diff --git a/module/Rest/test/Action/HealthActionFactoryTest.php b/module/Rest/test/Action/HealthActionFactoryTest.php
new file mode 100644
index 00000000..e5130d62
--- /dev/null
+++ b/module/Rest/test/Action/HealthActionFactoryTest.php
@@ -0,0 +1,45 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\Rest\Action;
+
+use Doctrine\DBAL\Connection;
+use Doctrine\ORM\EntityManager;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\LoggerInterface;
+use Shlinkio\Shlink\Core\Options\AppOptions;
+use Shlinkio\Shlink\Rest\Action;
+use Zend\ServiceManager\ServiceManager;
+
+class HealthActionFactoryTest extends TestCase
+{
+    /** @var Action\HealthActionFactory */
+    private $factory;
+
+    public function setUp()
+    {
+        $this->factory = new Action\HealthActionFactory();
+    }
+
+    /**
+     * @test
+     */
+    public function serviceIsCreatedExtractingConnectionFromEntityManager()
+    {
+        $em = $this->prophesize(EntityManager::class);
+        $conn = $this->prophesize(Connection::class);
+
+        $getConnection = $em->getConnection()->willReturn($conn->reveal());
+
+        $sm = new ServiceManager(['services' => [
+            'Logger_Shlink' => $this->prophesize(LoggerInterface::class)->reveal(),
+            AppOptions::class => $this->prophesize(AppOptions::class)->reveal(),
+            EntityManager::class => $em->reveal(),
+        ]]);
+
+        $instance = ($this->factory)($sm, '');
+
+        $this->assertInstanceOf(Action\HealthAction::class, $instance);
+        $getConnection->shouldHaveBeenCalledOnce();
+    }
+}
diff --git a/module/Rest/test/Action/HealthActionTest.php b/module/Rest/test/Action/HealthActionTest.php
new file mode 100644
index 00000000..93371876
--- /dev/null
+++ b/module/Rest/test/Action/HealthActionTest.php
@@ -0,0 +1,70 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\Rest\Action;
+
+use Doctrine\DBAL\Connection;
+use PHPUnit\Framework\TestCase;
+use Prophecy\Prophecy\ObjectProphecy;
+use Shlinkio\Shlink\Core\Options\AppOptions;
+use Shlinkio\Shlink\Rest\Action\HealthAction;
+use Zend\Diactoros\Response\JsonResponse;
+use Zend\Diactoros\ServerRequest;
+
+class HealthActionTest extends TestCase
+{
+    /** @var HealthAction */
+    private $action;
+    /** @var ObjectProphecy */
+    private $conn;
+
+    public function setUp()
+    {
+        $this->conn = $this->prophesize(Connection::class);
+        $this->action = new HealthAction($this->conn->reveal(), new AppOptions(['version' => '1.2.3']));
+    }
+
+    /**
+     * @test
+     */
+    public function passResponseIsReturnedWhenConnectionSucceeds()
+    {
+        $ping = $this->conn->ping()->willReturn(true);
+
+        /** @var JsonResponse $resp */
+        $resp = $this->action->handle(new ServerRequest());
+        $payload = $resp->getPayload();
+
+        $this->assertEquals(200, $resp->getStatusCode());
+        $this->assertEquals('pass', $payload['status']);
+        $this->assertEquals('1.2.3', $payload['version']);
+        $this->assertEquals([
+            'about' => 'https://shlink.io',
+            'project' => 'https://github.com/shlinkio/shlink',
+        ], $payload['links']);
+        $this->assertEquals('application/health+json', $resp->getHeaderLine('Content-type'));
+        $ping->shouldHaveBeenCalledOnce();
+    }
+
+    /**
+     * @test
+     */
+    public function failResponseIsReturnedWhenConnectionFails()
+    {
+        $ping = $this->conn->ping()->willReturn(false);
+
+        /** @var JsonResponse $resp */
+        $resp = $this->action->handle(new ServerRequest());
+        $payload = $resp->getPayload();
+
+        $this->assertEquals(503, $resp->getStatusCode());
+        $this->assertEquals('fail', $payload['status']);
+        $this->assertEquals('1.2.3', $payload['version']);
+        $this->assertEquals([
+            'about' => 'https://shlink.io',
+            'project' => 'https://github.com/shlinkio/shlink',
+        ], $payload['links']);
+        $this->assertEquals('application/health+json', $resp->getHeaderLine('Content-type'));
+        $ping->shouldHaveBeenCalledOnce();
+    }
+}