use singularity instead of apptainer

Author: natthan-pigoux

tests/test_singularity.py

@@ -172,7 +172,7 @@ def test_singularity_local_sandbox_image(tmp_path: Path):
         container_path = Path(f"{workdir}/container_repo/")
         container_path.mkdir()
         cmd = [
-            "apptainer",
+            "singularity",
             "build",
             "--sandbox",
             container_path / "alpine",
@@ -191,4 +191,4 @@ def test_singularity_local_sandbox_image(tmp_path: Path):
             )
             assert result_code == 0
         else:
-            pytest.skip(f"Failed to build the Singularity image: {build.stderr}")
+            pytest.skip(f"Failed to build the Apptainer image: {build.stderr}")

tests/util.py

@@ -40,7 +40,6 @@ def get_data(filename: str) -> str:
         filepath = Path(os.path.dirname(__file__)) / ".." / filename
     return str(filepath.resolve())
 
-
 needs_docker = pytest.mark.skipif(
     not bool(shutil.which("docker")),
     reason="Requires the docker executable on the system path.",