add pytest for loadContents File[]

.gitignore

@@ -1,6 +1,8 @@
 # Generated during tests
 pytestdebug.log
 tmp/
+*.sif
+involucro
 
 # Python temps
 __pycache__/
@@ -59,4 +61,3 @@ cwltool/_version.py
 cwltool_deps
 docs/_build/
 docs/autoapi/
-

tests/test_load_contents.py

@@ -0,0 +1,20 @@
+"""Test the loadContents feature."""
+import json
+from pathlib import Path
+
+from cwltool.main import main
+
+from .util import get_data
+
+
+def test_load_contents_file_array(tmp_path: Path) -> None:
+    """Ensures that a File[] input with loadContents loads each file."""
+    params = [
+        "--outdir", str(tmp_path),
+        get_data("tests/load_contents-array.cwl"),
+        "tests/load_contents-array.yml",
+    ]
+    assert main(params) == 0
+    with open(tmp_path / "data.json") as out_fd:
+        data = json.load(out_fd)
+    assert data == {"data": [1, 2]}