add clf-s parser tests

jc/parsers/clf_s.py

@@ -197,7 +197,7 @@ def parse(
             streaming_line_input_type_check(line)
             output_line: Dict = {}
 
-            if line == '' or line == '\n':
+            if not line.strip():
                 continue
 
             clf_match = re.match(clf_pattern, line)

tests/test_clf_s.py

@@ -0,0 +1,50 @@
+import os
+import json
+import unittest
+from typing import Dict
+from jc.parsers.clf_s import parse
+
+THIS_DIR = os.path.dirname(os.path.abspath(__file__))
+
+# To create streaming output use:
+# $ cat clf.out | jc --clf-s | jello -c > clf-streaming.json
+
+
+class MyTests(unittest.TestCase):
+    f_in: Dict = {}
+    f_json: Dict = {}
+
+    @classmethod
+    def setUpClass(cls):
+        fixtures = {
+            'clf_s': (
+                'fixtures/generic/common-log-format.log',
+                'fixtures/generic/common-log-format-streaming.json')
+        }
+
+        for file, filepaths in fixtures.items():
+            with open(os.path.join(THIS_DIR, filepaths[0]), 'r', encoding='utf-8') as a, \
+                 open(os.path.join(THIS_DIR, filepaths[1]), 'r', encoding='utf-8') as b:
+                cls.f_in[file] = a.read()
+                cls.f_json[file] = json.loads(b.read())
+
+
+    def test_clf_s_nodata(self):
+        """
+        Test 'clf-s' with no data
+        """
+        self.assertEqual(list(parse([], quiet=True)), [])
+
+
+    def test_clf_s_centos_7_7(self):
+        """
+        Test 'clf-s' with various logs
+        """
+        self.assertEqual(
+            list(parse(self.f_in['clf_s'].splitlines(), quiet=True)),
+            self.f_json['clf_s']
+        )
+
+
+if __name__ == '__main__':
+    unittest.main()