tests: run uwsgi tests in virtual environment

test/requirements.txt

@@ -9,4 +9,3 @@ pycparser
 # Support tests
 psutil
 requests
-uwsgi; sys_platform != 'win32'

test/support/requirements-uwsgi.txt

@@ -0,0 +1 @@
+uwsgi; sys_platform != 'win32'

test/support/test_uwsgi.py

@@ -1,12 +1,17 @@
+import os
 import sys
 from contextlib import contextmanager
 from pathlib import Path
 from subprocess import PIPE
 from subprocess import Popen
+from subprocess import check_output
+from tempfile import TemporaryDirectory
+from test.utils import allpythons
 from test.utils import austin
 from test.utils import compress
 from test.utils import has_pattern
 from test.utils import requires_sudo
+from test.utils import run_python
 from test.utils import threads
 from threading import Thread
 from time import sleep
@@ -24,7 +29,7 @@
 
 
 @contextmanager
-def uwsgi(app="app.py", port=9090, args=[]):
+def uwsgi(app="app.py", port=9090, args=[], env=None):
     with Popen(
         [
             "uwsgi",
@@ -36,6 +41,7 @@ def uwsgi(app="app.py", port=9090, args=[]):
         ],
         stdout=PIPE,
         stderr=PIPE,
+        env=env or os.environ,
     ) as uw:
         sleep(0.5)
 
@@ -55,35 +61,60 @@ def uwsgi(app="app.py", port=9090, args=[]):
                     proc.wait()
 
 
+@contextmanager
+def venv(py, reqs):
+    with TemporaryDirectory() as tmp_path:
+        venv_path = Path(tmp_path) / ".venv"
+        p = run_python(py, "-m", "venv", str(venv_path))
+        p.wait(120)
+        assert 0 == p.returncode, "Virtual environment was created successfully"
+
+        env = os.environ.copy()
+        env["LD_LIBRARY_PATH"] = str(venv_path / "lib")
+        env["PATH"] = str(venv_path / "bin") + os.pathsep + env["PATH"]
+
+        check_output(
+            ["python", "-m", "pip", "install", "-r", reqs, "--use-pep517"], env=env
+        )
+
+        yield env
+
+
 @requires_sudo
-def test_uwsgi():
+@allpythons()
+def test_uwsgi(py):
     request_thread = Thread(target=get, args=("http://localhost:9090",))
 
-    with uwsgi() as uw:
-        request_thread.start()
+    with venv(py, reqs=Path(__file__).parent / "requirements-uwsgi.txt") as env:
+        with uwsgi(env=env) as uw:
+            request_thread.start()
 
-        result = austin("-x", "2", "-Cp", str(uw.pid))
-        assert has_pattern(result.stdout, "app.py:application:5"), compress(
-            result.stdout
-        )
+            result = austin("-x", "2", "-Cp", str(uw.pid))
+            assert has_pattern(result.stdout, "app.py:application:5"), compress(
+                result.stdout
+            )
 
-    request_thread.join()
+        request_thread.join()
 
 
 @requires_sudo
-def test_uwsgi_multiprocess():
+@allpythons()
+def test_uwsgi_multiprocess(py):
     request_thread = Thread(target=get, args=("http://localhost:9091",))
 
-    with uwsgi(port=9091, args=["--processes", "2", "--threads", "2"]) as uw:
-        request_thread.start()
+    with venv(py, reqs=Path(__file__).parent / "requirements-uwsgi.txt") as env:
+        with uwsgi(
+            port=9091, args=["--processes", "2", "--threads", "2"], env=env
+        ) as uw:
+            request_thread.start()
 
-        result = austin("-x", "2", "-Cp", str(uw.pid))
-        assert has_pattern(result.stdout, "app.py:application:5"), compress(
-            result.stdout
-        )
+            result = austin("-x", "2", "-Cp", str(uw.pid))
+            assert has_pattern(result.stdout, "app.py:application:5"), compress(
+                result.stdout
+            )
 
-        ts = threads(result.stdout)
-        assert len(ts) >= 4, ts
-        assert len({p for p, _ in ts}) >= 2, ts
+            ts = threads(result.stdout)
+            assert len(ts) >= 4, ts
+            assert len({p for p, _ in ts}) >= 2, ts
 
-    request_thread.join()
+        request_thread.join()