test: add test to remove report-uri

Author: kenjis

tests/system/HTTP/ContentSecurityPolicyTest.php

@@ -379,6 +379,19 @@ public function testReportURI(): void
         $this->assertStringContainsString('report-uri http://example.com/csptracker;', $result);
     }
 
+    #[PreserveGlobalState(false)]
+    #[RunInSeparateProcess]
+    public function testRemoveReportURI(): void
+    {
+        $this->prepare();
+        $this->csp->reportOnly(false);
+        $this->csp->setReportURI('');
+        $this->work();
+
+        $result = $this->getHeaderEmitted('Content-Security-Policy');
+        $this->assertStringNotContainsString('report-uri ', $result);
+    }
+
     #[PreserveGlobalState(false)]
     #[RunInSeparateProcess]
     public function testSandboxFlags(): void