statamic
diff --git a/‎tests/StaticCaching/WriterTest.php‎
Lines changed: 48 additions & 0 deletions b/‎tests/StaticCaching/WriterTest.php‎
Lines changed: 48 additions & 0 deletions
@@ -0,0 +1,48 @@
+<?php
+
+namespace Tests\StaticCaching;
+
+use PHPUnit\Framework\Attributes\Test;
+use Statamic\StaticCaching\Cachers\Writer;
+use Tests\TestCase;
+
+class WriterTest extends TestCase
+{
+    private string $path;
+
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        $this->path = storage_path('framework/testing/static-cache-writer/page.html');
+
+        @unlink($this->path);
+    }
+
+    public function tearDown(): void
+    {
+        @unlink($this->path);
+
+        parent::tearDown();
+    }
+
+    #[Test]
+    public function it_writes_the_content_to_disk()
+    {
+        $written = (new Writer)->write($this->path, '<html>hello</html>');
+
+        $this->assertTrue($written);
+        $this->assertSame('<html>hello</html>', file_get_contents($this->path));
+    }
+
+    #[Test]
+    public function it_truncates_stale_bytes_when_overwriting_with_shorter_content()
+    {
+        $writer = new Writer;
+
+        $writer->write($this->path, '<html>this is a much longer page</html>');
+        $writer->write($this->path, '<html>short</html>');
+
+        $this->assertSame('<html>short</html>', file_get_contents($this->path));
+    }
+}