Tests: move "make test" on macOS and Linux to Python script

build_files/utils/make_utils.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+#
+# Utility functions for make update and make tests.
+
+import subprocess
+import sys
+
+def call(cmd):
+    print(" ".join(cmd))
+
+    # Flush to ensure correct order output on Windows.
+    sys.stdout.flush()
+    sys.stderr.flush()
+
+    retcode = subprocess.call(cmd)
+    if retcode != 0:
+      sys.exit(retcode)