Merge pull request googleapis#2534 from tseaver/2511-bigquery-capture…

…-query-when-loading-job-by-name

Capture 'query' attr when loading 'QueryJob' from JSON resource.

bigquery/google/cloud/bigquery/job.py

@@ -1062,6 +1062,8 @@ def _scrub_local_properties(self, cleaned):
            the client's project.
         """
         configuration = cleaned['configuration']['query']
+
+        self.query = configuration['query']
         dest_remote = configuration.get('destinationTable')
 
         if dest_remote is None:

bigquery/unit_tests/test_job.py

@@ -1290,6 +1290,7 @@ def _verifyResourceProperties(self, job, resource):
         self._verifyBooleanResourceProperties(job, config)
         self._verifyIntegerResourceProperties(job, config)
 
+        self.assertEqual(job.query, config['query'])
         if 'createDisposition' in config:
             self.assertEqual(job.create_disposition,
                              config['createDisposition'])
@@ -1596,7 +1597,7 @@ def test_reload_w_bound_client(self):
         RESOURCE = self._makeResource()
         conn = _Connection(RESOURCE)
         client = _Client(project=self.PROJECT, connection=conn)
-        job = self._makeOne(self.JOB_NAME, self.QUERY, client)
+        job = self._makeOne(self.JOB_NAME, None, client)
 
         dataset = Dataset(DS_NAME, client)
         table = Table(DEST_TABLE, dataset)