From c50bfa151ce4858c23e50727ac2bc0996752fe8b Mon Sep 17 00:00:00 2001
From: Douglas Thor <doug.thor@gmail.com>
Date: Wed, 20 Feb 2019 12:33:06 -0800
Subject: [PATCH] Add test to verify that put_metric sets non-given values to
 None (replaces the instance).

---
 tests/test_routes.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/tests/test_routes.py b/tests/test_routes.py
index 49d7107..be6d53b 100644
--- a/tests/test_routes.py
+++ b/tests/test_routes.py
@@ -174,6 +174,29 @@ def test_api_put_metric(client, populated_db):
     assert d['new_value']['units'] == "lines"
 
 
+def test_api_put_metric_sets_other_values_to_none(client, populated_db):
+    name = "with_everything"
+
+    original = client.get("/api/v1/metric/{}".format(name))
+    assert original.status_code == 200
+    original = original.get_json()
+    assert original['units'] == 'percent'
+    assert original['upper_limit'] == 100.0
+    assert original['lower_limit'] == 20.0
+
+    data = {"name": name}
+    rv = client.put("/api/v1/metric/{}".format(name), json=data)
+    assert rv.status_code == 200
+
+    new = client.get("/api/v1/metric/{}".format(name))
+    assert new.status_code == 200
+    new = new.get_json()
+
+    assert new['units'] is None
+    assert new['upper_limit'] is None
+    assert new['lower_limit'] is None
+
+
 def test_api_put_metric_not_found(client, populated_db):
     name = "missing"
     data = {