bug #25489 [FrameworkBundle] remove esi/ssi renderers if inactive (dmaicher)

This PR was merged into the 2.7 branch.

Discussion
----------

[FrameworkBundle] remove esi/ssi renderers if inactive

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? |no
| Tests pass?   | yes
| Fixed tickets | #25246
| License       | MIT
| Doc PR        | -

As found out within #25246 the esi/ssi fragment renderer services were registered for < 3.4 even when the framework config for it was disabled.

On 3.4+ this has been fixed already and the service definitions are removed.

With this fix the usual exception message appears when `framework.esi` or `framework.ssi` are disabled and using `render_esi(...)` or `render_ssi(...)`:

```
An exception has been thrown during the rendering of a template ("The "esi" renderer does not exist.").
```

**Note: Some people may see this exception when updating to this patch but this just means they are using esi/ssi without enabling it.**

Commits
-------

e1c36525fd [FrameworkBundle] remove esi/ssi renderers if inactive

Author: fabpot

DependencyInjection/FrameworkExtension.php

@@ -213,6 +213,8 @@ private function registerFormConfiguration(array $config, ContainerBuilder $cont
     private function registerEsiConfiguration(array $config, ContainerBuilder $container, XmlFileLoader $loader)
     {
         if (!$this->isConfigEnabled($container, $config)) {
+            $container->removeDefinition('fragment.renderer.esi');
+
             return;
         }
 
@@ -222,6 +224,8 @@ private function registerEsiConfiguration(array $config, ContainerBuilder $conta
     private function registerSsiConfiguration(array $config, ContainerBuilder $container, XmlFileLoader $loader)
     {
         if (!$this->isConfigEnabled($container, $config)) {
+            $container->removeDefinition('fragment.renderer.ssi');
+
             return;
         }
 

Tests/DependencyInjection/FrameworkExtensionTest.php

@@ -96,13 +96,31 @@ public function testEsi()
         $container = $this->createContainerFromFile('full');
 
         $this->assertTrue($container->hasDefinition('esi'), '->registerEsiConfiguration() loads esi.xml');
+        $this->assertTrue($container->hasDefinition('fragment.renderer.esi'));
+    }
+
+    public function testEsiInactive()
+    {
+        $container = $this->createContainerFromFile('default_config');
+
+        $this->assertFalse($container->hasDefinition('fragment.renderer.esi'));
+        $this->assertFalse($container->hasDefinition('esi'));
     }
 
     public function testSsi()
     {
         $container = $this->createContainerFromFile('full');
 
         $this->assertTrue($container->hasDefinition('ssi'), '->registerSsiConfiguration() loads ssi.xml');
+        $this->assertTrue($container->hasDefinition('fragment.renderer.ssi'));
+    }
+
+    public function testSsiInactive()
+    {
+        $container = $this->createContainerFromFile('default_config');
+
+        $this->assertFalse($container->hasDefinition('fragment.renderer.ssi'));
+        $this->assertFalse($container->hasDefinition('ssi'));
     }
 
     public function testEnabledProfiler()