From ca5738e471672a1ae681ee5f439f1104c27a7cc6 Mon Sep 17 00:00:00 2001
From: BonfaceKilz
Date: Fri, 9 Jul 2021 17:59:41 +0300
Subject: db: test_db: Test that a fetch is correct when columns are specified

---
 tests/unit/db/test_db.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'tests/unit/db')

diff --git a/tests/unit/db/test_db.py b/tests/unit/db/test_db.py
index 520e781..056c226 100644
--- a/tests/unit/db/test_db.py
+++ b/tests/unit/db/test_db.py
@@ -7,6 +7,7 @@ from gn3.db import fetchone
 from gn3.db import update
 from gn3.db import diff_from_dict
 from gn3.db.phenotypes import Phenotype
+from gn3.db.phenotypes import Probeset
 from gn3.db.metadata_audit import MetadataAudit
 
 
@@ -95,6 +96,21 @@ class TestCrudMethods(TestCase):
                  "dataset_id = %s AND editor = %s"),
                 (35, 'Rob'))
 
+    def test_probeset_called_with_right_columns(self):
+        """Given a columns argument, test that the correct sql query is
+        constructed"""
+        db_mock = mock.MagicMock()
+        with db_mock.cursor() as cursor:
+            cursor.fetchall.return_value = None
+            fetchone(db_mock,
+                     "ProbeSet",
+                     where=Probeset(name="1446112_at"),
+                     columns=["OMIM", "Probe_set_target_region"])
+            cursor.execute.assert_called_once_with(
+                "SELECT OMIM, Probe_set_target_region FROM ProbeSet WHERE "
+                "Name = %s",
+                ("1446112_at",))
+
     def test_diff_from_dict(self):
         """Test that a correct diff is generated"""
         self.assertEqual(diff_from_dict({"id": 1, "data": "a"},
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