test: add test for updated package descriptor

tests/unit/test_lockfile_parse.py

@@ -0,0 +1,48 @@
+"""Test the lockfile current_lockfile_packages function."""
+
+from pathlib import Path
+from unittest.mock import patch
+
+from phylum.ci.common import PackageDescriptor
+from phylum.ci.lockfile import Lockfile
+
+EXPECTED_NUM_PACKAGES = 2
+
+@patch("subprocess.run")
+def test_current_lockfile_packages(mock_run):
+    """Test the `current_lockfile_packages` function of the Lockfile class."""
+    # Prepare the mock
+    mock_run.return_value.stdout = """
+    [
+        {
+            "name": "quote",
+            "version": "1.0.21",
+            "type": "cargo",
+            "lockfile": "Cargo.lock"
+        },
+        {
+            "name": "example",
+            "version": "0.1.0",
+            "type": "npm"
+        }
+    ]
+    """
+
+    lockfile_path = Path("Cargo.lock")
+    cli_path = Path("dummy_cli_path")
+    lockfile = Lockfile(lockfile_path, cli_path, None)
+
+    # Test the current_lockfile_packages method
+    packages = lockfile.current_lockfile_packages()
+    expected_cargo_package = PackageDescriptor("quote", "1.0.21", "cargo", "Cargo.lock")
+    expected_npm_package = PackageDescriptor("example", "0.1.0", "npm")
+
+    assert len(packages) == EXPECTED_NUM_PACKAGES
+    assert expected_cargo_package in packages
+    assert expected_npm_package in packages
+
+    # Ensure the mock was called correctly
+    mock_run.assert_called_once_with(
+        [str(lockfile.cli_path), "parse", str(lockfile.path)],
+        check=True, capture_output=True, text=True,
+    )