEvent;
+use ZfcRbac\Guard\AbstractGuard;
+
+class DummyGuard extends AbstractGuard
+{
+    /**
+     * @param  MvcEvent $event
+     *
+     * @return bool
+     */
+    public function isGranted(MvcEvent $event)
+    {
+        return false;
+    }
+}

tests/ZfcRbacTest/Guard/AbstractGuardTest.php

@@ -0,0 +1,63 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license.
+ */
+
+namespace ZfcRbacTest\Guard;
+
+use Zend\EventManager\EventManager;
+use Zend\Mvc\Application;
+use Zend\Mvc\MvcEvent;
+use ZfcRbacTest\Asset\DummyGuard;
+
+/**
+ * @covers \ZfcRbac\Guard\AbstractGuard
+ * @covers \ZfcRbac\Guard\ControllerGuard
+ */
+class AbstractGuardTest extends \PHPUnit_Framework_TestCase
+{
+    public function testDoesNotLimitDispatchErrorEventToOnlyOneListener()
+    {
+        $eventManager = new EventManager();
+        $application = $this->prophesize(Application::class);
+        $application->getEventManager()->willReturn($eventManager);
+
+        $event = new MvcEvent();
+        $event->setApplication($application->reveal());
+
+        $guard = new DummyGuard();
+        $guard->attach($eventManager);
+
+        $eventManager->attach(MvcEvent::EVENT_DISPATCH_ERROR, function (MvcEvent $event) {
+            $event->setParam('first-listener', true);
+        });
+        $eventManager->attach(MvcEvent::EVENT_DISPATCH_ERROR, function (MvcEvent $event) {
+            $event->setParam('second-listener', true);
+        });
+
+        // attach listener with lower priority than DummyGuard
+        $eventManager->attach(MvcEvent::EVENT_ROUTE, function (MvcEvent $event) {
+            $this->fail('should not be called, because guard should stop propagation');
+        }, DummyGuard::EVENT_PRIORITY - 1);
+
+        $event->setName(MvcEvent::EVENT_ROUTE);
+        $eventManager->triggerEvent($event);
+
+        $this->assertTrue($event->getParam('first-listener'));
+        $this->assertTrue($event->getParam('second-listener'));
+        $this->assertTrue($event->propagationIsStopped());
+    }
+}