Translate task in conftest.py

driver/conftest.py

@@ -0,0 +1,21 @@
+# This file is read by pytest before running the tests to set them up. We use it
+# to have the SAS+ file for the example task ready for the @pytest.parametrize
+# function in tests.py. Translating the task in setup_module() does not work in
+# this case, because the @pytest.parametrize decorator is executed before
+# setup_module() is called.
+
+import subprocess
+import sys
+
+from .util import REPO_ROOT_DIR
+
+
+def translate():
+    """Create output.sas file for example task."""
+    cmd = [sys.executable, "fast-downward.py", "--translate",
+           "misc/tests/benchmarks/gripper/prob01.pddl"]
+    subprocess.check_call(cmd, cwd=REPO_ROOT_DIR)
+
+
+def pytest_sessionstart(session):
+    translate()

driver/tests.py

@@ -21,22 +21,6 @@
 from .util import REPO_ROOT_DIR, find_domain_filename
 
 
-def translate():
-    """Create translated task."""
-    cmd = [sys.executable, "fast-downward.py", "--translate",
-           "misc/tests/benchmarks/gripper/prob01.pddl"]
-    subprocess.check_call(cmd, cwd=REPO_ROOT_DIR)
-
-# We need to translate the example task when this module is imported to have the
-# SAS+ file ready for the @pytest.parametrize function below. Translating the
-# task in setup_module() does not work here, because the @pytest.parametrize
-# decorator is executed before setup_module() is called. An alternative would be
-# to use a conftest.py file and call translate() in a pytest_sessionstart()
-# function, but that adds another file and leads to dumping the translator
-# output to the terminal.
-translate()
-
-
 def cleanup():
     subprocess.check_call([sys.executable, "fast-downward.py", "--cleanup"],
                           cwd=REPO_ROOT_DIR)