Fix history completion delete function.

In order to update SqlQueryModel's rowCount after re-running the query,
we must call setQuery again.

qutebrowser/completion/models/sqlcategory.py

@@ -99,5 +99,6 @@ class SqlCategory(QSqlQueryModel):
                 for i in range(self.columnCount())]
         self.delete_func(data)
         # re-run query to reload updated table
-        with debug.log_time('sql', 'Running completion query'):
+        with debug.log_time('sql', 'Re-running completion query post-delete'):
             self._query.run()
+        self.setQuery(self._query)

tests/helpers/stubs.py

@@ -532,6 +532,10 @@ class WebHistoryStub(sql.SqlTable):
         self.completion = sql.SqlTable("CompletionHistory",
                                        ['url', 'title', 'last_atime'])
 
+    def __contains__(self, url):
+        q = self.contains_query('url')
+        return q.run(val=url).value()
+
     def add_url(self, url, title="", *, redirect=False, atime=None):
         self.insert({'url': url, 'title': title, 'atime': atime,
                      'redirect': redirect})
@@ -540,7 +544,6 @@ class WebHistoryStub(sql.SqlTable):
                                     'title': title,
                                     'last_atime': atime})
 
-
     def delete_url(self, url):
         """Remove all history entries with the given url.
 

tests/unit/completion/test_models.py

@@ -392,8 +392,9 @@ def test_url_completion_delete_history(qtmodeltester, config_stub,
     assert model.data(parent) == "History"
     assert model.data(idx) == 'https://python.org'
 
+    assert 'https://python.org' in web_history_stub
     model.delete_cur_item(idx)
-    assert not web_history_stub.contains('url', 'https://python.org')
+    assert 'https://python.org' not in web_history_stub
 
 
 def test_session_completion(qtmodeltester, session_manager_stub):
@@ -594,7 +595,7 @@ def test_url_completion_benchmark(benchmark, config_stub,
         'title': ['title{}'.format(i) for i in r]
     }
 
-    web_history_stub.completions.insert_batch(entries)
+    web_history_stub.completion.insert_batch(entries)
 
     quickmark_manager_stub.marks = collections.OrderedDict([
         ('title{}'.format(i), 'example.com/{}'.format(i))