fix(live): fix testing events

symfony · Sep 13, 2023 · bf02e80 · bf02e80
1 parent 69e3531
commit bf02e80
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Showing 3 changed files with 51 additions and 1 deletion.
diff --git a/src/LiveComponent/src/Test/TestLiveComponent.php b/src/LiveComponent/src/Test/TestLiveComponent.php
@@ -14,6 +14,7 @@
 use Symfony\Bundle\FrameworkBundle\KernelBrowser;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
 use Symfony\UX\LiveComponent\LiveComponentHydrator;
 use Symfony\UX\LiveComponent\Metadata\LiveComponentMetadataFactory;
 use Symfony\UX\TwigComponent\ComponentFactory;
@@ -89,7 +90,20 @@ public function call(string $action, array $arguments = []): self
      */
     public function emit(string $event, array $arguments = []): self
     {
-        return $this->call($event, $arguments);
+        $listeners = AsLiveComponent::liveListeners($this->component());
+        $actions = [];
+
+        foreach ($listeners as $listener) {
+            if ($listener['event'] === $event) {
+                $actions[] = ['name' => $listener['action'], 'args' => $arguments];
+            }
+        }
+
+        if (!$actions) {
+            throw new \InvalidArgumentException(sprintf('Event "%s" does not exist on component "%s".', $event, $this->metadata->getName()));
+        }
+
+        return $this->request(['actions' => $actions], '_batch');
     }
 
     public function set(string $prop, mixed $value): self

diff --git a/src/LiveComponent/tests/Fixtures/Component/Component2.php b/src/LiveComponent/tests/Fixtures/Component/Component2.php
@@ -14,6 +14,8 @@
 use Symfony\Component\HttpFoundation\RedirectResponse;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+use Symfony\UX\LiveComponent\Attribute\LiveArg;
+use Symfony\UX\LiveComponent\Attribute\LiveListener;
 use Symfony\UX\LiveComponent\Attribute\PreReRender;
 use Symfony\UX\LiveComponent\Attribute\LiveAction;
 use Symfony\UX\LiveComponent\Attribute\LiveProp;
@@ -51,6 +53,18 @@ public function redirect(UrlGeneratorInterface $urlGenerator): RedirectResponse
         return new RedirectResponse($urlGenerator->generate('homepage'), 302, ['X-Custom-Header' => '1']);
     }
 
+    #[LiveListener('triggerIncrease')]
+    public function increaseEvent1(#[LiveArg] int $amount = 1): void
+    {
+        $this->count += $amount;
+    }
+
+    #[LiveListener('triggerIncrease')]
+    public function increaseEvent2(#[LiveArg] int $amount = 1): void
+    {
+        $this->count += $amount;
+    }
+
     #[PreDehydrate]
     public function preDehydrateMethod(): void
     {

diff --git a/src/LiveComponent/tests/Functional/Test/InteractsWithLiveComponentsTest.php b/src/LiveComponent/tests/Functional/Test/InteractsWithLiveComponentsTest.php
@@ -63,6 +63,28 @@ public function testCanCallLiveActionWithArguments(): void
         $this->assertSame(33.3, $testComponent->component()->arg3);
     }
 
+    public function testCanEmitEvent(): void
+    {
+        $testComponent = $this->createLiveComponent('component2');
+
+        $this->assertStringContainsString('Count: 1', $testComponent->render());
+        $this->assertSame(1, $testComponent->component()->count);
+
+        $testComponent->emit('triggerIncrease', ['amount' => 2]);
+
+        $this->assertStringContainsString('Count: 5', $testComponent->render());
+        $this->assertSame(5, $testComponent->component()->count);
+    }
+
+    public function testInvalidEventName(): void
+    {
+        $testComponent = $this->createLiveComponent('component2');
+
+        $this->expectException(\InvalidArgumentException::class);
+
+        $testComponent->emit('invalid');
+    }
+
     public function testCanSetLiveProp(): void
     {
         $testComponent = $this->createLiveComponent('component_with_writable_props');