test: add unit tests from std/node (#17794)

Adds two test files: "cli/tests/unit_node/process_test.ts" and
"cli/tests/unit_node/child_process_test.ts"

---------

Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>

cli/tests/integration/mod.rs

@@ -70,6 +70,8 @@ mod js_unit_tests;
 mod lint;
 #[path = "lsp_tests.rs"]
 mod lsp;
+#[path = "node_unit_tests.rs"]
+mod node_unit_tests;
 #[path = "npm_tests.rs"]
 mod npm;
 #[path = "repl_tests.rs"]

cli/tests/integration/node_unit_tests.rs

@@ -0,0 +1,21 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+
+use test_util as util;
+
+#[test]
+fn node_unit_tests() {
+  let _g = util::http_server();
+
+  let mut deno = util::deno_cmd()
+    .current_dir(util::root_path())
+    .arg("test")
+    .arg("--unstable")
+    .arg("-A")
+    .arg(util::tests_path().join("unit_node"))
+    .spawn()
+    .expect("failed to spawn script");
+
+  let status = deno.wait().expect("failed to wait for the child process");
+  assert_eq!(Some(0), status.code());
+  assert!(status.success());
+}