tests/test_input: restored formatting test

tests/test_input.py

@@ -45,14 +45,14 @@ def test_comments():
     # test for line that includes multiple $ signs
 
 
-# def test_formatting():
-#     """Manually format a file and make sure that the output is not changing."""
-#
-#     input_file = Path(__file__).parent / 'data' / 'test-input-detector.i'
-#     output_file = Path(__file__).parent / 'data' / 'test-input-detector-formatted.i'
-#
-#     result = output_file.read_text()
-#
-#     out = pymcnp.read_input(input_file).to_mcnp()
-#
-#     assert out == result
+def test_formatting():
+    """Manually format a file and make sure that the output is not changing."""
+
+    input_file = Path(__file__).parent / 'data' / 'test-input-detector.i'
+    output_file = Path(__file__).parent / 'data' / 'test-input-detector-formatted.i'
+
+    result = output_file.read_text()
+
+    out = pymcnp.read_input(input_file).to_mcnp()
+
+    assert out == result