Make sure queries don't have any missing bindings

qutebrowser/misc/sql.py

@@ -171,9 +171,13 @@ class Query(QSqlQuery):
     def run(self, **values):
         """Execute the prepared query."""
         log.sql.debug('Running SQL query: "{}"'.format(self.lastQuery()))
+
         for key, val in values.items():
             self.bindValue(':{}'.format(key), val)
         log.sql.debug('query bindings: {}'.format(self.boundValues()))
+        if any(val is None for val in self.boundValues().values()):
+            raise SqlError("Missing bound values!")
+
         if not self.exec_():
             raise SqliteError.from_query('exec', self.lastQuery(),
                                          self.lastError())

tests/unit/misc/test_sql.py

@@ -263,6 +263,11 @@ class TestSqlQuery:
         q.run(answer=42)
         assert q.value() == 42
 
+    def test_run_missing_binding(self):
+        q = sql.Query('SELECT :answer')
+        with pytest.raises(sql.SqlError, match='Missing bound values!'):
+            q.run()
+
     def test_value_missing(self):
         q = sql.Query('SELECT 0 WHERE 0')
         q.run()