Add test for export settings attributes

tests/test_code_blocks.py

@@ -32,3 +32,17 @@ def test_block_settings():
     assert result[1].value == expected[1].value
     assert result[1].attrs == expected[1].attrs
     #assert result == expected
+
+
+def test_export_settings():
+    document = StringIO("""
+    #+TITLE: Tests
+#+BEGIN_SRC shell :exports results
+elcato create --path=/tmp/myblog
+#+END_SRC
+
+#+RESULTS:
+result block here
+    """)
+    result = parse(document).doc
+    assert result[2].attrs.get('exports') == ['results']