From 1517d0426192aa43d70d1a41cbc42f3deeb0af92 Mon Sep 17 00:00:00 2001
From: Florian Forster <octo@collectd.org>
Date: Wed, 31 Jan 2024 13:53:14 +0100
Subject: [PATCH] src/daemon/utils_cache_test.c: Add a test case for decreasing
 gauges.

---
 src/daemon/utils_cache_test.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/daemon/utils_cache_test.c b/src/daemon/utils_cache_test.c
index 6792c3250..29d640b8d 100644
--- a/src/daemon/utils_cache_test.c
+++ b/src/daemon/utils_cache_test.c
@@ -50,6 +50,15 @@ DEF_TEST(uc_get_rate) {
           .type = METRIC_TYPE_GAUGE,
           .want = 2.0,
       },
+      {
+          .name = "decreasing gauge",
+          .first_value = (value_t){.gauge = 100.0},
+          .second_value = (value_t){.gauge = 21.5},
+          .first_time = TIME_T_TO_CDTIME_T(100),
+          .second_time = TIME_T_TO_CDTIME_T(110),
+          .type = METRIC_TYPE_GAUGE,
+          .want = 21.5,
+      },
       {
           .name = "counter",
           .first_value = (value_t){.counter = 42},
-- 
2.47.2