Fix tests for Windows

tests/base.py

@@ -4,6 +4,7 @@
 
 import os
 import subprocess
+import sys
 import tempfile
 import textwrap
 import unittest
@@ -17,7 +18,7 @@ def run_test(self, script, dumppath, commands):
         with tempfile.TemporaryDirectory() as tmpdir:
             with open(f"{tmpdir}/script.py", "w") as f:
                 f.write(script)
-            subprocess.run(normalize_commands(["python", f"{tmpdir}/script.py"]),
+            subprocess.run(normalize_commands([sys.executable, f"{tmpdir}/script.py"]),
                            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
 
             process = subprocess.Popen(normalize_commands(["coredumpy", "load", dumppath]),
@@ -37,7 +38,7 @@ def run_script(self, script, expected_returncode=0):
         with tempfile.TemporaryDirectory() as tmpdir:
             with open(f"{tmpdir}/script.py", "w") as f:
                 f.write(script)
-            process = subprocess.Popen(normalize_commands(["python", f"{tmpdir}/script.py"]),
+            process = subprocess.Popen(normalize_commands([sys.executable, f"{tmpdir}/script.py"]),
                                        stdout=subprocess.PIPE, stderr=subprocess.PIPE)
             stdout, stderr = process.communicate()
             stdout = stdout.decode()

tests/util.py

@@ -3,11 +3,12 @@
 
 
 import os
+import sys
 
 
 def normalize_commands(commands):
     if os.getenv("COVERAGE_RUN"):
-        if commands[0] == "python":
+        if commands[0] == "python" or commands[0] == sys.executable:
             commands = ["coverage", "run", "--parallel-mode"] + commands[1:]
         elif commands[0] == "coredumpy":
             commands = ["coverage", "run", "--parallel-mode", "-m", "coredumpy"] + commands[1:]