diff --git a/some_tests/coroutines/CoroutineIO.php b/some_tests/coroutines/CoroutineIO.php
deleted file mode 100644
index 007a1e629..000000000
--- a/some_tests/coroutines/CoroutineIO.php
+++ /dev/null
@@ -1,21 +0,0 @@
-<?php
-
-require_once __DIR__ . '/vendor/autoload.php';
-
-use vennv\vapm\CoroutineGen;
-use vennv\vapm\CoroutineScope;
-use vennv\vapm\Dispatchers;
-
-$scope = new CoroutineScope(Dispatchers::IO);
-
-$scope->launch(function () {
-    $file = fopen(__DIR__ . "/test.txt", "w");
-    fwrite($file, "Hello World! Nam");
-    fclose($file);
-});
-
-$scope->launch(function () {
-    echo "Coroutine 2\n";
-});
-
-CoroutineGen::runBlocking($scope);