Updated testing

Signed-off-by: shlao <[email protected]>

Author: shlao

insights/tests/datasources/test_host_key_files.py

@@ -1,4 +1,7 @@
+import pytest
+
 from mock.mock import patch, mock_open
+from insights.core.dr import SkipComponent
 from insights.core.spec_factory import DatasourceProvider
 from insights.specs.datasources.host_key_files import host_key_files
 
@@ -31,3 +34,14 @@ def test_host_key_files(mock_exists, mock_ds_open):
 
     expected = DatasourceProvider(content=EXPECTED_RESULT, relative_path=RELATIVE_PATH)
     assert len(result.content) == len(expected.content) == 2
+
+
+@patch(
+    'insights.specs.datasources.host_key_files.open', new_callable=mock_open, read_data=[""]
+)
+@patch('os.path.exists')
+def test_host_key_files_empty_log(mock_exists, mock_ds_open):
+    broker = {}
+    with pytest.raises(SkipComponent) as e:
+        host_key_files(broker)
+    assert 'SkipComponent' in str(e)