func (s *StatsTestSuite) TestCounterBasic(t *C) {
stats, _ := mm.NewStats("counter")
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 3}, 1)
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 9}, 2)
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 11}, 3)
got := stats.Finalize()
t.Check(got.Cnt, Equals, 2)
t.Check(got.Min, Equals, float64(2))
t.Check(got.Avg, Equals, float64(4))
t.Check(got.Max, Equals, float64(6))
}
func (s *StatsTestSuite) TestCounterReset(t *C) {
stats, _ := mm.NewStats("counter")
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 3}, 1)
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 9}, 2) // +6
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 11}, 3) // +2
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 0}, 4) // reset
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 4}, 5) // +4
stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 9}, 6) // +5
got := stats.Finalize()
t.Check(got.Cnt, Equals, 4)
t.Check(got.Min, Equals, float64(2))
t.Check(got.Avg, Equals, float64(4.25))
t.Check(got.Max, Equals, float64(6))
}
func (s *StatsTestSuite) TestValueLap(t *C) {
var err error
stats, _ := mm.NewStats("counter")
err = stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 100}, 1)
t.Check(err, IsNil)
err = stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 200}, 2) // +100
t.Check(err, IsNil)
err = stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 0}, 3) // reset
t.Check(err, IsNil)
err = stats.Add(&mm.Metric{Name: "foo", Type: "counter", Number: 350}, 4) // +350
t.Check(err, NotNil) // lap detected
got := stats.Finalize()
t.Check(got.Cnt, Equals, 2)
t.Check(got.Min, Equals, float64(100))
t.Check(got.Avg, Equals, float64(225))
t.Check(got.Max, Equals, float64(350))
}