add test case for --log-json

src/borg/testsuite/archiver.py

@@ -1629,6 +1629,26 @@ class ArchiverTestCase(ArchiverTestCaseBase):
         assert file1['path'] == 'input/file1'
         assert file1['sha256'] == 'b2915eb69f260d8d3c25249195f2c8f4f716ea82ec760ae929732c0262442b2b'
 
+    def test_log_json(self):
+        self.create_test_files()
+        self.cmd('init', '--encryption=repokey', self.repository_location)
+        log = self.cmd('create', '--log-json', self.repository_location + '::test', 'input', '--list', '--debug')
+        print(log)
+        messages = {}  # type -> message, one of each kind
+        for line in log.splitlines():
+            msg = json.loads(line)
+            messages[msg['type']] = msg
+
+        file_status = messages['file_status']
+        assert 'status' in file_status
+        assert file_status['path'].startswith('input')
+
+        log_message = messages['log_message']
+        assert isinstance(log_message['time'], float)
+        assert log_message['levelname'] == 'DEBUG'  # there should only be DEBUG messages
+        assert log_message['name'].startswith('borg.')
+        assert isinstance(log_message['message'], str)
+
     def _get_sizes(self, compression, compressible, size=10000):
         if compressible:
             contents = b'X' * size