Removed the Requirement to Install Python and NodeJS (Now Bundled with Borealis)

Dependencies/Python/Lib/test/test_interpreters/test_stress.py

@@ -0,0 +1,68 @@
+import threading
+import unittest
+
+from test import support
+from test.support import import_helper
+from test.support import threading_helper
+# Raise SkipTest if subinterpreters not supported.
+import_helper.import_module('_interpreters')
+from test.support import interpreters
+from .utils import TestBase
+
+
+class StressTests(TestBase):
+
+    # In these tests we generally want a lot of interpreters,
+    # but not so many that any test takes too long.
+
+    @support.requires_resource('cpu')
+    def test_create_many_sequential(self):
+        alive = []
+        for _ in range(100):
+            interp = interpreters.create()
+            alive.append(interp)
+
+    @support.requires_resource('cpu')
+    @threading_helper.requires_working_threading()
+    def test_create_many_threaded(self):
+        alive = []
+        def task():
+            interp = interpreters.create()
+            alive.append(interp)
+        threads = (threading.Thread(target=task) for _ in range(200))
+        with threading_helper.start_threads(threads):
+            pass
+
+    @support.requires_resource('cpu')
+    @threading_helper.requires_working_threading()
+    def test_many_threads_running_interp_in_other_interp(self):
+        interp = interpreters.create()
+
+        script = f"""if True:
+            import _interpreters
+            _interpreters.run_string({interp.id}, '1')
+            """
+
+        def run():
+            interp = interpreters.create()
+            alreadyrunning = (f'{interpreters.InterpreterError}: '
+                              'interpreter already running')
+            success = False
+            while not success:
+                try:
+                    interp.exec(script)
+                except interpreters.ExecutionFailed as exc:
+                    if exc.excinfo.msg != 'interpreter already running':
+                        raise  # re-raise
+                    assert exc.excinfo.type.__name__ == 'InterpreterError'
+                else:
+                    success = True
+
+        threads = (threading.Thread(target=run) for _ in range(200))
+        with threading_helper.start_threads(threads):
+            pass
+
+
+if __name__ == '__main__':
+    # Test needs to be a package, so we can do relative imports.
+    unittest.main()