Index: tests/pybin/tools.py
===================================================================
--- tests/pybin/tools.py	(revision 080b0a1b9ea6f8e025d73f5d4a94ea745e9646f8)
+++ tests/pybin/tools.py	(revision a468e1e9a78661c54fb73817d6b3b744e10c5a29)
@@ -191,4 +191,15 @@
 	cmd = [s for s in cmd if s]
 	return sh(*cmd, output_file=output_file, error=error)
+
+def make_recon(target):
+	cmd = [
+		*settings.make,
+		'-W',
+		os.path.abspath(os.path.join(settings.BUILDDIR, '../driver/cfa')),
+		'--recon',
+		target
+	]
+	cmd = [s for s in cmd if s]
+	return sh(*cmd, output_file=subprocess.PIPE)
 
 def which(program):