client_golang/metrics/gauge_test.go

88 lines
1.6 KiB
Go

/*
Copyright (c) 2012, Matt T. Proud
All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
*/
package metrics
import (
. "launchpad.net/gocheck"
)
func (s *S) TestCreate(c *C) {
m := GaugeMetric{value: 1.0}
c.Assert(m, Not(IsNil))
c.Check(m.Get(), Equals, 1.0)
}
func (s *S) TestString(c *C) {
m := GaugeMetric{value: 2.0}
c.Check(m.String(), Equals, "[GaugeMetric; value=2.000000]")
}
func (s *S) TestSet(c *C) {
m := GaugeMetric{value: -1.0}
m.Set(-99.0)
c.Check(m.Get(), Equals, -99.0)
}
func (s *S) TestIncrementBy(c *C) {
m := GaugeMetric{value: 1.0}
m.IncrementBy(1.5)
c.Check(m.Get(), Equals, 2.5)
c.Check(m.String(), Equals, "[GaugeMetric; value=2.500000]")
}
func (s *S) TestIncrement(c *C) {
m := GaugeMetric{value: 1.0}
m.Increment()
c.Check(m.Get(), Equals, 2.0)
c.Check(m.String(), Equals, "[GaugeMetric; value=2.000000]")
}
func (s *S) TestDecrementBy(c *C) {
m := GaugeMetric{value: 1.0}
m.DecrementBy(1.0)
c.Check(m.Get(), Equals, 0.0)
c.Check(m.String(), Equals, "[GaugeMetric; value=0.000000]")
}
func (s *S) TestDecrement(c *C) {
m := GaugeMetric{value: 1.0}
m.Decrement()
c.Check(m.Get(), Equals, 0.0)
c.Check(m.String(), Equals, "[GaugeMetric; value=0.000000]")
}
func (s *S) TestGaugeMetricMarshallable(c *C) {
m := GaugeMetric{value: 1.0}
returned := m.Marshallable()
c.Assert(returned, Not(IsNil))
c.Check(returned, HasLen, 2)
c.Check(returned["value"], Equals, 1.0)
c.Check(returned["type"], Equals, "gauge")
}
func (s *S) TestGaugeAsMetric(c *C) {
var metric Metric = &GaugeMetric{value: 1.0}
c.Assert(metric, Not(IsNil))
}