19320: Log instance price changes in crunch-run.txt.

[arvados.git] / lib / cloud / price_test.go

diff --git a/lib/cloud/price_test.go b/lib/cloud/price_test.go
new file mode 100644 (file)
index 0000000..e2a4a7e
--- /dev/null
+++ b/lib/cloud/price_test.go
@@ -0,0 +1,32 @@
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
+package cloud
+
+import (
+       "testing"
+       "time"
+
+       . "gopkg.in/check.v1"
+)
+
+func Test(t *testing.T) { TestingT(t) }
+
+type cloudSuite struct{}
+
+var _ = Suite(&cloudSuite{})
+
+func (s *cloudSuite) TestNormalizePriceHistory(c *C) {
+       t0, err := time.Parse(time.RFC3339, "2023-01-01T01:00:00Z")
+       c.Assert(err, IsNil)
+       h := []InstancePrice{
+               {t0.Add(1 * time.Minute), 1.0},
+               {t0.Add(4 * time.Minute), 1.2}, // drop: unchanged price
+               {t0.Add(5 * time.Minute), 1.1},
+               {t0.Add(3 * time.Minute), 1.2},
+               {t0.Add(5 * time.Minute), 1.1}, // drop: duplicate
+               {t0.Add(2 * time.Minute), 1.0}, // drop: out of order, unchanged price
+       }
+       c.Check(NormalizePriceHistory(h), DeepEquals, []InstancePrice{h[2], h[3], h[0]})
+}