Integration test should use a single core

Author: irm-codebase

template/tests/clio_test.py.jinja

@@ -40,15 +40,15 @@ def test_standard_file_existance(module_path, file):
 def test_snakemake_all_failure(module_path):
     """The snakemake 'all' rule should return an error by default."""
     process = subprocess.run(
-        "snakemake --cores 4", shell=True, cwd=module_path, capture_output=True
+        "snakemake --cores 1", shell=True, cwd=module_path, capture_output=True
     )
     assert "INVALID (missing locally)" in str(process.stderr)
 
 
 def test_snakemake_integration_testing(module_path):
     """Run a light-weight test simulating someone using this module."""
     assert subprocess.run(
-        "snakemake --use-conda --cores 4",
+        "snakemake --use-conda --cores 1",
         shell=True,
         check=True,
         cwd=module_path / "tests/integration",