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>

1 files changed, 9 insertions, 0 deletions

diff --git a/cli/tests/unit_node/testdata/child_process_unref.js b/cli/tests/unit_node/testdata/child_process_unref.js
new file mode 100644
index 000000000..cc7815d97
--- /dev/null
+++ b/cli/tests/unit_node/testdata/child_process_unref.js
@@ -0,0 +1,9 @@
+import cp from "node:child_process";
+import * as path from "node:path";
+
+const script = path.join(
+  path.dirname(path.fromFileUrl(import.meta.url)),
+  "infinite_loop.js",
+);
+const childProcess = cp.spawn(Deno.execPath(), ["run", script]);
+childProcess.unref();