Remove pytest-server-fixtures

The upstream for this module appears dead, and it is broken with the
latest version of python due to [1], so remove it and implement the
functionality locally

[1]: man-group/pytest-plugins#224

pyproject.toml

@@ -31,7 +31,6 @@ dev = [
     "pyshacl >= 0.25.0",
     "pytest >= 7.4",
     "pytest-cov >= 4.1",
-    "pytest-server-fixtures >= 1.7",
 ]
 
 [project.urls]

tests/conftest.py

@@ -9,8 +9,8 @@
 import shutil
 import subprocess
 import time
+from .http import HTTPTestServer
 
-from pytest_server_fixtures.http import SimpleHTTPTestServer
 from pathlib import Path
 
 THIS_FILE = Path(__file__)
@@ -21,19 +21,18 @@
 
 @pytest.fixture
 def http_server():
-    with SimpleHTTPTestServer() as s:
+    with HTTPTestServer() as s:
         s.start()
         yield s
 
 
 @pytest.fixture(scope="session")
 def model_server():
-    with SimpleHTTPTestServer() as s:
-        root = Path(s.document_root)
+    with HTTPTestServer() as s:
         for p in MODEL_DIR.iterdir():
             if not p.is_file():
                 continue
-            shutil.copyfile(p, root / p.name)
+            shutil.copyfile(p, s.document_root / p.name)
         s.start()
         yield s.uri
 

tests/http.py

@@ -0,0 +1,65 @@
+#
+# Copyright (c) 2024 Joshua Watt
+#
+# SPDX-License-Identifier: MIT
+
+import socket
+import subprocess
+import sys
+import tempfile
+
+from pathlib import Path
+from contextlib import closing
+
+
+def get_ephemeral_port(host):
+    with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
+        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        s.bind((host, 0))
+        return s.getsockname()[1]
+
+
+class HTTPTestServer(object):
+    def __init__(self):
+        self.p = None
+        self.temp_dir = None
+
+    def start(self):
+        assert self.p is None, "Server already started"
+
+        self.host = "localhost"
+        self.port = get_ephemeral_port(self.host)
+        self.p = subprocess.Popen(
+            [sys.executable, "-m", "http.server", "--bind", self.host, str(self.port)],
+            cwd=self.document_root,
+        )
+        self.uri = f"http://{self.host}:{self.port}"
+
+        # Wait for server to start
+        while True:
+            with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
+                try:
+                    s.connect((self.host, self.port))
+                    return
+                except ConnectionRefusedError:
+                    continue
+
+    def stop(self):
+        if self.p is None:
+            return
+
+        self.p.terminate()
+        self.p.wait()
+
+    def __enter__(self):
+        self.temp_dir = tempfile.TemporaryDirectory()
+        return self
+
+    def __exit__(self, typ, value, tb):
+        self.stop()
+        self.temp_dir.cleanup()
+        self.temp_dir = None
+
+    @property
+    def document_root(self):
+        return Path(self.temp_dir.name)

tests/test_model_source.py

@@ -3,7 +3,6 @@
 #
 # SPDX-License-Identifier: MIT
 
-import os
 import shutil
 import subprocess
 import pytest
@@ -289,12 +288,8 @@ def test_context_url(model_server):
 
 
 def test_context_args(http_server):
-    shutil.copyfile(
-        TEST_CONTEXT, os.path.join(http_server.document_root, "context.json")
-    )
-    shutil.copyfile(
-        TEST_CONTEXT, os.path.join(http_server.document_root, "context2.json")
-    )
+    shutil.copyfile(TEST_CONTEXT, http_server.document_root / "context.json")
+    shutil.copyfile(TEST_CONTEXT, http_server.document_root / "context2.json")
 
     def do_test(*, contexts=[], url_contexts=[]):
         cmd = [