add basic test for python query

add test for creating query object and setting search_for
related to Bug 796137 and fix in commit 1a7c5b9a32

bindings/python/tests/CMakeLists.txt

@@ -22,6 +22,7 @@ set(test_python_bindings_DATA
         test_commodity.py
         test_numeric.py
         test_split.py
-        test_transaction.py)
+        test_transaction.py
+        test_query.py)
 
 set_dist_list(test_python_bindings_DIST CMakeLists.txt ${test_python_bindings_DATA})

bindings/python/tests/runTests.py.in

@@ -12,6 +12,7 @@ from test_transaction import TestTransaction
 from test_business import TestBusiness
 from test_commodity import TestCommodity, TestCommodityNamespace
 from test_numeric import TestGncNumeric
+from test_query import TestQuery
 
 if __name__ == '__main__':
     unittest.main()

bindings/python/tests/test_query.py

@@ -0,0 +1,23 @@
+from unittest import TestCase, main
+
+from gnucash import Query
+from gnucash.gnucash_core_c import GNC_ID_INVOICE
+
+
+class TestQuery(TestCase):
+    def test_create(self):
+        query = Query()
+        self.assertIsInstance(query, Query)
+
+    def test_search_for(self):
+        query = Query()
+
+        query.search_for(GNC_ID_INVOICE)
+        self.assertEqual(query.get_search_for(), GNC_ID_INVOICE)
+
+        obj_type = 'gncInvoice'
+        query.search_for(obj_type)
+        self.assertEqual(query.get_search_for(), obj_type)
+
+if __name__ == '__main__':
+    main()