Re-use built-in web server

test/conftest.py

@@ -205,5 +205,10 @@ def run_web_server(q):
         httpd.serve_forever()
 
 
+@pytest.fixture
+def web_server():
+    return '127.0.0.1', PORT
+
+
 if multiprocessing.current_process().name == 'MainProcess':
     spawn_web_server()

test/test_package_loading.py

-import os
-from pathlib import Path
 
-from http.server import HTTPServer, SimpleHTTPRequestHandler
-import threading
 
-import pytest
+def test_load_from_url(selenium_standalone, web_server):
 
-
-@pytest.fixture
-def static_web_server():
-    # serve artefacts from a different port
-    build_dir = Path(__file__).parent.parent / 'build'
-    os.chdir(build_dir)
-    try:
-        url, port = ('127.0.0.1', 8888)
-        server = HTTPServer((url, port), SimpleHTTPRequestHandler)
-        thread = threading.Thread(target=server.serve_forever)
-        thread.start()
-        yield url, port
-    finally:
-        server.shutdown()
-
-
-def test_load_from_url(selenium_standalone, static_web_server):
-
-    url, port = static_web_server
+    url, port = web_server
 
     selenium_standalone.load_package(f"http://{url}:{port}/pyparsing.js")
     assert "Invalid package name or URI" not in selenium_standalone.logs
@@ -32,6 +10,9 @@ def test_load_from_url(selenium_standalone, static_web_server):
     selenium_standalone.run("from pyparsing import Word, alphas")
     selenium_standalone.run("Word(alphas).parseString('hello')")
 
+    selenium_standalone.load_package(f"http://{url}:{port}/numpy.js")
+    selenium_standalone.run("import numpy as np")
+
 
 def test_uri_mismatch(selenium_standalone):
     selenium_standalone.load_package('pyparsing')